[PATCH 5.4 17/80] quota: make dquot_quota_sync return errors from ->sync_fs

Greg Kroah-Hartman
2022-02-21T09:12:50Z

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 7abc3230c21a4..dc5f8654b277d 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -693,9 +693,14 @@ 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