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Date: Mon, 15 Jul 2019 20:42:27 +0800
From: kbuild test robot <lkp@...el.com>
To: Chao Yu <yuchao0@...wei.com>, Chao Yu <chao@...nel.org>
Cc: kbuild-all@...org, linux-kernel@...r.kernel.org,
Jaegeuk Kim <jaegeuk@...nel.org>
Subject: fs/f2fs/file.c:42:54: sparse: sparse: cast from restricted vm_fault_t
tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux.git master
head: a2d79c7174aeb43b13020dd53d85a7aefdd9f3e5
commit: 36af5f407bbb2da6dd9809dd6f173dd377b57d74 f2fs: fix sparse warning
date: 7 weeks ago
reproduce:
# apt-get install sparse
# sparse version: v0.6.1-rc1-7-g2b96cd8-dirty
git checkout 36af5f407bbb2da6dd9809dd6f173dd377b57d74
make ARCH=x86_64 allmodconfig
make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>
sparse warnings: (new ones prefixed by >>)
>> fs/f2fs/file.c:42:54: sparse: sparse: cast from restricted vm_fault_t
vim +42 fs/f2fs/file.c
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 32
ea4d479bb360372 Souptick Joarder 2018-04-15 33 static vm_fault_t f2fs_filemap_fault(struct vm_fault *vmf)
5a3a2d83cda82df Qiuyang Sun 2017-05-18 34 {
5a3a2d83cda82df Qiuyang Sun 2017-05-18 35 struct inode *inode = file_inode(vmf->vma->vm_file);
ea4d479bb360372 Souptick Joarder 2018-04-15 36 vm_fault_t ret;
5a3a2d83cda82df Qiuyang Sun 2017-05-18 37
5a3a2d83cda82df Qiuyang Sun 2017-05-18 38 down_read(&F2FS_I(inode)->i_mmap_sem);
ea4d479bb360372 Souptick Joarder 2018-04-15 39 ret = filemap_fault(vmf);
5a3a2d83cda82df Qiuyang Sun 2017-05-18 40 up_read(&F2FS_I(inode)->i_mmap_sem);
5a3a2d83cda82df Qiuyang Sun 2017-05-18 41
d764834378a9870 Chao Yu 2019-04-15 @42 trace_f2fs_filemap_fault(inode, vmf->pgoff, (unsigned long)ret);
d764834378a9870 Chao Yu 2019-04-15 43
ea4d479bb360372 Souptick Joarder 2018-04-15 44 return ret;
5a3a2d83cda82df Qiuyang Sun 2017-05-18 45 }
5a3a2d83cda82df Qiuyang Sun 2017-05-18 46
ea4d479bb360372 Souptick Joarder 2018-04-15 47 static vm_fault_t f2fs_vm_page_mkwrite(struct vm_fault *vmf)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 48 {
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 49 struct page *page = vmf->page;
11bac80004499ea Dave Jiang 2017-02-24 50 struct inode *inode = file_inode(vmf->vma->vm_file);
4081363fbe84a7e Jaegeuk Kim 2014-09-02 51 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
39a8695824510a9 Chao Yu 2018-09-27 52 struct dnode_of_data dn = { .node_changed = false };
e479556bfdd1366 Gu Zheng 2013-09-27 53 int err;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 54
1f227a3e215d361 Jaegeuk Kim 2017-10-23 55 if (unlikely(f2fs_cp_error(sbi))) {
1f227a3e215d361 Jaegeuk Kim 2017-10-23 56 err = -EIO;
1f227a3e215d361 Jaegeuk Kim 2017-10-23 57 goto err;
1f227a3e215d361 Jaegeuk Kim 2017-10-23 58 }
1f227a3e215d361 Jaegeuk Kim 2017-10-23 59
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 60 sb_start_pagefault(inode->i_sb);
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 61
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 62 f2fs_bug_on(sbi, f2fs_has_inline_data(inode));
b067ba1f1b3fa7e Jaegeuk Kim 2014-08-07 63
11bac80004499ea Dave Jiang 2017-02-24 64 file_update_time(vmf->vma->vm_file);
5a3a2d83cda82df Qiuyang Sun 2017-05-18 65 down_read(&F2FS_I(inode)->i_mmap_sem);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 66 lock_page(page);
6bacf52fb58aeb3 Jaegeuk Kim 2013-12-06 67 if (unlikely(page->mapping != inode->i_mapping ||
9851e6e18943f25 Namjae Jeon 2013-04-28 68 page_offset(page) > i_size_read(inode) ||
6bacf52fb58aeb3 Jaegeuk Kim 2013-12-06 69 !PageUptodate(page))) {
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 70 unlock_page(page);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 71 err = -EFAULT;
5a3a2d83cda82df Qiuyang Sun 2017-05-18 72 goto out_sem;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 73 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 74
39a8695824510a9 Chao Yu 2018-09-27 75 /* block allocation */
39a8695824510a9 Chao Yu 2018-09-27 76 __do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, true);
39a8695824510a9 Chao Yu 2018-09-27 77 set_new_dnode(&dn, inode, NULL, NULL, 0);
39a8695824510a9 Chao Yu 2018-09-27 78 err = f2fs_get_block(&dn, page->index);
39a8695824510a9 Chao Yu 2018-09-27 79 f2fs_put_dnode(&dn);
39a8695824510a9 Chao Yu 2018-09-27 80 __do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, false);
39a8695824510a9 Chao Yu 2018-09-27 81 if (err) {
39a8695824510a9 Chao Yu 2018-09-27 82 unlock_page(page);
39a8695824510a9 Chao Yu 2018-09-27 83 goto out_sem;
39a8695824510a9 Chao Yu 2018-09-27 84 }
39a8695824510a9 Chao Yu 2018-09-27 85
39a8695824510a9 Chao Yu 2018-09-27 86 /* fill the page */
bae0ee7a767ceee Chao Yu 2018-12-25 87 f2fs_wait_on_page_writeback(page, DATA, false, true);
39a8695824510a9 Chao Yu 2018-09-27 88
39a8695824510a9 Chao Yu 2018-09-27 89 /* wait for GCed page writeback via META_MAPPING */
39a8695824510a9 Chao Yu 2018-09-27 90 f2fs_wait_on_block_writeback(inode, dn.data_blkaddr);
39a8695824510a9 Chao Yu 2018-09-27 91
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 92 /*
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 93 * check to see if the page is mapped already (no holes)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 94 */
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 95 if (PageMappedToDisk(page))
39a8695824510a9 Chao Yu 2018-09-27 96 goto out_sem;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 97
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 98 /* page is wholly or partially inside EOF */
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 99 if (((loff_t)(page->index + 1) << PAGE_SHIFT) >
9edcdabf36422d1 Chao Yu 2015-09-11 100 i_size_read(inode)) {
193bea1dd8dadc4 youngjun yoo 2018-05-30 101 loff_t offset;
f11e98bdbe7d6ee youngjun yoo 2018-05-30 102
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 103 offset = i_size_read(inode) & ~PAGE_MASK;
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 104 zero_user_segment(page, offset, PAGE_SIZE);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 105 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 106 set_page_dirty(page);
237c0790e54020d Jaegeuk Kim 2016-06-30 107 if (!PageUptodate(page))
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 108 SetPageUptodate(page);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 109
b0af6d491a6b5f5 Chao Yu 2017-08-02 110 f2fs_update_iostat(sbi, APP_MAPPED_IO, F2FS_BLKSIZE);
c75f2feb80eb8cb Sahitya Tummala 2018-10-05 111 f2fs_update_time(sbi, REQ_TIME);
b0af6d491a6b5f5 Chao Yu 2017-08-02 112
e943a10d94f6076 Jaegeuk Kim 2013-10-25 113 trace_f2fs_vm_page_mkwrite(page, DATA);
5a3a2d83cda82df Qiuyang Sun 2017-05-18 114 out_sem:
5a3a2d83cda82df Qiuyang Sun 2017-05-18 115 up_read(&F2FS_I(inode)->i_mmap_sem);
39a8695824510a9 Chao Yu 2018-09-27 116
39a8695824510a9 Chao Yu 2018-09-27 117 f2fs_balance_fs(sbi, dn.node_changed);
39a8695824510a9 Chao Yu 2018-09-27 118
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 119 sb_end_pagefault(inode->i_sb);
1f227a3e215d361 Jaegeuk Kim 2017-10-23 120 err:
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 121 return block_page_mkwrite_return(err);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 122 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 123
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 124 static const struct vm_operations_struct f2fs_file_vm_ops = {
5a3a2d83cda82df Qiuyang Sun 2017-05-18 125 .fault = f2fs_filemap_fault,
f1820361f83d556 Kirill A. Shutemov 2014-04-07 126 .map_pages = filemap_map_pages,
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 127 .page_mkwrite = f2fs_vm_page_mkwrite,
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 128 };
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 129
354a3399dc6f7e5 Jaegeuk Kim 2013-06-14 130 static int get_parent_ino(struct inode *inode, nid_t *pino)
354a3399dc6f7e5 Jaegeuk Kim 2013-06-14 131 {
354a3399dc6f7e5 Jaegeuk Kim 2013-06-14 132 struct dentry *dentry;
354a3399dc6f7e5 Jaegeuk Kim 2013-06-14 133
354a3399dc6f7e5 Jaegeuk Kim 2013-06-14 134 inode = igrab(inode);
354a3399dc6f7e5 Jaegeuk Kim 2013-06-14 135 dentry = d_find_any_alias(inode);
354a3399dc6f7e5 Jaegeuk Kim 2013-06-14 136 iput(inode);
354a3399dc6f7e5 Jaegeuk Kim 2013-06-14 137 if (!dentry)
354a3399dc6f7e5 Jaegeuk Kim 2013-06-14 138 return 0;
354a3399dc6f7e5 Jaegeuk Kim 2013-06-14 139
f0947e5ccedb749 Jaegeuk Kim 2013-07-22 140 *pino = parent_ino(dentry);
f0947e5ccedb749 Jaegeuk Kim 2013-07-22 141 dput(dentry);
354a3399dc6f7e5 Jaegeuk Kim 2013-06-14 142 return 1;
354a3399dc6f7e5 Jaegeuk Kim 2013-06-14 143 }
354a3399dc6f7e5 Jaegeuk Kim 2013-06-14 144
a5fd505092863c5 Chao Yu 2017-11-06 145 static inline enum cp_reason_type need_do_checkpoint(struct inode *inode)
9d1589ef2edeb45 Chao Yu 2014-08-20 146 {
4081363fbe84a7e Jaegeuk Kim 2014-09-02 147 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
a5fd505092863c5 Chao Yu 2017-11-06 148 enum cp_reason_type cp_reason = CP_NO_NEEDED;
9d1589ef2edeb45 Chao Yu 2014-08-20 149
a5fd505092863c5 Chao Yu 2017-11-06 150 if (!S_ISREG(inode->i_mode))
a5fd505092863c5 Chao Yu 2017-11-06 151 cp_reason = CP_NON_REGULAR;
a5fd505092863c5 Chao Yu 2017-11-06 152 else if (inode->i_nlink != 1)
a5fd505092863c5 Chao Yu 2017-11-06 153 cp_reason = CP_HARDLINK;
bbf156f7afa7f3c Jaegeuk Kim 2016-08-29 154 else if (is_sbi_flag_set(sbi, SBI_NEED_CP))
a5fd505092863c5 Chao Yu 2017-11-06 155 cp_reason = CP_SB_NEED_CP;
9d1589ef2edeb45 Chao Yu 2014-08-20 156 else if (file_wrong_pino(inode))
a5fd505092863c5 Chao Yu 2017-11-06 157 cp_reason = CP_WRONG_PINO;
4d57b86dd86404f Chao Yu 2018-05-30 158 else if (!f2fs_space_for_roll_forward(sbi))
a5fd505092863c5 Chao Yu 2017-11-06 159 cp_reason = CP_NO_SPC_ROLL;
4d57b86dd86404f Chao Yu 2018-05-30 160 else if (!f2fs_is_checkpointed_node(sbi, F2FS_I(inode)->i_pino))
a5fd505092863c5 Chao Yu 2017-11-06 161 cp_reason = CP_NODE_NEED_CP;
d5053a34a9cc797 Jaegeuk Kim 2014-10-30 162 else if (test_opt(sbi, FASTBOOT))
a5fd505092863c5 Chao Yu 2017-11-06 163 cp_reason = CP_FASTBOOT_MODE;
63189b785960c33 Chao Yu 2018-03-08 164 else if (F2FS_OPTION(sbi).active_logs == 2)
a5fd505092863c5 Chao Yu 2017-11-06 165 cp_reason = CP_SPEC_LOG_NUM;
63189b785960c33 Chao Yu 2018-03-08 166 else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT &&
4d57b86dd86404f Chao Yu 2018-05-30 167 f2fs_need_dentry_mark(sbi, inode->i_ino) &&
4d57b86dd86404f Chao Yu 2018-05-30 168 f2fs_exist_written_data(sbi, F2FS_I(inode)->i_pino,
4d57b86dd86404f Chao Yu 2018-05-30 169 TRANS_DIR_INO))
0a007b97aad6e17 Jaegeuk Kim 2017-12-28 170 cp_reason = CP_RECOVER_DIR;
9d1589ef2edeb45 Chao Yu 2014-08-20 171
a5fd505092863c5 Chao Yu 2017-11-06 172 return cp_reason;
9d1589ef2edeb45 Chao Yu 2014-08-20 173 }
9d1589ef2edeb45 Chao Yu 2014-08-20 174
9c7bb702122fdf7 Changman Lee 2014-12-08 175 static bool need_inode_page_update(struct f2fs_sb_info *sbi, nid_t ino)
9c7bb702122fdf7 Changman Lee 2014-12-08 176 {
9c7bb702122fdf7 Changman Lee 2014-12-08 177 struct page *i = find_get_page(NODE_MAPPING(sbi), ino);
9c7bb702122fdf7 Changman Lee 2014-12-08 178 bool ret = false;
9c7bb702122fdf7 Changman Lee 2014-12-08 179 /* But we need to avoid that there are some inode updates */
4d57b86dd86404f Chao Yu 2018-05-30 180 if ((i && PageDirty(i)) || f2fs_need_inode_block_update(sbi, ino))
9c7bb702122fdf7 Changman Lee 2014-12-08 181 ret = true;
9c7bb702122fdf7 Changman Lee 2014-12-08 182 f2fs_put_page(i, 0);
9c7bb702122fdf7 Changman Lee 2014-12-08 183 return ret;
9c7bb702122fdf7 Changman Lee 2014-12-08 184 }
9c7bb702122fdf7 Changman Lee 2014-12-08 185
51455b19384d26a Changman Lee 2014-12-08 186 static void try_to_fix_pino(struct inode *inode)
51455b19384d26a Changman Lee 2014-12-08 187 {
51455b19384d26a Changman Lee 2014-12-08 188 struct f2fs_inode_info *fi = F2FS_I(inode);
51455b19384d26a Changman Lee 2014-12-08 189 nid_t pino;
51455b19384d26a Changman Lee 2014-12-08 190
51455b19384d26a Changman Lee 2014-12-08 191 down_write(&fi->i_sem);
51455b19384d26a Changman Lee 2014-12-08 192 if (file_wrong_pino(inode) && inode->i_nlink == 1 &&
51455b19384d26a Changman Lee 2014-12-08 193 get_parent_ino(inode, &pino)) {
205b98221cdf72b Jaegeuk Kim 2016-05-20 194 f2fs_i_pino_write(inode, pino);
51455b19384d26a Changman Lee 2014-12-08 195 file_got_pino(inode);
51455b19384d26a Changman Lee 2014-12-08 196 }
ee6d182f2a19d5d Jaegeuk Kim 2016-05-20 197 up_write(&fi->i_sem);
51455b19384d26a Changman Lee 2014-12-08 198 }
51455b19384d26a Changman Lee 2014-12-08 199
608514deba38c86 Jaegeuk Kim 2016-04-15 200 static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end,
608514deba38c86 Jaegeuk Kim 2016-04-15 201 int datasync, bool atomic)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 202 {
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 203 struct inode *inode = file->f_mapping->host;
4081363fbe84a7e Jaegeuk Kim 2014-09-02 204 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2403c155b83c09d Jaegeuk Kim 2014-09-10 205 nid_t ino = inode->i_ino;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 206 int ret = 0;
a5fd505092863c5 Chao Yu 2017-11-06 207 enum cp_reason_type cp_reason = 0;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 208 struct writeback_control wbc = {
c81bf1c84f69246 Jaegeuk Kim 2014-03-03 209 .sync_mode = WB_SYNC_ALL,
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 210 .nr_to_write = LONG_MAX,
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 211 .for_reclaim = 0,
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 212 };
50fa53eccf9f911 Chao Yu 2018-08-02 213 unsigned int seq_id = 0;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 214
4354994f097d068 Daniel Rosenberg 2018-08-20 215 if (unlikely(f2fs_readonly(inode->i_sb) ||
4354994f097d068 Daniel Rosenberg 2018-08-20 216 is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
1fa95b0b6798164 Namjae Jeon 2012-12-01 217 return 0;
1fa95b0b6798164 Namjae Jeon 2012-12-01 218
a2a4a7e4abb27c8 Namjae Jeon 2013-04-20 219 trace_f2fs_sync_file_enter(inode);
ea1aa12ca237149 Jaegeuk Kim 2014-07-24 220
b61ac5b720146c6 Yunlei He 2018-11-06 221 if (S_ISDIR(inode->i_mode))
b61ac5b720146c6 Yunlei He 2018-11-06 222 goto go_write;
b61ac5b720146c6 Yunlei He 2018-11-06 223
ea1aa12ca237149 Jaegeuk Kim 2014-07-24 224 /* if fdatasync is triggered, let's do in-place-update */
c46a155bdf3c887 Jaegeuk Kim 2015-12-31 225 if (datasync || get_dirty_pages(inode) <= SM_I(sbi)->min_fsync_blocks)
91942321e4c9f84 Jaegeuk Kim 2016-05-20 226 set_inode_flag(inode, FI_NEED_IPU);
3b49c9a1e984b52 Jeff Layton 2017-07-07 227 ret = file_write_and_wait_range(file, start, end);
91942321e4c9f84 Jaegeuk Kim 2016-05-20 228 clear_inode_flag(inode, FI_NEED_IPU);
c1ce1b02bb25640 Jaegeuk Kim 2014-09-10 229
a2a4a7e4abb27c8 Namjae Jeon 2013-04-20 230 if (ret) {
a5fd505092863c5 Chao Yu 2017-11-06 231 trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 232 return ret;
a2a4a7e4abb27c8 Namjae Jeon 2013-04-20 233 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 234
9c7bb702122fdf7 Changman Lee 2014-12-08 235 /* if the inode is dirty, let's recover all the time */
281518c694a5228 Chao Yu 2016-11-17 236 if (!f2fs_skip_inode_update(inode, datasync)) {
2286c0205d1478d Jaegeuk Kim 2015-08-15 237 f2fs_write_inode(inode, NULL);
9c7bb702122fdf7 Changman Lee 2014-12-08 238 goto go_write;
9c7bb702122fdf7 Changman Lee 2014-12-08 239 }
9c7bb702122fdf7 Changman Lee 2014-12-08 240
6d99ba41a72c121 Jaegeuk Kim 2014-07-24 241 /*
6d99ba41a72c121 Jaegeuk Kim 2014-07-24 242 * if there is no written data, don't waste time to write recovery info.
6d99ba41a72c121 Jaegeuk Kim 2014-07-24 243 */
91942321e4c9f84 Jaegeuk Kim 2016-05-20 244 if (!is_inode_flag_set(inode, FI_APPEND_WRITE) &&
4d57b86dd86404f Chao Yu 2018-05-30 245 !f2fs_exist_written_data(sbi, ino, APPEND_INO)) {
19c9c466e5c7940 Jaegeuk Kim 2014-09-10 246
9c7bb702122fdf7 Changman Lee 2014-12-08 247 /* it may call write_inode just prior to fsync */
9c7bb702122fdf7 Changman Lee 2014-12-08 248 if (need_inode_page_update(sbi, ino))
19c9c466e5c7940 Jaegeuk Kim 2014-09-10 249 goto go_write;
19c9c466e5c7940 Jaegeuk Kim 2014-09-10 250
91942321e4c9f84 Jaegeuk Kim 2016-05-20 251 if (is_inode_flag_set(inode, FI_UPDATE_WRITE) ||
4d57b86dd86404f Chao Yu 2018-05-30 252 f2fs_exist_written_data(sbi, ino, UPDATE_INO))
6d99ba41a72c121 Jaegeuk Kim 2014-07-24 253 goto flush_out;
6d99ba41a72c121 Jaegeuk Kim 2014-07-24 254 goto out;
6d99ba41a72c121 Jaegeuk Kim 2014-07-24 255 }
19c9c466e5c7940 Jaegeuk Kim 2014-09-10 256 go_write:
e5d2385ed6d8543 Jaegeuk Kim 2013-07-03 257 /*
e5d2385ed6d8543 Jaegeuk Kim 2013-07-03 258 * Both of fdatasync() and fsync() are able to be recovered from
e5d2385ed6d8543 Jaegeuk Kim 2013-07-03 259 * sudden-power-off.
e5d2385ed6d8543 Jaegeuk Kim 2013-07-03 260 */
91942321e4c9f84 Jaegeuk Kim 2016-05-20 261 down_read(&F2FS_I(inode)->i_sem);
a5fd505092863c5 Chao Yu 2017-11-06 262 cp_reason = need_do_checkpoint(inode);
91942321e4c9f84 Jaegeuk Kim 2016-05-20 263 up_read(&F2FS_I(inode)->i_sem);
d928bfbfe77aa45 Jaegeuk Kim 2014-03-20 264
a5fd505092863c5 Chao Yu 2017-11-06 265 if (cp_reason) {
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 266 /* all the dirty node pages should be flushed for POR */
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 267 ret = f2fs_sync_fs(inode->i_sb, 1);
d928bfbfe77aa45 Jaegeuk Kim 2014-03-20 268
51455b19384d26a Changman Lee 2014-12-08 269 /*
51455b19384d26a Changman Lee 2014-12-08 270 * We've secured consistency through sync_fs. Following pino
51455b19384d26a Changman Lee 2014-12-08 271 * will be used only for fsynced inodes after checkpoint.
51455b19384d26a Changman Lee 2014-12-08 272 */
51455b19384d26a Changman Lee 2014-12-08 273 try_to_fix_pino(inode);
91942321e4c9f84 Jaegeuk Kim 2016-05-20 274 clear_inode_flag(inode, FI_APPEND_WRITE);
91942321e4c9f84 Jaegeuk Kim 2016-05-20 275 clear_inode_flag(inode, FI_UPDATE_WRITE);
354a3399dc6f7e5 Jaegeuk Kim 2013-06-14 276 goto out;
354a3399dc6f7e5 Jaegeuk Kim 2013-06-14 277 }
88bd02c9472a166 Jaegeuk Kim 2014-09-15 278 sync_nodes:
c29fd0c0e26dacb Chao Yu 2018-06-04 279 atomic_inc(&sbi->wb_sync_req[NODE]);
50fa53eccf9f911 Chao Yu 2018-08-02 280 ret = f2fs_fsync_node_pages(sbi, inode, &wbc, atomic, &seq_id);
c29fd0c0e26dacb Chao Yu 2018-06-04 281 atomic_dec(&sbi->wb_sync_req[NODE]);
c267ec1526da2d3 Jaegeuk Kim 2016-04-15 282 if (ret)
c267ec1526da2d3 Jaegeuk Kim 2016-04-15 283 goto out;
88bd02c9472a166 Jaegeuk Kim 2014-09-15 284
871f599f4a869d2 Jaegeuk Kim 2015-01-09 285 /* if cp_error was enabled, we should avoid infinite loop */
6d5a1495eebd441 Chao Yu 2015-12-24 286 if (unlikely(f2fs_cp_error(sbi))) {
6d5a1495eebd441 Chao Yu 2015-12-24 287 ret = -EIO;
871f599f4a869d2 Jaegeuk Kim 2015-01-09 288 goto out;
6d5a1495eebd441 Chao Yu 2015-12-24 289 }
871f599f4a869d2 Jaegeuk Kim 2015-01-09 290
4d57b86dd86404f Chao Yu 2018-05-30 291 if (f2fs_need_inode_block_update(sbi, ino)) {
7c45729a4d6d1c9 Jaegeuk Kim 2016-10-14 292 f2fs_mark_inode_dirty_sync(inode, true);
51455b19384d26a Changman Lee 2014-12-08 293 f2fs_write_inode(inode, NULL);
88bd02c9472a166 Jaegeuk Kim 2014-09-15 294 goto sync_nodes;
398b1ac5a572198 Jaegeuk Kim 2012-12-19 295 }
88bd02c9472a166 Jaegeuk Kim 2014-09-15 296
b6a245eb34cd935 Jaegeuk Kim 2017-07-28 297 /*
b6a245eb34cd935 Jaegeuk Kim 2017-07-28 298 * If it's atomic_write, it's just fine to keep write ordering. So
b6a245eb34cd935 Jaegeuk Kim 2017-07-28 299 * here we don't need to wait for node write completion, since we use
b6a245eb34cd935 Jaegeuk Kim 2017-07-28 300 * node chain which serializes node blocks. If one of node writes are
b6a245eb34cd935 Jaegeuk Kim 2017-07-28 301 * reordered, we can see simply broken chain, resulting in stopping
b6a245eb34cd935 Jaegeuk Kim 2017-07-28 302 * roll-forward recovery. It means we'll recover all or none node blocks
b6a245eb34cd935 Jaegeuk Kim 2017-07-28 303 * given fsync mark.
