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f2fs: remain written times to update inode during fsync

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This fixes xfstests/generic/392.

The failure was caused by different times between 1) one marked in the last
fsync(2) call and 2) the other given by roll-forward recovery after power-cut.
The reason was that we skipped updating inode block at 1), since its i_size
was recoverable along with 4KB-aligned data writes, which was fixed by:
  "f2fs: fix a wrong condition in f2fs_skip_inode_update"

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2018-03-29 22:50:41 -07:00
parent c79d152094
commit 214c2461a8
2 changed files with 19 additions and 0 deletions
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11
fs/f2fs/f2fs.h
View File

@ -664,6 +664,7 @@ struct f2fs_inode_info {
kprojid_t i_projid; /* id for project quota */
int i_inline_xattr_size; /* inline xattr size */
struct timespec i_crtime; /* inode creation time */
struct timespec i_disk_time[4]; /* inode disk times */
};
static inline void get_extent_info(struct extent_info *ext,
@ -2474,6 +2475,16 @@ static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
i_size_read(inode) & ~PAGE_MASK)
return false;
if (!timespec_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime))
return false;
if (!timespec_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime))
return false;
if (!timespec_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime))
return false;
if (!timespec_equal(F2FS_I(inode)->i_disk_time + 3,
&F2FS_I(inode)->i_crtime))
return false;
down_read(&F2FS_I(inode)->i_sem);
ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
up_read(&F2FS_I(inode)->i_sem);

8
fs/f2fs/inode.c
View File

@ -284,6 +284,10 @@ static int do_read_inode(struct inode *inode)
fi->i_crtime.tv_nsec = le32_to_cpu(ri->i_crtime_nsec);
}
F2FS_I(inode)->i_disk_time[0] = inode->i_atime;
F2FS_I(inode)->i_disk_time[1] = inode->i_ctime;
F2FS_I(inode)->i_disk_time[2] = inode->i_mtime;
F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime;
f2fs_put_page(node_page, 1);
stat_inc_inline_xattr(inode);
@ -444,6 +448,10 @@ void update_inode(struct inode *inode, struct page *node_page)
if (inode->i_nlink == 0)
clear_inline_node(node_page);
F2FS_I(inode)->i_disk_time[0] = inode->i_atime;
F2FS_I(inode)->i_disk_time[1] = inode->i_ctime;
F2FS_I(inode)->i_disk_time[2] = inode->i_mtime;
F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime;
}
void update_inode_page(struct inode *inode)