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Message-Id: <20210825221143.30705-1-jack@suse.cz>
Date: Thu, 26 Aug 2021 00:11:30 +0200
From: Jan Kara <jack@...e.cz>
To: Ted Tso <tytso@....edu>
Cc: <linux-ext4@...r.kernel.org>, Jan Kara <jack@...e.cz>
Subject: [PATCH 1/5] libext2fs: Support for orphan file feature
Add support for creating and deleting orphan file and a couple of
utility functions that will be used in other tools.
Signed-off-by: Jan Kara <jack@...e.cz>
---
lib/e2p/feature.c | 4 +
lib/ext2fs/Makefile.in | 2 +
lib/ext2fs/ext2_fs.h | 16 ++-
lib/ext2fs/ext2fs.h | 36 ++++-
lib/ext2fs/orphan.c | 273 ++++++++++++++++++++++++++++++++++++
lib/ext2fs/swapfs.c | 3 +-
lib/ext2fs/tst_super_size.c | 3 +-
lib/support/mkquota.c | 3 +-
8 files changed, 332 insertions(+), 8 deletions(-)
create mode 100644 lib/ext2fs/orphan.c
diff --git a/lib/e2p/feature.c b/lib/e2p/feature.c
index 2291060214ff..29b7b1512400 100644
--- a/lib/e2p/feature.c
+++ b/lib/e2p/feature.c
@@ -49,6 +49,8 @@ static struct feature feature_list[] = {
"fast_commit" },
{ E2P_FEATURE_COMPAT, EXT4_FEATURE_COMPAT_STABLE_INODES,
"stable_inodes" },
+ { E2P_FEATURE_COMPAT, EXT4_FEATURE_COMPAT_ORPHAN_FILE,
+ "orphan_file" },
{ E2P_FEATURE_RO_INCOMPAT, EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER,
"sparse_super" },
@@ -80,6 +82,8 @@ static struct feature feature_list[] = {
"shared_blocks"},
{ E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_VERITY,
"verity"},
+ { E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_ORPHAN_PRESENT,
+ "orphan_present" },
{ E2P_FEATURE_INCOMPAT, EXT2_FEATURE_INCOMPAT_COMPRESSION,
"compression" },
diff --git a/lib/ext2fs/Makefile.in b/lib/ext2fs/Makefile.in
index 2dca12ea60c6..f6a050a2c5db 100644
--- a/lib/ext2fs/Makefile.in
+++ b/lib/ext2fs/Makefile.in
@@ -115,6 +115,7 @@ OBJS= $(DEBUGFS_LIB_OBJS) $(RESIZE_LIB_OBJS) $(E2IMAGE_LIB_OBJS) \
newdir.o \
nls_utf8.o \
openfs.o \
+ orphan.o \
progress.o \
punch.o \
qcow2.o \
@@ -198,6 +199,7 @@ SRCS= ext2_err.c \
$(srcdir)/newdir.c \
$(srcdir)/nls_utf8.c \
$(srcdir)/openfs.c \
+ $(srcdir)/orphan.c \
$(srcdir)/progress.c \
$(srcdir)/punch.c \
$(srcdir)/qcow2.c \
diff --git a/lib/ext2fs/ext2_fs.h b/lib/ext2fs/ext2_fs.h
index 01d2573b6b30..0fc9c09a5925 100644
--- a/lib/ext2fs/ext2_fs.h
+++ b/lib/ext2fs/ext2_fs.h
@@ -773,7 +773,8 @@ struct ext2_super_block {
__u8 s_last_error_errcode;
/*27c*/ __le16 s_encoding; /* Filename charset encoding */
__le16 s_encoding_flags; /* Filename charset encoding flags */
- __le32 s_reserved[95]; /* Padding to the end of the block */