b6a245eb34cd935 Jaegeuk Kim 2017-07-28 304 */
b6a245eb34cd935 Jaegeuk Kim 2017-07-28 305 if (!atomic) {
50fa53eccf9f911 Chao Yu 2018-08-02 306 ret = f2fs_wait_on_node_pages_writeback(sbi, seq_id);
cfe58f9dcd9afe1 Jaegeuk Kim 2013-10-31 307 if (ret)
cfe58f9dcd9afe1 Jaegeuk Kim 2013-10-31 308 goto out;
b6a245eb34cd935 Jaegeuk Kim 2017-07-28 309 }
6d99ba41a72c121 Jaegeuk Kim 2014-07-24 310
6d99ba41a72c121 Jaegeuk Kim 2014-07-24 311 /* once recovery info is written, don't need to tack this */
4d57b86dd86404f Chao Yu 2018-05-30 312 f2fs_remove_ino_entry(sbi, ino, APPEND_INO);
91942321e4c9f84 Jaegeuk Kim 2016-05-20 313 clear_inode_flag(inode, FI_APPEND_WRITE);
6d99ba41a72c121 Jaegeuk Kim 2014-07-24 314 flush_out:
d6290814b018aa9 Jaegeuk Kim 2018-05-25 315 if (!atomic && F2FS_OPTION(sbi).fsync_mode != FSYNC_MODE_NOBARRIER)
39d787bec4f792e Chao Yu 2017-09-29 316 ret = f2fs_issue_flush(sbi, inode->i_ino);
3f06252f7aa5862 Chao Yu 2017-09-29 317 if (!ret) {
4d57b86dd86404f Chao Yu 2018-05-30 318 f2fs_remove_ino_entry(sbi, ino, UPDATE_INO);
91942321e4c9f84 Jaegeuk Kim 2016-05-20 319 clear_inode_flag(inode, FI_UPDATE_WRITE);
4d57b86dd86404f Chao Yu 2018-05-30 320 f2fs_remove_ino_entry(sbi, ino, FLUSH_INO);
3f06252f7aa5862 Chao Yu 2017-09-29 321 }
d0239e1bf5204d6 Jaegeuk Kim 2016-01-08 322 f2fs_update_time(sbi, REQ_TIME);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 323 out:
a5fd505092863c5 Chao Yu 2017-11-06 324 trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret);
05ca3632e5a73b4 Jaegeuk Kim 2015-04-23 325 f2fs_trace_ios(NULL, 1);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 326 return ret;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 327 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 328
608514deba38c86 Jaegeuk Kim 2016-04-15 329 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
608514deba38c86 Jaegeuk Kim 2016-04-15 330 {
1f227a3e215d361 Jaegeuk Kim 2017-10-23 331 if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(file)))))
1f227a3e215d361 Jaegeuk Kim 2017-10-23 332 return -EIO;
608514deba38c86 Jaegeuk Kim 2016-04-15 333 return f2fs_do_sync_file(file, start, end, datasync, false);
608514deba38c86 Jaegeuk Kim 2016-04-15 334 }
608514deba38c86 Jaegeuk Kim 2016-04-15 335
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 336 static pgoff_t __get_first_dirty_index(struct address_space *mapping,
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 337 pgoff_t pgofs, int whence)
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 338 {
8faab64229a5d5f Jan Kara 2017-11-15 339 struct page *page;
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 340 int nr_pages;
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 341
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 342 if (whence != SEEK_DATA)
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 343 return 0;
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 344
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 345 /* find first dirty page index */
8faab64229a5d5f Jan Kara 2017-11-15 346 nr_pages = find_get_pages_tag(mapping, &pgofs, PAGECACHE_TAG_DIRTY,
8faab64229a5d5f Jan Kara 2017-11-15 347 1, &page);
8faab64229a5d5f Jan Kara 2017-11-15 348 if (!nr_pages)
8faab64229a5d5f Jan Kara 2017-11-15 349 return ULONG_MAX;
8faab64229a5d5f Jan Kara 2017-11-15 350 pgofs = page->index;
8faab64229a5d5f Jan Kara 2017-11-15 351 put_page(page);
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 352 return pgofs;
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 353 }
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 354
e1da7872f6eda97 Chao Yu 2018-06-05 355 static bool __found_offset(struct f2fs_sb_info *sbi, block_t blkaddr,
e1da7872f6eda97 Chao Yu 2018-06-05 356 pgoff_t dirty, pgoff_t pgofs, int whence)
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 357 {
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 358 switch (whence) {
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 359 case SEEK_DATA:
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 360 if ((blkaddr == NEW_ADDR && dirty == pgofs) ||
93770ab7a6e9631 Chao Yu 2019-04-15 361 __is_valid_data_blkaddr(blkaddr))
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 362 return true;
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 363 break;
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 364 case SEEK_HOLE:
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 365 if (blkaddr == NULL_ADDR)
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 366 return true;
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 367 break;
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 368 }
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 369 return false;
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 370 }
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 371
267378d4de696d4 Chao Yu 2014-04-23 372 static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
267378d4de696d4 Chao Yu 2014-04-23 373 {
267378d4de696d4 Chao Yu 2014-04-23 374 struct inode *inode = file->f_mapping->host;
267378d4de696d4 Chao Yu 2014-04-23 375 loff_t maxbytes = inode->i_sb->s_maxbytes;
267378d4de696d4 Chao Yu 2014-04-23 376 struct dnode_of_data dn;
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 377 pgoff_t pgofs, end_offset, dirty;
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 378 loff_t data_ofs = offset;
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 379 loff_t isize;
267378d4de696d4 Chao Yu 2014-04-23 380 int err = 0;
267378d4de696d4 Chao Yu 2014-04-23 381
5955102c9984fa0 Al Viro 2016-01-22 382 inode_lock(inode);
267378d4de696d4 Chao Yu 2014-04-23 383
267378d4de696d4 Chao Yu 2014-04-23 384 isize = i_size_read(inode);
267378d4de696d4 Chao Yu 2014-04-23 385 if (offset >= isize)
267378d4de696d4 Chao Yu 2014-04-23 386 goto fail;
267378d4de696d4 Chao Yu 2014-04-23 387
267378d4de696d4 Chao Yu 2014-04-23 388 /* handle inline data case */
622f28ae9ba4fa8 Chao Yu 2014-09-24 389 if (f2fs_has_inline_data(inode) || f2fs_has_inline_dentry(inode)) {
267378d4de696d4 Chao Yu 2014-04-23 390 if (whence == SEEK_HOLE)
267378d4de696d4 Chao Yu 2014-04-23 391 data_ofs = isize;
267378d4de696d4 Chao Yu 2014-04-23 392 goto found;
267378d4de696d4 Chao Yu 2014-04-23 393 }
267378d4de696d4 Chao Yu 2014-04-23 394
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 395 pgofs = (pgoff_t)(offset >> PAGE_SHIFT);
267378d4de696d4 Chao Yu 2014-04-23 396
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 397 dirty = __get_first_dirty_index(inode->i_mapping, pgofs, whence);
7f7670fe9fe47e7 Jaegeuk Kim 2014-04-28 398
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 399 for (; data_ofs < isize; data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
267378d4de696d4 Chao Yu 2014-04-23 400 set_new_dnode(&dn, inode, NULL, NULL, 0);
4d57b86dd86404f Chao Yu 2018-05-30 401 err = f2fs_get_dnode_of_data(&dn, pgofs, LOOKUP_NODE);
267378d4de696d4 Chao Yu 2014-04-23 402 if (err && err != -ENOENT) {
267378d4de696d4 Chao Yu 2014-04-23 403 goto fail;
267378d4de696d4 Chao Yu 2014-04-23 404 } else if (err == -ENOENT) {
e1c42045203071c arter97 2014-08-06 405 /* direct node does not exists */
267378d4de696d4 Chao Yu 2014-04-23 406 if (whence == SEEK_DATA) {
4d57b86dd86404f Chao Yu 2018-05-30 407 pgofs = f2fs_get_next_page_offset(&dn, pgofs);
267378d4de696d4 Chao Yu 2014-04-23 408 continue;
267378d4de696d4 Chao Yu 2014-04-23 409 } else {
267378d4de696d4 Chao Yu 2014-04-23 410 goto found;
267378d4de696d4 Chao Yu 2014-04-23 411 }
267378d4de696d4 Chao Yu 2014-04-23 412 }
267378d4de696d4 Chao Yu 2014-04-23 413
81ca7350ce5ed43 Chao Yu 2016-01-26 414 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
267378d4de696d4 Chao Yu 2014-04-23 415
267378d4de696d4 Chao Yu 2014-04-23 416 /* find data/hole in dnode block */
267378d4de696d4 Chao Yu 2014-04-23 417 for (; dn.ofs_in_node < end_offset;
267378d4de696d4 Chao Yu 2014-04-23 418 dn.ofs_in_node++, pgofs++,
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 419 data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
267378d4de696d4 Chao Yu 2014-04-23 420 block_t blkaddr;
f11e98bdbe7d6ee youngjun yoo 2018-05-30 421
7a2af766af15887 Chao Yu 2017-07-19 422 blkaddr = datablock_addr(dn.inode,
7a2af766af15887 Chao Yu 2017-07-19 423 dn.node_page, dn.ofs_in_node);
267378d4de696d4 Chao Yu 2014-04-23 424
c9b60788fc760d1 Chao Yu 2018-08-01 425 if (__is_valid_data_blkaddr(blkaddr) &&
c9b60788fc760d1 Chao Yu 2018-08-01 426 !f2fs_is_valid_blkaddr(F2FS_I_SB(inode),
93770ab7a6e9631 Chao Yu 2019-04-15 427 blkaddr, DATA_GENERIC_ENHANCE)) {
c9b60788fc760d1 Chao Yu 2018-08-01 428 f2fs_put_dnode(&dn);
c9b60788fc760d1 Chao Yu 2018-08-01 429 goto fail;
c9b60788fc760d1 Chao Yu 2018-08-01 430 }
c9b60788fc760d1 Chao Yu 2018-08-01 431
e1da7872f6eda97 Chao Yu 2018-06-05 432 if (__found_offset(F2FS_I_SB(inode), blkaddr, dirty,
e1da7872f6eda97 Chao Yu 2018-06-05 433 pgofs, whence)) {
267378d4de696d4 Chao Yu 2014-04-23 434 f2fs_put_dnode(&dn);
267378d4de696d4 Chao Yu 2014-04-23 435 goto found;
267378d4de696d4 Chao Yu 2014-04-23 436 }
267378d4de696d4 Chao Yu 2014-04-23 437 }
267378d4de696d4 Chao Yu 2014-04-23 438 f2fs_put_dnode(&dn);
267378d4de696d4 Chao Yu 2014-04-23 439 }
267378d4de696d4 Chao Yu 2014-04-23 440
267378d4de696d4 Chao Yu 2014-04-23 441 if (whence == SEEK_DATA)
267378d4de696d4 Chao Yu 2014-04-23 442 goto fail;
267378d4de696d4 Chao Yu 2014-04-23 443 found:
fe369bc8ba20553 Jaegeuk Kim 2014-04-28 444 if (whence == SEEK_HOLE && data_ofs > isize)
fe369bc8ba20553 Jaegeuk Kim 2014-04-28 445 data_ofs = isize;
5955102c9984fa0 Al Viro 2016-01-22 446 inode_unlock(inode);
267378d4de696d4 Chao Yu 2014-04-23 447 return vfs_setpos(file, data_ofs, maxbytes);
267378d4de696d4 Chao Yu 2014-04-23 448 fail:
5955102c9984fa0 Al Viro 2016-01-22 449 inode_unlock(inode);
267378d4de696d4 Chao Yu 2014-04-23 450 return -ENXIO;
267378d4de696d4 Chao Yu 2014-04-23 451 }
267378d4de696d4 Chao Yu 2014-04-23 452
267378d4de696d4 Chao Yu 2014-04-23 453 static loff_t f2fs_llseek(struct file *file, loff_t offset, int whence)
267378d4de696d4 Chao Yu 2014-04-23 454 {
267378d4de696d4 Chao Yu 2014-04-23 455 struct inode *inode = file->f_mapping->host;
267378d4de696d4 Chao Yu 2014-04-23 456 loff_t maxbytes = inode->i_sb->s_maxbytes;
267378d4de696d4 Chao Yu 2014-04-23 457
267378d4de696d4 Chao Yu 2014-04-23 458 switch (whence) {
267378d4de696d4 Chao Yu 2014-04-23 459 case SEEK_SET:
267378d4de696d4 Chao Yu 2014-04-23 460 case SEEK_CUR:
267378d4de696d4 Chao Yu 2014-04-23 461 case SEEK_END:
267378d4de696d4 Chao Yu 2014-04-23 462 return generic_file_llseek_size(file, offset, whence,
267378d4de696d4 Chao Yu 2014-04-23 463 maxbytes, i_size_read(inode));
267378d4de696d4 Chao Yu 2014-04-23 464 case SEEK_DATA:
267378d4de696d4 Chao Yu 2014-04-23 465 case SEEK_HOLE:
0b4c5afde9b57c0 Jaegeuk Kim 2014-09-08 466 if (offset < 0)
0b4c5afde9b57c0 Jaegeuk Kim 2014-09-08 467 return -ENXIO;
267378d4de696d4 Chao Yu 2014-04-23 468 return f2fs_seek_block(file, offset, whence);
267378d4de696d4 Chao Yu 2014-04-23 469 }
267378d4de696d4 Chao Yu 2014-04-23 470
267378d4de696d4 Chao Yu 2014-04-23 471 return -EINVAL;
267378d4de696d4 Chao Yu 2014-04-23 472 }
267378d4de696d4 Chao Yu 2014-04-23 473
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 474 static int f2fs_file_mmap(struct file *file, struct vm_area_struct *vma)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 475 {
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 476 struct inode *inode = file_inode(file);
b9d777b85ff1ff7 Jaegeuk Kim 2015-12-22 477 int err;
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 478
1f227a3e215d361 Jaegeuk Kim 2017-10-23 479 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
1f227a3e215d361 Jaegeuk Kim 2017-10-23 480 return -EIO;
1f227a3e215d361 Jaegeuk Kim 2017-10-23 481
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 482 /* we don't need to use inline_data strictly */
b9d777b85ff1ff7 Jaegeuk Kim 2015-12-22 483 err = f2fs_convert_inline_inode(inode);
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 484 if (err)
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 485 return err;
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 486
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 487 file_accessed(file);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 488 vma->vm_ops = &f2fs_file_vm_ops;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 489 return 0;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 490 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 491
fcc85a4d86b5018 Jaegeuk Kim 2015-04-21 492 static int f2fs_file_open(struct inode *inode, struct file *filp)
fcc85a4d86b5018 Jaegeuk Kim 2015-04-21 493 {
2e168c82dc32e02 Eric Biggers 2017-11-29 494 int err = fscrypt_file_open(inode, filp);
fcc85a4d86b5018 Jaegeuk Kim 2015-04-21 495
2e168c82dc32e02 Eric Biggers 2017-11-29 496 if (err)
2e168c82dc32e02 Eric Biggers 2017-11-29 497 return err;
b91050a80cec3da Hyunchul Lee 2018-03-08 498
b91050a80cec3da Hyunchul Lee 2018-03-08 499 filp->f_mode |= FMODE_NOWAIT;
b91050a80cec3da Hyunchul Lee 2018-03-08 500
0abd675e97e60d4 Chao Yu 2017-07-09 501 return dquot_file_open(inode, filp);
fcc85a4d86b5018 Jaegeuk Kim 2015-04-21 502 }
fcc85a4d86b5018 Jaegeuk Kim 2015-04-21 503
4d57b86dd86404f Chao Yu 2018-05-30 504 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 505 {
4081363fbe84a7e Jaegeuk Kim 2014-09-02 506 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 507 struct f2fs_node *raw_node;
19b2c30d3cce928 Chao Yu 2015-08-26 508 int nr_free = 0, ofs = dn->ofs_in_node, len = count;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 509 __le32 *addr;
7a2af766af15887 Chao Yu 2017-07-19 510 int base = 0;
7a2af766af15887 Chao Yu 2017-07-19 511
7a2af766af15887 Chao Yu 2017-07-19 512 if (IS_INODE(dn->node_page) && f2fs_has_extra_attr(dn->inode))
7a2af766af15887 Chao Yu 2017-07-19 513 base = get_extra_isize(dn->inode);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 514
455907106327099 Gu Zheng 2013-07-15 515 raw_node = F2FS_NODE(dn->node_page);
7a2af766af15887 Chao Yu 2017-07-19 516 addr = blkaddr_in_node(raw_node) + base + ofs;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 517
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 518 for (; count > 0; count--, addr++, dn->ofs_in_node++) {
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 519 block_t blkaddr = le32_to_cpu(*addr);
f11e98bdbe7d6ee youngjun yoo 2018-05-30 520
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 521 if (blkaddr == NULL_ADDR)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 522 continue;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 523
e1509cf294cc670 Jaegeuk Kim 2014-12-30 524 dn->data_blkaddr = NULL_ADDR;
4d57b86dd86404f Chao Yu 2018-05-30 525 f2fs_set_data_blkaddr(dn);
c9b60788fc760d1 Chao Yu 2018-08-01 526
c9b60788fc760d1 Chao Yu 2018-08-01 527 if (__is_valid_data_blkaddr(blkaddr) &&
93770ab7a6e9631 Chao Yu 2019-04-15 528 !f2fs_is_valid_blkaddr(sbi, blkaddr,
93770ab7a6e9631 Chao Yu 2019-04-15 529 DATA_GENERIC_ENHANCE))
c9b60788fc760d1 Chao Yu 2018-08-01 530 continue;
c9b60788fc760d1 Chao Yu 2018-08-01 531
4d57b86dd86404f Chao Yu 2018-05-30 532 f2fs_invalidate_blocks(sbi, blkaddr);
3c6c2bebef79999 Jaegeuk Kim 2015-03-17 533 if (dn->ofs_in_node == 0 && IS_INODE(dn->node_page))
91942321e4c9f84 Jaegeuk Kim 2016-05-20 534 clear_inode_flag(dn->inode, FI_FIRST_BLOCK_WRITTEN);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 535 nr_free++;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 536 }
19b2c30d3cce928 Chao Yu 2015-08-26 537
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 538 if (nr_free) {
19b2c30d3cce928 Chao Yu 2015-08-26 539 pgoff_t fofs;
19b2c30d3cce928 Chao Yu 2015-08-26 540 /*
19b2c30d3cce928 Chao Yu 2015-08-26 541 * once we invalidate valid blkaddr in range [ofs, ofs + count],
19b2c30d3cce928 Chao Yu 2015-08-26 542 * we will invalidate all blkaddr in the whole range.
19b2c30d3cce928 Chao Yu 2015-08-26 543 */
4d57b86dd86404f Chao Yu 2018-05-30 544 fofs = f2fs_start_bidx_of_node(ofs_of_node(dn->node_page),
81ca7350ce5ed43 Chao Yu 2016-01-26 545 dn->inode) + ofs;
19b2c30d3cce928 Chao Yu 2015-08-26 546 f2fs_update_extent_cache_range(dn, fofs, 0, len);
d7cc950b4c910e4 Namjae Jeon 2013-06-08 547 dec_valid_block_count(sbi, dn->inode, nr_free);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 548 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 549 dn->ofs_in_node = ofs;
51dd62493477923 Namjae Jeon 2013-04-20 550
d0239e1bf5204d6 Jaegeuk Kim 2016-01-08 551 f2fs_update_time(sbi, REQ_TIME);
51dd62493477923 Namjae Jeon 2013-04-20 552 trace_f2fs_truncate_data_blocks_range(dn->inode, dn->nid,
51dd62493477923 Namjae Jeon 2013-04-20 553 dn->ofs_in_node, nr_free);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 554 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 555
4d57b86dd86404f Chao Yu 2018-05-30 556 void f2fs_truncate_data_blocks(struct dnode_of_data *dn)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 557 {
d02a6e6174a772f Chao Yu 2019-03-25 558 f2fs_truncate_data_blocks_range(dn, ADDRS_PER_BLOCK(dn->inode));
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 559 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 560
0bfcfcca3d4351f Chao Yu 2015-03-10 561 static int truncate_partial_data_page(struct inode *inode, u64 from,
43f3eae1d3b1de6 Jaegeuk Kim 2015-04-30 562 bool cache_only)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 563 {
193bea1dd8dadc4 youngjun yoo 2018-05-30 564 loff_t offset = from & (PAGE_SIZE - 1);
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 565 pgoff_t index = from >> PAGE_SHIFT;
43f3eae1d3b1de6 Jaegeuk Kim 2015-04-30 566 struct address_space *mapping = inode->i_mapping;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 567 struct page *page;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 568
43f3eae1d3b1de6 Jaegeuk Kim 2015-04-30 569 if (!offset && !cache_only)
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 570 return 0;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 571
43f3eae1d3b1de6 Jaegeuk Kim 2015-04-30 572 if (cache_only) {
34b5d5c22d64273 Jaegeuk Kim 2016-09-06 573 page = find_lock_page(mapping, index);
43f3eae1d3b1de6 Jaegeuk Kim 2015-04-30 574 if (page && PageUptodate(page))
43f3eae1d3b1de6 Jaegeuk Kim 2015-04-30 575 goto truncate_out;
43f3eae1d3b1de6 Jaegeuk Kim 2015-04-30 576 f2fs_put_page(page, 1);
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 577 return 0;
43f3eae1d3b1de6 Jaegeuk Kim 2015-04-30 578 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 579
4d57b86dd86404f Chao Yu 2018-05-30 580 page = f2fs_get_lock_data_page(inode, index, true);
43f3eae1d3b1de6 Jaegeuk Kim 2015-04-30 581 if (IS_ERR(page))
a78aaa2c3cf1e60 Yunlei He 2017-02-28 582 return PTR_ERR(page) == -ENOENT ? 0 : PTR_ERR(page);
43f3eae1d3b1de6 Jaegeuk Kim 2015-04-30 583 truncate_out:
bae0ee7a767ceee Chao Yu 2018-12-25 584 f2fs_wait_on_page_writeback(page, DATA, true, true);
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 585 zero_user(page, offset, PAGE_SIZE - offset);
a9bcf9bcd014990 Jaegeuk Kim 2017-06-14 586
a9bcf9bcd014990 Jaegeuk Kim 2017-06-14 587 /* An encrypted inode should have a key and truncate the last page. */
62230e0d702f613 Chandan Rajendra 2018-12-12 588 f2fs_bug_on(F2FS_I_SB(inode), cache_only && IS_ENCRYPTED(inode));
a9bcf9bcd014990 Jaegeuk Kim 2017-06-14 589 if (!cache_only)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 590 set_page_dirty(page);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 591 f2fs_put_page(page, 1);
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 592 return 0;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 593 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 594
c42d28ce3e16dbd Chao Yu 2019-02-02 595 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 596 {
4081363fbe84a7e Jaegeuk Kim 2014-09-02 597 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 598 struct dnode_of_data dn;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 599 pgoff_t free_from;
9ffe0fb5f3bbd01 Huajun Li 2013-11-10 600 int count = 0, err = 0;
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 601 struct page *ipage;
0bfcfcca3d4351f Chao Yu 2015-03-10 602 bool truncate_page = false;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 603
51dd62493477923 Namjae Jeon 2013-04-20 604 trace_f2fs_truncate_blocks_enter(inode, from);
51dd62493477923 Namjae Jeon 2013-04-20 605
df033caf51c01ed Chao Yu 2018-03-20 606 free_from = (pgoff_t)F2FS_BLK_ALIGN(from);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 607
09210c973af3032 Chao Yu 2016-05-05 608 if (free_from >= sbi->max_file_blocks)
09210c973af3032 Chao Yu 2016-05-05 609 goto free_partial;
09210c973af3032 Chao Yu 2016-05-05 610
764aa3e97802012 Jaegeuk Kim 2014-08-14 611 if (lock)
c42d28ce3e16dbd Chao Yu 2019-02-02 612 f2fs_lock_op(sbi);
9ffe0fb5f3bbd01 Huajun Li 2013-11-10 613
4d57b86dd86404f Chao Yu 2018-05-30 614 ipage = f2fs_get_node_page(sbi, inode->i_ino);
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 615 if (IS_ERR(ipage)) {
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 616 err = PTR_ERR(ipage);
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 617 goto out;
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 618 }
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 619
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 620 if (f2fs_has_inline_data(inode)) {
4d57b86dd86404f Chao Yu 2018-05-30 621 f2fs_truncate_inline_inode(inode, ipage, from);
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 622 f2fs_put_page(ipage, 1);
0bfcfcca3d4351f Chao Yu 2015-03-10 623 truncate_page = true;
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 624 goto out;
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 625 }
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 626
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 627 set_new_dnode(&dn, inode, ipage, NULL, 0);
4d57b86dd86404f Chao Yu 2018-05-30 628 err = f2fs_get_dnode_of_data(&dn, free_from, LOOKUP_NODE_RA);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 629 if (err) {
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 630 if (err == -ENOENT)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 631 goto free_next;
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 632 goto out;
1ce86bf6f882381 Jaegeuk Kim 2014-10-15 633 }
1ce86bf6f882381 Jaegeuk Kim 2014-10-15 634
81ca7350ce5ed43 Chao Yu 2016-01-26 635 count = ADDRS_PER_PAGE(dn.node_page, inode);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 636
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 637 count -= dn.ofs_in_node;
9850cf4a8908886 Jaegeuk Kim 2014-09-02 638 f2fs_bug_on(sbi, count < 0);
399368372ed9f3c Jaegeuk Kim 2012-11-22 639
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 640 if (dn.ofs_in_node || IS_INODE(dn.node_page)) {
4d57b86dd86404f Chao Yu 2018-05-30 641 f2fs_truncate_data_blocks_range(&dn, count);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 642 free_from += count;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 643 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 644
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 645 f2fs_put_dnode(&dn);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 646 free_next:
4d57b86dd86404f Chao Yu 2018-05-30 647 err = f2fs_truncate_inode_blocks(inode, free_from);
764d2c80401fcc7 Jaegeuk Kim 2014-11-11 648 out:
764d2c80401fcc7 Jaegeuk Kim 2014-11-11 649 if (lock)
c42d28ce3e16dbd Chao Yu 2019-02-02 650 f2fs_unlock_op(sbi);
09210c973af3032 Chao Yu 2016-05-05 651 free_partial:
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 652 /* lastly zero out the first data page */
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 653 if (!err)
0bfcfcca3d4351f Chao Yu 2015-03-10 654 err = truncate_partial_data_page(inode, from, truncate_page);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 655
51dd62493477923 Namjae Jeon 2013-04-20 656 trace_f2fs_truncate_blocks_exit(inode, err);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 657 return err;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 658 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 659
9a449e9c3b34ef3 Jaegeuk Kim 2016-06-02 660 int f2fs_truncate(struct inode *inode)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 661 {
b01548919c33767 Chao Yu 2015-08-24 662 int err;
b01548919c33767 Chao Yu 2015-08-24 663
1f227a3e215d361 Jaegeuk Kim 2017-10-23 664 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
1f227a3e215d361 Jaegeuk Kim 2017-10-23 665 return -EIO;
1f227a3e215d361 Jaegeuk Kim 2017-10-23 666
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 667 if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 668 S_ISLNK(inode->i_mode)))
b01548919c33767 Chao Yu 2015-08-24 669 return 0;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 670
51dd62493477923 Namjae Jeon 2013-04-20 671 trace_f2fs_truncate(inode);
51dd62493477923 Namjae Jeon 2013-04-20 672
14b44d238ce7402 Jaegeuk Kim 2017-03-09 673 if (time_to_inject(F2FS_I_SB(inode), FAULT_TRUNCATE)) {
14b44d238ce7402 Jaegeuk Kim 2017-03-09 674 f2fs_show_injection_info(FAULT_TRUNCATE);
14b44d238ce7402 Jaegeuk Kim 2017-03-09 675 return -EIO;
14b44d238ce7402 Jaegeuk Kim 2017-03-09 676 }
7fa750a163089cf Arnd Bergmann 2018-08-13 677
92dffd01790a521 Jaegeuk Kim 2014-11-11 678 /* we should check inline_data size */
b9d777b85ff1ff7 Jaegeuk Kim 2015-12-22 679 if (!f2fs_may_inline_data(inode)) {
b01548919c33767 Chao Yu 2015-08-24 680 err = f2fs_convert_inline_inode(inode);
b01548919c33767 Chao Yu 2015-08-24 681 if (err)
b01548919c33767 Chao Yu 2015-08-24 682 return err;
92dffd01790a521 Jaegeuk Kim 2014-11-11 683 }
92dffd01790a521 Jaegeuk Kim 2014-11-11 684
c42d28ce3e16dbd Chao Yu 2019-02-02 685 err = f2fs_truncate_blocks(inode, i_size_read(inode), true);
b01548919c33767 Chao Yu 2015-08-24 686 if (err)
b01548919c33767 Chao Yu 2015-08-24 687 return err;
b01548919c33767 Chao Yu 2015-08-24 688
078cd8279e65998 Deepa Dinamani 2016-09-14 689 inode->i_mtime = inode->i_ctime = current_time(inode);
7c45729a4d6d1c9 Jaegeuk Kim 2016-10-14 690 f2fs_mark_inode_dirty_sync(inode, false);
b01548919c33767 Chao Yu 2015-08-24 691 return 0;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 692 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 693
a528d35e8bfcc52 David Howells 2017-01-31 694 int f2fs_getattr(const struct path *path, struct kstat *stat,
1c6d8ee4b8aaadc Chao Yu 2017-05-03 695 u32 request_mask, unsigned int query_flags)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 696 {
a528d35e8bfcc52 David Howells 2017-01-31 697 struct inode *inode = d_inode(path->dentry);
1c6d8ee4b8aaadc Chao Yu 2017-05-03 698 struct f2fs_inode_info *fi = F2FS_I(inode);
1c1d35df71104c7 Chao Yu 2018-01-25 699 struct f2fs_inode *ri;
1c6d8ee4b8aaadc Chao Yu 2017-05-03 700 unsigned int flags;
1c6d8ee4b8aaadc Chao Yu 2017-05-03 701
1c1d35df71104c7 Chao Yu 2018-01-25 702 if (f2fs_has_extra_attr(inode) &&
7beb01f74415c56 Chao Yu 2018-10-24 703 f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) &&
1c1d35df71104c7 Chao Yu 2018-01-25 704 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) {
1c1d35df71104c7 Chao Yu 2018-01-25 705 stat->result_mask |= STATX_BTIME;
1c1d35df71104c7 Chao Yu 2018-01-25 706 stat->btime.tv_sec = fi->i_crtime.tv_sec;
1c1d35df71104c7 Chao Yu 2018-01-25 707 stat->btime.tv_nsec = fi->i_crtime.tv_nsec;
1c1d35df71104c7 Chao Yu 2018-01-25 708 }
1c1d35df71104c7 Chao Yu 2018-01-25 709
c807a7cb543b535 Chao Yu 2018-04-08 710 flags = fi->i_flags & F2FS_FL_USER_VISIBLE;
59c844088b19c54 Chao Yu 2018-04-03 711 if (flags & F2FS_APPEND_FL)
1c6d8ee4b8aaadc Chao Yu 2017-05-03 712 stat->attributes |= STATX_ATTR_APPEND;
59c844088b19c54 Chao Yu 2018-04-03 713 if (flags & F2FS_COMPR_FL)
1c6d8ee4b8aaadc Chao Yu 2017-05-03 714 stat->attributes |= STATX_ATTR_COMPRESSED;
62230e0d702f613 Chandan Rajendra 2018-12-12 715 if (IS_ENCRYPTED(inode))
1c6d8ee4b8aaadc Chao Yu 2017-05-03 716 stat->attributes |= STATX_ATTR_ENCRYPTED;
59c844088b19c54 Chao Yu 2018-04-03 717 if (flags & F2FS_IMMUTABLE_FL)
1c6d8ee4b8aaadc Chao Yu 2017-05-03 718 stat->attributes |= STATX_ATTR_IMMUTABLE;
59c844088b19c54 Chao Yu 2018-04-03 719 if (flags & F2FS_NODUMP_FL)
1c6d8ee4b8aaadc Chao Yu 2017-05-03 720 stat->attributes |= STATX_ATTR_NODUMP;
1c6d8ee4b8aaadc Chao Yu 2017-05-03 721
1c6d8ee4b8aaadc Chao Yu 2017-05-03 722 stat->attributes_mask |= (STATX_ATTR_APPEND |
1c6d8ee4b8aaadc Chao Yu 2017-05-03 723 STATX_ATTR_COMPRESSED |
1c6d8ee4b8aaadc Chao Yu 2017-05-03 724 STATX_ATTR_ENCRYPTED |
1c6d8ee4b8aaadc Chao Yu 2017-05-03 725 STATX_ATTR_IMMUTABLE |
1c6d8ee4b8aaadc Chao Yu 2017-05-03 726 STATX_ATTR_NODUMP);
1c6d8ee4b8aaadc Chao Yu 2017-05-03 727
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 728 generic_fillattr(inode, stat);
5b4267d195dd887 Jaegeuk Kim 2017-10-13 729
5b4267d195dd887 Jaegeuk Kim 2017-10-13 730 /* we need to show initial sectors used for inline_data/dentries */
5b4267d195dd887 Jaegeuk Kim 2017-10-13 731 if ((S_ISREG(inode->i_mode) && f2fs_has_inline_data(inode)) ||
5b4267d195dd887 Jaegeuk Kim 2017-10-13 732 f2fs_has_inline_dentry(inode))
5b4267d195dd887 Jaegeuk Kim 2017-10-13 733 stat->blocks += (stat->size + 511) >> 9;
5b4267d195dd887 Jaegeuk Kim 2017-10-13 734
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 735 return 0;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 736 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 737
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 738 #ifdef CONFIG_F2FS_FS_POSIX_ACL
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 739 static void __setattr_copy(struct inode *inode, const struct iattr *attr)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 740 {
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 741 unsigned int ia_valid = attr->ia_valid;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 742
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 743 if (ia_valid & ATTR_UID)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 744 inode->i_uid = attr->ia_uid;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 745 if (ia_valid & ATTR_GID)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 746 inode->i_gid = attr->ia_gid;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 747 if (ia_valid & ATTR_ATIME)
95582b00838837f Deepa Dinamani 2018-05-08 748 inode->i_atime = timespec64_trunc(attr->ia_atime,
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 749 inode->i_sb->s_time_gran);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 750 if (ia_valid & ATTR_MTIME)
95582b00838837f Deepa Dinamani 2018-05-08 751 inode->i_mtime = timespec64_trunc(attr->ia_mtime,
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 752 inode->i_sb->s_time_gran);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 753 if (ia_valid & ATTR_CTIME)
95582b00838837f Deepa Dinamani 2018-05-08 754 inode->i_ctime = timespec64_trunc(attr->ia_ctime,
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 755 inode->i_sb->s_time_gran);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 756 if (ia_valid & ATTR_MODE) {
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 757 umode_t mode = attr->ia_mode;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 758
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 759 if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 760 mode &= ~S_ISGID;
91942321e4c9f84 Jaegeuk Kim 2016-05-20 761 set_acl_inode(inode, mode);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 762 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 763 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 764 #else
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 765 #define __setattr_copy setattr_copy
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 766 #endif
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 767
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 768 int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 769 {
2b0143b5c986be1 David Howells 2015-03-17 770 struct inode *inode = d_inode(dentry);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 771 int err;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 772
1f227a3e215d361 Jaegeuk Kim 2017-10-23 773 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
1f227a3e215d361 Jaegeuk Kim 2017-10-23 774 return -EIO;
1f227a3e215d361 Jaegeuk Kim 2017-10-23 775
31051c85b5e2aaa Jan Kara 2016-05-26 776 err = setattr_prepare(dentry, attr);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 777 if (err)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 778 return err;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 779
20bb2479be49296 Eric Biggers 2017-11-29 780 err = fscrypt_prepare_setattr(dentry, attr);
20bb2479be49296 Eric Biggers 2017-11-29 781 if (err)
20bb2479be49296 Eric Biggers 2017-11-29 782 return err;
20bb2479be49296 Eric Biggers 2017-11-29 783
0abd675e97e60d4 Chao Yu 2017-07-09 784 if (is_quota_modification(inode, attr)) {
0abd675e97e60d4 Chao Yu 2017-07-09 785 err = dquot_initialize(inode);
0abd675e97e60d4 Chao Yu 2017-07-09 786 if (err)
0abd675e97e60d4 Chao Yu 2017-07-09 787 return err;
0abd675e97e60d4 Chao Yu 2017-07-09 788 }
0abd675e97e60d4 Chao Yu 2017-07-09 789 if ((attr->ia_valid & ATTR_UID &&
0abd675e97e60d4 Chao Yu 2017-07-09 790 !uid_eq(attr->ia_uid, inode->i_uid)) ||
0abd675e97e60d4 Chao Yu 2017-07-09 791 (attr->ia_valid & ATTR_GID &&
0abd675e97e60d4 Chao Yu 2017-07-09 792 !gid_eq(attr->ia_gid, inode->i_gid))) {
af033b2aa8a874f Chao Yu 2018-09-20 793 f2fs_lock_op(F2FS_I_SB(inode));
0abd675e97e60d4 Chao Yu 2017-07-09 794 err = dquot_transfer(inode, attr);
af033b2aa8a874f Chao Yu 2018-09-20 795 if (err) {
af033b2aa8a874f Chao Yu 2018-09-20 796 set_sbi_flag(F2FS_I_SB(inode),
af033b2aa8a874f Chao Yu 2018-09-20 797 SBI_QUOTA_NEED_REPAIR);
af033b2aa8a874f Chao Yu 2018-09-20 798 f2fs_unlock_op(F2FS_I_SB(inode));
0abd675e97e60d4 Chao Yu 2017-07-09 799 return err;
0abd675e97e60d4 Chao Yu 2017-07-09 800 }
af033b2aa8a874f Chao Yu 2018-09-20 801 /*
af033b2aa8a874f Chao Yu 2018-09-20 802 * update uid/gid under lock_op(), so that dquot and inode can
af033b2aa8a874f Chao Yu 2018-09-20 803 * be updated atomically.
af033b2aa8a874f Chao Yu 2018-09-20 804 */
af033b2aa8a874f Chao Yu 2018-09-20 805 if (attr->ia_valid & ATTR_UID)
af033b2aa8a874f Chao Yu 2018-09-20 806 inode->i_uid = attr->ia_uid;
af033b2aa8a874f Chao Yu 2018-09-20 807 if (attr->ia_valid & ATTR_GID)
af033b2aa8a874f Chao Yu 2018-09-20 808 inode->i_gid = attr->ia_gid;
af033b2aa8a874f Chao Yu 2018-09-20 809 f2fs_mark_inode_dirty_sync(inode, true);
af033b2aa8a874f Chao Yu 2018-09-20 810 f2fs_unlock_op(F2FS_I_SB(inode));
af033b2aa8a874f Chao Yu 2018-09-20 811 }
0abd675e97e60d4 Chao Yu 2017-07-09 812
09db6a2ef8d9ca6 Chao Yu 2014-09-15 813 if (attr->ia_valid & ATTR_SIZE) {
a33c150237a20d9 Chao Yu 2018-08-05 814 bool to_smaller = (attr->ia_size <= i_size_read(inode));
a33c150237a20d9 Chao Yu 2018-08-05 815
a33c150237a20d9 Chao Yu 2018-08-05 816 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 817 down_write(&F2FS_I(inode)->i_mmap_sem);
a33c150237a20d9 Chao Yu 2018-08-05 818
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 819 truncate_setsize(inode, attr->ia_size);
a33c150237a20d9 Chao Yu 2018-08-05 820
a33c150237a20d9 Chao Yu 2018-08-05 821 if (to_smaller)
9a449e9c3b34ef3 Jaegeuk Kim 2016-06-02 822 err = f2fs_truncate(inode);
09db6a2ef8d9ca6 Chao Yu 2014-09-15 823 /*
3c4541452748754 Chao Yu 2015-06-05 824 * do not trim all blocks after i_size if target size is
3c4541452748754 Chao Yu 2015-06-05 825 * larger than i_size.
