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Date: Thu, 30 Nov 2017 19:28:17 +0800
From: Chao Yu <yuchao0@...wei.com>
To: <jaegeuk@...nel.org>
CC: <linux-f2fs-devel@...ts.sourceforge.net>,
<linux-kernel@...r.kernel.org>, <chao@...nel.org>,
Chao Yu <yuchao0@...wei.com>
Subject: [PATCH 1/7] f2fs: inject fault to kzalloc
This patch introduces f2fs_kzalloc based on f2fs_kmalloc in order to
support error injection for kzalloc().
Signed-off-by: Chao Yu <yuchao0@...wei.com>
---
fs/f2fs/checkpoint.c | 2 +-
fs/f2fs/debug.c | 2 +-
fs/f2fs/f2fs.h | 6 ++++++
fs/f2fs/namei.c | 2 +-
fs/f2fs/node.c | 7 ++++---
fs/f2fs/segment.c | 30 ++++++++++++++++--------------
fs/f2fs/xattr.c | 8 ++++----
7 files changed, 33 insertions(+), 24 deletions(-)
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index a30024f2a567..d1f160ae4959 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -796,7 +796,7 @@ int get_valid_checkpoint(struct f2fs_sb_info *sbi)
block_t cp_blk_no;
int i;
- sbi->ckpt = kzalloc(cp_blks * blk_size, GFP_KERNEL);
+ sbi->ckpt = f2fs_kzalloc(sbi, cp_blks * blk_size, GFP_KERNEL);
if (!sbi->ckpt)
return -ENOMEM;
/*
diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index 674f9bbe98d9..a66107b5cfff 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -439,7 +439,7 @@ int f2fs_build_stats(struct f2fs_sb_info *sbi)
struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
struct f2fs_stat_info *si;
- si = kzalloc(sizeof(struct f2fs_stat_info), GFP_KERNEL);
+ si = f2fs_kzalloc(sbi, sizeof(struct f2fs_stat_info), GFP_KERNEL);
if (!si)
return -ENOMEM;
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index b54b1c74f2e8..1b714d17d689 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -2425,6 +2425,12 @@ static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
return kmalloc(size, flags);
}
+static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
+ size_t size, gfp_t flags)
+{
+ return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO);
+}
+
static inline int get_extra_isize(struct inode *inode)
{
return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index 28bdf8828e73..0c0abb17ed4b 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -544,7 +544,7 @@ static int f2fs_symlink(struct inode *dir, struct dentry *dentry,
struct qstr istr = QSTR_INIT(symname, len);
struct fscrypt_str ostr;
- sd = kzalloc(disk_link.len, GFP_NOFS);
+ sd = f2fs_kzalloc(sbi, disk_link.len, GFP_NOFS);
if (!sd) {
err = -ENOMEM;
goto err_out;
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 4d85bd7c7296..2d6da4f26b83 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -2600,8 +2600,8 @@ static int __get_nat_bitmaps(struct f2fs_sb_info *sbi)
nm_i->nat_bits_blocks = F2FS_BYTES_TO_BLK((nat_bits_bytes << 1) + 8 +
F2FS_BLKSIZE - 1);
- nm_i->nat_bits = kzalloc(nm_i->nat_bits_blocks << F2FS_BLKSIZE_BITS,
- GFP_KERNEL);
+ nm_i->nat_bits = f2fs_kzalloc(sbi,
+ nm_i->nat_bits_blocks << F2FS_BLKSIZE_BITS, GFP_KERNEL);
if (!nm_i->nat_bits)
return -ENOMEM;
@@ -2747,7 +2747,8 @@ int build_node_manager(struct f2fs_sb_info *sbi)
{
int err;
- sbi->nm_info = kzalloc(sizeof(struct f2fs_nm_info), GFP_KERNEL);
+ sbi->nm_info = f2fs_kzalloc(sbi, sizeof(struct f2fs_nm_info),
+ GFP_KERNEL);
if (!sbi->nm_info)
return -ENOMEM;
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index b4496a5d3cf3..e665a227b2c9 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -657,7 +657,7 @@ int create_flush_cmd_control(struct f2fs_sb_info *sbi)
goto init_thread;
}
- fcc = kzalloc(sizeof(struct flush_cmd_control), GFP_KERNEL);
+ fcc = f2fs_kzalloc(sbi, sizeof(struct flush_cmd_control), GFP_KERNEL);
if (!fcc)
return -ENOMEM;
atomic_set(&fcc->issued_flush, 0);
@@ -1737,7 +1737,7 @@ static int create_discard_cmd_control(struct f2fs_sb_info *sbi)
goto init_thread;
}
- dcc = kzalloc(sizeof(struct discard_cmd_control), GFP_KERNEL);
+ dcc = f2fs_kzalloc(sbi, sizeof(struct discard_cmd_control), GFP_KERNEL);