+ __le32 s_orphan_file_inum; /* Inode for tracking orphan inodes */
+ __le32 s_reserved[94]; /* Padding to the end of the block */
/*3fc*/ __u32 s_checksum; /* crc32c(superblock) */
};
@@ -828,7 +829,7 @@ struct ext2_super_block {
#define EXT4_FEATURE_COMPAT_SPARSE_SUPER2 0x0200
#define EXT4_FEATURE_COMPAT_FAST_COMMIT 0x0400
#define EXT4_FEATURE_COMPAT_STABLE_INODES 0x0800
-
+#define EXT4_FEATURE_COMPAT_ORPHAN_FILE 0x1000
#define EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001
#define EXT2_FEATURE_RO_COMPAT_LARGE_FILE 0x0002
@@ -851,6 +852,7 @@ struct ext2_super_block {
#define EXT4_FEATURE_RO_COMPAT_PROJECT 0x2000 /* Project quota */
#define EXT4_FEATURE_RO_COMPAT_SHARED_BLOCKS 0x4000
#define EXT4_FEATURE_RO_COMPAT_VERITY 0x8000
+#define EXT4_FEATURE_RO_COMPAT_ORPHAN_PRESENT 0x10000
#define EXT2_FEATURE_INCOMPAT_COMPRESSION 0x0001
#define EXT2_FEATURE_INCOMPAT_FILETYPE 0x0002
@@ -931,6 +933,7 @@ EXT4_FEATURE_COMPAT_FUNCS(exclude_bitmap, 2, EXCLUDE_BITMAP)
EXT4_FEATURE_COMPAT_FUNCS(sparse_super2, 4, SPARSE_SUPER2)
EXT4_FEATURE_COMPAT_FUNCS(fast_commit, 4, FAST_COMMIT)
EXT4_FEATURE_COMPAT_FUNCS(stable_inodes, 4, STABLE_INODES)
+EXT4_FEATURE_COMPAT_FUNCS(orphan_file, 4, ORPHAN_FILE)
EXT4_FEATURE_RO_COMPAT_FUNCS(sparse_super, 2, SPARSE_SUPER)
EXT4_FEATURE_RO_COMPAT_FUNCS(large_file, 2, LARGE_FILE)
@@ -947,6 +950,7 @@ EXT4_FEATURE_RO_COMPAT_FUNCS(readonly, 4, READONLY)
EXT4_FEATURE_RO_COMPAT_FUNCS(project, 4, PROJECT)
EXT4_FEATURE_RO_COMPAT_FUNCS(shared_blocks, 4, SHARED_BLOCKS)
EXT4_FEATURE_RO_COMPAT_FUNCS(verity, 4, VERITY)
+EXT4_FEATURE_RO_COMPAT_FUNCS(orphan_present, 4, ORPHAN_PRESENT)
EXT4_FEATURE_INCOMPAT_FUNCS(compression, 2, COMPRESSION)
EXT4_FEATURE_INCOMPAT_FUNCS(filetype, 2, FILETYPE)
@@ -1114,6 +1118,14 @@ static inline unsigned int ext2fs_dir_rec_len(__u8 name_len,
return rec_len;
}
+#define EXT4_ORPHAN_BLOCK_MAGIC 0x0b10ca04
+
+/* Structure at the tail of orphan block */
+struct ext4_orphan_block_tail {
+ __u32 ob_magic;
+ __u32 ob_checksum;
+};
+
/*
* Constants for ext4's extended time encoding
*/
diff --git a/lib/ext2fs/ext2fs.h b/lib/ext2fs/ext2fs.h
index 0ac3e451d958..aac838d68681 100644
--- a/lib/ext2fs/ext2fs.h
+++ b/lib/ext2fs/ext2fs.h
@@ -632,7 +632,8 @@ typedef struct ext2_icount *ext2_icount_t;
EXT2_FEATURE_COMPAT_EXT_ATTR|\
EXT4_FEATURE_COMPAT_SPARSE_SUPER2|\
EXT4_FEATURE_COMPAT_FAST_COMMIT|\
- EXT4_FEATURE_COMPAT_STABLE_INODES)
+ EXT4_FEATURE_COMPAT_STABLE_INODES|\
+ EXT4_FEATURE_COMPAT_ORPHAN_FILE)
#ifdef CONFIG_MMP