09db6a2ef8d9ca6 Chao Yu 2014-09-15 826 */
5a3a2d83cda82df Qiuyang Sun 2017-05-18 827 up_write(&F2FS_I(inode)->i_mmap_sem);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 828 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
0cab80ee0c9e173 Chao Yu 2015-12-01 829
a33c150237a20d9 Chao Yu 2018-08-05 830 if (err)
a33c150237a20d9 Chao Yu 2018-08-05 831 return err;
a33c150237a20d9 Chao Yu 2018-08-05 832
a33c150237a20d9 Chao Yu 2018-08-05 833 if (!to_smaller) {
0cab80ee0c9e173 Chao Yu 2015-12-01 834 /* should convert inline inode here */
b9d777b85ff1ff7 Jaegeuk Kim 2015-12-22 835 if (!f2fs_may_inline_data(inode)) {
0cab80ee0c9e173 Chao Yu 2015-12-01 836 err = f2fs_convert_inline_inode(inode);
0cab80ee0c9e173 Chao Yu 2015-12-01 837 if (err)
0cab80ee0c9e173 Chao Yu 2015-12-01 838 return err;
0cab80ee0c9e173 Chao Yu 2015-12-01 839 }
078cd8279e65998 Deepa Dinamani 2016-09-14 840 inode->i_mtime = inode->i_ctime = current_time(inode);
09db6a2ef8d9ca6 Chao Yu 2014-09-15 841 }
c0ed4405a99ec9b Yunlei He 2016-12-11 842
a0d00fad353d4a3 Chao Yu 2017-10-09 843 down_write(&F2FS_I(inode)->i_sem);
a0d00fad353d4a3 Chao Yu 2017-10-09 844 F2FS_I(inode)->last_disk_size = i_size_read(inode);
a0d00fad353d4a3 Chao Yu 2017-10-09 845 up_write(&F2FS_I(inode)->i_sem);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 846 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 847
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 848 __setattr_copy(inode, attr);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 849
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 850 if (attr->ia_valid & ATTR_MODE) {
4d57b86dd86404f Chao Yu 2018-05-30 851 err = posix_acl_chmod(inode, f2fs_get_inode_mode(inode));
91942321e4c9f84 Jaegeuk Kim 2016-05-20 852 if (err || is_inode_flag_set(inode, FI_ACL_MODE)) {
91942321e4c9f84 Jaegeuk Kim 2016-05-20 853 inode->i_mode = F2FS_I(inode)->i_acl_mode;
91942321e4c9f84 Jaegeuk Kim 2016-05-20 854 clear_inode_flag(inode, FI_ACL_MODE);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 855 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 856 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 857
c0ed4405a99ec9b Yunlei He 2016-12-11 858 /* file size may changed here */
ca597bddedd9490 Chao Yu 2019-02-23 859 f2fs_mark_inode_dirty_sync(inode, true);
15d04354555fdfe Jaegeuk Kim 2016-10-14 860
15d04354555fdfe Jaegeuk Kim 2016-10-14 861 /* inode change will produce dirty node pages flushed by checkpoint */
15d04354555fdfe Jaegeuk Kim 2016-10-14 862 f2fs_balance_fs(F2FS_I_SB(inode), true);
15d04354555fdfe Jaegeuk Kim 2016-10-14 863
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 864 return err;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 865 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 866
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 867 const struct inode_operations f2fs_file_inode_operations = {
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 868 .getattr = f2fs_getattr,
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 869 .setattr = f2fs_setattr,
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 870 .get_acl = f2fs_get_acl,
a6dda0e63e97122 Christoph Hellwig 2013-12-20 871 .set_acl = f2fs_set_acl,
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 872 #ifdef CONFIG_F2FS_FS_XATTR
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 873 .listxattr = f2fs_listxattr,
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 874 #endif
9ab701349247368 Jaegeuk Kim 2014-06-08 875 .fiemap = f2fs_fiemap,
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 876 };
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 877
6394328ab8a2ab6 Chao Yu 2015-08-07 878 static int fill_zero(struct inode *inode, pgoff_t index,
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 879 loff_t start, loff_t len)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 880 {
4081363fbe84a7e Jaegeuk Kim 2014-09-02 881 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 882 struct page *page;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 883
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 884 if (!len)
6394328ab8a2ab6 Chao Yu 2015-08-07 885 return 0;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 886
2c4db1a6f6b42e2 Jaegeuk Kim 2016-01-07 887 f2fs_balance_fs(sbi, true);
bd43df021ac3724 Jaegeuk Kim 2013-01-25 888
e479556bfdd1366 Gu Zheng 2013-09-27 889 f2fs_lock_op(sbi);
4d57b86dd86404f Chao Yu 2018-05-30 890 page = f2fs_get_new_data_page(inode, NULL, index, false);
e479556bfdd1366 Gu Zheng 2013-09-27 891 f2fs_unlock_op(sbi);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 892
6394328ab8a2ab6 Chao Yu 2015-08-07 893 if (IS_ERR(page))
6394328ab8a2ab6 Chao Yu 2015-08-07 894 return PTR_ERR(page);
6394328ab8a2ab6 Chao Yu 2015-08-07 895
bae0ee7a767ceee Chao Yu 2018-12-25 896 f2fs_wait_on_page_writeback(page, DATA, true, true);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 897 zero_user(page, start, len);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 898 set_page_dirty(page);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 899 f2fs_put_page(page, 1);
6394328ab8a2ab6 Chao Yu 2015-08-07 900 return 0;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 901 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 902
4d57b86dd86404f Chao Yu 2018-05-30 903 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 904 {
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 905 int err;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 906
ea58711e884c300 Chao Yu 2015-09-17 907 while (pg_start < pg_end) {
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 908 struct dnode_of_data dn;
ea58711e884c300 Chao Yu 2015-09-17 909 pgoff_t end_offset, count;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 910
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 911 set_new_dnode(&dn, inode, NULL, NULL, 0);
4d57b86dd86404f Chao Yu 2018-05-30 912 err = f2fs_get_dnode_of_data(&dn, pg_start, LOOKUP_NODE);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 913 if (err) {
ea58711e884c300 Chao Yu 2015-09-17 914 if (err == -ENOENT) {
4d57b86dd86404f Chao Yu 2018-05-30 915 pg_start = f2fs_get_next_page_offset(&dn,
4d57b86dd86404f Chao Yu 2018-05-30 916 pg_start);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 917 continue;
ea58711e884c300 Chao Yu 2015-09-17 918 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 919 return err;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 920 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 921
81ca7350ce5ed43 Chao Yu 2016-01-26 922 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
ea58711e884c300 Chao Yu 2015-09-17 923 count = min(end_offset - dn.ofs_in_node, pg_end - pg_start);
ea58711e884c300 Chao Yu 2015-09-17 924
ea58711e884c300 Chao Yu 2015-09-17 925 f2fs_bug_on(F2FS_I_SB(inode), count == 0 || count > end_offset);
ea58711e884c300 Chao Yu 2015-09-17 926
4d57b86dd86404f Chao Yu 2018-05-30 927 f2fs_truncate_data_blocks_range(&dn, count);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 928 f2fs_put_dnode(&dn);
ea58711e884c300 Chao Yu 2015-09-17 929
ea58711e884c300 Chao Yu 2015-09-17 930 pg_start += count;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 931 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 932 return 0;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 933 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 934
a66c7b2fcfbc9ef Chao Yu 2013-11-22 935 static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 936 {
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 937 pgoff_t pg_start, pg_end;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 938 loff_t off_start, off_end;
b9d777b85ff1ff7 Jaegeuk Kim 2015-12-22 939 int ret;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 940
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 941 ret = f2fs_convert_inline_inode(inode);
9ffe0fb5f3bbd01 Huajun Li 2013-11-10 942 if (ret)
9ffe0fb5f3bbd01 Huajun Li 2013-11-10 943 return ret;
9ffe0fb5f3bbd01 Huajun Li 2013-11-10 944
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 945 pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 946 pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 947
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 948 off_start = offset & (PAGE_SIZE - 1);
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 949 off_end = (offset + len) & (PAGE_SIZE - 1);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 950
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 951 if (pg_start == pg_end) {
6394328ab8a2ab6 Chao Yu 2015-08-07 952 ret = fill_zero(inode, pg_start, off_start,
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 953 off_end - off_start);
6394328ab8a2ab6 Chao Yu 2015-08-07 954 if (ret)
6394328ab8a2ab6 Chao Yu 2015-08-07 955 return ret;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 956 } else {
6394328ab8a2ab6 Chao Yu 2015-08-07 957 if (off_start) {
6394328ab8a2ab6 Chao Yu 2015-08-07 958 ret = fill_zero(inode, pg_start++, off_start,
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 959 PAGE_SIZE - off_start);
6394328ab8a2ab6 Chao Yu 2015-08-07 960 if (ret)
6394328ab8a2ab6 Chao Yu 2015-08-07 961 return ret;
6394328ab8a2ab6 Chao Yu 2015-08-07 962 }
6394328ab8a2ab6 Chao Yu 2015-08-07 963 if (off_end) {
6394328ab8a2ab6 Chao Yu 2015-08-07 964 ret = fill_zero(inode, pg_end, 0, off_end);
6394328ab8a2ab6 Chao Yu 2015-08-07 965 if (ret)
6394328ab8a2ab6 Chao Yu 2015-08-07 966 return ret;
6394328ab8a2ab6 Chao Yu 2015-08-07 967 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 968
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 969 if (pg_start < pg_end) {
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 970 struct address_space *mapping = inode->i_mapping;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 971 loff_t blk_start, blk_end;
4081363fbe84a7e Jaegeuk Kim 2014-09-02 972 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1127a3d448bcf4d Jason Hrycay 2013-04-08 973
2c4db1a6f6b42e2 Jaegeuk Kim 2016-01-07 974 f2fs_balance_fs(sbi, true);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 975
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 976 blk_start = (loff_t)pg_start << PAGE_SHIFT;
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 977 blk_end = (loff_t)pg_end << PAGE_SHIFT;
a33c150237a20d9 Chao Yu 2018-08-05 978
a33c150237a20d9 Chao Yu 2018-08-05 979 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 980 down_write(&F2FS_I(inode)->i_mmap_sem);
a33c150237a20d9 Chao Yu 2018-08-05 981
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 982 truncate_inode_pages_range(mapping, blk_start,
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 983 blk_end - 1);
399368372ed9f3c Jaegeuk Kim 2012-11-22 984
e479556bfdd1366 Gu Zheng 2013-09-27 985 f2fs_lock_op(sbi);
4d57b86dd86404f Chao Yu 2018-05-30 986 ret = f2fs_truncate_hole(inode, pg_start, pg_end);
e479556bfdd1366 Gu Zheng 2013-09-27 987 f2fs_unlock_op(sbi);
a33c150237a20d9 Chao Yu 2018-08-05 988
5a3a2d83cda82df Qiuyang Sun 2017-05-18 989 up_write(&F2FS_I(inode)->i_mmap_sem);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 990 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 991 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 992 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 993
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 994 return ret;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 995 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 996
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 997 static int __read_out_blkaddrs(struct inode *inode, block_t *blkaddr,
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 998 int *do_replace, pgoff_t off, pgoff_t len)
b4ace33703243fe Chao Yu 2015-05-06 999 {
b4ace33703243fe Chao Yu 2015-05-06 1000 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
b4ace33703243fe Chao Yu 2015-05-06 1001 struct dnode_of_data dn;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1002 int ret, done, i;
ecbaa4068f88f96 Chao Yu 2015-07-16 1003
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1004 next_dnode:
b4ace33703243fe Chao Yu 2015-05-06 1005 set_new_dnode(&dn, inode, NULL, NULL, 0);
4d57b86dd86404f Chao Yu 2018-05-30 1006 ret = f2fs_get_dnode_of_data(&dn, off, LOOKUP_NODE_RA);
b4ace33703243fe Chao Yu 2015-05-06 1007 if (ret && ret != -ENOENT) {
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1008 return ret;
b4ace33703243fe Chao Yu 2015-05-06 1009 } else if (ret == -ENOENT) {
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1010 if (dn.max_level == 0)
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1011 return -ENOENT;
d02a6e6174a772f Chao Yu 2019-03-25 1012 done = min((pgoff_t)ADDRS_PER_BLOCK(inode) - dn.ofs_in_node,
d02a6e6174a772f Chao Yu 2019-03-25 1013 len);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1014 blkaddr += done;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1015 do_replace += done;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1016 goto next;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1017 }
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1018
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1019 done = min((pgoff_t)ADDRS_PER_PAGE(dn.node_page, inode) -
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1020 dn.ofs_in_node, len);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1021 for (i = 0; i < done; i++, blkaddr++, do_replace++, dn.ofs_in_node++) {
7a2af766af15887 Chao Yu 2017-07-19 1022 *blkaddr = datablock_addr(dn.inode,
7a2af766af15887 Chao Yu 2017-07-19 1023 dn.node_page, dn.ofs_in_node);
93770ab7a6e9631 Chao Yu 2019-04-15 1024
93770ab7a6e9631 Chao Yu 2019-04-15 1025 if (__is_valid_data_blkaddr(*blkaddr) &&
93770ab7a6e9631 Chao Yu 2019-04-15 1026 !f2fs_is_valid_blkaddr(sbi, *blkaddr,
93770ab7a6e9631 Chao Yu 2019-04-15 1027 DATA_GENERIC_ENHANCE)) {
93770ab7a6e9631 Chao Yu 2019-04-15 1028 f2fs_put_dnode(&dn);
93770ab7a6e9631 Chao Yu 2019-04-15 1029 return -EFAULT;
93770ab7a6e9631 Chao Yu 2019-04-15 1030 }
93770ab7a6e9631 Chao Yu 2019-04-15 1031
4d57b86dd86404f Chao Yu 2018-05-30 1032 if (!f2fs_is_checkpointed_data(sbi, *blkaddr)) {
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1033
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1034 if (test_opt(sbi, LFS)) {
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1035 f2fs_put_dnode(&dn);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1036 return -ENOTSUPP;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1037 }
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1038
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1039 /* do not invalidate this block address */
f28b3434afb8bb5 Chao Yu 2016-02-24 1040 f2fs_update_data_blkaddr(&dn, NULL_ADDR);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1041 *do_replace = 1;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1042 }
ecbaa4068f88f96 Chao Yu 2015-07-16 1043 }
b4ace33703243fe Chao Yu 2015-05-06 1044 f2fs_put_dnode(&dn);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1045 next:
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1046 len -= done;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1047 off += done;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1048 if (len)
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1049 goto next_dnode;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1050 return 0;
b4ace33703243fe Chao Yu 2015-05-06 1051 }
b4ace33703243fe Chao Yu 2015-05-06 1052
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1053 static int __roll_back_blkaddrs(struct inode *inode, block_t *blkaddr,
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1054 int *do_replace, pgoff_t off, int len)
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1055 {
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1056 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1057 struct dnode_of_data dn;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1058 int ret, i;
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1059
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1060 for (i = 0; i < len; i++, do_replace++, blkaddr++) {
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1061 if (*do_replace == 0)
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1062 continue;
b4ace33703243fe Chao Yu 2015-05-06 1063
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1064 set_new_dnode(&dn, inode, NULL, NULL, 0);
4d57b86dd86404f Chao Yu 2018-05-30 1065 ret = f2fs_get_dnode_of_data(&dn, off + i, LOOKUP_NODE_RA);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1066 if (ret) {
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1067 dec_valid_block_count(sbi, inode, 1);
4d57b86dd86404f Chao Yu 2018-05-30 1068 f2fs_invalidate_blocks(sbi, *blkaddr);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1069 } else {
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1070 f2fs_update_data_blkaddr(&dn, *blkaddr);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1071 }
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1072 f2fs_put_dnode(&dn);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1073 }
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1074 return 0;
36abef4e796d382 Jaegeuk Kim 2016-06-03 1075 }
36abef4e796d382 Jaegeuk Kim 2016-06-03 1076
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1077 static int __clone_blkaddrs(struct inode *src_inode, struct inode *dst_inode,
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1078 block_t *blkaddr, int *do_replace,
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1079 pgoff_t src, pgoff_t dst, pgoff_t len, bool full)
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1080 {
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1081 struct f2fs_sb_info *sbi = F2FS_I_SB(src_inode);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1082 pgoff_t i = 0;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1083 int ret;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1084
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1085 while (i < len) {
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1086 if (blkaddr[i] == NULL_ADDR && !full) {
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1087 i++;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1088 continue;
b4ace33703243fe Chao Yu 2015-05-06 1089 }
b4ace33703243fe Chao Yu 2015-05-06 1090
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1091 if (do_replace[i] || blkaddr[i] == NULL_ADDR) {
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1092 struct dnode_of_data dn;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1093 struct node_info ni;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1094 size_t new_size;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1095 pgoff_t ilen;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1096
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1097 set_new_dnode(&dn, dst_inode, NULL, NULL, 0);
4d57b86dd86404f Chao Yu 2018-05-30 1098 ret = f2fs_get_dnode_of_data(&dn, dst + i, ALLOC_NODE);
b4ace33703243fe Chao Yu 2015-05-06 1099 if (ret)
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1100 return ret;
b4ace33703243fe Chao Yu 2015-05-06 1101
7735730d39d75e7 Chao Yu 2018-07-17 1102 ret = f2fs_get_node_info(sbi, dn.nid, &ni);
7735730d39d75e7 Chao Yu 2018-07-17 1103 if (ret) {
7735730d39d75e7 Chao Yu 2018-07-17 1104 f2fs_put_dnode(&dn);
7735730d39d75e7 Chao Yu 2018-07-17 1105 return ret;
7735730d39d75e7 Chao Yu 2018-07-17 1106 }
7735730d39d75e7 Chao Yu 2018-07-17 1107
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1108 ilen = min((pgoff_t)
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1109 ADDRS_PER_PAGE(dn.node_page, dst_inode) -
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1110 dn.ofs_in_node, len - i);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1111 do {
7a2af766af15887 Chao Yu 2017-07-19 1112 dn.data_blkaddr = datablock_addr(dn.inode,
7a2af766af15887 Chao Yu 2017-07-19 1113 dn.node_page, dn.ofs_in_node);
4d57b86dd86404f Chao Yu 2018-05-30 1114 f2fs_truncate_data_blocks_range(&dn, 1);
b4ace33703243fe Chao Yu 2015-05-06 1115
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1116 if (do_replace[i]) {
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1117 f2fs_i_blocks_write(src_inode,
0abd675e97e60d4 Chao Yu 2017-07-09 1118 1, false, false);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1119 f2fs_i_blocks_write(dst_inode,
0abd675e97e60d4 Chao Yu 2017-07-09 1120 1, true, false);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1121 f2fs_replace_block(sbi, &dn, dn.data_blkaddr,
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1122 blkaddr[i], ni.version, true, false);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1123
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1124 do_replace[i] = 0;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1125 }
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1126 dn.ofs_in_node++;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1127 i++;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1128 new_size = (dst + i) << PAGE_SHIFT;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1129 if (dst_inode->i_size < new_size)
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1130 f2fs_i_size_write(dst_inode, new_size);
e87f7329bbd6760 Jaegeuk Kim 2016-11-23 1131 } while (--ilen && (do_replace[i] || blkaddr[i] == NULL_ADDR));
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1132
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1133 f2fs_put_dnode(&dn);
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1134 } else {
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1135 struct page *psrc, *pdst;
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1136
4d57b86dd86404f Chao Yu 2018-05-30 1137 psrc = f2fs_get_lock_data_page(src_inode,
4d57b86dd86404f Chao Yu 2018-05-30 1138 src + i, true);
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1139 if (IS_ERR(psrc))
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1140 return PTR_ERR(psrc);
4d57b86dd86404f Chao Yu 2018-05-30 1141 pdst = f2fs_get_new_data_page(dst_inode, NULL, dst + i,
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1142 true);
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1143 if (IS_ERR(pdst)) {
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1144 f2fs_put_page(psrc, 1);
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1145 return PTR_ERR(pdst);
b4ace33703243fe Chao Yu 2015-05-06 1146 }
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1147 f2fs_copy_page(psrc, pdst);
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1148 set_page_dirty(pdst);
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1149 f2fs_put_page(pdst, 1);
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1150 f2fs_put_page(psrc, 1);
b4ace33703243fe Chao Yu 2015-05-06 1151
4d57b86dd86404f Chao Yu 2018-05-30 1152 ret = f2fs_truncate_hole(src_inode,
4d57b86dd86404f Chao Yu 2018-05-30 1153 src + i, src + i + 1);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1154 if (ret)
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1155 return ret;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1156 i++;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1157 }
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1158 }
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1159 return 0;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1160 }
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1161
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1162 static int __exchange_data_block(struct inode *src_inode,
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1163 struct inode *dst_inode, pgoff_t src, pgoff_t dst,
363cad7f7e586b3 Jaegeuk Kim 2016-07-16 1164 pgoff_t len, bool full)
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1165 {
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1166 block_t *src_blkaddr;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1167 int *do_replace;
363cad7f7e586b3 Jaegeuk Kim 2016-07-16 1168 pgoff_t olen;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1169 int ret;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1170
363cad7f7e586b3 Jaegeuk Kim 2016-07-16 1171 while (len) {
d02a6e6174a772f Chao Yu 2019-03-25 1172 olen = min((pgoff_t)4 * ADDRS_PER_BLOCK(src_inode), len);
363cad7f7e586b3 Jaegeuk Kim 2016-07-16 1173
628b3d1438fbcb1 Chao Yu 2017-11-30 1174 src_blkaddr = f2fs_kvzalloc(F2FS_I_SB(src_inode),
9d2a789c1db75d0 Kees Cook 2018-06-12 1175 array_size(olen, sizeof(block_t)),
9d2a789c1db75d0 Kees Cook 2018-06-12 1176 GFP_KERNEL);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1177 if (!src_blkaddr)
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1178 return -ENOMEM;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1179
628b3d1438fbcb1 Chao Yu 2017-11-30 1180 do_replace = f2fs_kvzalloc(F2FS_I_SB(src_inode),
9d2a789c1db75d0 Kees Cook 2018-06-12 1181 array_size(olen, sizeof(int)),
9d2a789c1db75d0 Kees Cook 2018-06-12 1182 GFP_KERNEL);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1183 if (!do_replace) {
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1184 kvfree(src_blkaddr);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1185 return -ENOMEM;
b4ace33703243fe Chao Yu 2015-05-06 1186 }
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1187
363cad7f7e586b3 Jaegeuk Kim 2016-07-16 1188 ret = __read_out_blkaddrs(src_inode, src_blkaddr,
363cad7f7e586b3 Jaegeuk Kim 2016-07-16 1189 do_replace, src, olen);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1190 if (ret)
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1191 goto roll_back;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1192
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1193 ret = __clone_blkaddrs(src_inode, dst_inode, src_blkaddr,
363cad7f7e586b3 Jaegeuk Kim 2016-07-16 1194 do_replace, src, dst, olen, full);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1195 if (ret)
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1196 goto roll_back;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1197
363cad7f7e586b3 Jaegeuk Kim 2016-07-16 1198 src += olen;
363cad7f7e586b3 Jaegeuk Kim 2016-07-16 1199 dst += olen;
363cad7f7e586b3 Jaegeuk Kim 2016-07-16 1200 len -= olen;
363cad7f7e586b3 Jaegeuk Kim 2016-07-16 1201
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1202 kvfree(src_blkaddr);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1203 kvfree(do_replace);
363cad7f7e586b3 Jaegeuk Kim 2016-07-16 1204 }
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1205 return 0;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1206
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1207 roll_back:
9fd62605bba9a8c Chao Yu 2018-05-28 1208 __roll_back_blkaddrs(src_inode, src_blkaddr, do_replace, src, olen);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1209 kvfree(src_blkaddr);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1210 kvfree(do_replace);
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1211 return ret;
b4ace33703243fe Chao Yu 2015-05-06 1212 }
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1213
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1214 static int f2fs_do_collapse(struct inode *inode, loff_t offset, loff_t len)
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1215 {
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1216 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1217 pgoff_t nrpages = (i_size_read(inode) + PAGE_SIZE - 1) / PAGE_SIZE;
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1218 pgoff_t start = offset >> PAGE_SHIFT;
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1219 pgoff_t end = (offset + len) >> PAGE_SHIFT;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1220 int ret;
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1221
2c4db1a6f6b42e2 Jaegeuk Kim 2016-01-07 1222 f2fs_balance_fs(sbi, true);
5f281fab9b9a300 Jaegeuk Kim 2016-07-12 1223
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1224 /* avoid gc operation during block exchange */
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1225 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1226 down_write(&F2FS_I(inode)->i_mmap_sem);
5f281fab9b9a300 Jaegeuk Kim 2016-07-12 1227
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1228 f2fs_lock_op(sbi);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1229 f2fs_drop_extent_tree(inode);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1230 truncate_pagecache(inode, offset);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1231 ret = __exchange_data_block(inode, inode, end, start, nrpages - end, true);
b4ace33703243fe Chao Yu 2015-05-06 1232 f2fs_unlock_op(sbi);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1233
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1234 up_write(&F2FS_I(inode)->i_mmap_sem);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1235 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
b4ace33703243fe Chao Yu 2015-05-06 1236 return ret;
b4ace33703243fe Chao Yu 2015-05-06 1237 }
b4ace33703243fe Chao Yu 2015-05-06 1238
b4ace33703243fe Chao Yu 2015-05-06 1239 static int f2fs_collapse_range(struct inode *inode, loff_t offset, loff_t len)
b4ace33703243fe Chao Yu 2015-05-06 1240 {
b4ace33703243fe Chao Yu 2015-05-06 1241 loff_t new_size;
b4ace33703243fe Chao Yu 2015-05-06 1242 int ret;
b4ace33703243fe Chao Yu 2015-05-06 1243
b4ace33703243fe Chao Yu 2015-05-06 1244 if (offset + len >= i_size_read(inode))
b4ace33703243fe Chao Yu 2015-05-06 1245 return -EINVAL;
b4ace33703243fe Chao Yu 2015-05-06 1246
b4ace33703243fe Chao Yu 2015-05-06 1247 /* collapse range should be aligned to block size of f2fs. */
b4ace33703243fe Chao Yu 2015-05-06 1248 if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1))
b4ace33703243fe Chao Yu 2015-05-06 1249 return -EINVAL;
b4ace33703243fe Chao Yu 2015-05-06 1250
97a7b2c274d5dbe Jaegeuk Kim 2015-06-17 1251 ret = f2fs_convert_inline_inode(inode);
97a7b2c274d5dbe Jaegeuk Kim 2015-06-17 1252 if (ret)
97a7b2c274d5dbe Jaegeuk Kim 2015-06-17 1253 return ret;
97a7b2c274d5dbe Jaegeuk Kim 2015-06-17 1254
b4ace33703243fe Chao Yu 2015-05-06 1255 /* write out all dirty pages from offset */
b4ace33703243fe Chao Yu 2015-05-06 1256 ret = filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
b4ace33703243fe Chao Yu 2015-05-06 1257 if (ret)
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1258 return ret;
b4ace33703243fe Chao Yu 2015-05-06 1259
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1260 ret = f2fs_do_collapse(inode, offset, len);
b4ace33703243fe Chao Yu 2015-05-06 1261 if (ret)
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1262 return ret;
b4ace33703243fe Chao Yu 2015-05-06 1263
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1264 /* write out all moved pages, if possible */
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1265 down_write(&F2FS_I(inode)->i_mmap_sem);
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1266 filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1267 truncate_pagecache(inode, offset);
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1268
b4ace33703243fe Chao Yu 2015-05-06 1269 new_size = i_size_read(inode) - len;
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1270 truncate_pagecache(inode, new_size);
b4ace33703243fe Chao Yu 2015-05-06 1271
c42d28ce3e16dbd Chao Yu 2019-02-02 1272 ret = f2fs_truncate_blocks(inode, new_size, true);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1273 up_write(&F2FS_I(inode)->i_mmap_sem);
b4ace33703243fe Chao Yu 2015-05-06 1274 if (!ret)
fc9581c80972296 Jaegeuk Kim 2016-05-20 1275 f2fs_i_size_write(inode, new_size);
b4ace33703243fe Chao Yu 2015-05-06 1276 return ret;
b4ace33703243fe Chao Yu 2015-05-06 1277 }
b4ace33703243fe Chao Yu 2015-05-06 1278
6e9619499f53b22 Chao Yu 2016-05-09 1279 static int f2fs_do_zero_range(struct dnode_of_data *dn, pgoff_t start,
6e9619499f53b22 Chao Yu 2016-05-09 1280 pgoff_t end)
6e9619499f53b22 Chao Yu 2016-05-09 1281 {
6e9619499f53b22 Chao Yu 2016-05-09 1282 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
6e9619499f53b22 Chao Yu 2016-05-09 1283 pgoff_t index = start;
6e9619499f53b22 Chao Yu 2016-05-09 1284 unsigned int ofs_in_node = dn->ofs_in_node;
6e9619499f53b22 Chao Yu 2016-05-09 1285 blkcnt_t count = 0;
6e9619499f53b22 Chao Yu 2016-05-09 1286 int ret;
6e9619499f53b22 Chao Yu 2016-05-09 1287
6e9619499f53b22 Chao Yu 2016-05-09 1288 for (; index < end; index++, dn->ofs_in_node++) {
7a2af766af15887 Chao Yu 2017-07-19 1289 if (datablock_addr(dn->inode, dn->node_page,
7a2af766af15887 Chao Yu 2017-07-19 1290 dn->ofs_in_node) == NULL_ADDR)
6e9619499f53b22 Chao Yu 2016-05-09 1291 count++;
6e9619499f53b22 Chao Yu 2016-05-09 1292 }
6e9619499f53b22 Chao Yu 2016-05-09 1293
6e9619499f53b22 Chao Yu 2016-05-09 1294 dn->ofs_in_node = ofs_in_node;
4d57b86dd86404f Chao Yu 2018-05-30 1295 ret = f2fs_reserve_new_blocks(dn, count);
6e9619499f53b22 Chao Yu 2016-05-09 1296 if (ret)
6e9619499f53b22 Chao Yu 2016-05-09 1297 return ret;
6e9619499f53b22 Chao Yu 2016-05-09 1298
6e9619499f53b22 Chao Yu 2016-05-09 1299 dn->ofs_in_node = ofs_in_node;
6e9619499f53b22 Chao Yu 2016-05-09 1300 for (index = start; index < end; index++, dn->ofs_in_node++) {
7a2af766af15887 Chao Yu 2017-07-19 1301 dn->data_blkaddr = datablock_addr(dn->inode,
7a2af766af15887 Chao Yu 2017-07-19 1302 dn->node_page, dn->ofs_in_node);
6e9619499f53b22 Chao Yu 2016-05-09 1303 /*
4d57b86dd86404f Chao Yu 2018-05-30 1304 * f2fs_reserve_new_blocks will not guarantee entire block
6e9619499f53b22 Chao Yu 2016-05-09 1305 * allocation.
