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vfs: make sync_filesystem return errors from ->sync_fs

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[ Upstream commit 5679897eb1 ]

Strangely, sync_filesystem ignores the return code from the ->sync_fs
call, which means that syscalls like syncfs(2) never see the error.
This doesn't seem right, so fix that.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Darrick J. Wong 2022-01-30 08:53:16 -08:00 • committed by Justin Hammond
parent 0e4a84ee49
commit 3b24189714
1 changed files with 12 additions and 6 deletions
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18
fs/sync.c
View file

@ -29,7 +29,7 @@
*/
int sync_filesystem(struct super_block *sb)
{
int ret;
int ret = 0;
/*
* We need to be protected against the filesystem going from
@ -52,15 +52,21 @@ int sync_filesystem(struct super_block *sb)
* at a time.
*/
writeback_inodes_sb(sb, WB_REASON_SYNC);
if (sb->s_op->sync_fs)
sb->s_op->sync_fs(sb, 0);
if (sb->s_op->sync_fs) {
ret = sb->s_op->sync_fs(sb, 0);
if (ret)
return ret;
}
ret = sync_blockdev_nowait(sb->s_bdev);
if (ret < 0)
if (ret)
return ret;
sync_inodes_sb(sb);
if (sb->s_op->sync_fs)
sb->s_op->sync_fs(sb, 1);
if (sb->s_op->sync_fs) {
ret = sb->s_op->sync_fs(sb, 1);
if (ret)
return ret;
}
return sync_blockdev(sb->s_bdev);
}
EXPORT_SYMBOL(sync_filesystem);