#define EXT4_LIB_INCOMPAT_MMP EXT4_FEATURE_INCOMPAT_MMP
@@ -667,7 +668,8 @@ typedef struct ext2_icount *ext2_icount_t;
EXT4_FEATURE_RO_COMPAT_READONLY |\
EXT4_FEATURE_RO_COMPAT_PROJECT |\
EXT4_FEATURE_RO_COMPAT_SHARED_BLOCKS |\
- EXT4_FEATURE_RO_COMPAT_VERITY)
+ EXT4_FEATURE_RO_COMPAT_VERITY |\
+ EXT4_FEATURE_RO_COMPAT_ORPHAN_PRESENT)
/*
* These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
@@ -1699,6 +1701,19 @@ errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
+/* orphan.c */
+extern errcode_t ext2fs_create_orphan_file(ext2_filsys fs, blk_t num_blocks);
+extern errcode_t ext2fs_truncate_orphan_file(ext2_filsys fs);
+extern e2_blkcnt_t ext2fs_default_orphan_file_blocks(ext2_filsys fs);
+extern __u32 ext2fs_do_orphan_file_block_csum(ext2_filsys fs, ext2_ino_t ino,
+ __u32 gen, blk64_t blk,
+ char *buf);
+extern errcode_t ext2fs_orphan_file_block_csum_set(ext2_filsys fs,
+ ext2_ino_t ino, blk64_t blk,
+ char *buf);
+extern int ext2fs_orphan_file_block_csum_verify(ext2_filsys fs, ext2_ino_t ino,
+ blk64_t blk, char *buf);
+
/* get_pathname.c */
extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
char **name);
@@ -1852,7 +1867,9 @@ extern int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry);
extern void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type);
extern struct ext2_inode *ext2fs_inode(struct ext2_inode_large * large_inode);
extern const struct ext2_inode *ext2fs_const_inode(const struct ext2_inode_large * large_inode);
-
+extern int ext2fs_inodes_per_orphan_block(ext2_filsys fs);
+extern struct ext4_orphan_block_tail *ext2fs_orphan_block_tail(ext2_filsys fs,
+ char *buf);
#endif
/*
@@ -2162,6 +2179,19 @@ ext2fs_const_inode(const struct ext2_inode_large * large_inode)
return (const struct ext2_inode *) large_inode;
}
+_INLINE_ int ext2fs_inodes_per_orphan_block(ext2_filsys fs)
+{
+ return (fs->blocksize - sizeof(struct ext4_orphan_block_tail)) /
+ sizeof(__u32);
+}
+
+_INLINE_ struct ext4_orphan_block_tail *
+ext2fs_orphan_block_tail(ext2_filsys fs, char *buf)
+{
+ return (struct ext4_orphan_block_tail *)(buf + fs->blocksize -
+ sizeof(struct ext4_orphan_block_tail));
+}
+
#undef _INLINE_
#endif
diff --git a/lib/ext2fs/orphan.c b/lib/ext2fs/orphan.c
new file mode 100644
index 000000000000..649a04378f2b
--- /dev/null
+++ b/lib/ext2fs/orphan.c
@@ -0,0 +1,273 @@
+/*
+ * orphan.c --- utility function to handle orphan file
+ *
+ * Copyright (C) 2015 Jan Kara.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Library
+ * General Public License, version 2.