6e9619499f53b22 Chao Yu 2016-05-09 1306 */
6e9619499f53b22 Chao Yu 2016-05-09 1307 if (dn->data_blkaddr == NULL_ADDR) {
6e9619499f53b22 Chao Yu 2016-05-09 1308 ret = -ENOSPC;
6e9619499f53b22 Chao Yu 2016-05-09 1309 break;
6e9619499f53b22 Chao Yu 2016-05-09 1310 }
6e9619499f53b22 Chao Yu 2016-05-09 1311 if (dn->data_blkaddr != NEW_ADDR) {
4d57b86dd86404f Chao Yu 2018-05-30 1312 f2fs_invalidate_blocks(sbi, dn->data_blkaddr);
6e9619499f53b22 Chao Yu 2016-05-09 1313 dn->data_blkaddr = NEW_ADDR;
4d57b86dd86404f Chao Yu 2018-05-30 1314 f2fs_set_data_blkaddr(dn);
6e9619499f53b22 Chao Yu 2016-05-09 1315 }
6e9619499f53b22 Chao Yu 2016-05-09 1316 }
6e9619499f53b22 Chao Yu 2016-05-09 1317
6e9619499f53b22 Chao Yu 2016-05-09 1318 f2fs_update_extent_cache_range(dn, start, 0, index - start);
6e9619499f53b22 Chao Yu 2016-05-09 1319
6e9619499f53b22 Chao Yu 2016-05-09 1320 return ret;
6e9619499f53b22 Chao Yu 2016-05-09 1321 }
6e9619499f53b22 Chao Yu 2016-05-09 1322
75cd4e098d17843 Chao Yu 2015-05-06 1323 static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
75cd4e098d17843 Chao Yu 2015-05-06 1324 int mode)
75cd4e098d17843 Chao Yu 2015-05-06 1325 {
75cd4e098d17843 Chao Yu 2015-05-06 1326 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
75cd4e098d17843 Chao Yu 2015-05-06 1327 struct address_space *mapping = inode->i_mapping;
75cd4e098d17843 Chao Yu 2015-05-06 1328 pgoff_t index, pg_start, pg_end;
75cd4e098d17843 Chao Yu 2015-05-06 1329 loff_t new_size = i_size_read(inode);
75cd4e098d17843 Chao Yu 2015-05-06 1330 loff_t off_start, off_end;
75cd4e098d17843 Chao Yu 2015-05-06 1331 int ret = 0;
75cd4e098d17843 Chao Yu 2015-05-06 1332
75cd4e098d17843 Chao Yu 2015-05-06 1333 ret = inode_newsize_ok(inode, (len + offset));
75cd4e098d17843 Chao Yu 2015-05-06 1334 if (ret)
75cd4e098d17843 Chao Yu 2015-05-06 1335 return ret;
75cd4e098d17843 Chao Yu 2015-05-06 1336
75cd4e098d17843 Chao Yu 2015-05-06 1337 ret = f2fs_convert_inline_inode(inode);
75cd4e098d17843 Chao Yu 2015-05-06 1338 if (ret)
75cd4e098d17843 Chao Yu 2015-05-06 1339 return ret;
75cd4e098d17843 Chao Yu 2015-05-06 1340
75cd4e098d17843 Chao Yu 2015-05-06 1341 ret = filemap_write_and_wait_range(mapping, offset, offset + len - 1);
75cd4e098d17843 Chao Yu 2015-05-06 1342 if (ret)
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1343 return ret;
75cd4e098d17843 Chao Yu 2015-05-06 1344
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 1345 pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 1346 pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
75cd4e098d17843 Chao Yu 2015-05-06 1347
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 1348 off_start = offset & (PAGE_SIZE - 1);
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 1349 off_end = (offset + len) & (PAGE_SIZE - 1);
75cd4e098d17843 Chao Yu 2015-05-06 1350
75cd4e098d17843 Chao Yu 2015-05-06 1351 if (pg_start == pg_end) {
6394328ab8a2ab6 Chao Yu 2015-08-07 1352 ret = fill_zero(inode, pg_start, off_start,
6394328ab8a2ab6 Chao Yu 2015-08-07 1353 off_end - off_start);
6394328ab8a2ab6 Chao Yu 2015-08-07 1354 if (ret)
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1355 return ret;
6394328ab8a2ab6 Chao Yu 2015-08-07 1356
75cd4e098d17843 Chao Yu 2015-05-06 1357 new_size = max_t(loff_t, new_size, offset + len);
75cd4e098d17843 Chao Yu 2015-05-06 1358 } else {
75cd4e098d17843 Chao Yu 2015-05-06 1359 if (off_start) {
6394328ab8a2ab6 Chao Yu 2015-08-07 1360 ret = fill_zero(inode, pg_start++, off_start,
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 1361 PAGE_SIZE - off_start);
6394328ab8a2ab6 Chao Yu 2015-08-07 1362 if (ret)
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1363 return ret;
6394328ab8a2ab6 Chao Yu 2015-08-07 1364
75cd4e098d17843 Chao Yu 2015-05-06 1365 new_size = max_t(loff_t, new_size,
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 1366 (loff_t)pg_start << PAGE_SHIFT);
75cd4e098d17843 Chao Yu 2015-05-06 1367 }
75cd4e098d17843 Chao Yu 2015-05-06 1368
6e9619499f53b22 Chao Yu 2016-05-09 1369 for (index = pg_start; index < pg_end;) {
75cd4e098d17843 Chao Yu 2015-05-06 1370 struct dnode_of_data dn;
6e9619499f53b22 Chao Yu 2016-05-09 1371 unsigned int end_offset;
6e9619499f53b22 Chao Yu 2016-05-09 1372 pgoff_t end;
75cd4e098d17843 Chao Yu 2015-05-06 1373
c7079853c859c91 Chao Yu 2018-08-05 1374 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1375 down_write(&F2FS_I(inode)->i_mmap_sem);
c7079853c859c91 Chao Yu 2018-08-05 1376
c7079853c859c91 Chao Yu 2018-08-05 1377 truncate_pagecache_range(inode,
c7079853c859c91 Chao Yu 2018-08-05 1378 (loff_t)index << PAGE_SHIFT,
c7079853c859c91 Chao Yu 2018-08-05 1379 ((loff_t)pg_end << PAGE_SHIFT) - 1);
c7079853c859c91 Chao Yu 2018-08-05 1380
75cd4e098d17843 Chao Yu 2015-05-06 1381 f2fs_lock_op(sbi);
75cd4e098d17843 Chao Yu 2015-05-06 1382
6e9619499f53b22 Chao Yu 2016-05-09 1383 set_new_dnode(&dn, inode, NULL, NULL, 0);
4d57b86dd86404f Chao Yu 2018-05-30 1384 ret = f2fs_get_dnode_of_data(&dn, index, ALLOC_NODE);
75cd4e098d17843 Chao Yu 2015-05-06 1385 if (ret) {
75cd4e098d17843 Chao Yu 2015-05-06 1386 f2fs_unlock_op(sbi);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1387 up_write(&F2FS_I(inode)->i_mmap_sem);
c7079853c859c91 Chao Yu 2018-08-05 1388 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
75cd4e098d17843 Chao Yu 2015-05-06 1389 goto out;
75cd4e098d17843 Chao Yu 2015-05-06 1390 }
75cd4e098d17843 Chao Yu 2015-05-06 1391
6e9619499f53b22 Chao Yu 2016-05-09 1392 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
6e9619499f53b22 Chao Yu 2016-05-09 1393 end = min(pg_end, end_offset - dn.ofs_in_node + index);
6e9619499f53b22 Chao Yu 2016-05-09 1394
6e9619499f53b22 Chao Yu 2016-05-09 1395 ret = f2fs_do_zero_range(&dn, index, end);
75cd4e098d17843 Chao Yu 2015-05-06 1396 f2fs_put_dnode(&dn);
c7079853c859c91 Chao Yu 2018-08-05 1397
75cd4e098d17843 Chao Yu 2015-05-06 1398 f2fs_unlock_op(sbi);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1399 up_write(&F2FS_I(inode)->i_mmap_sem);
c7079853c859c91 Chao Yu 2018-08-05 1400 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
9434fcde1fa0f48 Chao Yu 2016-10-11 1401
9434fcde1fa0f48 Chao Yu 2016-10-11 1402 f2fs_balance_fs(sbi, dn.node_changed);
9434fcde1fa0f48 Chao Yu 2016-10-11 1403
6e9619499f53b22 Chao Yu 2016-05-09 1404 if (ret)
6e9619499f53b22 Chao Yu 2016-05-09 1405 goto out;
75cd4e098d17843 Chao Yu 2015-05-06 1406
6e9619499f53b22 Chao Yu 2016-05-09 1407 index = end;
75cd4e098d17843 Chao Yu 2015-05-06 1408 new_size = max_t(loff_t, new_size,
6e9619499f53b22 Chao Yu 2016-05-09 1409 (loff_t)index << PAGE_SHIFT);
75cd4e098d17843 Chao Yu 2015-05-06 1410 }
75cd4e098d17843 Chao Yu 2015-05-06 1411
75cd4e098d17843 Chao Yu 2015-05-06 1412 if (off_end) {
6394328ab8a2ab6 Chao Yu 2015-08-07 1413 ret = fill_zero(inode, pg_end, 0, off_end);
6394328ab8a2ab6 Chao Yu 2015-08-07 1414 if (ret)
6394328ab8a2ab6 Chao Yu 2015-08-07 1415 goto out;
6394328ab8a2ab6 Chao Yu 2015-08-07 1416
75cd4e098d17843 Chao Yu 2015-05-06 1417 new_size = max_t(loff_t, new_size, offset + len);
75cd4e098d17843 Chao Yu 2015-05-06 1418 }
75cd4e098d17843 Chao Yu 2015-05-06 1419 }
75cd4e098d17843 Chao Yu 2015-05-06 1420
75cd4e098d17843 Chao Yu 2015-05-06 1421 out:
17cd07ae95073c2 Chao Yu 2018-02-25 1422 if (new_size > i_size_read(inode)) {
17cd07ae95073c2 Chao Yu 2018-02-25 1423 if (mode & FALLOC_FL_KEEP_SIZE)
17cd07ae95073c2 Chao Yu 2018-02-25 1424 file_set_keep_isize(inode);
17cd07ae95073c2 Chao Yu 2018-02-25 1425 else
fc9581c80972296 Jaegeuk Kim 2016-05-20 1426 f2fs_i_size_write(inode, new_size);
17cd07ae95073c2 Chao Yu 2018-02-25 1427 }
75cd4e098d17843 Chao Yu 2015-05-06 1428 return ret;
75cd4e098d17843 Chao Yu 2015-05-06 1429 }
75cd4e098d17843 Chao Yu 2015-05-06 1430
f62185d0e283e9d Chao Yu 2015-05-28 1431 static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
f62185d0e283e9d Chao Yu 2015-05-28 1432 {
f62185d0e283e9d Chao Yu 2015-05-28 1433 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1434 pgoff_t nr, pg_start, pg_end, delta, idx;
f62185d0e283e9d Chao Yu 2015-05-28 1435 loff_t new_size;
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1436 int ret = 0;
f62185d0e283e9d Chao Yu 2015-05-28 1437
f62185d0e283e9d Chao Yu 2015-05-28 1438 new_size = i_size_read(inode) + len;
46e82fb1b5349e7 Kinglong Mee 2017-03-10 1439 ret = inode_newsize_ok(inode, new_size);
46e82fb1b5349e7 Kinglong Mee 2017-03-10 1440 if (ret)
46e82fb1b5349e7 Kinglong Mee 2017-03-10 1441 return ret;
f62185d0e283e9d Chao Yu 2015-05-28 1442
f62185d0e283e9d Chao Yu 2015-05-28 1443 if (offset >= i_size_read(inode))
f62185d0e283e9d Chao Yu 2015-05-28 1444 return -EINVAL;
f62185d0e283e9d Chao Yu 2015-05-28 1445
f62185d0e283e9d Chao Yu 2015-05-28 1446 /* insert range should be aligned to block size of f2fs. */
f62185d0e283e9d Chao Yu 2015-05-28 1447 if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1))
f62185d0e283e9d Chao Yu 2015-05-28 1448 return -EINVAL;
f62185d0e283e9d Chao Yu 2015-05-28 1449
97a7b2c274d5dbe Jaegeuk Kim 2015-06-17 1450 ret = f2fs_convert_inline_inode(inode);
97a7b2c274d5dbe Jaegeuk Kim 2015-06-17 1451 if (ret)
97a7b2c274d5dbe Jaegeuk Kim 2015-06-17 1452 return ret;
97a7b2c274d5dbe Jaegeuk Kim 2015-06-17 1453
2c4db1a6f6b42e2 Jaegeuk Kim 2016-01-07 1454 f2fs_balance_fs(sbi, true);
2a3407607028f7c Jaegeuk Kim 2015-12-22 1455
5a3a2d83cda82df Qiuyang Sun 2017-05-18 1456 down_write(&F2FS_I(inode)->i_mmap_sem);
c42d28ce3e16dbd Chao Yu 2019-02-02 1457 ret = f2fs_truncate_blocks(inode, i_size_read(inode), true);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1458 up_write(&F2FS_I(inode)->i_mmap_sem);
f62185d0e283e9d Chao Yu 2015-05-28 1459 if (ret)
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1460 return ret;
f62185d0e283e9d Chao Yu 2015-05-28 1461
f62185d0e283e9d Chao Yu 2015-05-28 1462 /* write out all dirty pages from offset */
f62185d0e283e9d Chao Yu 2015-05-28 1463 ret = filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
f62185d0e283e9d Chao Yu 2015-05-28 1464 if (ret)
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1465 return ret;
f62185d0e283e9d Chao Yu 2015-05-28 1466
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 1467 pg_start = offset >> PAGE_SHIFT;
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 1468 pg_end = (offset + len) >> PAGE_SHIFT;
f62185d0e283e9d Chao Yu 2015-05-28 1469 delta = pg_end - pg_start;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1470 idx = (i_size_read(inode) + PAGE_SIZE - 1) / PAGE_SIZE;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1471
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1472 /* avoid gc operation during block exchange */
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1473 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1474 down_write(&F2FS_I(inode)->i_mmap_sem);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1475 truncate_pagecache(inode, offset);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1476
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1477 while (!ret && idx > pg_start) {
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1478 nr = idx - pg_start;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1479 if (nr > delta)
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1480 nr = delta;
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1481 idx -= nr;
f62185d0e283e9d Chao Yu 2015-05-28 1482
f62185d0e283e9d Chao Yu 2015-05-28 1483 f2fs_lock_op(sbi);
5f281fab9b9a300 Jaegeuk Kim 2016-07-12 1484 f2fs_drop_extent_tree(inode);
5f281fab9b9a300 Jaegeuk Kim 2016-07-12 1485
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1486 ret = __exchange_data_block(inode, inode, idx,
0a2aa8fbb969302 Jaegeuk Kim 2016-07-08 1487 idx + delta, nr, false);
f62185d0e283e9d Chao Yu 2015-05-28 1488 f2fs_unlock_op(sbi);
f62185d0e283e9d Chao Yu 2015-05-28 1489 }
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1490 up_write(&F2FS_I(inode)->i_mmap_sem);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1491 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
f62185d0e283e9d Chao Yu 2015-05-28 1492
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1493 /* write out all moved pages, if possible */
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1494 down_write(&F2FS_I(inode)->i_mmap_sem);
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1495 filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1496 truncate_pagecache(inode, offset);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1497 up_write(&F2FS_I(inode)->i_mmap_sem);
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1498
6e2c64ad7cebf87 Jaegeuk Kim 2015-10-07 1499 if (!ret)
fc9581c80972296 Jaegeuk Kim 2016-05-20 1500 f2fs_i_size_write(inode, new_size);
f62185d0e283e9d Chao Yu 2015-05-28 1501 return ret;
f62185d0e283e9d Chao Yu 2015-05-28 1502 }
f62185d0e283e9d Chao Yu 2015-05-28 1503
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1504 static int expand_inode_data(struct inode *inode, loff_t offset,
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1505 loff_t len, int mode)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1506 {
4081363fbe84a7e Jaegeuk Kim 2014-09-02 1507 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
d5097be55c21c10 Hyunchul Lee 2017-11-28 1508 struct f2fs_map_blocks map = { .m_next_pgofs = NULL,
f9d6d0597698c0d Chao Yu 2018-11-13 1509 .m_next_extent = NULL, .m_seg_type = NO_CHECK_TYPE,
f9d6d0597698c0d Chao Yu 2018-11-13 1510 .m_may_create = true };
e12dd7bd874cb1c Jaegeuk Kim 2016-05-06 1511 pgoff_t pg_end;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1512 loff_t new_size = i_size_read(inode);
e12dd7bd874cb1c Jaegeuk Kim 2016-05-06 1513 loff_t off_end;
a7de608691f766c Jaegeuk Kim 2016-11-11 1514 int err;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1515
a7de608691f766c Jaegeuk Kim 2016-11-11 1516 err = inode_newsize_ok(inode, (len + offset));
a7de608691f766c Jaegeuk Kim 2016-11-11 1517 if (err)
a7de608691f766c Jaegeuk Kim 2016-11-11 1518 return err;
9ffe0fb5f3bbd01 Huajun Li 2013-11-10 1519
a7de608691f766c Jaegeuk Kim 2016-11-11 1520 err = f2fs_convert_inline_inode(inode);
a7de608691f766c Jaegeuk Kim 2016-11-11 1521 if (err)
a7de608691f766c Jaegeuk Kim 2016-11-11 1522 return err;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1523
2c4db1a6f6b42e2 Jaegeuk Kim 2016-01-07 1524 f2fs_balance_fs(sbi, true);
2a3407607028f7c Jaegeuk Kim 2015-12-22 1525
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 1526 pg_end = ((unsigned long long)offset + len) >> PAGE_SHIFT;
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 1527 off_end = (offset + len) & (PAGE_SIZE - 1);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1528
e12dd7bd874cb1c Jaegeuk Kim 2016-05-06 1529 map.m_lblk = ((unsigned long long)offset) >> PAGE_SHIFT;
e12dd7bd874cb1c Jaegeuk Kim 2016-05-06 1530 map.m_len = pg_end - map.m_lblk;
e12dd7bd874cb1c Jaegeuk Kim 2016-05-06 1531 if (off_end)
e12dd7bd874cb1c Jaegeuk Kim 2016-05-06 1532 map.m_len++;
ead432756ab2c76 Jaegeuk Kim 2014-06-13 1533
a7de608691f766c Jaegeuk Kim 2016-11-11 1534 err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_AIO);
a7de608691f766c Jaegeuk Kim 2016-11-11 1535 if (err) {
e12dd7bd874cb1c Jaegeuk Kim 2016-05-06 1536 pgoff_t last_off;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1537
e12dd7bd874cb1c Jaegeuk Kim 2016-05-06 1538 if (!map.m_len)
a7de608691f766c Jaegeuk Kim 2016-11-11 1539 return err;
98397ff3cddcfde Jaegeuk Kim 2014-06-13 1540
e12dd7bd874cb1c Jaegeuk Kim 2016-05-06 1541 last_off = map.m_lblk + map.m_len - 1;
e12dd7bd874cb1c Jaegeuk Kim 2016-05-06 1542
e12dd7bd874cb1c Jaegeuk Kim 2016-05-06 1543 /* update new size to the failed position */
e12dd7bd874cb1c Jaegeuk Kim 2016-05-06 1544 new_size = (last_off == pg_end) ? offset + len :
e12dd7bd874cb1c Jaegeuk Kim 2016-05-06 1545 (loff_t)(last_off + 1) << PAGE_SHIFT;
e12dd7bd874cb1c Jaegeuk Kim 2016-05-06 1546 } else {
e12dd7bd874cb1c Jaegeuk Kim 2016-05-06 1547 new_size = ((loff_t)pg_end << PAGE_SHIFT) + off_end;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1548 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1549
e8ed90a6d9a4789 Chao Yu 2017-11-05 1550 if (new_size > i_size_read(inode)) {
e8ed90a6d9a4789 Chao Yu 2017-11-05 1551 if (mode & FALLOC_FL_KEEP_SIZE)
e8ed90a6d9a4789 Chao Yu 2017-11-05 1552 file_set_keep_isize(inode);
e8ed90a6d9a4789 Chao Yu 2017-11-05 1553 else
fc9581c80972296 Jaegeuk Kim 2016-05-20 1554 f2fs_i_size_write(inode, new_size);
e8ed90a6d9a4789 Chao Yu 2017-11-05 1555 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1556
a7de608691f766c Jaegeuk Kim 2016-11-11 1557 return err;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1558 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1559
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1560 static long f2fs_fallocate(struct file *file, int mode,
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1561 loff_t offset, loff_t len)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1562 {
6131ffaa1f09141 Al Viro 2013-02-27 1563 struct inode *inode = file_inode(file);
587c0a42552a69a Taehee Yoo 2015-04-21 1564 long ret = 0;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1565
1f227a3e215d361 Jaegeuk Kim 2017-10-23 1566 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
1f227a3e215d361 Jaegeuk Kim 2017-10-23 1567 return -EIO;
1f227a3e215d361 Jaegeuk Kim 2017-10-23 1568
c998012b0bb9300 Chao Yu 2015-09-11 1569 /* f2fs only support ->fallocate for regular file */
c998012b0bb9300 Chao Yu 2015-09-11 1570 if (!S_ISREG(inode->i_mode))
c998012b0bb9300 Chao Yu 2015-09-11 1571 return -EINVAL;
c998012b0bb9300 Chao Yu 2015-09-11 1572
62230e0d702f613 Chandan Rajendra 2018-12-12 1573 if (IS_ENCRYPTED(inode) &&
f62185d0e283e9d Chao Yu 2015-05-28 1574 (mode & (FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_INSERT_RANGE)))
fcc85a4d86b5018 Jaegeuk Kim 2015-04-21 1575 return -EOPNOTSUPP;
fcc85a4d86b5018 Jaegeuk Kim 2015-04-21 1576
b4ace33703243fe Chao Yu 2015-05-06 1577 if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |
f62185d0e283e9d Chao Yu 2015-05-28 1578 FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_ZERO_RANGE |
f62185d0e283e9d Chao Yu 2015-05-28 1579 FALLOC_FL_INSERT_RANGE))
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1580 return -EOPNOTSUPP;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1581
5955102c9984fa0 Al Viro 2016-01-22 1582 inode_lock(inode);
3375f696bd9cfdf Chao Yu 2014-01-28 1583
587c0a42552a69a Taehee Yoo 2015-04-21 1584 if (mode & FALLOC_FL_PUNCH_HOLE) {
587c0a42552a69a Taehee Yoo 2015-04-21 1585 if (offset >= inode->i_size)
587c0a42552a69a Taehee Yoo 2015-04-21 1586 goto out;
587c0a42552a69a Taehee Yoo 2015-04-21 1587
a66c7b2fcfbc9ef Chao Yu 2013-11-22 1588 ret = punch_hole(inode, offset, len);
b4ace33703243fe Chao Yu 2015-05-06 1589 } else if (mode & FALLOC_FL_COLLAPSE_RANGE) {
b4ace33703243fe Chao Yu 2015-05-06 1590 ret = f2fs_collapse_range(inode, offset, len);
75cd4e098d17843 Chao Yu 2015-05-06 1591 } else if (mode & FALLOC_FL_ZERO_RANGE) {
75cd4e098d17843 Chao Yu 2015-05-06 1592 ret = f2fs_zero_range(inode, offset, len, mode);
f62185d0e283e9d Chao Yu 2015-05-28 1593 } else if (mode & FALLOC_FL_INSERT_RANGE) {
f62185d0e283e9d Chao Yu 2015-05-28 1594 ret = f2fs_insert_range(inode, offset, len);
b4ace33703243fe Chao Yu 2015-05-06 1595 } else {
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1596 ret = expand_inode_data(inode, offset, len, mode);
b4ace33703243fe Chao Yu 2015-05-06 1597 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1598
3af60a49fd2edfe Namjae Jeon 2012-12-30 1599 if (!ret) {
078cd8279e65998 Deepa Dinamani 2016-09-14 1600 inode->i_mtime = inode->i_ctime = current_time(inode);
7c45729a4d6d1c9 Jaegeuk Kim 2016-10-14 1601 f2fs_mark_inode_dirty_sync(inode, false);
d0239e1bf5204d6 Jaegeuk Kim 2016-01-08 1602 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
3af60a49fd2edfe Namjae Jeon 2012-12-30 1603 }
3375f696bd9cfdf Chao Yu 2014-01-28 1604
587c0a42552a69a Taehee Yoo 2015-04-21 1605 out:
5955102c9984fa0 Al Viro 2016-01-22 1606 inode_unlock(inode);
3375f696bd9cfdf Chao Yu 2014-01-28 1607
c01e285324793a8 Namjae Jeon 2013-04-23 1608 trace_f2fs_fallocate(inode, mode, offset, len, ret);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1609 return ret;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1610 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1611
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1612 static int f2fs_release_file(struct inode *inode, struct file *filp)
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1613 {
de5307e46d28aa2 Jaegeuk Kim 2016-04-11 1614 /*
de5307e46d28aa2 Jaegeuk Kim 2016-04-11 1615 * f2fs_relase_file is called at every close calls. So we should
de5307e46d28aa2 Jaegeuk Kim 2016-04-11 1616 * not drop any inmemory pages by close called by other process.
de5307e46d28aa2 Jaegeuk Kim 2016-04-11 1617 */
de5307e46d28aa2 Jaegeuk Kim 2016-04-11 1618 if (!(filp->f_mode & FMODE_WRITE) ||
de5307e46d28aa2 Jaegeuk Kim 2016-04-11 1619 atomic_read(&inode->i_writecount) != 1)
de5307e46d28aa2 Jaegeuk Kim 2016-04-11 1620 return 0;
de5307e46d28aa2 Jaegeuk Kim 2016-04-11 1621
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1622 /* some remained atomic pages should discarded */
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1623 if (f2fs_is_atomic_file(inode))
4d57b86dd86404f Chao Yu 2018-05-30 1624 f2fs_drop_inmem_pages(inode);
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1625 if (f2fs_is_volatile_file(inode)) {
91942321e4c9f84 Jaegeuk Kim 2016-05-20 1626 set_inode_flag(inode, FI_DROP_CACHE);
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1627 filemap_fdatawrite(inode->i_mapping);
91942321e4c9f84 Jaegeuk Kim 2016-05-20 1628 clear_inode_flag(inode, FI_DROP_CACHE);
dfa742803fbbd8b Chao Yu 2018-06-04 1629 clear_inode_flag(inode, FI_VOLATILE_FILE);
dfa742803fbbd8b Chao Yu 2018-06-04 1630 stat_dec_volatile_write(inode);
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1631 }
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1632 return 0;
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1633 }
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1634
7a10f0177e117e9 Jaegeuk Kim 2017-07-24 1635 static int f2fs_file_flush(struct file *file, fl_owner_t id)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1636 {
7a10f0177e117e9 Jaegeuk Kim 2017-07-24 1637 struct inode *inode = file_inode(file);
7a10f0177e117e9 Jaegeuk Kim 2017-07-24 1638
7a10f0177e117e9 Jaegeuk Kim 2017-07-24 1639 /*
7a10f0177e117e9 Jaegeuk Kim 2017-07-24 1640 * If the process doing a transaction is crashed, we should do
7a10f0177e117e9 Jaegeuk Kim 2017-07-24 1641 * roll-back. Otherwise, other reader/write can see corrupted database
7a10f0177e117e9 Jaegeuk Kim 2017-07-24 1642 * until all the writers close its file. Since this should be done
7a10f0177e117e9 Jaegeuk Kim 2017-07-24 1643 * before dropping file lock, it needs to do in ->flush.