if (!dcc)
return -ENOMEM;
@@ -3379,7 +3379,7 @@ static int build_sit_info(struct f2fs_sb_info *sbi)
unsigned int bitmap_size;
/* allocate memory for SIT information */
- sit_i = kzalloc(sizeof(struct sit_info), GFP_KERNEL);
+ sit_i = f2fs_kzalloc(sbi, sizeof(struct sit_info), GFP_KERNEL);
if (!sit_i)
return -ENOMEM;
@@ -3397,29 +3397,30 @@ static int build_sit_info(struct f2fs_sb_info *sbi)
for (start = 0; start < MAIN_SEGS(sbi); start++) {
sit_i->sentries[start].cur_valid_map
- = kzalloc(SIT_VBLOCK_MAP_SIZE, GFP_KERNEL);
+ = f2fs_kzalloc(sbi, SIT_VBLOCK_MAP_SIZE, GFP_KERNEL);
sit_i->sentries[start].ckpt_valid_map
- = kzalloc(SIT_VBLOCK_MAP_SIZE, GFP_KERNEL);
+ = f2fs_kzalloc(sbi, SIT_VBLOCK_MAP_SIZE, GFP_KERNEL);
if (!sit_i->sentries[start].cur_valid_map ||
!sit_i->sentries[start].ckpt_valid_map)
return -ENOMEM;
#ifdef CONFIG_F2FS_CHECK_FS
sit_i->sentries[start].cur_valid_map_mir
- = kzalloc(SIT_VBLOCK_MAP_SIZE, GFP_KERNEL);
+ = f2fs_kzalloc(sbi, SIT_VBLOCK_MAP_SIZE, GFP_KERNEL);
if (!sit_i->sentries[start].cur_valid_map_mir)
return -ENOMEM;
#endif
if (f2fs_discard_en(sbi)) {
sit_i->sentries[start].discard_map
- = kzalloc(SIT_VBLOCK_MAP_SIZE, GFP_KERNEL);
+ = f2fs_kzalloc(sbi, SIT_VBLOCK_MAP_SIZE,
+ GFP_KERNEL);
if (!sit_i->sentries[start].discard_map)
return -ENOMEM;
}
}
- sit_i->tmp_map = kzalloc(SIT_VBLOCK_MAP_SIZE, GFP_KERNEL);
+ sit_i->tmp_map = f2fs_kzalloc(sbi, SIT_VBLOCK_MAP_SIZE, GFP_KERNEL);
if (!sit_i->tmp_map)
return -ENOMEM;
@@ -3468,7 +3469,7 @@ static int build_free_segmap(struct f2fs_sb_info *sbi)
unsigned int bitmap_size, sec_bitmap_size;
/* allocate memory for free segmap information */
- free_i = kzalloc(sizeof(struct free_segmap_info), GFP_KERNEL);
+ free_i = f2fs_kzalloc(sbi, sizeof(struct free_segmap_info), GFP_KERNEL);
if (!free_i)
return -ENOMEM;
@@ -3509,12 +3510,12 @@ static int build_curseg(struct f2fs_sb_info *sbi)
for (i = 0; i < NR_CURSEG_TYPE; i++) {
mutex_init(&array[i].curseg_mutex);
- array[i].sum_blk = kzalloc(PAGE_SIZE, GFP_KERNEL);
+ array[i].sum_blk = f2fs_kzalloc(sbi, PAGE_SIZE, GFP_KERNEL);
if (!array[i].sum_blk)
return -ENOMEM;
init_rwsem(&array[i].journal_rwsem);
- array[i].journal = kzalloc(sizeof(struct f2fs_journal),
- GFP_KERNEL);
+ array[i].journal = f2fs_kzalloc(sbi,
+ sizeof(struct f2fs_journal), GFP_KERNEL);
if (!array[i].journal)
return -ENOMEM;
array[i].segno = NULL_SEGNO;
@@ -3672,7 +3673,8 @@ static int build_dirty_segmap(struct f2fs_sb_info *sbi)
unsigned int bitmap_size, i;
/* allocate memory for dirty segments list information */
- dirty_i = kzalloc(sizeof(struct dirty_seglist_info), GFP_KERNEL);
+ dirty_i = f2fs_kzalloc(sbi, sizeof(struct dirty_seglist_info),
+ GFP_KERNEL);
if (!dirty_i)
return -ENOMEM;
@@ -3726,7 +3728,7 @@ int build_segment_manager(struct f2fs_sb_info *sbi)
struct f2fs_sm_info *sm_info;
int err;
- sm_info = kzalloc(sizeof(struct f2fs_sm_info), GFP_KERNEL);
+ sm_info = f2fs_kzalloc(sbi, sizeof(struct f2fs_sm_info), GFP_KERNEL);
if (!sm_info)
return -ENOMEM;
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index ec8961ef8cac..5e2b905cc0c4 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -298,8 +298,8 @@ static int lookup_all_xattrs(struct inode *inode, struct page *ipage,
if (!size && !inline_size)
return -ENODATA;
- txattr_addr = kzalloc(inline_size + size + XATTR_PADDING_SIZE,
- GFP_F2FS_ZERO);
+ txattr_addr = f2fs_kzalloc(F2FS_I_SB(inode),
+ inline_size + size + XATTR_PADDING_SIZE, GFP_NOFS);
if (!txattr_addr)
return -ENOMEM;
@@ -351,8 +351,8 @@ static int read_all_xattrs(struct inode *inode, struct page *ipage,
void *txattr_addr;
int err;
- txattr_addr = kzalloc(inline_size + size + XATTR_PADDING_SIZE,
- GFP_F2FS_ZERO);
+ txattr_addr = f2fs_kzalloc(F2FS_I_SB(inode),
+ inline_size + size + XATTR_PADDING_SIZE, GFP_NOFS);
if (!txattr_addr)
return -ENOMEM;
--
2.15.0.55.gc2ece9dc4de6
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