+ * %End-Header%
+ */
+
+#include "config.h"
+#include <string.h>
+
+#include "ext2_fs.h"
+#include "ext2fsP.h"
+
+errcode_t ext2fs_truncate_orphan_file(ext2_filsys fs)
+{
+ struct ext2_inode inode;
+ errcode_t err;
+ ext2_ino_t ino = fs->super->s_orphan_file_inum;
+
+ err = ext2fs_read_inode(fs, ino, &inode);
+ if (err)
+ return err;
+
+ err = ext2fs_punch(fs, ino, &inode, NULL, 0, ~0ULL);
+ if (err)
+ return err;
+
+ fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
+ memset(&inode, 0, sizeof(struct ext2_inode));
+ err = ext2fs_write_inode(fs, ino, &inode);
+
+ ext2fs_clear_feature_orphan_file(fs->super);
+ ext2fs_clear_feature_orphan_present(fs->super);
+ ext2fs_mark_super_dirty(fs);
+ /* Need to update group descriptors as well */
+ fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
+
+ return err;
+}
+
+__u32 ext2fs_do_orphan_file_block_csum(ext2_filsys fs, ext2_ino_t ino,
+ __u32 gen, blk64_t blk, char *buf)
+{
+ int inodes_per_ob = ext2fs_inodes_per_orphan_block(fs);
+ __u32 crc;
+
+ ino = ext2fs_cpu_to_le32(ino);
+ gen = ext2fs_cpu_to_le32(gen);
+ blk = ext2fs_cpu_to_le64(blk);
+ crc = ext2fs_crc32c_le(fs->csum_seed, (unsigned char *)&ino,
+ sizeof(ino));
+ crc = ext2fs_crc32c_le(crc, (unsigned char *)&gen, sizeof(gen));
+ crc = ext2fs_crc32c_le(crc, (unsigned char *)&blk, sizeof(blk));
+ crc = ext2fs_crc32c_le(crc, (unsigned char *)buf,
+ inodes_per_ob * sizeof(__u32));
+
+ return ext2fs_cpu_to_le32(crc);
+}
+
+struct mkorphan_info {
+ char *buf;
+ char *zerobuf;
+ blk_t num_blocks;
+ blk_t alloc_blocks;
+ blk64_t last_blk;
+ errcode_t err;
+ ino_t ino;
+ __u32 generation;
+};
+
+static int mkorphan_proc(ext2_filsys fs,
+ blk64_t *blocknr,
+ e2_blkcnt_t blockcnt,
+ blk64_t ref_block EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *priv_data)
+{
+ struct mkorphan_info *oi = (struct mkorphan_info *)priv_data;
+ blk64_t new_blk;
+ errcode_t err;
+
+ /* Can we just continue in currently allocated cluster? */
+ if (blockcnt &&
+ EXT2FS_B2C(fs, oi->last_blk) == EXT2FS_B2C(fs, oi->last_blk + 1)) {
+ new_blk = oi->last_blk + 1;
+ } else {
+ err = ext2fs_new_block2(fs, oi->last_blk, 0, &new_blk);
+ if (err) {
+ oi->err = err;
+ return BLOCK_ABORT;
+ }
+ ext2fs_block_alloc_stats2(fs, new_blk, +1);
+ oi->alloc_blocks++;
+ }
+ if (blockcnt >= 0) {
+ if (ext2fs_has_feature_metadata_csum(fs->super)) {
+ struct ext4_orphan_block_tail *tail;
+
+ tail = ext2fs_orphan_block_tail(fs, oi->buf);
+ tail->ob_checksum = ext2fs_do_orphan_file_block_csum(fs,
+ oi->ino, oi->generation, new_blk, oi->buf);
+ }
+ err = io_channel_write_blk64(fs->io, new_blk, 1, oi->buf);
+ } else /* zerobuf is used to initialize new indirect blocks... */
+ err = io_channel_write_blk64(fs->io, new_blk, 1, oi->zerobuf);
+ if (err) {
+ oi->err = err;