7a10f0177e117e9 Jaegeuk Kim 2017-07-24 1644 */
7a10f0177e117e9 Jaegeuk Kim 2017-07-24 1645 if (f2fs_is_atomic_file(inode) &&
7a10f0177e117e9 Jaegeuk Kim 2017-07-24 1646 F2FS_I(inode)->inmem_task == current)
4d57b86dd86404f Chao Yu 2018-05-30 1647 f2fs_drop_inmem_pages(inode);
7a10f0177e117e9 Jaegeuk Kim 2017-07-24 1648 return 0;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1649 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1650
52656e6cf7be695 Jaegeuk Kim 2014-09-24 1651 static int f2fs_ioc_getflags(struct file *filp, unsigned long arg)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1652 {
6131ffaa1f09141 Al Viro 2013-02-27 1653 struct inode *inode = file_inode(filp);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1654 struct f2fs_inode_info *fi = F2FS_I(inode);
764811581d1cfb5 Chao Yu 2018-04-08 1655 unsigned int flags = fi->i_flags;
764811581d1cfb5 Chao Yu 2018-04-08 1656
62230e0d702f613 Chandan Rajendra 2018-12-12 1657 if (IS_ENCRYPTED(inode))
764811581d1cfb5 Chao Yu 2018-04-08 1658 flags |= F2FS_ENCRYPT_FL;
764811581d1cfb5 Chao Yu 2018-04-08 1659 if (f2fs_has_inline_data(inode) || f2fs_has_inline_dentry(inode))
764811581d1cfb5 Chao Yu 2018-04-08 1660 flags |= F2FS_INLINE_DATA_FL;
5d539245cb18afa Jaegeuk Kim 2019-01-03 1661 if (is_inode_flag_set(inode, FI_PIN_FILE))
5d539245cb18afa Jaegeuk Kim 2019-01-03 1662 flags |= F2FS_NOCOW_FL;
764811581d1cfb5 Chao Yu 2018-04-08 1663
764811581d1cfb5 Chao Yu 2018-04-08 1664 flags &= F2FS_FL_USER_VISIBLE;
764811581d1cfb5 Chao Yu 2018-04-08 1665
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1666 return put_user(flags, (int __user *)arg);
52656e6cf7be695 Jaegeuk Kim 2014-09-24 1667 }
52656e6cf7be695 Jaegeuk Kim 2014-09-24 1668
2c1d03056991286 Chao Yu 2017-07-29 1669 static int __f2fs_ioc_setflags(struct inode *inode, unsigned int flags)
2c1d03056991286 Chao Yu 2017-07-29 1670 {
2c1d03056991286 Chao Yu 2017-07-29 1671 struct f2fs_inode_info *fi = F2FS_I(inode);
2c1d03056991286 Chao Yu 2017-07-29 1672 unsigned int oldflags;
2c1d03056991286 Chao Yu 2017-07-29 1673
2c1d03056991286 Chao Yu 2017-07-29 1674 /* Is it quota file? Do not allow user to mess with it */
2c1d03056991286 Chao Yu 2017-07-29 1675 if (IS_NOQUOTA(inode))
2c1d03056991286 Chao Yu 2017-07-29 1676 return -EPERM;
2c1d03056991286 Chao Yu 2017-07-29 1677
2c1d03056991286 Chao Yu 2017-07-29 1678 flags = f2fs_mask_flags(inode->i_mode, flags);
2c1d03056991286 Chao Yu 2017-07-29 1679
2c1d03056991286 Chao Yu 2017-07-29 1680 oldflags = fi->i_flags;
2c1d03056991286 Chao Yu 2017-07-29 1681
59c844088b19c54 Chao Yu 2018-04-03 1682 if ((flags ^ oldflags) & (F2FS_APPEND_FL | F2FS_IMMUTABLE_FL))
2c1d03056991286 Chao Yu 2017-07-29 1683 if (!capable(CAP_LINUX_IMMUTABLE))
2c1d03056991286 Chao Yu 2017-07-29 1684 return -EPERM;
2c1d03056991286 Chao Yu 2017-07-29 1685
c807a7cb543b535 Chao Yu 2018-04-08 1686 flags = flags & F2FS_FL_USER_MODIFIABLE;
c807a7cb543b535 Chao Yu 2018-04-08 1687 flags |= oldflags & ~F2FS_FL_USER_MODIFIABLE;
2c1d03056991286 Chao Yu 2017-07-29 1688 fi->i_flags = flags;
2c1d03056991286 Chao Yu 2017-07-29 1689
59c844088b19c54 Chao Yu 2018-04-03 1690 if (fi->i_flags & F2FS_PROJINHERIT_FL)
2c1d03056991286 Chao Yu 2017-07-29 1691 set_inode_flag(inode, FI_PROJ_INHERIT);
2c1d03056991286 Chao Yu 2017-07-29 1692 else
2c1d03056991286 Chao Yu 2017-07-29 1693 clear_inode_flag(inode, FI_PROJ_INHERIT);
2c1d03056991286 Chao Yu 2017-07-29 1694
2c1d03056991286 Chao Yu 2017-07-29 1695 inode->i_ctime = current_time(inode);
2c1d03056991286 Chao Yu 2017-07-29 1696 f2fs_set_inode_flags(inode);
b32e019049e959e Chao Yu 2018-12-18 1697 f2fs_mark_inode_dirty_sync(inode, true);
2c1d03056991286 Chao Yu 2017-07-29 1698 return 0;
2c1d03056991286 Chao Yu 2017-07-29 1699 }
2c1d03056991286 Chao Yu 2017-07-29 1700
52656e6cf7be695 Jaegeuk Kim 2014-09-24 1701 static int f2fs_ioc_setflags(struct file *filp, unsigned long arg)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1702 {
52656e6cf7be695 Jaegeuk Kim 2014-09-24 1703 struct inode *inode = file_inode(filp);
69494229ba5ada1 Sheng Yong 2016-08-23 1704 unsigned int flags;
52656e6cf7be695 Jaegeuk Kim 2014-09-24 1705 int ret;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1706
7fb17fe44b70c85 Chao Yu 2016-05-09 1707 if (!inode_owner_or_capable(inode))
7fb17fe44b70c85 Chao Yu 2016-05-09 1708 return -EACCES;
7fb17fe44b70c85 Chao Yu 2016-05-09 1709
7fb17fe44b70c85 Chao Yu 2016-05-09 1710 if (get_user(flags, (int __user *)arg))
7fb17fe44b70c85 Chao Yu 2016-05-09 1711 return -EFAULT;
7fb17fe44b70c85 Chao Yu 2016-05-09 1712
bdaec334bbe7d23 Al Viro 2013-03-20 1713 ret = mnt_want_write_file(filp);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1714 if (ret)
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1715 return ret;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1716
5955102c9984fa0 Al Viro 2016-01-22 1717 inode_lock(inode);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1718
2c1d03056991286 Chao Yu 2017-07-29 1719 ret = __f2fs_ioc_setflags(inode, flags);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1720
a72d4b97bb83c92 Chao Yu 2017-05-03 1721 inode_unlock(inode);
bdaec334bbe7d23 Al Viro 2013-03-20 1722 mnt_drop_write_file(filp);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1723 return ret;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 1724 }
52656e6cf7be695 Jaegeuk Kim 2014-09-24 1725
d49f3e890290bd1 Chao Yu 2015-01-23 1726 static int f2fs_ioc_getversion(struct file *filp, unsigned long arg)
d49f3e890290bd1 Chao Yu 2015-01-23 1727 {
d49f3e890290bd1 Chao Yu 2015-01-23 1728 struct inode *inode = file_inode(filp);
d49f3e890290bd1 Chao Yu 2015-01-23 1729
d49f3e890290bd1 Chao Yu 2015-01-23 1730 return put_user(inode->i_generation, (int __user *)arg);
d49f3e890290bd1 Chao Yu 2015-01-23 1731 }
d49f3e890290bd1 Chao Yu 2015-01-23 1732
88b88a667971599 Jaegeuk Kim 2014-10-06 1733 static int f2fs_ioc_start_atomic_write(struct file *filp)
88b88a667971599 Jaegeuk Kim 2014-10-06 1734 {
88b88a667971599 Jaegeuk Kim 2014-10-06 1735 struct inode *inode = file_inode(filp);
f4c9c743acedc2f Chao Yu 2015-07-17 1736 int ret;
88b88a667971599 Jaegeuk Kim 2014-10-06 1737
88b88a667971599 Jaegeuk Kim 2014-10-06 1738 if (!inode_owner_or_capable(inode))
88b88a667971599 Jaegeuk Kim 2014-10-06 1739 return -EACCES;
88b88a667971599 Jaegeuk Kim 2014-10-06 1740
e811898c97f83ae Jaegeuk Kim 2017-03-17 1741 if (!S_ISREG(inode->i_mode))
e811898c97f83ae Jaegeuk Kim 2017-03-17 1742 return -EINVAL;
e811898c97f83ae Jaegeuk Kim 2017-03-17 1743
7fb17fe44b70c85 Chao Yu 2016-05-09 1744 ret = mnt_want_write_file(filp);
7fb17fe44b70c85 Chao Yu 2016-05-09 1745 if (ret)
7fb17fe44b70c85 Chao Yu 2016-05-09 1746 return ret;
7fb17fe44b70c85 Chao Yu 2016-05-09 1747
0fac558b9658479 Chao Yu 2016-05-09 1748 inode_lock(inode);
0fac558b9658479 Chao Yu 2016-05-09 1749
455e3a5887ee7eb Jaegeuk Kim 2018-07-27 1750 if (f2fs_is_atomic_file(inode)) {
455e3a5887ee7eb Jaegeuk Kim 2018-07-27 1751 if (is_inode_flag_set(inode, FI_ATOMIC_REVOKE_REQUEST))
455e3a5887ee7eb Jaegeuk Kim 2018-07-27 1752 ret = -EINVAL;
7fb17fe44b70c85 Chao Yu 2016-05-09 1753 goto out;
455e3a5887ee7eb Jaegeuk Kim 2018-07-27 1754 }
88b88a667971599 Jaegeuk Kim 2014-10-06 1755
f4c9c743acedc2f Chao Yu 2015-07-17 1756 ret = f2fs_convert_inline_inode(inode);
f4c9c743acedc2f Chao Yu 2015-07-17 1757 if (ret)
7fb17fe44b70c85 Chao Yu 2016-05-09 1758 goto out;
88b88a667971599 Jaegeuk Kim 2014-10-06 1759
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1760 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1761
31867b23d7d1ee3 Jaegeuk Kim 2018-12-28 1762 /*
31867b23d7d1ee3 Jaegeuk Kim 2018-12-28 1763 * Should wait end_io to count F2FS_WB_CP_DATA correctly by
31867b23d7d1ee3 Jaegeuk Kim 2018-12-28 1764 * f2fs_is_atomic_file.
31867b23d7d1ee3 Jaegeuk Kim 2018-12-28 1765 */
31867b23d7d1ee3 Jaegeuk Kim 2018-12-28 1766 if (get_dirty_pages(inode))
c27753d675fccd3 Jaegeuk Kim 2016-04-12 1767 f2fs_msg(F2FS_I_SB(inode)->sb, KERN_WARNING,
204706c7accfabb Jaegeuk Kim 2016-12-02 1768 "Unexpected flush for atomic writes: ino=%lu, npages=%u",
c27753d675fccd3 Jaegeuk Kim 2016-04-12 1769 inode->i_ino, get_dirty_pages(inode));
c27753d675fccd3 Jaegeuk Kim 2016-04-12 1770 ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1771 if (ret) {
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1772 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
684ca7e55de1f3d Kinglong Mee 2017-03-18 1773 goto out;
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1774 }
31867b23d7d1ee3 Jaegeuk Kim 2018-12-28 1775
054afda9991786e Yunlei He 2018-04-18 1776 set_inode_flag(inode, FI_ATOMIC_FILE);
2ef79ecb5e906d8 Chao Yu 2018-05-07 1777 clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1778 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
684ca7e55de1f3d Kinglong Mee 2017-03-18 1779
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1780 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
7a10f0177e117e9 Jaegeuk Kim 2017-07-24 1781 F2FS_I(inode)->inmem_task = current;
26a28a0c1eb756b Jaegeuk Kim 2016-12-28 1782 stat_inc_atomic_write(inode);
26a28a0c1eb756b Jaegeuk Kim 2016-12-28 1783 stat_update_max_atomic_write(inode);
684ca7e55de1f3d Kinglong Mee 2017-03-18 1784 out:
0fac558b9658479 Chao Yu 2016-05-09 1785 inode_unlock(inode);
7fb17fe44b70c85 Chao Yu 2016-05-09 1786 mnt_drop_write_file(filp);
c27753d675fccd3 Jaegeuk Kim 2016-04-12 1787 return ret;
88b88a667971599 Jaegeuk Kim 2014-10-06 1788 }
88b88a667971599 Jaegeuk Kim 2014-10-06 1789
88b88a667971599 Jaegeuk Kim 2014-10-06 1790 static int f2fs_ioc_commit_atomic_write(struct file *filp)
88b88a667971599 Jaegeuk Kim 2014-10-06 1791 {
88b88a667971599 Jaegeuk Kim 2014-10-06 1792 struct inode *inode = file_inode(filp);
88b88a667971599 Jaegeuk Kim 2014-10-06 1793 int ret;
88b88a667971599 Jaegeuk Kim 2014-10-06 1794
88b88a667971599 Jaegeuk Kim 2014-10-06 1795 if (!inode_owner_or_capable(inode))
88b88a667971599 Jaegeuk Kim 2014-10-06 1796 return -EACCES;
88b88a667971599 Jaegeuk Kim 2014-10-06 1797
88b88a667971599 Jaegeuk Kim 2014-10-06 1798 ret = mnt_want_write_file(filp);
88b88a667971599 Jaegeuk Kim 2014-10-06 1799 if (ret)
88b88a667971599 Jaegeuk Kim 2014-10-06 1800 return ret;
88b88a667971599 Jaegeuk Kim 2014-10-06 1801
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1802 f2fs_balance_fs(F2FS_I_SB(inode), true);
0fac558b9658479 Chao Yu 2016-05-09 1803
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 1804 inode_lock(inode);
1dc0f8991d4d931 Chao Yu 2018-02-27 1805
b169c3c560e2b13 Chao Yu 2018-04-18 1806 if (f2fs_is_volatile_file(inode)) {
b169c3c560e2b13 Chao Yu 2018-04-18 1807 ret = -EINVAL;
7fb17fe44b70c85 Chao Yu 2016-05-09 1808 goto err_out;
b169c3c560e2b13 Chao Yu 2018-04-18 1809 }
7fb17fe44b70c85 Chao Yu 2016-05-09 1810
6282adbf932c226 Jaegeuk Kim 2015-07-25 1811 if (f2fs_is_atomic_file(inode)) {
4d57b86dd86404f Chao Yu 2018-05-30 1812 ret = f2fs_commit_inmem_pages(inode);
5fe457430e554a2 Chao Yu 2017-01-07 1813 if (ret)
edb27deea7cabff Jaegeuk Kim 2015-07-25 1814 goto err_out;
88b88a667971599 Jaegeuk Kim 2014-10-06 1815
608514deba38c86 Jaegeuk Kim 2016-04-15 1816 ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true);
5fe457430e554a2 Chao Yu 2017-01-07 1817 if (!ret) {
5fe457430e554a2 Chao Yu 2017-01-07 1818 clear_inode_flag(inode, FI_ATOMIC_FILE);
2ef79ecb5e906d8 Chao Yu 2018-05-07 1819 F2FS_I(inode)->i_gc_failures[GC_FAILURE_ATOMIC] = 0;
26a28a0c1eb756b Jaegeuk Kim 2016-12-28 1820 stat_dec_atomic_write(inode);
5fe457430e554a2 Chao Yu 2017-01-07 1821 }
26a28a0c1eb756b Jaegeuk Kim 2016-12-28 1822 } else {
774e1b78a0f90a7 Chao Yu 2017-08-23 1823 ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 1, false);
26a28a0c1eb756b Jaegeuk Kim 2016-12-28 1824 }
edb27deea7cabff Jaegeuk Kim 2015-07-25 1825 err_out:
2ef79ecb5e906d8 Chao Yu 2018-05-07 1826 if (is_inode_flag_set(inode, FI_ATOMIC_REVOKE_REQUEST)) {
2ef79ecb5e906d8 Chao Yu 2018-05-07 1827 clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST);
2ef79ecb5e906d8 Chao Yu 2018-05-07 1828 ret = -EINVAL;
2ef79ecb5e906d8 Chao Yu 2018-05-07 1829 }
0fac558b9658479 Chao Yu 2016-05-09 1830 inode_unlock(inode);
88b88a667971599 Jaegeuk Kim 2014-10-06 1831 mnt_drop_write_file(filp);
88b88a667971599 Jaegeuk Kim 2014-10-06 1832 return ret;
88b88a667971599 Jaegeuk Kim 2014-10-06 1833 }
88b88a667971599 Jaegeuk Kim 2014-10-06 1834
02a1335f25a386d Jaegeuk Kim 2014-10-06 1835 static int f2fs_ioc_start_volatile_write(struct file *filp)
02a1335f25a386d Jaegeuk Kim 2014-10-06 1836 {
02a1335f25a386d Jaegeuk Kim 2014-10-06 1837 struct inode *inode = file_inode(filp);
f4c9c743acedc2f Chao Yu 2015-07-17 1838 int ret;
02a1335f25a386d Jaegeuk Kim 2014-10-06 1839
02a1335f25a386d Jaegeuk Kim 2014-10-06 1840 if (!inode_owner_or_capable(inode))
02a1335f25a386d Jaegeuk Kim 2014-10-06 1841 return -EACCES;
02a1335f25a386d Jaegeuk Kim 2014-10-06 1842
8ff0971f1500953 Chao Yu 2017-03-17 1843 if (!S_ISREG(inode->i_mode))
8ff0971f1500953 Chao Yu 2017-03-17 1844 return -EINVAL;
8ff0971f1500953 Chao Yu 2017-03-17 1845
7fb17fe44b70c85 Chao Yu 2016-05-09 1846 ret = mnt_want_write_file(filp);
7fb17fe44b70c85 Chao Yu 2016-05-09 1847 if (ret)
7fb17fe44b70c85 Chao Yu 2016-05-09 1848 return ret;
7fb17fe44b70c85 Chao Yu 2016-05-09 1849
0fac558b9658479 Chao Yu 2016-05-09 1850 inode_lock(inode);
0fac558b9658479 Chao Yu 2016-05-09 1851
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1852 if (f2fs_is_volatile_file(inode))
7fb17fe44b70c85 Chao Yu 2016-05-09 1853 goto out;
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1854
f4c9c743acedc2f Chao Yu 2015-07-17 1855 ret = f2fs_convert_inline_inode(inode);
f4c9c743acedc2f Chao Yu 2015-07-17 1856 if (ret)
7fb17fe44b70c85 Chao Yu 2016-05-09 1857 goto out;
b3d208f96d6bb21 Jaegeuk Kim 2014-10-23 1858
648d50ba12c805d Chao Yu 2017-03-22 1859 stat_inc_volatile_write(inode);
648d50ba12c805d Chao Yu 2017-03-22 1860 stat_update_max_volatile_write(inode);
648d50ba12c805d Chao Yu 2017-03-22 1861
91942321e4c9f84 Jaegeuk Kim 2016-05-20 1862 set_inode_flag(inode, FI_VOLATILE_FILE);
d0239e1bf5204d6 Jaegeuk Kim 2016-01-08 1863 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
7fb17fe44b70c85 Chao Yu 2016-05-09 1864 out:
0fac558b9658479 Chao Yu 2016-05-09 1865 inode_unlock(inode);
7fb17fe44b70c85 Chao Yu 2016-05-09 1866 mnt_drop_write_file(filp);
7fb17fe44b70c85 Chao Yu 2016-05-09 1867 return ret;
02a1335f25a386d Jaegeuk Kim 2014-10-06 1868 }
02a1335f25a386d Jaegeuk Kim 2014-10-06 1869
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1870 static int f2fs_ioc_release_volatile_write(struct file *filp)
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1871 {
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1872 struct inode *inode = file_inode(filp);
7fb17fe44b70c85 Chao Yu 2016-05-09 1873 int ret;
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1874
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1875 if (!inode_owner_or_capable(inode))
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1876 return -EACCES;
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1877
7fb17fe44b70c85 Chao Yu 2016-05-09 1878 ret = mnt_want_write_file(filp);
7fb17fe44b70c85 Chao Yu 2016-05-09 1879 if (ret)
7fb17fe44b70c85 Chao Yu 2016-05-09 1880 return ret;
7fb17fe44b70c85 Chao Yu 2016-05-09 1881
0fac558b9658479 Chao Yu 2016-05-09 1882 inode_lock(inode);
0fac558b9658479 Chao Yu 2016-05-09 1883
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1884 if (!f2fs_is_volatile_file(inode))
7fb17fe44b70c85 Chao Yu 2016-05-09 1885 goto out;
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1886
7fb17fe44b70c85 Chao Yu 2016-05-09 1887 if (!f2fs_is_first_block_written(inode)) {
7fb17fe44b70c85 Chao Yu 2016-05-09 1888 ret = truncate_partial_data_page(inode, 0, true);
7fb17fe44b70c85 Chao Yu 2016-05-09 1889 goto out;
7fb17fe44b70c85 Chao Yu 2016-05-09 1890 }
3c6c2bebef79999 Jaegeuk Kim 2015-03-17 1891
7fb17fe44b70c85 Chao Yu 2016-05-09 1892 ret = punch_hole(inode, 0, F2FS_BLKSIZE);
7fb17fe44b70c85 Chao Yu 2016-05-09 1893 out:
0fac558b9658479 Chao Yu 2016-05-09 1894 inode_unlock(inode);
7fb17fe44b70c85 Chao Yu 2016-05-09 1895 mnt_drop_write_file(filp);
7fb17fe44b70c85 Chao Yu 2016-05-09 1896 return ret;
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1897 }
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1898
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1899 static int f2fs_ioc_abort_volatile_write(struct file *filp)
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1900 {
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1901 struct inode *inode = file_inode(filp);
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1902 int ret;
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1903
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1904 if (!inode_owner_or_capable(inode))
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1905 return -EACCES;
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1906
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1907 ret = mnt_want_write_file(filp);
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1908 if (ret)
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1909 return ret;
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1910
0fac558b9658479 Chao Yu 2016-05-09 1911 inode_lock(inode);
0fac558b9658479 Chao Yu 2016-05-09 1912
26dc3d4424e9f47 Jaegeuk Kim 2016-04-11 1913 if (f2fs_is_atomic_file(inode))
4d57b86dd86404f Chao Yu 2018-05-30 1914 f2fs_drop_inmem_pages(inode);
732d56489f21c04 Jaegeuk Kim 2015-12-29 1915 if (f2fs_is_volatile_file(inode)) {
91942321e4c9f84 Jaegeuk Kim 2016-05-20 1916 clear_inode_flag(inode, FI_VOLATILE_FILE);
648d50ba12c805d Chao Yu 2017-03-22 1917 stat_dec_volatile_write(inode);
608514deba38c86 Jaegeuk Kim 2016-04-15 1918 ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true);
732d56489f21c04 Jaegeuk Kim 2015-12-29 1919 }
de6a8ec9822dbe2 Jaegeuk Kim 2015-06-08 1920
455e3a5887ee7eb Jaegeuk Kim 2018-07-27 1921 clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST);
455e3a5887ee7eb Jaegeuk Kim 2018-07-27 1922
0fac558b9658479 Chao Yu 2016-05-09 1923 inode_unlock(inode);
0fac558b9658479 Chao Yu 2016-05-09 1924
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1925 mnt_drop_write_file(filp);
d0239e1bf5204d6 Jaegeuk Kim 2016-01-08 1926 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1927 return ret;
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1928 }
1e84371ffeef451 Jaegeuk Kim 2014-12-09 1929
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1930 static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1931 {
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1932 struct inode *inode = file_inode(filp);
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1933 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1934 struct super_block *sb = sbi->sb;
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1935 __u32 in;
2a96d8ad94ce57c Dan Carpenter 2018-06-20 1936 int ret = 0;
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1937
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1938 if (!capable(CAP_SYS_ADMIN))
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1939 return -EPERM;
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1940
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1941 if (get_user(in, (__u32 __user *)arg))
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1942 return -EFAULT;
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1943
60b2b4ee2bc01dd Sahitya Tummala 2018-05-18 1944 if (in != F2FS_GOING_DOWN_FULLSYNC) {
7fb17fe44b70c85 Chao Yu 2016-05-09 1945 ret = mnt_want_write_file(filp);
7fb17fe44b70c85 Chao Yu 2016-05-09 1946 if (ret)
7fb17fe44b70c85 Chao Yu 2016-05-09 1947 return ret;
60b2b4ee2bc01dd Sahitya Tummala 2018-05-18 1948 }
7fb17fe44b70c85 Chao Yu 2016-05-09 1949
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1950 switch (in) {
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1951 case F2FS_GOING_DOWN_FULLSYNC:
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1952 sb = freeze_bdev(sb->s_bdev);
d027c48447c2c2f Chao Yu 2018-01-17 1953 if (IS_ERR(sb)) {
d027c48447c2c2f Chao Yu 2018-01-17 1954 ret = PTR_ERR(sb);
d027c48447c2c2f Chao Yu 2018-01-17 1955 goto out;
d027c48447c2c2f Chao Yu 2018-01-17 1956 }
d027c48447c2c2f Chao Yu 2018-01-17 1957 if (sb) {
38f91ca8c0ea69f Jaegeuk Kim 2016-05-18 1958 f2fs_stop_checkpoint(sbi, false);
83a3bfdb5a8a086 Jaegeuk Kim 2018-06-21 1959 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1960 thaw_bdev(sb->s_bdev, sb);
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1961 }
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1962 break;
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1963 case F2FS_GOING_DOWN_METASYNC:
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1964 /* do checkpoint only */
d027c48447c2c2f Chao Yu 2018-01-17 1965 ret = f2fs_sync_fs(sb, 1);
d027c48447c2c2f Chao Yu 2018-01-17 1966 if (ret)
d027c48447c2c2f Chao Yu 2018-01-17 1967 goto out;
38f91ca8c0ea69f Jaegeuk Kim 2016-05-18 1968 f2fs_stop_checkpoint(sbi, false);
83a3bfdb5a8a086 Jaegeuk Kim 2018-06-21 1969 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1970 break;
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1971 case F2FS_GOING_DOWN_NOSYNC:
38f91ca8c0ea69f Jaegeuk Kim 2016-05-18 1972 f2fs_stop_checkpoint(sbi, false);
83a3bfdb5a8a086 Jaegeuk Kim 2018-06-21 1973 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1974 break;
c912a8298c16ef1 Jaegeuk Kim 2015-10-07 1975 case F2FS_GOING_DOWN_METAFLUSH:
4d57b86dd86404f Chao Yu 2018-05-30 1976 f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_META_IO);
38f91ca8c0ea69f Jaegeuk Kim 2016-05-18 1977 f2fs_stop_checkpoint(sbi, false);
83a3bfdb5a8a086 Jaegeuk Kim 2018-06-21 1978 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
c912a8298c16ef1 Jaegeuk Kim 2015-10-07 1979 break;
0cd6d9b0d23416a Jaegeuk Kim 2018-11-28 1980 case F2FS_GOING_DOWN_NEED_FSCK:
0cd6d9b0d23416a Jaegeuk Kim 2018-11-28 1981 set_sbi_flag(sbi, SBI_NEED_FSCK);
db610a640eeeb26 Jaegeuk Kim 2019-01-24 1982 set_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
db610a640eeeb26 Jaegeuk Kim 2019-01-24 1983 set_sbi_flag(sbi, SBI_IS_DIRTY);
0cd6d9b0d23416a Jaegeuk Kim 2018-11-28 1984 /* do checkpoint only */
0cd6d9b0d23416a Jaegeuk Kim 2018-11-28 1985 ret = f2fs_sync_fs(sb, 1);
0cd6d9b0d23416a Jaegeuk Kim 2018-11-28 1986 goto out;
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1987 default:
7fb17fe44b70c85 Chao Yu 2016-05-09 1988 ret = -EINVAL;
7fb17fe44b70c85 Chao Yu 2016-05-09 1989 goto out;
1abff93d01eddaa Jaegeuk Kim 2015-01-08 1990 }
7950e9ac638e845 Chao Yu 2018-01-18 1991
4d57b86dd86404f Chao Yu 2018-05-30 1992 f2fs_stop_gc_thread(sbi);
4d57b86dd86404f Chao Yu 2018-05-30 1993 f2fs_stop_discard_thread(sbi);
7950e9ac638e845 Chao Yu 2018-01-18 1994
4d57b86dd86404f Chao Yu 2018-05-30 1995 f2fs_drop_discard_cmd(sbi);
7950e9ac638e845 Chao Yu 2018-01-18 1996 clear_opt(sbi, DISCARD);
7950e9ac638e845 Chao Yu 2018-01-18 1997
d0239e1bf5204d6 Jaegeuk Kim 2016-01-08 1998 f2fs_update_time(sbi, REQ_TIME);
7fb17fe44b70c85 Chao Yu 2016-05-09 1999 out:
60b2b4ee2bc01dd Sahitya Tummala 2018-05-18 2000 if (in != F2FS_GOING_DOWN_FULLSYNC)
7fb17fe44b70c85 Chao Yu 2016-05-09 2001 mnt_drop_write_file(filp);
559e87c497a820e Chao Yu 2019-02-26 2002
559e87c497a820e Chao Yu 2019-02-26 2003 trace_f2fs_shutdown(sbi, in, ret);
559e87c497a820e Chao Yu 2019-02-26 2004
7fb17fe44b70c85 Chao Yu 2016-05-09 2005 return ret;
1abff93d01eddaa Jaegeuk Kim 2015-01-08 2006 }
1abff93d01eddaa Jaegeuk Kim 2015-01-08 2007
52656e6cf7be695 Jaegeuk Kim 2014-09-24 2008 static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg)
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2009 {
52656e6cf7be695 Jaegeuk Kim 2014-09-24 2010 struct inode *inode = file_inode(filp);
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2011 struct super_block *sb = inode->i_sb;
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2012 struct request_queue *q = bdev_get_queue(sb->s_bdev);
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2013 struct fstrim_range range;
52656e6cf7be695 Jaegeuk Kim 2014-09-24 2014 int ret;
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2015
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2016 if (!capable(CAP_SYS_ADMIN))
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2017 return -EPERM;
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2018
7d20c8abb2edcf9 Chao Yu 2018-09-04 2019 if (!f2fs_hw_support_discard(F2FS_SB(sb)))
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2020 return -EOPNOTSUPP;
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2021
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2022 if (copy_from_user(&range, (struct fstrim_range __user *)arg,
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2023 sizeof(range)))
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2024 return -EFAULT;
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2025
7fb17fe44b70c85 Chao Yu 2016-05-09 2026 ret = mnt_want_write_file(filp);
7fb17fe44b70c85 Chao Yu 2016-05-09 2027 if (ret)
7fb17fe44b70c85 Chao Yu 2016-05-09 2028 return ret;
7fb17fe44b70c85 Chao Yu 2016-05-09 2029
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2030 range.minlen = max((unsigned int)range.minlen,
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2031 q->limits.discard_granularity);
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2032 ret = f2fs_trim_fs(F2FS_SB(sb), &range);
7fb17fe44b70c85 Chao Yu 2016-05-09 2033 mnt_drop_write_file(filp);
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2034 if (ret < 0)
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2035 return ret;
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2036
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2037 if (copy_to_user((struct fstrim_range __user *)arg, &range,
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2038 sizeof(range)))
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2039 return -EFAULT;
