[PATCH AUTOSEL 5.10 15/27] quota: make dquot_quota_sync return errors from ->sync_fs

Sasha Levin
2022-02-09T18:44:27Z

From: "Darrick J. Wong" <djwong@kernel.org>

[ Upstream commit dd5532a4994bfda0386eb2286ec00758cee08444 ]

Strangely, dquot_quota_sync ignores the return code from the ->sync_fs
call, which means that quotacalls like Q_SYNC 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>
---
fs/quota/dquot.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 4f13734637660..09fb8459bb5ce 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -692,9 +692,14 @@ int dquot_quota_sync(struct super_block *sb, int type)
/* This is not very clever (and fast) but currently I don't know about
* any other simple way of getting quota data to disk and we must get
* them there for userspace to be visible... */
- if (sb->s_op->sync_fs)
- sb->s_op->sync_fs(sb, 1);
- sync_blockdev(sb->s_bdev);
+ if (sb->s_op->sync_fs) {
+ ret = sb->s_op->sync_fs(sb, 1);
+ if (ret)
+ return ret;
+ }
+ ret = sync_blockdev(sb->s_bdev);
+ if (ret)
+ return ret;

/*
* Now when everything is written we can discard the pagecache so
--
2.34.1