+ return BLOCK_ABORT;
+ }
+ oi->last_blk = new_blk;
+ *blocknr = new_blk;
+ if (blockcnt >= 0 && --oi->num_blocks == 0)
+ return BLOCK_CHANGED | BLOCK_ABORT;
+ return BLOCK_CHANGED;
+}
+
+errcode_t ext2fs_create_orphan_file(ext2_filsys fs, blk_t num_blocks)
+{
+ struct ext2_inode inode;
+ ext2_ino_t ino = fs->super->s_orphan_file_inum;
+ errcode_t err;
+ char *buf = NULL, *zerobuf = NULL;
+ struct mkorphan_info oi;
+ struct ext4_orphan_block_tail *ob_tail;
+
+ if (!ino) {
+ err = ext2fs_new_inode(fs, EXT2_ROOT_INO, LINUX_S_IFREG | 0600,
+ 0, &ino);
+ if (err)
+ return err;
+ ext2fs_inode_alloc_stats2(fs, ino, +1, 0);
+ ext2fs_mark_ib_dirty(fs);
+ }
+
+ err = ext2fs_read_inode(fs, ino, &inode);
+ if (err)
+ return err;
+ if (EXT2_I_SIZE(&inode)) {
+ err = ext2fs_truncate_orphan_file(fs);
+ if (err)
+ return err;
+ }
+
+ memset(&inode, 0, sizeof(struct ext2_inode));
+ if (ext2fs_has_feature_extents(fs->super)) {
+ inode.i_flags |= EXT4_EXTENTS_FL;
+ err = ext2fs_write_inode(fs, ino, &inode);
+ if (err)
+ return err;
+ }
+
+ err = ext2fs_get_mem(fs->blocksize, &buf);
+ if (err)
+ return err;
+ err = ext2fs_get_mem(fs->blocksize, &zerobuf);
+ if (err)
+ goto out;
+ memset(buf, 0, fs->blocksize);
+ memset(zerobuf, 0, fs->blocksize);
+ ob_tail = ext2fs_orphan_block_tail(fs, buf);
+ ob_tail->ob_magic = ext2fs_cpu_to_le32(EXT4_ORPHAN_BLOCK_MAGIC);
+ oi.num_blocks = num_blocks;
+ oi.alloc_blocks = 0;
+ oi.last_blk = 0;
+ oi.generation = inode.i_generation;
+ oi.ino = ino;
+ oi.buf = buf;
+ oi.zerobuf = zerobuf;
+ oi.err = 0;
+ err = ext2fs_block_iterate3(fs, ino, BLOCK_FLAG_APPEND,
+ 0, mkorphan_proc, &oi);
+ if (err)
+ goto out;
+ if (oi.err) {
+ err = oi.err;
+ goto out;
+ }
+
+ /* Reread inode after blocks were allocated */
+ err = ext2fs_read_inode(fs, ino, &inode);
+ if (err)
+ goto out;
+ ext2fs_iblk_set(fs, &inode, 0);
+ inode.i_atime = inode.i_mtime =
+ inode.i_ctime = fs->now ? fs->now : time(0);
+ inode.i_links_count = 1;
+ inode.i_mode = LINUX_S_IFREG | 0600;
+ ext2fs_iblk_add_blocks(fs, &inode, oi.alloc_blocks);
+ err = ext2fs_inode_size_set(fs, &inode,
+ (unsigned long long)fs->blocksize * num_blocks);
+ if (err)
+ goto out;
+ err = ext2fs_write_new_inode(fs, ino, &inode);
+ if (err)
+ goto out;
+
+ fs->super->s_orphan_file_inum = ino;
+ ext2fs_set_feature_orphan_file(fs->super);
+ ext2fs_mark_super_dirty(fs);
+ /* Need to update group descriptors as well */
+ fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
+out:
+ if (buf)
+ ext2fs_free_mem(&buf);
+ if (zerobuf)
+ ext2fs_free_mem(&zerobuf);
+ return err;
+}
+
+/*
+ * Find reasonable size for orphan file. We choose orphan file size to be
+ * between 32 and 512 filesystem blocks and not more than 1/4096 of the
+ * filesystem unless it is really small.