d0239e1bf5204d6 Jaegeuk Kim 2016-01-08 2040 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2041 return 0;
4b2fecc84655055 Jaegeuk Kim 2014-09-20 2042 }
52656e6cf7be695 Jaegeuk Kim 2014-09-24 2043
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2044 static bool uuid_is_nonzero(__u8 u[16])
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2045 {
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2046 int i;
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2047
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2048 for (i = 0; i < 16; i++)
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2049 if (u[i])
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2050 return true;
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2051 return false;
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2052 }
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2053
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2054 static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg)
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2055 {
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2056 struct inode *inode = file_inode(filp);
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2057
7beb01f74415c56 Chao Yu 2018-10-24 2058 if (!f2fs_sb_has_encrypt(F2FS_I_SB(inode)))
ead710b7d82dc9e Chao Yu 2017-11-14 2059 return -EOPNOTSUPP;
ead710b7d82dc9e Chao Yu 2017-11-14 2060
d0239e1bf5204d6 Jaegeuk Kim 2016-01-08 2061 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
7fb17fe44b70c85 Chao Yu 2016-05-09 2062
db717d8e26c2d1b Eric Biggers 2016-11-26 2063 return fscrypt_ioctl_set_policy(filp, (const void __user *)arg);
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2064 }
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2065
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2066 static int f2fs_ioc_get_encryption_policy(struct file *filp, unsigned long arg)
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2067 {
7beb01f74415c56 Chao Yu 2018-10-24 2068 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
ead710b7d82dc9e Chao Yu 2017-11-14 2069 return -EOPNOTSUPP;
db717d8e26c2d1b Eric Biggers 2016-11-26 2070 return fscrypt_ioctl_get_policy(filp, (void __user *)arg);
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2071 }
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2072
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2073 static int f2fs_ioc_get_encryption_pwsalt(struct file *filp, unsigned long arg)
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2074 {
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2075 struct inode *inode = file_inode(filp);
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2076 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2077 int err;
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2078
7beb01f74415c56 Chao Yu 2018-10-24 2079 if (!f2fs_sb_has_encrypt(sbi))
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2080 return -EOPNOTSUPP;
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2081
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2082 err = mnt_want_write_file(filp);
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2083 if (err)
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2084 return err;
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2085
846ae671ad368e3 Chao Yu 2018-02-26 2086 down_write(&sbi->sb_lock);
d0d3f1b329b01a9 Chao Yu 2018-02-11 2087
d0d3f1b329b01a9 Chao Yu 2018-02-11 2088 if (uuid_is_nonzero(sbi->raw_super->encrypt_pw_salt))
d0d3f1b329b01a9 Chao Yu 2018-02-11 2089 goto got_it;
d0d3f1b329b01a9 Chao Yu 2018-02-11 2090
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2091 /* update superblock with uuid */
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2092 generate_random_uuid(sbi->raw_super->encrypt_pw_salt);
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2093
c5bda1c8b13ad78 Chao Yu 2015-06-08 2094 err = f2fs_commit_super(sbi, false);
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2095 if (err) {
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2096 /* undo new data */
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2097 memset(sbi->raw_super->encrypt_pw_salt, 0, 16);
d0d3f1b329b01a9 Chao Yu 2018-02-11 2098 goto out_err;
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2099 }
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2100 got_it:
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2101 if (copy_to_user((__u8 __user *)arg, sbi->raw_super->encrypt_pw_salt,
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2102 16))
d0d3f1b329b01a9 Chao Yu 2018-02-11 2103 err = -EFAULT;
d0d3f1b329b01a9 Chao Yu 2018-02-11 2104 out_err:
846ae671ad368e3 Chao Yu 2018-02-26 2105 up_write(&sbi->sb_lock);
d0d3f1b329b01a9 Chao Yu 2018-02-11 2106 mnt_drop_write_file(filp);
d0d3f1b329b01a9 Chao Yu 2018-02-11 2107 return err;
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2108 }
f424f664f0e8949 Jaegeuk Kim 2015-04-20 2109
c1c1b58359d45e1 Chao Yu 2015-07-10 2110 static int f2fs_ioc_gc(struct file *filp, unsigned long arg)
c1c1b58359d45e1 Chao Yu 2015-07-10 2111 {
c1c1b58359d45e1 Chao Yu 2015-07-10 2112 struct inode *inode = file_inode(filp);
c1c1b58359d45e1 Chao Yu 2015-07-10 2113 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
d530d4d8e237f4d Chao Yu 2015-10-05 2114 __u32 sync;
7fb17fe44b70c85 Chao Yu 2016-05-09 2115 int ret;
c1c1b58359d45e1 Chao Yu 2015-07-10 2116
c1c1b58359d45e1 Chao Yu 2015-07-10 2117 if (!capable(CAP_SYS_ADMIN))
c1c1b58359d45e1 Chao Yu 2015-07-10 2118 return -EPERM;
c1c1b58359d45e1 Chao Yu 2015-07-10 2119
d530d4d8e237f4d Chao Yu 2015-10-05 2120 if (get_user(sync, (__u32 __user *)arg))
c1c1b58359d45e1 Chao Yu 2015-07-10 2121 return -EFAULT;
c1c1b58359d45e1 Chao Yu 2015-07-10 2122
d530d4d8e237f4d Chao Yu 2015-10-05 2123 if (f2fs_readonly(sbi->sb))
d530d4d8e237f4d Chao Yu 2015-10-05 2124 return -EROFS;
c1c1b58359d45e1 Chao Yu 2015-07-10 2125
7fb17fe44b70c85 Chao Yu 2016-05-09 2126 ret = mnt_want_write_file(filp);
7fb17fe44b70c85 Chao Yu 2016-05-09 2127 if (ret)
7fb17fe44b70c85 Chao Yu 2016-05-09 2128 return ret;
7fb17fe44b70c85 Chao Yu 2016-05-09 2129
d530d4d8e237f4d Chao Yu 2015-10-05 2130 if (!sync) {
7fb17fe44b70c85 Chao Yu 2016-05-09 2131 if (!mutex_trylock(&sbi->gc_mutex)) {
7fb17fe44b70c85 Chao Yu 2016-05-09 2132 ret = -EBUSY;
7fb17fe44b70c85 Chao Yu 2016-05-09 2133 goto out;
7fb17fe44b70c85 Chao Yu 2016-05-09 2134 }
d530d4d8e237f4d Chao Yu 2015-10-05 2135 } else {
d530d4d8e237f4d Chao Yu 2015-10-05 2136 mutex_lock(&sbi->gc_mutex);
c1c1b58359d45e1 Chao Yu 2015-07-10 2137 }
c1c1b58359d45e1 Chao Yu 2015-07-10 2138
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2139 ret = f2fs_gc(sbi, sync, true, NULL_SEGNO);
7fb17fe44b70c85 Chao Yu 2016-05-09 2140 out:
7fb17fe44b70c85 Chao Yu 2016-05-09 2141 mnt_drop_write_file(filp);
7fb17fe44b70c85 Chao Yu 2016-05-09 2142 return ret;
c1c1b58359d45e1 Chao Yu 2015-07-10 2143 }
c1c1b58359d45e1 Chao Yu 2015-07-10 2144
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2145 static int f2fs_ioc_gc_range(struct file *filp, unsigned long arg)
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2146 {
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2147 struct inode *inode = file_inode(filp);
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2148 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2149 struct f2fs_gc_range range;
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2150 u64 end;
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2151 int ret;
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2152
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2153 if (!capable(CAP_SYS_ADMIN))
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2154 return -EPERM;
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2155
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2156 if (copy_from_user(&range, (struct f2fs_gc_range __user *)arg,
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2157 sizeof(range)))
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2158 return -EFAULT;
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2159
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2160 if (f2fs_readonly(sbi->sb))
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2161 return -EROFS;
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2162
b82f6e347bfb689 Yunlei He 2018-04-24 2163 end = range.start + range.len;
b82f6e347bfb689 Yunlei He 2018-04-24 2164 if (range.start < MAIN_BLKADDR(sbi) || end >= MAX_BLKADDR(sbi)) {
b82f6e347bfb689 Yunlei He 2018-04-24 2165 return -EINVAL;
b82f6e347bfb689 Yunlei He 2018-04-24 2166 }
b82f6e347bfb689 Yunlei He 2018-04-24 2167
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2168 ret = mnt_want_write_file(filp);
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2169 if (ret)
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2170 return ret;
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2171
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2172 do_more:
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2173 if (!range.sync) {
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2174 if (!mutex_trylock(&sbi->gc_mutex)) {
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2175 ret = -EBUSY;
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2176 goto out;
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2177 }
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2178 } else {
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2179 mutex_lock(&sbi->gc_mutex);
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2180 }
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2181
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2182 ret = f2fs_gc(sbi, range.sync, true, GET_SEGNO(sbi, range.start));
67b0e42b768c9dd Yunlong Song 2018-10-30 2183 range.start += BLKS_PER_SEC(sbi);
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2184 if (range.start <= end)
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2185 goto do_more;
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2186 out:
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2187 mnt_drop_write_file(filp);
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2188 return ret;
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2189 }
34dc77ad7436870 Jaegeuk Kim 2017-06-15 2190
059c0648c6aeb25 Chao Yu 2018-07-17 2191 static int f2fs_ioc_write_checkpoint(struct file *filp, unsigned long arg)
456b88e4d15de83 Chao Yu 2015-10-05 2192 {
456b88e4d15de83 Chao Yu 2015-10-05 2193 struct inode *inode = file_inode(filp);
456b88e4d15de83 Chao Yu 2015-10-05 2194 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
7fb17fe44b70c85 Chao Yu 2016-05-09 2195 int ret;
456b88e4d15de83 Chao Yu 2015-10-05 2196
456b88e4d15de83 Chao Yu 2015-10-05 2197 if (!capable(CAP_SYS_ADMIN))
456b88e4d15de83 Chao Yu 2015-10-05 2198 return -EPERM;
456b88e4d15de83 Chao Yu 2015-10-05 2199
456b88e4d15de83 Chao Yu 2015-10-05 2200 if (f2fs_readonly(sbi->sb))
456b88e4d15de83 Chao Yu 2015-10-05 2201 return -EROFS;
456b88e4d15de83 Chao Yu 2015-10-05 2202
4354994f097d068 Daniel Rosenberg 2018-08-20 2203 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
4354994f097d068 Daniel Rosenberg 2018-08-20 2204 f2fs_msg(sbi->sb, KERN_INFO,
4354994f097d068 Daniel Rosenberg 2018-08-20 2205 "Skipping Checkpoint. Checkpoints currently disabled.");
4354994f097d068 Daniel Rosenberg 2018-08-20 2206 return -EINVAL;
4354994f097d068 Daniel Rosenberg 2018-08-20 2207 }
4354994f097d068 Daniel Rosenberg 2018-08-20 2208
7fb17fe44b70c85 Chao Yu 2016-05-09 2209 ret = mnt_want_write_file(filp);
7fb17fe44b70c85 Chao Yu 2016-05-09 2210 if (ret)
7fb17fe44b70c85 Chao Yu 2016-05-09 2211 return ret;
7fb17fe44b70c85 Chao Yu 2016-05-09 2212
7fb17fe44b70c85 Chao Yu 2016-05-09 2213 ret = f2fs_sync_fs(sbi->sb, 1);
7fb17fe44b70c85 Chao Yu 2016-05-09 2214
7fb17fe44b70c85 Chao Yu 2016-05-09 2215 mnt_drop_write_file(filp);
7fb17fe44b70c85 Chao Yu 2016-05-09 2216 return ret;
456b88e4d15de83 Chao Yu 2015-10-05 2217 }
456b88e4d15de83 Chao Yu 2015-10-05 2218
d323d005ac4a2d4 Chao Yu 2015-10-27 2219 static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
d323d005ac4a2d4 Chao Yu 2015-10-27 2220 struct file *filp,
d323d005ac4a2d4 Chao Yu 2015-10-27 2221 struct f2fs_defragment *range)
d323d005ac4a2d4 Chao Yu 2015-10-27 2222 {
d323d005ac4a2d4 Chao Yu 2015-10-27 2223 struct inode *inode = file_inode(filp);
f3d98e74fcddb23 Chao Yu 2018-01-10 2224 struct f2fs_map_blocks map = { .m_next_extent = NULL,
f4f0b6777db4e7a Jia Zhu 2018-11-20 2225 .m_seg_type = NO_CHECK_TYPE ,
f4f0b6777db4e7a Jia Zhu 2018-11-20 2226 .m_may_create = false };
e15882b6c6caff4 Hou Pengyang 2017-02-23 2227 struct extent_info ei = {0, 0, 0};
f3d98e74fcddb23 Chao Yu 2018-01-10 2228 pgoff_t pg_start, pg_end, next_pgofs;
3519e3f992995d4 Chao Yu 2015-12-01 2229 unsigned int blk_per_seg = sbi->blocks_per_seg;
d323d005ac4a2d4 Chao Yu 2015-10-27 2230 unsigned int total = 0, sec_num;
d323d005ac4a2d4 Chao Yu 2015-10-27 2231 block_t blk_end = 0;
d323d005ac4a2d4 Chao Yu 2015-10-27 2232 bool fragmented = false;
d323d005ac4a2d4 Chao Yu 2015-10-27 2233 int err;
d323d005ac4a2d4 Chao Yu 2015-10-27 2234
d323d005ac4a2d4 Chao Yu 2015-10-27 2235 /* if in-place-update policy is enabled, don't waste time here */
4d57b86dd86404f Chao Yu 2018-05-30 2236 if (f2fs_should_update_inplace(inode, NULL))
d323d005ac4a2d4 Chao Yu 2015-10-27 2237 return -EINVAL;
d323d005ac4a2d4 Chao Yu 2015-10-27 2238
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 2239 pg_start = range->start >> PAGE_SHIFT;
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 2240 pg_end = (range->start + range->len) >> PAGE_SHIFT;
d323d005ac4a2d4 Chao Yu 2015-10-27 2241
2c4db1a6f6b42e2 Jaegeuk Kim 2016-01-07 2242 f2fs_balance_fs(sbi, true);
d323d005ac4a2d4 Chao Yu 2015-10-27 2243
5955102c9984fa0 Al Viro 2016-01-22 2244 inode_lock(inode);
d323d005ac4a2d4 Chao Yu 2015-10-27 2245
d323d005ac4a2d4 Chao Yu 2015-10-27 2246 /* writeback all dirty pages in the range */
d323d005ac4a2d4 Chao Yu 2015-10-27 2247 err = filemap_write_and_wait_range(inode->i_mapping, range->start,
d8fe4f0e74cb27e Fan Li 2015-12-14 2248 range->start + range->len - 1);
d323d005ac4a2d4 Chao Yu 2015-10-27 2249 if (err)
d323d005ac4a2d4 Chao Yu 2015-10-27 2250 goto out;
d323d005ac4a2d4 Chao Yu 2015-10-27 2251
d323d005ac4a2d4 Chao Yu 2015-10-27 2252 /*
d323d005ac4a2d4 Chao Yu 2015-10-27 2253 * lookup mapping info in extent cache, skip defragmenting if physical
d323d005ac4a2d4 Chao Yu 2015-10-27 2254 * block addresses are continuous.
d323d005ac4a2d4 Chao Yu 2015-10-27 2255 */
d323d005ac4a2d4 Chao Yu 2015-10-27 2256 if (f2fs_lookup_extent_cache(inode, pg_start, &ei)) {
d323d005ac4a2d4 Chao Yu 2015-10-27 2257 if (ei.fofs + ei.len >= pg_end)
d323d005ac4a2d4 Chao Yu 2015-10-27 2258 goto out;
d323d005ac4a2d4 Chao Yu 2015-10-27 2259 }
d323d005ac4a2d4 Chao Yu 2015-10-27 2260
d323d005ac4a2d4 Chao Yu 2015-10-27 2261 map.m_lblk = pg_start;
f3d98e74fcddb23 Chao Yu 2018-01-10 2262 map.m_next_pgofs = &next_pgofs;
d323d005ac4a2d4 Chao Yu 2015-10-27 2263
d323d005ac4a2d4 Chao Yu 2015-10-27 2264 /*
d323d005ac4a2d4 Chao Yu 2015-10-27 2265 * lookup mapping info in dnode page cache, skip defragmenting if all
d323d005ac4a2d4 Chao Yu 2015-10-27 2266 * physical block addresses are continuous even if there are hole(s)
d323d005ac4a2d4 Chao Yu 2015-10-27 2267 * in logical blocks.
d323d005ac4a2d4 Chao Yu 2015-10-27 2268 */
d323d005ac4a2d4 Chao Yu 2015-10-27 2269 while (map.m_lblk < pg_end) {
a1c1e9b74ff3801 Fan Li 2015-12-15 2270 map.m_len = pg_end - map.m_lblk;
f2220c7f155c993 Qiuyang Sun 2017-08-09 2271 err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DEFAULT);
d323d005ac4a2d4 Chao Yu 2015-10-27 2272 if (err)
d323d005ac4a2d4 Chao Yu 2015-10-27 2273 goto out;
d323d005ac4a2d4 Chao Yu 2015-10-27 2274
d323d005ac4a2d4 Chao Yu 2015-10-27 2275 if (!(map.m_flags & F2FS_MAP_FLAGS)) {
f3d98e74fcddb23 Chao Yu 2018-01-10 2276 map.m_lblk = next_pgofs;
d323d005ac4a2d4 Chao Yu 2015-10-27 2277 continue;
d323d005ac4a2d4 Chao Yu 2015-10-27 2278 }
d323d005ac4a2d4 Chao Yu 2015-10-27 2279
25a912e51af7c07 Chao Yu 2018-01-10 2280 if (blk_end && blk_end != map.m_pblk)
d323d005ac4a2d4 Chao Yu 2015-10-27 2281 fragmented = true;
25a912e51af7c07 Chao Yu 2018-01-10 2282
25a912e51af7c07 Chao Yu 2018-01-10 2283 /* record total count of block that we're going to move */
25a912e51af7c07 Chao Yu 2018-01-10 2284 total += map.m_len;
25a912e51af7c07 Chao Yu 2018-01-10 2285
d323d005ac4a2d4 Chao Yu 2015-10-27 2286 blk_end = map.m_pblk + map.m_len;
d323d005ac4a2d4 Chao Yu 2015-10-27 2287
d323d005ac4a2d4 Chao Yu 2015-10-27 2288 map.m_lblk += map.m_len;
d323d005ac4a2d4 Chao Yu 2015-10-27 2289 }
d323d005ac4a2d4 Chao Yu 2015-10-27 2290
d323d005ac4a2d4 Chao Yu 2015-10-27 2291 if (!fragmented)
d323d005ac4a2d4 Chao Yu 2015-10-27 2292 goto out;
d323d005ac4a2d4 Chao Yu 2015-10-27 2293
25a912e51af7c07 Chao Yu 2018-01-10 2294 sec_num = (total + BLKS_PER_SEC(sbi) - 1) / BLKS_PER_SEC(sbi);
d323d005ac4a2d4 Chao Yu 2015-10-27 2295
d323d005ac4a2d4 Chao Yu 2015-10-27 2296 /*
d323d005ac4a2d4 Chao Yu 2015-10-27 2297 * make sure there are enough free section for LFS allocation, this can
d323d005ac4a2d4 Chao Yu 2015-10-27 2298 * avoid defragment running in SSR mode when free section are allocated
d323d005ac4a2d4 Chao Yu 2015-10-27 2299 * intensively
d323d005ac4a2d4 Chao Yu 2015-10-27 2300 */
7f3037a5ec0672e Jaegeuk Kim 2016-09-01 2301 if (has_not_enough_free_secs(sbi, 0, sec_num)) {
d323d005ac4a2d4 Chao Yu 2015-10-27 2302 err = -EAGAIN;
d323d005ac4a2d4 Chao Yu 2015-10-27 2303 goto out;
d323d005ac4a2d4 Chao Yu 2015-10-27 2304 }
d323d005ac4a2d4 Chao Yu 2015-10-27 2305
25a912e51af7c07 Chao Yu 2018-01-10 2306 map.m_lblk = pg_start;
25a912e51af7c07 Chao Yu 2018-01-10 2307 map.m_len = pg_end - pg_start;
25a912e51af7c07 Chao Yu 2018-01-10 2308 total = 0;
25a912e51af7c07 Chao Yu 2018-01-10 2309
d323d005ac4a2d4 Chao Yu 2015-10-27 2310 while (map.m_lblk < pg_end) {
d323d005ac4a2d4 Chao Yu 2015-10-27 2311 pgoff_t idx;
d323d005ac4a2d4 Chao Yu 2015-10-27 2312 int cnt = 0;
d323d005ac4a2d4 Chao Yu 2015-10-27 2313
d323d005ac4a2d4 Chao Yu 2015-10-27 2314 do_map:
a1c1e9b74ff3801 Fan Li 2015-12-15 2315 map.m_len = pg_end - map.m_lblk;
f2220c7f155c993 Qiuyang Sun 2017-08-09 2316 err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DEFAULT);
d323d005ac4a2d4 Chao Yu 2015-10-27 2317 if (err)
d323d005ac4a2d4 Chao Yu 2015-10-27 2318 goto clear_out;
d323d005ac4a2d4 Chao Yu 2015-10-27 2319
d323d005ac4a2d4 Chao Yu 2015-10-27 2320 if (!(map.m_flags & F2FS_MAP_FLAGS)) {
f3d98e74fcddb23 Chao Yu 2018-01-10 2321 map.m_lblk = next_pgofs;
d323d005ac4a2d4 Chao Yu 2015-10-27 2322 continue;
d323d005ac4a2d4 Chao Yu 2015-10-27 2323 }
d323d005ac4a2d4 Chao Yu 2015-10-27 2324
91942321e4c9f84 Jaegeuk Kim 2016-05-20 2325 set_inode_flag(inode, FI_DO_DEFRAG);
d323d005ac4a2d4 Chao Yu 2015-10-27 2326
d323d005ac4a2d4 Chao Yu 2015-10-27 2327 idx = map.m_lblk;
d323d005ac4a2d4 Chao Yu 2015-10-27 2328 while (idx < map.m_lblk + map.m_len && cnt < blk_per_seg) {
d323d005ac4a2d4 Chao Yu 2015-10-27 2329 struct page *page;
d323d005ac4a2d4 Chao Yu 2015-10-27 2330
4d57b86dd86404f Chao Yu 2018-05-30 2331 page = f2fs_get_lock_data_page(inode, idx, true);
d323d005ac4a2d4 Chao Yu 2015-10-27 2332 if (IS_ERR(page)) {
d323d005ac4a2d4 Chao Yu 2015-10-27 2333 err = PTR_ERR(page);
d323d005ac4a2d4 Chao Yu 2015-10-27 2334 goto clear_out;
d323d005ac4a2d4 Chao Yu 2015-10-27 2335 }
d323d005ac4a2d4 Chao Yu 2015-10-27 2336
d323d005ac4a2d4 Chao Yu 2015-10-27 2337 set_page_dirty(page);
d323d005ac4a2d4 Chao Yu 2015-10-27 2338 f2fs_put_page(page, 1);
d323d005ac4a2d4 Chao Yu 2015-10-27 2339
d323d005ac4a2d4 Chao Yu 2015-10-27 2340 idx++;
d323d005ac4a2d4 Chao Yu 2015-10-27 2341 cnt++;
d323d005ac4a2d4 Chao Yu 2015-10-27 2342 total++;
d323d005ac4a2d4 Chao Yu 2015-10-27 2343 }
d323d005ac4a2d4 Chao Yu 2015-10-27 2344
d323d005ac4a2d4 Chao Yu 2015-10-27 2345 map.m_lblk = idx;
d323d005ac4a2d4 Chao Yu 2015-10-27 2346
d323d005ac4a2d4 Chao Yu 2015-10-27 2347 if (idx < pg_end && cnt < blk_per_seg)
d323d005ac4a2d4 Chao Yu 2015-10-27 2348 goto do_map;
d323d005ac4a2d4 Chao Yu 2015-10-27 2349
91942321e4c9f84 Jaegeuk Kim 2016-05-20 2350 clear_inode_flag(inode, FI_DO_DEFRAG);
d323d005ac4a2d4 Chao Yu 2015-10-27 2351
d323d005ac4a2d4 Chao Yu 2015-10-27 2352 err = filemap_fdatawrite(inode->i_mapping);
d323d005ac4a2d4 Chao Yu 2015-10-27 2353 if (err)
d323d005ac4a2d4 Chao Yu 2015-10-27 2354 goto out;
d323d005ac4a2d4 Chao Yu 2015-10-27 2355 }
d323d005ac4a2d4 Chao Yu 2015-10-27 2356 clear_out:
91942321e4c9f84 Jaegeuk Kim 2016-05-20 2357 clear_inode_flag(inode, FI_DO_DEFRAG);
d323d005ac4a2d4 Chao Yu 2015-10-27 2358 out:
5955102c9984fa0 Al Viro 2016-01-22 2359 inode_unlock(inode);
d323d005ac4a2d4 Chao Yu 2015-10-27 2360 if (!err)
09cbfeaf1a5a67b Kirill A. Shutemov 2016-04-01 2361 range->len = (u64)total << PAGE_SHIFT;
d323d005ac4a2d4 Chao Yu 2015-10-27 2362 return err;
d323d005ac4a2d4 Chao Yu 2015-10-27 2363 }
d323d005ac4a2d4 Chao Yu 2015-10-27 2364
d323d005ac4a2d4 Chao Yu 2015-10-27 2365 static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)
d323d005ac4a2d4 Chao Yu 2015-10-27 2366 {
d323d005ac4a2d4 Chao Yu 2015-10-27 2367 struct inode *inode = file_inode(filp);
d323d005ac4a2d4 Chao Yu 2015-10-27 2368 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
d323d005ac4a2d4 Chao Yu 2015-10-27 2369 struct f2fs_defragment range;
d323d005ac4a2d4 Chao Yu 2015-10-27 2370 int err;
d323d005ac4a2d4 Chao Yu 2015-10-27 2371
d323d005ac4a2d4 Chao Yu 2015-10-27 2372 if (!capable(CAP_SYS_ADMIN))
d323d005ac4a2d4 Chao Yu 2015-10-27 2373 return -EPERM;
d323d005ac4a2d4 Chao Yu 2015-10-27 2374
7eab0c0df8d1a8c Hou Pengyang 2017-04-25 2375 if (!S_ISREG(inode->i_mode) || f2fs_is_atomic_file(inode))
d323d005ac4a2d4 Chao Yu 2015-10-27 2376 return -EINVAL;
d323d005ac4a2d4 Chao Yu 2015-10-27 2377
d7563861722a471 Kinglong Mee 2017-03-10 2378 if (f2fs_readonly(sbi->sb))
d7563861722a471 Kinglong Mee 2017-03-10 2379 return -EROFS;
d323d005ac4a2d4 Chao Yu 2015-10-27 2380
d323d005ac4a2d4 Chao Yu 2015-10-27 2381 if (copy_from_user(&range, (struct f2fs_defragment __user *)arg,
d7563861722a471 Kinglong Mee 2017-03-10 2382 sizeof(range)))
d7563861722a471 Kinglong Mee 2017-03-10 2383 return -EFAULT;
d323d005ac4a2d4 Chao Yu 2015-10-27 2384
d323d005ac4a2d4 Chao Yu 2015-10-27 2385 /* verify alignment of offset & size */
d7563861722a471 Kinglong Mee 2017-03-10 2386 if (range.start & (F2FS_BLKSIZE - 1) || range.len & (F2FS_BLKSIZE - 1))
d7563861722a471 Kinglong Mee 2017-03-10 2387 return -EINVAL;
d323d005ac4a2d4 Chao Yu 2015-10-27 2388
1941d7bcb474aa3 Sheng Yong 2017-03-08 2389 if (unlikely((range.start + range.len) >> PAGE_SHIFT >
d7563861722a471 Kinglong Mee 2017-03-10 2390 sbi->max_file_blocks))
d7563861722a471 Kinglong Mee 2017-03-10 2391 return -EINVAL;
d7563861722a471 Kinglong Mee 2017-03-10 2392
d7563861722a471 Kinglong Mee 2017-03-10 2393 err = mnt_want_write_file(filp);
d7563861722a471 Kinglong Mee 2017-03-10 2394 if (err)
d7563861722a471 Kinglong Mee 2017-03-10 2395 return err;
1941d7bcb474aa3 Sheng Yong 2017-03-08 2396
d323d005ac4a2d4 Chao Yu 2015-10-27 2397 err = f2fs_defragment_range(sbi, filp, &range);
d7563861722a471 Kinglong Mee 2017-03-10 2398 mnt_drop_write_file(filp);
d7563861722a471 Kinglong Mee 2017-03-10 2399
d0239e1bf5204d6 Jaegeuk Kim 2016-01-08 2400 f2fs_update_time(sbi, REQ_TIME);
d323d005ac4a2d4 Chao Yu 2015-10-27 2401 if (err < 0)
d7563861722a471 Kinglong Mee 2017-03-10 2402 return err;
d323d005ac4a2d4 Chao Yu 2015-10-27 2403
d323d005ac4a2d4 Chao Yu 2015-10-27 2404 if (copy_to_user((struct f2fs_defragment __user *)arg, &range,
d323d005ac4a2d4 Chao Yu 2015-10-27 2405 sizeof(range)))
d7563861722a471 Kinglong Mee 2017-03-10 2406 return -EFAULT;
d7563861722a471 Kinglong Mee 2017-03-10 2407
d7563861722a471 Kinglong Mee 2017-03-10 2408 return 0;
d323d005ac4a2d4 Chao Yu 2015-10-27 2409 }
d323d005ac4a2d4 Chao Yu 2015-10-27 2410
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2411 static int f2fs_move_file_range(struct file *file_in, loff_t pos_in,
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2412 struct file *file_out, loff_t pos_out, size_t len)
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2413 {
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2414 struct inode *src = file_inode(file_in);
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2415 struct inode *dst = file_inode(file_out);
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2416 struct f2fs_sb_info *sbi = F2FS_I_SB(src);
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2417 size_t olen = len, dst_max_i_size = 0;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2418 size_t dst_osize;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2419 int ret;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2420
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2421 if (file_in->f_path.mnt != file_out->f_path.mnt ||
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2422 src->i_sb != dst->i_sb)
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2423 return -EXDEV;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2424
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2425 if (unlikely(f2fs_readonly(src->i_sb)))
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2426 return -EROFS;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2427
fe8494bfc8c2914 Chao Yu 2016-08-04 2428 if (!S_ISREG(src->i_mode) || !S_ISREG(dst->i_mode))
fe8494bfc8c2914 Chao Yu 2016-08-04 2429 return -EINVAL;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2430
62230e0d702f613 Chandan Rajendra 2018-12-12 2431 if (IS_ENCRYPTED(src) || IS_ENCRYPTED(dst))
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2432 return -EOPNOTSUPP;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2433
d95fd91c1ac1f55 Fan Li 2016-09-13 2434 if (src == dst) {
d95fd91c1ac1f55 Fan Li 2016-09-13 2435 if (pos_in == pos_out)
d95fd91c1ac1f55 Fan Li 2016-09-13 2436 return 0;
