From: "Darrick J. Wong" djwong@kernel.org
stable inclusion from linux-4.19.231 commit a1a41571f06e2b66229738bd0c92c1d57dd793e2
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[ 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 Signed-off-by: Yongqiang Liu liuyongqiang13@huawei.com Signed-off-by: Laibin Qiu qiulaibin@huawei.com --- 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 1d1d393f4208..ddb379abd919 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -687,9 +687,14 @@ 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