+ */
+e2_blkcnt_t ext2fs_default_orphan_file_blocks(ext2_filsys fs)
+{
+ __u64 num_blocks = ext2fs_blocks_count(fs->super);
+ e2_blkcnt_t blks = 512;
+
+ if (num_blocks < 128 * 1024)
+ blks = 32;
+ else if (num_blocks < 2 * 1024 * 1024)
+ blks = num_blocks / 4096;
+ return (blks + EXT2FS_CLUSTER_MASK(fs)) & ~EXT2FS_CLUSTER_MASK(fs);
+}
+
+static errcode_t ext2fs_orphan_file_block_csum(ext2_filsys fs, ext2_ino_t ino,
+ blk64_t blk, char *buf,
+ __u32 *crcp)
+{
+ struct ext2_inode inode;
+ errcode_t retval;
+
+ retval = ext2fs_read_inode(fs, ino, &inode);
+ if (retval)
+ return retval;
+ *crcp = ext2fs_do_orphan_file_block_csum(fs, ino, inode.i_generation,
+ blk, buf);
+ return 0;
+}
+
+errcode_t ext2fs_orphan_file_block_csum_set(ext2_filsys fs, ext2_ino_t ino,
+ blk64_t blk, char *buf)
+{
+ struct ext4_orphan_block_tail *tail;
+
+ if (!ext2fs_has_feature_metadata_csum(fs->super))
+ return 0;
+
+ tail = ext2fs_orphan_block_tail(fs, buf);
+ return ext2fs_orphan_file_block_csum(fs, ino, blk, buf,
+ &tail->ob_checksum);
+}
+
+int ext2fs_orphan_file_block_csum_verify(ext2_filsys fs, ext2_ino_t ino,
+ blk64_t blk, char *buf)
+{
+ struct ext4_orphan_block_tail *tail;
+ __u32 crc;
+ errcode_t retval;
+
+ if (!ext2fs_has_feature_metadata_csum(fs->super))
+ return 1;
+ retval = ext2fs_orphan_file_block_csum(fs, ino, blk, buf, &crc);
+ if (retval)
+ return 0;
+ tail = ext2fs_orphan_block_tail(fs, buf);
+ return ext2fs_le32_to_cpu(tail->ob_checksum) == crc;
+}
diff --git a/lib/ext2fs/swapfs.c b/lib/ext2fs/swapfs.c
index 1006b2d2bd52..b844e7665999 100644
--- a/lib/ext2fs/swapfs.c
+++ b/lib/ext2fs/swapfs.c
@@ -131,8 +131,9 @@ void ext2fs_swap_super(struct ext2_super_block * sb)
/* s_*_time_hi are __u8 and does not need swabbing */
sb->s_encoding = ext2fs_swab16(sb->s_encoding);
sb->s_encoding_flags = ext2fs_swab16(sb->s_encoding_flags);
+ sb->s_orphan_file_inum = ext2fs_swab32(sb->s_orphan_file_inum);
/* catch when new fields are used from s_reserved */
- EXT2FS_BUILD_BUG_ON(sizeof(sb->s_reserved) != 95 * sizeof(__le32));
+ EXT2FS_BUILD_BUG_ON(sizeof(sb->s_reserved) != 94 * sizeof(__le32));
sb->s_checksum = ext2fs_swab32(sb->s_checksum);
}
diff --git a/lib/ext2fs/tst_super_size.c b/lib/ext2fs/tst_super_size.c
index 80a5269bceb7..ad452dee8eb3 100644
--- a/lib/ext2fs/tst_super_size.c
+++ b/lib/ext2fs/tst_super_size.c
@@ -152,7 +152,8 @@ int main(int argc, char **argv)
check_field(s_last_error_errcode, 1);
check_field(s_encoding, 2);
check_field(s_encoding_flags, 2);
- check_field(s_reserved, 95 * 4);
+ check_field(s_orphan_file_inum, 4);
+ check_field(s_reserved, 94 * 4);
check_field(s_checksum, 4);
do_field("Superblock end", 0, 0, cur_offset, 1024);
#endif
diff --git a/lib/support/mkquota.c b/lib/support/mkquota.c
index ec932d132992..019a4bf20729 100644
--- a/lib/support/mkquota.c
+++ b/lib/support/mkquota.c
@@ -507,7 +507,8 @@ errcode_t quota_compute_usage(quota_ctx_t qctx)
continue;
if (ino == EXT2_ROOT_INO ||
(ino >= EXT2_FIRST_INODE(fs->super) &&
- ino != quota_type2inum(PRJQUOTA, fs->super))) {
+ ino != quota_type2inum(PRJQUOTA, fs->super) &&
+ ino != fs->super->s_orphan_file_inum)) {
space = ext2fs_get_stat_i_blocks(fs,
EXT2_INODE(inode)) << 9;
quota_data_add(qctx, inode, ino, space);
--
2.26.2
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