d95fd91c1ac1f55 Fan Li 2016-09-13 2437 if (pos_out > pos_in && pos_out < pos_in + len)
d95fd91c1ac1f55 Fan Li 2016-09-13 2438 return -EINVAL;
d95fd91c1ac1f55 Fan Li 2016-09-13 2439 }
d95fd91c1ac1f55 Fan Li 2016-09-13 2440
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2441 inode_lock(src);
20a3d61d46e1fb4 Chao Yu 2016-08-04 2442 if (src != dst) {
20a3d61d46e1fb4 Chao Yu 2016-08-04 2443 ret = -EBUSY;
bb06664a534ba48 Chao Yu 2017-11-03 2444 if (!inode_trylock(dst))
bb06664a534ba48 Chao Yu 2017-11-03 2445 goto out;
20a3d61d46e1fb4 Chao Yu 2016-08-04 2446 }
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2447
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2448 ret = -EINVAL;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2449 if (pos_in + len > src->i_size || pos_in + len < pos_in)
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2450 goto out_unlock;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2451 if (len == 0)
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2452 olen = len = src->i_size - pos_in;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2453 if (pos_in + len == src->i_size)
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2454 len = ALIGN(src->i_size, F2FS_BLKSIZE) - pos_in;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2455 if (len == 0) {
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2456 ret = 0;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2457 goto out_unlock;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2458 }
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2459
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2460 dst_osize = dst->i_size;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2461 if (pos_out + olen > dst->i_size)
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2462 dst_max_i_size = pos_out + olen;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2463
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2464 /* verify the end result is block aligned */
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2465 if (!IS_ALIGNED(pos_in, F2FS_BLKSIZE) ||
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2466 !IS_ALIGNED(pos_in + len, F2FS_BLKSIZE) ||
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2467 !IS_ALIGNED(pos_out, F2FS_BLKSIZE))
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2468 goto out_unlock;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2469
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2470 ret = f2fs_convert_inline_inode(src);
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2471 if (ret)
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2472 goto out_unlock;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2473
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2474 ret = f2fs_convert_inline_inode(dst);
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2475 if (ret)
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2476 goto out_unlock;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2477
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2478 /* write out all dirty pages from offset */
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2479 ret = filemap_write_and_wait_range(src->i_mapping,
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2480 pos_in, pos_in + len);
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2481 if (ret)
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2482 goto out_unlock;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2483
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2484 ret = filemap_write_and_wait_range(dst->i_mapping,
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2485 pos_out, pos_out + len);
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2486 if (ret)
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2487 goto out_unlock;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2488
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2489 f2fs_balance_fs(sbi, true);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 2490
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 2491 down_write(&F2FS_I(src)->i_gc_rwsem[WRITE]);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 2492 if (src != dst) {
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 2493 ret = -EBUSY;
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 2494 if (!down_write_trylock(&F2FS_I(dst)->i_gc_rwsem[WRITE]))
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 2495 goto out_src;
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 2496 }
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 2497
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2498 f2fs_lock_op(sbi);
61e4da1172d18f5 Fan Li 2016-09-10 2499 ret = __exchange_data_block(src, dst, pos_in >> F2FS_BLKSIZE_BITS,
61e4da1172d18f5 Fan Li 2016-09-10 2500 pos_out >> F2FS_BLKSIZE_BITS,
61e4da1172d18f5 Fan Li 2016-09-10 2501 len >> F2FS_BLKSIZE_BITS, false);
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2502
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2503 if (!ret) {
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2504 if (dst_max_i_size)
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2505 f2fs_i_size_write(dst, dst_max_i_size);
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2506 else if (dst_osize != dst->i_size)
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2507 f2fs_i_size_write(dst, dst_osize);
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2508 }
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2509 f2fs_unlock_op(sbi);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 2510
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 2511 if (src != dst)
b2532c694033fb6 Chao Yu 2018-04-24 2512 up_write(&F2FS_I(dst)->i_gc_rwsem[WRITE]);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 2513 out_src:
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 2514 up_write(&F2FS_I(src)->i_gc_rwsem[WRITE]);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 2515 out_unlock:
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 2516 if (src != dst)
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2517 inode_unlock(dst);
20a3d61d46e1fb4 Chao Yu 2016-08-04 2518 out:
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2519 inode_unlock(src);
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2520 return ret;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2521 }
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2522
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2523 static int f2fs_ioc_move_range(struct file *filp, unsigned long arg)
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2524 {
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2525 struct f2fs_move_range range;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2526 struct fd dst;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2527 int err;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2528
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2529 if (!(filp->f_mode & FMODE_READ) ||
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2530 !(filp->f_mode & FMODE_WRITE))
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2531 return -EBADF;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2532
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2533 if (copy_from_user(&range, (struct f2fs_move_range __user *)arg,
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2534 sizeof(range)))
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2535 return -EFAULT;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2536
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2537 dst = fdget(range.dst_fd);
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2538 if (!dst.file)
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2539 return -EBADF;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2540
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2541 if (!(dst.file->f_mode & FMODE_WRITE)) {
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2542 err = -EBADF;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2543 goto err_out;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2544 }
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2545
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2546 err = mnt_want_write_file(filp);
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2547 if (err)
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2548 goto err_out;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2549
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2550 err = f2fs_move_file_range(filp, range.pos_in, dst.file,
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2551 range.pos_out, range.len);
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2552
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2553 mnt_drop_write_file(filp);
3cecfa5f6700c07 Kinglong Mee 2017-03-10 2554 if (err)
3cecfa5f6700c07 Kinglong Mee 2017-03-10 2555 goto err_out;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2556
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2557 if (copy_to_user((struct f2fs_move_range __user *)arg,
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2558 &range, sizeof(range)))
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2559 err = -EFAULT;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2560 err_out:
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2561 fdput(dst);
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2562 return err;
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2563 }
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 2564
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2565 static int f2fs_ioc_flush_device(struct file *filp, unsigned long arg)
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2566 {
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2567 struct inode *inode = file_inode(filp);
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2568 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2569 struct sit_info *sm = SIT_I(sbi);
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2570 unsigned int start_segno = 0, end_segno = 0;
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2571 unsigned int dev_start_segno = 0, dev_end_segno = 0;
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2572 struct f2fs_flush_device range;
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2573 int ret;
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2574
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2575 if (!capable(CAP_SYS_ADMIN))
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2576 return -EPERM;
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2577
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2578 if (f2fs_readonly(sbi->sb))
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2579 return -EROFS;
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2580
4354994f097d068 Daniel Rosenberg 2018-08-20 2581 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
4354994f097d068 Daniel Rosenberg 2018-08-20 2582 return -EINVAL;
4354994f097d068 Daniel Rosenberg 2018-08-20 2583
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2584 if (copy_from_user(&range, (struct f2fs_flush_device __user *)arg,
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2585 sizeof(range)))
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2586 return -EFAULT;
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2587
0916878da355650 Damien Le Moal 2019-03-16 2588 if (!f2fs_is_multi_device(sbi) || sbi->s_ndevs - 1 <= range.dev_num ||
2c70c5e3874e8cf Chao Yu 2018-10-24 2589 __is_large_section(sbi)) {
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2590 f2fs_msg(sbi->sb, KERN_WARNING,
bda5239738fac6a Chao Yu 2019-04-15 2591 "Can't flush %u in %d for segs_per_sec %u != 1",
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2592 range.dev_num, sbi->s_ndevs,
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2593 sbi->segs_per_sec);
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2594 return -EINVAL;
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2595 }
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2596
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2597 ret = mnt_want_write_file(filp);
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2598 if (ret)
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2599 return ret;
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2600
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2601 if (range.dev_num != 0)
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2602 dev_start_segno = GET_SEGNO(sbi, FDEV(range.dev_num).start_blk);
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2603 dev_end_segno = GET_SEGNO(sbi, FDEV(range.dev_num).end_blk);
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2604
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2605 start_segno = sm->last_victim[FLUSH_DEVICE];
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2606 if (start_segno < dev_start_segno || start_segno >= dev_end_segno)
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2607 start_segno = dev_start_segno;
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2608 end_segno = min(start_segno + range.segments, dev_end_segno);
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2609
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2610 while (start_segno < end_segno) {
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2611 if (!mutex_trylock(&sbi->gc_mutex)) {
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2612 ret = -EBUSY;
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2613 goto out;
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2614 }
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2615 sm->last_victim[GC_CB] = end_segno + 1;
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2616 sm->last_victim[GC_GREEDY] = end_segno + 1;
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2617 sm->last_victim[ALLOC_NEXT] = end_segno + 1;
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2618 ret = f2fs_gc(sbi, true, true, start_segno);
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2619 if (ret == -EAGAIN)
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2620 ret = 0;
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2621 else if (ret < 0)
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2622 break;
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2623 start_segno++;
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2624 }
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2625 out:
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2626 mnt_drop_write_file(filp);
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2627 return ret;
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2628 }
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2629
e65ef20781cbfcb Jaegeuk Kim 2017-07-21 2630 static int f2fs_ioc_get_features(struct file *filp, unsigned long arg)
e65ef20781cbfcb Jaegeuk Kim 2017-07-21 2631 {
e65ef20781cbfcb Jaegeuk Kim 2017-07-21 2632 struct inode *inode = file_inode(filp);
e65ef20781cbfcb Jaegeuk Kim 2017-07-21 2633 u32 sb_feature = le32_to_cpu(F2FS_I_SB(inode)->raw_super->feature);
e65ef20781cbfcb Jaegeuk Kim 2017-07-21 2634
e65ef20781cbfcb Jaegeuk Kim 2017-07-21 2635 /* Must validate to set it with SQLite behavior in Android. */
e65ef20781cbfcb Jaegeuk Kim 2017-07-21 2636 sb_feature |= F2FS_FEATURE_ATOMIC_WRITE;
e65ef20781cbfcb Jaegeuk Kim 2017-07-21 2637
e65ef20781cbfcb Jaegeuk Kim 2017-07-21 2638 return put_user(sb_feature, (u32 __user *)arg);
e65ef20781cbfcb Jaegeuk Kim 2017-07-21 2639 }
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2640
2c1d03056991286 Chao Yu 2017-07-29 2641 #ifdef CONFIG_QUOTA
78130819695f17f Chao Yu 2018-09-25 2642 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid)
78130819695f17f Chao Yu 2018-09-25 2643 {
78130819695f17f Chao Yu 2018-09-25 2644 struct dquot *transfer_to[MAXQUOTAS] = {};
78130819695f17f Chao Yu 2018-09-25 2645 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
78130819695f17f Chao Yu 2018-09-25 2646 struct super_block *sb = sbi->sb;
78130819695f17f Chao Yu 2018-09-25 2647 int err = 0;
78130819695f17f Chao Yu 2018-09-25 2648
78130819695f17f Chao Yu 2018-09-25 2649 transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid));
78130819695f17f Chao Yu 2018-09-25 2650 if (!IS_ERR(transfer_to[PRJQUOTA])) {
78130819695f17f Chao Yu 2018-09-25 2651 err = __dquot_transfer(inode, transfer_to);
78130819695f17f Chao Yu 2018-09-25 2652 if (err)
78130819695f17f Chao Yu 2018-09-25 2653 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
78130819695f17f Chao Yu 2018-09-25 2654 dqput(transfer_to[PRJQUOTA]);
78130819695f17f Chao Yu 2018-09-25 2655 }
78130819695f17f Chao Yu 2018-09-25 2656 return err;
78130819695f17f Chao Yu 2018-09-25 2657 }
78130819695f17f Chao Yu 2018-09-25 2658
2c1d03056991286 Chao Yu 2017-07-29 2659 static int f2fs_ioc_setproject(struct file *filp, __u32 projid)
2c1d03056991286 Chao Yu 2017-07-29 2660 {
2c1d03056991286 Chao Yu 2017-07-29 2661 struct inode *inode = file_inode(filp);
2c1d03056991286 Chao Yu 2017-07-29 2662 struct f2fs_inode_info *fi = F2FS_I(inode);
2c1d03056991286 Chao Yu 2017-07-29 2663 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2c1d03056991286 Chao Yu 2017-07-29 2664 struct page *ipage;
2c1d03056991286 Chao Yu 2017-07-29 2665 kprojid_t kprojid;
2c1d03056991286 Chao Yu 2017-07-29 2666 int err;
2c1d03056991286 Chao Yu 2017-07-29 2667
7beb01f74415c56 Chao Yu 2018-10-24 2668 if (!f2fs_sb_has_project_quota(sbi)) {
2c1d03056991286 Chao Yu 2017-07-29 2669 if (projid != F2FS_DEF_PROJID)
2c1d03056991286 Chao Yu 2017-07-29 2670 return -EOPNOTSUPP;
2c1d03056991286 Chao Yu 2017-07-29 2671 else
2c1d03056991286 Chao Yu 2017-07-29 2672 return 0;
2c1d03056991286 Chao Yu 2017-07-29 2673 }
2c1d03056991286 Chao Yu 2017-07-29 2674
2c1d03056991286 Chao Yu 2017-07-29 2675 if (!f2fs_has_extra_attr(inode))
2c1d03056991286 Chao Yu 2017-07-29 2676 return -EOPNOTSUPP;
2c1d03056991286 Chao Yu 2017-07-29 2677
2c1d03056991286 Chao Yu 2017-07-29 2678 kprojid = make_kprojid(&init_user_ns, (projid_t)projid);
2c1d03056991286 Chao Yu 2017-07-29 2679
2c1d03056991286 Chao Yu 2017-07-29 2680 if (projid_eq(kprojid, F2FS_I(inode)->i_projid))
2c1d03056991286 Chao Yu 2017-07-29 2681 return 0;
2c1d03056991286 Chao Yu 2017-07-29 2682
2c1d03056991286 Chao Yu 2017-07-29 2683 err = -EPERM;
2c1d03056991286 Chao Yu 2017-07-29 2684 /* Is it quota file? Do not allow user to mess with it */
2c1d03056991286 Chao Yu 2017-07-29 2685 if (IS_NOQUOTA(inode))
c8e927579e00a18 Wang Shilong 2018-09-11 2686 return err;
2c1d03056991286 Chao Yu 2017-07-29 2687
4d57b86dd86404f Chao Yu 2018-05-30 2688 ipage = f2fs_get_node_page(sbi, inode->i_ino);
c8e927579e00a18 Wang Shilong 2018-09-11 2689 if (IS_ERR(ipage))
c8e927579e00a18 Wang Shilong 2018-09-11 2690 return PTR_ERR(ipage);
2c1d03056991286 Chao Yu 2017-07-29 2691
2c1d03056991286 Chao Yu 2017-07-29 2692 if (!F2FS_FITS_IN_INODE(F2FS_INODE(ipage), fi->i_extra_isize,
2c1d03056991286 Chao Yu 2017-07-29 2693 i_projid)) {
2c1d03056991286 Chao Yu 2017-07-29 2694 err = -EOVERFLOW;
2c1d03056991286 Chao Yu 2017-07-29 2695 f2fs_put_page(ipage, 1);
c8e927579e00a18 Wang Shilong 2018-09-11 2696 return err;
2c1d03056991286 Chao Yu 2017-07-29 2697 }
2c1d03056991286 Chao Yu 2017-07-29 2698 f2fs_put_page(ipage, 1);
2c1d03056991286 Chao Yu 2017-07-29 2699
c22aecd75919511 Chao Yu 2018-04-21 2700 err = dquot_initialize(inode);
c22aecd75919511 Chao Yu 2018-04-21 2701 if (err)
c8e927579e00a18 Wang Shilong 2018-09-11 2702 return err;
2c1d03056991286 Chao Yu 2017-07-29 2703
78130819695f17f Chao Yu 2018-09-25 2704 f2fs_lock_op(sbi);
78130819695f17f Chao Yu 2018-09-25 2705 err = f2fs_transfer_project_quota(inode, kprojid);
2c1d03056991286 Chao Yu 2017-07-29 2706 if (err)
78130819695f17f Chao Yu 2018-09-25 2707 goto out_unlock;
2c1d03056991286 Chao Yu 2017-07-29 2708
2c1d03056991286 Chao Yu 2017-07-29 2709 F2FS_I(inode)->i_projid = kprojid;
2c1d03056991286 Chao Yu 2017-07-29 2710 inode->i_ctime = current_time(inode);
2c1d03056991286 Chao Yu 2017-07-29 2711 f2fs_mark_inode_dirty_sync(inode, true);
78130819695f17f Chao Yu 2018-09-25 2712 out_unlock:
78130819695f17f Chao Yu 2018-09-25 2713 f2fs_unlock_op(sbi);
2c1d03056991286 Chao Yu 2017-07-29 2714 return err;
2c1d03056991286 Chao Yu 2017-07-29 2715 }
2c1d03056991286 Chao Yu 2017-07-29 2716 #else
78130819695f17f Chao Yu 2018-09-25 2717 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid)
78130819695f17f Chao Yu 2018-09-25 2718 {
78130819695f17f Chao Yu 2018-09-25 2719 return 0;
78130819695f17f Chao Yu 2018-09-25 2720 }
78130819695f17f Chao Yu 2018-09-25 2721
2c1d03056991286 Chao Yu 2017-07-29 2722 static int f2fs_ioc_setproject(struct file *filp, __u32 projid)
2c1d03056991286 Chao Yu 2017-07-29 2723 {
2c1d03056991286 Chao Yu 2017-07-29 2724 if (projid != F2FS_DEF_PROJID)
2c1d03056991286 Chao Yu 2017-07-29 2725 return -EOPNOTSUPP;
2c1d03056991286 Chao Yu 2017-07-29 2726 return 0;
2c1d03056991286 Chao Yu 2017-07-29 2727 }
2c1d03056991286 Chao Yu 2017-07-29 2728 #endif
2c1d03056991286 Chao Yu 2017-07-29 2729
2c1d03056991286 Chao Yu 2017-07-29 2730 /* Transfer internal flags to xflags */
2c1d03056991286 Chao Yu 2017-07-29 2731 static inline __u32 f2fs_iflags_to_xflags(unsigned long iflags)
2c1d03056991286 Chao Yu 2017-07-29 2732 {
2c1d03056991286 Chao Yu 2017-07-29 2733 __u32 xflags = 0;
2c1d03056991286 Chao Yu 2017-07-29 2734
59c844088b19c54 Chao Yu 2018-04-03 2735 if (iflags & F2FS_SYNC_FL)
2c1d03056991286 Chao Yu 2017-07-29 2736 xflags |= FS_XFLAG_SYNC;
59c844088b19c54 Chao Yu 2018-04-03 2737 if (iflags & F2FS_IMMUTABLE_FL)
2c1d03056991286 Chao Yu 2017-07-29 2738 xflags |= FS_XFLAG_IMMUTABLE;
59c844088b19c54 Chao Yu 2018-04-03 2739 if (iflags & F2FS_APPEND_FL)
2c1d03056991286 Chao Yu 2017-07-29 2740 xflags |= FS_XFLAG_APPEND;
59c844088b19c54 Chao Yu 2018-04-03 2741 if (iflags & F2FS_NODUMP_FL)
2c1d03056991286 Chao Yu 2017-07-29 2742 xflags |= FS_XFLAG_NODUMP;
59c844088b19c54 Chao Yu 2018-04-03 2743 if (iflags & F2FS_NOATIME_FL)
2c1d03056991286 Chao Yu 2017-07-29 2744 xflags |= FS_XFLAG_NOATIME;
59c844088b19c54 Chao Yu 2018-04-03 2745 if (iflags & F2FS_PROJINHERIT_FL)
2c1d03056991286 Chao Yu 2017-07-29 2746 xflags |= FS_XFLAG_PROJINHERIT;
2c1d03056991286 Chao Yu 2017-07-29 2747 return xflags;
2c1d03056991286 Chao Yu 2017-07-29 2748 }
2c1d03056991286 Chao Yu 2017-07-29 2749
2c1d03056991286 Chao Yu 2017-07-29 2750 #define F2FS_SUPPORTED_FS_XFLAGS (FS_XFLAG_SYNC | FS_XFLAG_IMMUTABLE | \
2c1d03056991286 Chao Yu 2017-07-29 2751 FS_XFLAG_APPEND | FS_XFLAG_NODUMP | \
2c1d03056991286 Chao Yu 2017-07-29 2752 FS_XFLAG_NOATIME | FS_XFLAG_PROJINHERIT)
2c1d03056991286 Chao Yu 2017-07-29 2753
2c1d03056991286 Chao Yu 2017-07-29 2754 /* Transfer xflags flags to internal */
2c1d03056991286 Chao Yu 2017-07-29 2755 static inline unsigned long f2fs_xflags_to_iflags(__u32 xflags)
2c1d03056991286 Chao Yu 2017-07-29 2756 {
2c1d03056991286 Chao Yu 2017-07-29 2757 unsigned long iflags = 0;
2c1d03056991286 Chao Yu 2017-07-29 2758
2c1d03056991286 Chao Yu 2017-07-29 2759 if (xflags & FS_XFLAG_SYNC)
59c844088b19c54 Chao Yu 2018-04-03 2760 iflags |= F2FS_SYNC_FL;
2c1d03056991286 Chao Yu 2017-07-29 2761 if (xflags & FS_XFLAG_IMMUTABLE)
59c844088b19c54 Chao Yu 2018-04-03 2762 iflags |= F2FS_IMMUTABLE_FL;
2c1d03056991286 Chao Yu 2017-07-29 2763 if (xflags & FS_XFLAG_APPEND)
59c844088b19c54 Chao Yu 2018-04-03 2764 iflags |= F2FS_APPEND_FL;
2c1d03056991286 Chao Yu 2017-07-29 2765 if (xflags & FS_XFLAG_NODUMP)
59c844088b19c54 Chao Yu 2018-04-03 2766 iflags |= F2FS_NODUMP_FL;
2c1d03056991286 Chao Yu 2017-07-29 2767 if (xflags & FS_XFLAG_NOATIME)
59c844088b19c54 Chao Yu 2018-04-03 2768 iflags |= F2FS_NOATIME_FL;
2c1d03056991286 Chao Yu 2017-07-29 2769 if (xflags & FS_XFLAG_PROJINHERIT)
59c844088b19c54 Chao Yu 2018-04-03 2770 iflags |= F2FS_PROJINHERIT_FL;
2c1d03056991286 Chao Yu 2017-07-29 2771
2c1d03056991286 Chao Yu 2017-07-29 2772 return iflags;
2c1d03056991286 Chao Yu 2017-07-29 2773 }
2c1d03056991286 Chao Yu 2017-07-29 2774
2c1d03056991286 Chao Yu 2017-07-29 2775 static int f2fs_ioc_fsgetxattr(struct file *filp, unsigned long arg)
2c1d03056991286 Chao Yu 2017-07-29 2776 {
2c1d03056991286 Chao Yu 2017-07-29 2777 struct inode *inode = file_inode(filp);
2c1d03056991286 Chao Yu 2017-07-29 2778 struct f2fs_inode_info *fi = F2FS_I(inode);
2c1d03056991286 Chao Yu 2017-07-29 2779 struct fsxattr fa;
2c1d03056991286 Chao Yu 2017-07-29 2780
2c1d03056991286 Chao Yu 2017-07-29 2781 memset(&fa, 0, sizeof(struct fsxattr));
2c1d03056991286 Chao Yu 2017-07-29 2782 fa.fsx_xflags = f2fs_iflags_to_xflags(fi->i_flags &
c807a7cb543b535 Chao Yu 2018-04-08 2783 F2FS_FL_USER_VISIBLE);
2c1d03056991286 Chao Yu 2017-07-29 2784
7beb01f74415c56 Chao Yu 2018-10-24 2785 if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)))
2c1d03056991286 Chao Yu 2017-07-29 2786 fa.fsx_projid = (__u32)from_kprojid(&init_user_ns,
2c1d03056991286 Chao Yu 2017-07-29 2787 fi->i_projid);
2c1d03056991286 Chao Yu 2017-07-29 2788
2c1d03056991286 Chao Yu 2017-07-29 2789 if (copy_to_user((struct fsxattr __user *)arg, &fa, sizeof(fa)))
2c1d03056991286 Chao Yu 2017-07-29 2790 return -EFAULT;
2c1d03056991286 Chao Yu 2017-07-29 2791 return 0;
2c1d03056991286 Chao Yu 2017-07-29 2792 }
2c1d03056991286 Chao Yu 2017-07-29 2793
c8e927579e00a18 Wang Shilong 2018-09-11 2794 static int f2fs_ioctl_check_project(struct inode *inode, struct fsxattr *fa)
c8e927579e00a18 Wang Shilong 2018-09-11 2795 {
c8e927579e00a18 Wang Shilong 2018-09-11 2796 /*
c8e927579e00a18 Wang Shilong 2018-09-11 2797 * Project Quota ID state is only allowed to change from within the init
c8e927579e00a18 Wang Shilong 2018-09-11 2798 * namespace. Enforce that restriction only if we are trying to change
c8e927579e00a18 Wang Shilong 2018-09-11 2799 * the quota ID state. Everything else is allowed in user namespaces.
