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f2fs: avoid stat_inc_atomic_write for non-atomic file 

After filemap_write_and_wait_range fail, the FI_ATOMIC_FILE flags is removed,
so that f2fs should not increase the stat of atomic_write.

Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Kinglong Mee 2017-03-18 09:20:55 +08:00 committed by Jaegeuk Kim
parent a58f24495d
commit 684ca7e55d
1 changed files with 7 additions and 3 deletions
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10
fs/f2fs/file.c
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@ -1533,17 +1533,21 @@ static int f2fs_ioc_start_atomic_write(struct file *filp)
f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
if (!get_dirty_pages(inode))
goto out;
goto inc_stat;
f2fs_msg(F2FS_I_SB(inode)->sb, KERN_WARNING,
"Unexpected flush for atomic writes: ino=%lu, npages=%u",
inode->i_ino, get_dirty_pages(inode));
ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
if (ret)
if (ret) {
clear_inode_flag(inode, FI_ATOMIC_FILE);
out:
goto out;
}
inc_stat:
stat_inc_atomic_write(inode);
stat_update_max_atomic_write(inode);
out:
inode_unlock(inode);
mnt_drop_write_file(filp);
return ret;