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f2fs: fix to recover inode's crtime during POR 

Testcase to reproduce this bug:
1. mkfs.f2fs -O extra_attr -O inode_crtime /dev/sdd
2. mount -t f2fs /dev/sdd /mnt/f2fs
3. touch /mnt/f2fs/file
4. xfs_io -f /mnt/f2fs/file -c "fsync"
5. godown /mnt/f2fs
6. umount /mnt/f2fs
7. mount -t f2fs /dev/sdd /mnt/f2fs
8. xfs_io -f /mnt/f2fs/file -c "statx -r"

stat.btime.tv_sec = 0
stat.btime.tv_nsec = 0

This patch fixes to recover inode creation time fields during
mount.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2018-09-25 15:36:01 +08:00 committed by Jaegeuk Kim
parent 7de36cf3e4
commit 5cd1f387a1
1 changed files with 7 additions and 0 deletions
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7
fs/f2fs/node.c
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@ -2558,6 +2558,13 @@ retry:
F2FS_FITS_IN_INODE(src, le16_to_cpu(src->i_extra_isize),
i_projid))
dst->i_projid = src->i_projid;
if (f2fs_sb_has_inode_crtime(sbi->sb) &&
F2FS_FITS_IN_INODE(src, le16_to_cpu(src->i_extra_isize),
i_crtime_nsec)) {
dst->i_crtime = src->i_crtime;
dst->i_crtime_nsec = src->i_crtime_nsec;
}
}
new_ni = old_ni;