c8e927579e00a18 Wang Shilong 2018-09-11 2800 */
c8e927579e00a18 Wang Shilong 2018-09-11 2801 if (current_user_ns() == &init_user_ns)
c8e927579e00a18 Wang Shilong 2018-09-11 2802 return 0;
c8e927579e00a18 Wang Shilong 2018-09-11 2803
c8e927579e00a18 Wang Shilong 2018-09-11 2804 if (__kprojid_val(F2FS_I(inode)->i_projid) != fa->fsx_projid)
c8e927579e00a18 Wang Shilong 2018-09-11 2805 return -EINVAL;
c8e927579e00a18 Wang Shilong 2018-09-11 2806
c8e927579e00a18 Wang Shilong 2018-09-11 2807 if (F2FS_I(inode)->i_flags & F2FS_PROJINHERIT_FL) {
c8e927579e00a18 Wang Shilong 2018-09-11 2808 if (!(fa->fsx_xflags & FS_XFLAG_PROJINHERIT))
c8e927579e00a18 Wang Shilong 2018-09-11 2809 return -EINVAL;
c8e927579e00a18 Wang Shilong 2018-09-11 2810 } else {
c8e927579e00a18 Wang Shilong 2018-09-11 2811 if (fa->fsx_xflags & FS_XFLAG_PROJINHERIT)
c8e927579e00a18 Wang Shilong 2018-09-11 2812 return -EINVAL;
c8e927579e00a18 Wang Shilong 2018-09-11 2813 }
c8e927579e00a18 Wang Shilong 2018-09-11 2814
c8e927579e00a18 Wang Shilong 2018-09-11 2815 return 0;
c8e927579e00a18 Wang Shilong 2018-09-11 2816 }
c8e927579e00a18 Wang Shilong 2018-09-11 2817
2c1d03056991286 Chao Yu 2017-07-29 2818 static int f2fs_ioc_fssetxattr(struct file *filp, unsigned long arg)
2c1d03056991286 Chao Yu 2017-07-29 2819 {
2c1d03056991286 Chao Yu 2017-07-29 2820 struct inode *inode = file_inode(filp);
2c1d03056991286 Chao Yu 2017-07-29 2821 struct f2fs_inode_info *fi = F2FS_I(inode);
2c1d03056991286 Chao Yu 2017-07-29 2822 struct fsxattr fa;
2c1d03056991286 Chao Yu 2017-07-29 2823 unsigned int flags;
2c1d03056991286 Chao Yu 2017-07-29 2824 int err;
2c1d03056991286 Chao Yu 2017-07-29 2825
2c1d03056991286 Chao Yu 2017-07-29 2826 if (copy_from_user(&fa, (struct fsxattr __user *)arg, sizeof(fa)))
2c1d03056991286 Chao Yu 2017-07-29 2827 return -EFAULT;
2c1d03056991286 Chao Yu 2017-07-29 2828
2c1d03056991286 Chao Yu 2017-07-29 2829 /* Make sure caller has proper permission */
2c1d03056991286 Chao Yu 2017-07-29 2830 if (!inode_owner_or_capable(inode))
2c1d03056991286 Chao Yu 2017-07-29 2831 return -EACCES;
2c1d03056991286 Chao Yu 2017-07-29 2832
2c1d03056991286 Chao Yu 2017-07-29 2833 if (fa.fsx_xflags & ~F2FS_SUPPORTED_FS_XFLAGS)
2c1d03056991286 Chao Yu 2017-07-29 2834 return -EOPNOTSUPP;
2c1d03056991286 Chao Yu 2017-07-29 2835
2c1d03056991286 Chao Yu 2017-07-29 2836 flags = f2fs_xflags_to_iflags(fa.fsx_xflags);
2c1d03056991286 Chao Yu 2017-07-29 2837 if (f2fs_mask_flags(inode->i_mode, flags) != flags)
2c1d03056991286 Chao Yu 2017-07-29 2838 return -EOPNOTSUPP;
2c1d03056991286 Chao Yu 2017-07-29 2839
2c1d03056991286 Chao Yu 2017-07-29 2840 err = mnt_want_write_file(filp);
2c1d03056991286 Chao Yu 2017-07-29 2841 if (err)
2c1d03056991286 Chao Yu 2017-07-29 2842 return err;
2c1d03056991286 Chao Yu 2017-07-29 2843
2c1d03056991286 Chao Yu 2017-07-29 2844 inode_lock(inode);
c8e927579e00a18 Wang Shilong 2018-09-11 2845 err = f2fs_ioctl_check_project(inode, &fa);
c8e927579e00a18 Wang Shilong 2018-09-11 2846 if (err)
c8e927579e00a18 Wang Shilong 2018-09-11 2847 goto out;
2c1d03056991286 Chao Yu 2017-07-29 2848 flags = (fi->i_flags & ~F2FS_FL_XFLAG_VISIBLE) |
2c1d03056991286 Chao Yu 2017-07-29 2849 (flags & F2FS_FL_XFLAG_VISIBLE);
2c1d03056991286 Chao Yu 2017-07-29 2850 err = __f2fs_ioc_setflags(inode, flags);
2c1d03056991286 Chao Yu 2017-07-29 2851 if (err)
c8e927579e00a18 Wang Shilong 2018-09-11 2852 goto out;
2c1d03056991286 Chao Yu 2017-07-29 2853
2c1d03056991286 Chao Yu 2017-07-29 2854 err = f2fs_ioc_setproject(filp, fa.fsx_projid);
c8e927579e00a18 Wang Shilong 2018-09-11 2855 out:
c8e927579e00a18 Wang Shilong 2018-09-11 2856 inode_unlock(inode);
c8e927579e00a18 Wang Shilong 2018-09-11 2857 mnt_drop_write_file(filp);
2c1d03056991286 Chao Yu 2017-07-29 2858 return err;
2c1d03056991286 Chao Yu 2017-07-29 2859 }
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 2860
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2861 int f2fs_pin_file_control(struct inode *inode, bool inc)
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2862 {
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2863 struct f2fs_inode_info *fi = F2FS_I(inode);
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2864 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2865
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2866 /* Use i_gc_failures for normal file as a risk signal. */
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2867 if (inc)
2ef79ecb5e906d8 Chao Yu 2018-05-07 2868 f2fs_i_gc_failures_write(inode,
2ef79ecb5e906d8 Chao Yu 2018-05-07 2869 fi->i_gc_failures[GC_FAILURE_PIN] + 1);
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2870
2ef79ecb5e906d8 Chao Yu 2018-05-07 2871 if (fi->i_gc_failures[GC_FAILURE_PIN] > sbi->gc_pin_file_threshold) {
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2872 f2fs_msg(sbi->sb, KERN_WARNING,
bda5239738fac6a Chao Yu 2019-04-15 2873 "%s: Enable GC = ino %lx after %x GC trials",
2ef79ecb5e906d8 Chao Yu 2018-05-07 2874 __func__, inode->i_ino,
2ef79ecb5e906d8 Chao Yu 2018-05-07 2875 fi->i_gc_failures[GC_FAILURE_PIN]);
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2876 clear_inode_flag(inode, FI_PIN_FILE);
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2877 return -EAGAIN;
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2878 }
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2879 return 0;
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2880 }
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2881
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2882 static int f2fs_ioc_set_pin_file(struct file *filp, unsigned long arg)
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2883 {
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2884 struct inode *inode = file_inode(filp);
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2885 __u32 pin;
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2886 int ret = 0;
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2887
aff7b628ac2d586 Jaegeuk Kim 2019-03-13 2888 if (!capable(CAP_SYS_ADMIN))
aff7b628ac2d586 Jaegeuk Kim 2019-03-13 2889 return -EPERM;
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2890
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2891 if (get_user(pin, (__u32 __user *)arg))
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2892 return -EFAULT;
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2893
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2894 if (!S_ISREG(inode->i_mode))
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2895 return -EINVAL;
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2896
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2897 if (f2fs_readonly(F2FS_I_SB(inode)->sb))
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2898 return -EROFS;
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2899
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2900 ret = mnt_want_write_file(filp);
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2901 if (ret)
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2902 return ret;
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2903
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2904 inode_lock(inode);
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2905
4d57b86dd86404f Chao Yu 2018-05-30 2906 if (f2fs_should_update_outplace(inode, NULL)) {
bb9e3bb8dbf5975 Chao Yu 2018-01-17 2907 ret = -EINVAL;
bb9e3bb8dbf5975 Chao Yu 2018-01-17 2908 goto out;
bb9e3bb8dbf5975 Chao Yu 2018-01-17 2909 }
bb9e3bb8dbf5975 Chao Yu 2018-01-17 2910
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2911 if (!pin) {
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2912 clear_inode_flag(inode, FI_PIN_FILE);
309333648156524 Chao Yu 2018-07-28 2913 f2fs_i_gc_failures_write(inode, 0);
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2914 goto done;
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2915 }
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2916
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2917 if (f2fs_pin_file_control(inode, false)) {
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2918 ret = -EAGAIN;
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2919 goto out;
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2920 }
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2921 ret = f2fs_convert_inline_inode(inode);
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2922 if (ret)
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2923 goto out;
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2924
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2925 set_inode_flag(inode, FI_PIN_FILE);
2ef79ecb5e906d8 Chao Yu 2018-05-07 2926 ret = F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN];
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2927 done:
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2928 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2929 out:
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2930 inode_unlock(inode);
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2931 mnt_drop_write_file(filp);
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2932 return ret;
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2933 }
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2934
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2935 static int f2fs_ioc_get_pin_file(struct file *filp, unsigned long arg)
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2936 {
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2937 struct inode *inode = file_inode(filp);
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2938 __u32 pin = 0;
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2939
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2940 if (is_inode_flag_set(inode, FI_PIN_FILE))
2ef79ecb5e906d8 Chao Yu 2018-05-07 2941 pin = F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN];
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2942 return put_user(pin, (u32 __user *)arg);
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2943 }
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 2944
c4020b2da4c9e84 Chao Yu 2018-01-11 2945 int f2fs_precache_extents(struct inode *inode)
c4020b2da4c9e84 Chao Yu 2018-01-11 2946 {
c4020b2da4c9e84 Chao Yu 2018-01-11 2947 struct f2fs_inode_info *fi = F2FS_I(inode);
c4020b2da4c9e84 Chao Yu 2018-01-11 2948 struct f2fs_map_blocks map;
c4020b2da4c9e84 Chao Yu 2018-01-11 2949 pgoff_t m_next_extent;
c4020b2da4c9e84 Chao Yu 2018-01-11 2950 loff_t end;
c4020b2da4c9e84 Chao Yu 2018-01-11 2951 int err;
c4020b2da4c9e84 Chao Yu 2018-01-11 2952
c4020b2da4c9e84 Chao Yu 2018-01-11 2953 if (is_inode_flag_set(inode, FI_NO_EXTENT))
c4020b2da4c9e84 Chao Yu 2018-01-11 2954 return -EOPNOTSUPP;
c4020b2da4c9e84 Chao Yu 2018-01-11 2955
c4020b2da4c9e84 Chao Yu 2018-01-11 2956 map.m_lblk = 0;
c4020b2da4c9e84 Chao Yu 2018-01-11 2957 map.m_next_pgofs = NULL;
c4020b2da4c9e84 Chao Yu 2018-01-11 2958 map.m_next_extent = &m_next_extent;
c4020b2da4c9e84 Chao Yu 2018-01-11 2959 map.m_seg_type = NO_CHECK_TYPE;
f4f0b6777db4e7a Jia Zhu 2018-11-20 2960 map.m_may_create = false;
c4020b2da4c9e84 Chao Yu 2018-01-11 2961 end = F2FS_I_SB(inode)->max_file_blocks;
c4020b2da4c9e84 Chao Yu 2018-01-11 2962
c4020b2da4c9e84 Chao Yu 2018-01-11 2963 while (map.m_lblk < end) {
c4020b2da4c9e84 Chao Yu 2018-01-11 2964 map.m_len = end - map.m_lblk;
c4020b2da4c9e84 Chao Yu 2018-01-11 2965
b2532c694033fb6 Chao Yu 2018-04-24 2966 down_write(&fi->i_gc_rwsem[WRITE]);
c4020b2da4c9e84 Chao Yu 2018-01-11 2967 err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_PRECACHE);
b2532c694033fb6 Chao Yu 2018-04-24 2968 up_write(&fi->i_gc_rwsem[WRITE]);
c4020b2da4c9e84 Chao Yu 2018-01-11 2969 if (err)
c4020b2da4c9e84 Chao Yu 2018-01-11 2970 return err;
c4020b2da4c9e84 Chao Yu 2018-01-11 2971
c4020b2da4c9e84 Chao Yu 2018-01-11 2972 map.m_lblk = m_next_extent;
c4020b2da4c9e84 Chao Yu 2018-01-11 2973 }
c4020b2da4c9e84 Chao Yu 2018-01-11 2974
c4020b2da4c9e84 Chao Yu 2018-01-11 2975 return err;
c4020b2da4c9e84 Chao Yu 2018-01-11 2976 }
c4020b2da4c9e84 Chao Yu 2018-01-11 2977
c4020b2da4c9e84 Chao Yu 2018-01-11 2978 static int f2fs_ioc_precache_extents(struct file *filp, unsigned long arg)
c4020b2da4c9e84 Chao Yu 2018-01-11 2979 {
c4020b2da4c9e84 Chao Yu 2018-01-11 2980 return f2fs_precache_extents(file_inode(filp));
c4020b2da4c9e84 Chao Yu 2018-01-11 2981 }
c4020b2da4c9e84 Chao Yu 2018-01-11 2982
52656e6cf7be695 Jaegeuk Kim 2014-09-24 2983 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
52656e6cf7be695 Jaegeuk Kim 2014-09-24 2984 {
1f227a3e215d361 Jaegeuk Kim 2017-10-23 2985 if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(filp)))))
1f227a3e215d361 Jaegeuk Kim 2017-10-23 2986 return -EIO;
1f227a3e215d361 Jaegeuk Kim 2017-10-23 2987
52656e6cf7be695 Jaegeuk Kim 2014-09-24 2988 switch (cmd) {
52656e6cf7be695 Jaegeuk Kim 2014-09-24 2989 case F2FS_IOC_GETFLAGS:
52656e6cf7be695 Jaegeuk Kim 2014-09-24 2990 return f2fs_ioc_getflags(filp, arg);
52656e6cf7be695 Jaegeuk Kim 2014-09-24 2991 case F2FS_IOC_SETFLAGS:
52656e6cf7be695 Jaegeuk Kim 2014-09-24 2992 return f2fs_ioc_setflags(filp, arg);
d49f3e890290bd1 Chao Yu 2015-01-23 2993 case F2FS_IOC_GETVERSION:
d49f3e890290bd1 Chao Yu 2015-01-23 2994 return f2fs_ioc_getversion(filp, arg);
88b88a667971599 Jaegeuk Kim 2014-10-06 2995 case F2FS_IOC_START_ATOMIC_WRITE:
88b88a667971599 Jaegeuk Kim 2014-10-06 2996 return f2fs_ioc_start_atomic_write(filp);
88b88a667971599 Jaegeuk Kim 2014-10-06 2997 case F2FS_IOC_COMMIT_ATOMIC_WRITE:
88b88a667971599 Jaegeuk Kim 2014-10-06 2998 return f2fs_ioc_commit_atomic_write(filp);
02a1335f25a386d Jaegeuk Kim 2014-10-06 2999 case F2FS_IOC_START_VOLATILE_WRITE:
02a1335f25a386d Jaegeuk Kim 2014-10-06 3000 return f2fs_ioc_start_volatile_write(filp);
1e84371ffeef451 Jaegeuk Kim 2014-12-09 3001 case F2FS_IOC_RELEASE_VOLATILE_WRITE:
1e84371ffeef451 Jaegeuk Kim 2014-12-09 3002 return f2fs_ioc_release_volatile_write(filp);
1e84371ffeef451 Jaegeuk Kim 2014-12-09 3003 case F2FS_IOC_ABORT_VOLATILE_WRITE:
1e84371ffeef451 Jaegeuk Kim 2014-12-09 3004 return f2fs_ioc_abort_volatile_write(filp);
1abff93d01eddaa Jaegeuk Kim 2015-01-08 3005 case F2FS_IOC_SHUTDOWN:
1abff93d01eddaa Jaegeuk Kim 2015-01-08 3006 return f2fs_ioc_shutdown(filp, arg);
52656e6cf7be695 Jaegeuk Kim 2014-09-24 3007 case FITRIM:
52656e6cf7be695 Jaegeuk Kim 2014-09-24 3008 return f2fs_ioc_fitrim(filp, arg);
f424f664f0e8949 Jaegeuk Kim 2015-04-20 3009 case F2FS_IOC_SET_ENCRYPTION_POLICY:
f424f664f0e8949 Jaegeuk Kim 2015-04-20 3010 return f2fs_ioc_set_encryption_policy(filp, arg);
f424f664f0e8949 Jaegeuk Kim 2015-04-20 3011 case F2FS_IOC_GET_ENCRYPTION_POLICY:
f424f664f0e8949 Jaegeuk Kim 2015-04-20 3012 return f2fs_ioc_get_encryption_policy(filp, arg);
f424f664f0e8949 Jaegeuk Kim 2015-04-20 3013 case F2FS_IOC_GET_ENCRYPTION_PWSALT:
f424f664f0e8949 Jaegeuk Kim 2015-04-20 3014 return f2fs_ioc_get_encryption_pwsalt(filp, arg);
c1c1b58359d45e1 Chao Yu 2015-07-10 3015 case F2FS_IOC_GARBAGE_COLLECT:
c1c1b58359d45e1 Chao Yu 2015-07-10 3016 return f2fs_ioc_gc(filp, arg);
34dc77ad7436870 Jaegeuk Kim 2017-06-15 3017 case F2FS_IOC_GARBAGE_COLLECT_RANGE:
34dc77ad7436870 Jaegeuk Kim 2017-06-15 3018 return f2fs_ioc_gc_range(filp, arg);
456b88e4d15de83 Chao Yu 2015-10-05 3019 case F2FS_IOC_WRITE_CHECKPOINT:
059c0648c6aeb25 Chao Yu 2018-07-17 3020 return f2fs_ioc_write_checkpoint(filp, arg);
d323d005ac4a2d4 Chao Yu 2015-10-27 3021 case F2FS_IOC_DEFRAGMENT:
d323d005ac4a2d4 Chao Yu 2015-10-27 3022 return f2fs_ioc_defragment(filp, arg);
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 3023 case F2FS_IOC_MOVE_RANGE:
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 3024 return f2fs_ioc_move_range(filp, arg);
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 3025 case F2FS_IOC_FLUSH_DEVICE:
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 3026 return f2fs_ioc_flush_device(filp, arg);
e65ef20781cbfcb Jaegeuk Kim 2017-07-21 3027 case F2FS_IOC_GET_FEATURES:
e65ef20781cbfcb Jaegeuk Kim 2017-07-21 3028 return f2fs_ioc_get_features(filp, arg);
2c1d03056991286 Chao Yu 2017-07-29 3029 case F2FS_IOC_FSGETXATTR:
2c1d03056991286 Chao Yu 2017-07-29 3030 return f2fs_ioc_fsgetxattr(filp, arg);
2c1d03056991286 Chao Yu 2017-07-29 3031 case F2FS_IOC_FSSETXATTR:
2c1d03056991286 Chao Yu 2017-07-29 3032 return f2fs_ioc_fssetxattr(filp, arg);
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 3033 case F2FS_IOC_GET_PIN_FILE:
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 3034 return f2fs_ioc_get_pin_file(filp, arg);
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 3035 case F2FS_IOC_SET_PIN_FILE:
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 3036 return f2fs_ioc_set_pin_file(filp, arg);
c4020b2da4c9e84 Chao Yu 2018-01-11 3037 case F2FS_IOC_PRECACHE_EXTENTS:
c4020b2da4c9e84 Chao Yu 2018-01-11 3038 return f2fs_ioc_precache_extents(filp, arg);
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 3039 default:
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 3040 return -ENOTTY;
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 3041 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 3042 }
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 3043
fcc85a4d86b5018 Jaegeuk Kim 2015-04-21 3044 static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
fcc85a4d86b5018 Jaegeuk Kim 2015-04-21 3045 {
b439b103a6c9eb3 Jaegeuk Kim 2016-02-03 3046 struct file *file = iocb->ki_filp;
b439b103a6c9eb3 Jaegeuk Kim 2016-02-03 3047 struct inode *inode = file_inode(file);
b439b103a6c9eb3 Jaegeuk Kim 2016-02-03 3048 ssize_t ret;
fcc85a4d86b5018 Jaegeuk Kim 2015-04-21 3049
126ce7214d21341 Chao Yu 2019-04-02 3050 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) {
126ce7214d21341 Chao Yu 2019-04-02 3051 ret = -EIO;
126ce7214d21341 Chao Yu 2019-04-02 3052 goto out;
126ce7214d21341 Chao Yu 2019-04-02 3053 }
1f227a3e215d361 Jaegeuk Kim 2017-10-23 3054
126ce7214d21341 Chao Yu 2019-04-02 3055 if ((iocb->ki_flags & IOCB_NOWAIT) && !(iocb->ki_flags & IOCB_DIRECT)) {
126ce7214d21341 Chao Yu 2019-04-02 3056 ret = -EINVAL;
126ce7214d21341 Chao Yu 2019-04-02 3057 goto out;
126ce7214d21341 Chao Yu 2019-04-02 3058 }
b91050a80cec3da Hyunchul Lee 2018-03-08 3059
b91050a80cec3da Hyunchul Lee 2018-03-08 3060 if (!inode_trylock(inode)) {
126ce7214d21341 Chao Yu 2019-04-02 3061 if (iocb->ki_flags & IOCB_NOWAIT) {
126ce7214d21341 Chao Yu 2019-04-02 3062 ret = -EAGAIN;
126ce7214d21341 Chao Yu 2019-04-02 3063 goto out;
126ce7214d21341 Chao Yu 2019-04-02 3064 }
b439b103a6c9eb3 Jaegeuk Kim 2016-02-03 3065 inode_lock(inode);
b91050a80cec3da Hyunchul Lee 2018-03-08 3066 }
b91050a80cec3da Hyunchul Lee 2018-03-08 3067
b439b103a6c9eb3 Jaegeuk Kim 2016-02-03 3068 ret = generic_write_checks(iocb, from);
b439b103a6c9eb3 Jaegeuk Kim 2016-02-03 3069 if (ret > 0) {
dc7a10ddee0c56c Jaegeuk Kim 2018-03-30 3070 bool preallocated = false;
dc7a10ddee0c56c Jaegeuk Kim 2018-03-30 3071 size_t target_size = 0;
dc91de78e5e1d44 Jaegeuk Kim 2017-01-13 3072 int err;
dc91de78e5e1d44 Jaegeuk Kim 2017-01-13 3073
dc91de78e5e1d44 Jaegeuk Kim 2017-01-13 3074 if (iov_iter_fault_in_readable(from, iov_iter_count(from)))
dc91de78e5e1d44 Jaegeuk Kim 2017-01-13 3075 set_inode_flag(inode, FI_NO_PREALLOC);
a7de608691f766c Jaegeuk Kim 2016-11-11 3076
d5d5f0c0c9160f0 Chengguang Xu 2019-04-23 3077 if ((iocb->ki_flags & IOCB_NOWAIT)) {
b91050a80cec3da Hyunchul Lee 2018-03-08 3078 if (!f2fs_overwrite_io(inode, iocb->ki_pos,
b91050a80cec3da Hyunchul Lee 2018-03-08 3079 iov_iter_count(from)) ||
b91050a80cec3da Hyunchul Lee 2018-03-08 3080 f2fs_has_inline_data(inode) ||
d5d5f0c0c9160f0 Chengguang Xu 2019-04-23 3081 f2fs_force_buffered_io(inode, iocb, from)) {
d5d5f0c0c9160f0 Chengguang Xu 2019-04-23 3082 clear_inode_flag(inode, FI_NO_PREALLOC);
b91050a80cec3da Hyunchul Lee 2018-03-08 3083 inode_unlock(inode);
126ce7214d21341 Chao Yu 2019-04-02 3084 ret = -EAGAIN;
126ce7214d21341 Chao Yu 2019-04-02 3085 goto out;
b91050a80cec3da Hyunchul Lee 2018-03-08 3086 }
b91050a80cec3da Hyunchul Lee 2018-03-08 3087 } else {
dc7a10ddee0c56c Jaegeuk Kim 2018-03-30 3088 preallocated = true;
dc7a10ddee0c56c Jaegeuk Kim 2018-03-30 3089 target_size = iocb->ki_pos + iov_iter_count(from);
dc7a10ddee0c56c Jaegeuk Kim 2018-03-30 3090
dc91de78e5e1d44 Jaegeuk Kim 2017-01-13 3091 err = f2fs_preallocate_blocks(iocb, from);
a7de608691f766c Jaegeuk Kim 2016-11-11 3092 if (err) {
28cfafb73853f04 Chao Yu 2017-11-13 3093 clear_inode_flag(inode, FI_NO_PREALLOC);
a7de608691f766c Jaegeuk Kim 2016-11-11 3094 inode_unlock(inode);
126ce7214d21341 Chao Yu 2019-04-02 3095 ret = err;
126ce7214d21341 Chao Yu 2019-04-02 3096 goto out;
a7de608691f766c Jaegeuk Kim 2016-11-11 3097 }
b91050a80cec3da Hyunchul Lee 2018-03-08 3098 }
b439b103a6c9eb3 Jaegeuk Kim 2016-02-03 3099 ret = __generic_file_write_iter(iocb, from);
dc91de78e5e1d44 Jaegeuk Kim 2017-01-13 3100 clear_inode_flag(inode, FI_NO_PREALLOC);
b0af6d491a6b5f5 Chao Yu 2017-08-02 3101
dc7a10ddee0c56c Jaegeuk Kim 2018-03-30 3102 /* if we couldn't write data, we should deallocate blocks. */
dc7a10ddee0c56c Jaegeuk Kim 2018-03-30 3103 if (preallocated && i_size_read(inode) < target_size)
dc7a10ddee0c56c Jaegeuk Kim 2018-03-30 3104 f2fs_truncate(inode);
dc7a10ddee0c56c Jaegeuk Kim 2018-03-30 3105
b0af6d491a6b5f5 Chao Yu 2017-08-02 3106 if (ret > 0)
b0af6d491a6b5f5 Chao Yu 2017-08-02 3107 f2fs_update_iostat(F2FS_I_SB(inode), APP_WRITE_IO, ret);
9dfa1baff76d088 Jaegeuk Kim 2016-07-13 3108 }
b439b103a6c9eb3 Jaegeuk Kim 2016-02-03 3109 inode_unlock(inode);
126ce7214d21341 Chao Yu 2019-04-02 3110 out:
126ce7214d21341 Chao Yu 2019-04-02 3111 trace_f2fs_file_write_iter(inode, iocb->ki_pos,
126ce7214d21341 Chao Yu 2019-04-02 3112 iov_iter_count(from), ret);
e259221763a4040 Christoph Hellwig 2016-04-07 3113 if (ret > 0)
e259221763a4040 Christoph Hellwig 2016-04-07 3114 ret = generic_write_sync(iocb, ret);
b439b103a6c9eb3 Jaegeuk Kim 2016-02-03 3115 return ret;
fcc85a4d86b5018 Jaegeuk Kim 2015-04-21 3116 }
fcc85a4d86b5018 Jaegeuk Kim 2015-04-21 3117
e9750824114ff93 Namjae Jeon 2013-02-04 3118 #ifdef CONFIG_COMPAT
e9750824114ff93 Namjae Jeon 2013-02-04 3119 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
e9750824114ff93 Namjae Jeon 2013-02-04 3120 {
e9750824114ff93 Namjae Jeon 2013-02-04 3121 switch (cmd) {
e9750824114ff93 Namjae Jeon 2013-02-04 3122 case F2FS_IOC32_GETFLAGS:
e9750824114ff93 Namjae Jeon 2013-02-04 3123 cmd = F2FS_IOC_GETFLAGS;
e9750824114ff93 Namjae Jeon 2013-02-04 3124 break;
e9750824114ff93 Namjae Jeon 2013-02-04 3125 case F2FS_IOC32_SETFLAGS:
e9750824114ff93 Namjae Jeon 2013-02-04 3126 cmd = F2FS_IOC_SETFLAGS;
e9750824114ff93 Namjae Jeon 2013-02-04 3127 break;
04ef4b626c324a7 Chao Yu 2015-11-10 3128 case F2FS_IOC32_GETVERSION:
04ef4b626c324a7 Chao Yu 2015-11-10 3129 cmd = F2FS_IOC_GETVERSION;
04ef4b626c324a7 Chao Yu 2015-11-10 3130 break;
04ef4b626c324a7 Chao Yu 2015-11-10 3131 case F2FS_IOC_START_ATOMIC_WRITE:
04ef4b626c324a7 Chao Yu 2015-11-10 3132 case F2FS_IOC_COMMIT_ATOMIC_WRITE:
04ef4b626c324a7 Chao Yu 2015-11-10 3133 case F2FS_IOC_START_VOLATILE_WRITE:
04ef4b626c324a7 Chao Yu 2015-11-10 3134 case F2FS_IOC_RELEASE_VOLATILE_WRITE:
04ef4b626c324a7 Chao Yu 2015-11-10 3135 case F2FS_IOC_ABORT_VOLATILE_WRITE:
04ef4b626c324a7 Chao Yu 2015-11-10 3136 case F2FS_IOC_SHUTDOWN:
04ef4b626c324a7 Chao Yu 2015-11-10 3137 case F2FS_IOC_SET_ENCRYPTION_POLICY:
04ef4b626c324a7 Chao Yu 2015-11-10 3138 case F2FS_IOC_GET_ENCRYPTION_PWSALT:
04ef4b626c324a7 Chao Yu 2015-11-10 3139 case F2FS_IOC_GET_ENCRYPTION_POLICY:
04ef4b626c324a7 Chao Yu 2015-11-10 3140 case F2FS_IOC_GARBAGE_COLLECT:
34dc77ad7436870 Jaegeuk Kim 2017-06-15 3141 case F2FS_IOC_GARBAGE_COLLECT_RANGE:
04ef4b626c324a7 Chao Yu 2015-11-10 3142 case F2FS_IOC_WRITE_CHECKPOINT:
04ef4b626c324a7 Chao Yu 2015-11-10 3143 case F2FS_IOC_DEFRAGMENT:
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 3144 case F2FS_IOC_MOVE_RANGE:
e066b83c9b40f3a Jaegeuk Kim 2017-04-13 3145 case F2FS_IOC_FLUSH_DEVICE:
e65ef20781cbfcb Jaegeuk Kim 2017-07-21 3146 case F2FS_IOC_GET_FEATURES:
2c1d03056991286 Chao Yu 2017-07-29 3147 case F2FS_IOC_FSGETXATTR:
2c1d03056991286 Chao Yu 2017-07-29 3148 case F2FS_IOC_FSSETXATTR:
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 3149 case F2FS_IOC_GET_PIN_FILE:
1ad71a27124caf0 Jaegeuk Kim 2017-12-07 3150 case F2FS_IOC_SET_PIN_FILE:
c4020b2da4c9e84 Chao Yu 2018-01-11 3151 case F2FS_IOC_PRECACHE_EXTENTS:
4dd6f977fc778e5 Jaegeuk Kim 2016-07-08 3152 break;
e9750824114ff93 Namjae Jeon 2013-02-04 3153 default:
e9750824114ff93 Namjae Jeon 2013-02-04 3154 return -ENOIOCTLCMD;
e9750824114ff93 Namjae Jeon 2013-02-04 3155 }
e9750824114ff93 Namjae Jeon 2013-02-04 3156 return f2fs_ioctl(file, cmd, (unsigned long) compat_ptr(arg));
e9750824114ff93 Namjae Jeon 2013-02-04 3157 }
e9750824114ff93 Namjae Jeon 2013-02-04 3158 #endif
e9750824114ff93 Namjae Jeon 2013-02-04 3159
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 3160 const struct file_operations f2fs_file_operations = {
267378d4de696d4 Chao Yu 2014-04-23 3161 .llseek = f2fs_llseek,
aad4f8bb42af063 Al Viro 2014-04-02 3162 .read_iter = generic_file_read_iter,
fcc85a4d86b5018 Jaegeuk Kim 2015-04-21 3163 .write_iter = f2fs_file_write_iter,
fcc85a4d86b5018 Jaegeuk Kim 2015-04-21 3164 .open = f2fs_file_open,
126622343a84889 Jaegeuk Kim 2014-12-05 3165 .release = f2fs_release_file,
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 3166 .mmap = f2fs_file_mmap,
7a10f0177e117e9 Jaegeuk Kim 2017-07-24 3167 .flush = f2fs_file_flush,
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 3168 .fsync = f2fs_sync_file,
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 3169 .fallocate = f2fs_fallocate,
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 3170 .unlocked_ioctl = f2fs_ioctl,
e9750824114ff93 Namjae Jeon 2013-02-04 3171 #ifdef CONFIG_COMPAT
e9750824114ff93 Namjae Jeon 2013-02-04 3172 .compat_ioctl = f2fs_compat_ioctl,
e9750824114ff93 Namjae Jeon 2013-02-04 3173 #endif
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 3174 .splice_read = generic_file_splice_read,
8d0207652cbe27d Al Viro 2014-04-05 3175 .splice_write = iter_file_splice_write,
fbfa2cc58d5363f Jaegeuk Kim 2012-11-02 3176 };
:::::: The code at line 42 was first introduced by commit
:::::: d764834378a9870ca56e9b2977ea46e9911ec358 f2fs: add tracepoint for f2fs_filemap_fault()
:::::: TO: Chao Yu <yuchao0@...wei.com>
:::::: CC: Jaegeuk Kim <jaegeuk@...nel.org>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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