6.13-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sheng Yong shengyong1@xiaomi.com
[ Upstream commit 1595f15391b81815e4ef91c339991913d556c1b6 ]
If a file-backed IO fails before submitting the bio to the lower filesystem, an error is returned, but the bio->bi_status is not marked as an error. However, the error information should be passed to the end_io handler. Otherwise, the IO request will be treated as successful.
Fixes: 283213718f5d ("erofs: support compressed inodes for fileio") Signed-off-by: Sheng Yong shengyong1@xiaomi.com Reviewed-by: Gao Xiang hsiangkao@linux.alibaba.com Link: https://lore.kernel.org/r/20250408122351.2104507-1-shengyong1@xiaomi.com Signed-off-by: Gao Xiang hsiangkao@linux.alibaba.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/erofs/fileio.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/fs/erofs/fileio.c b/fs/erofs/fileio.c index 33f8539dda4ae..17aed5f6c5490 100644 --- a/fs/erofs/fileio.c +++ b/fs/erofs/fileio.c @@ -32,6 +32,8 @@ static void erofs_fileio_ki_complete(struct kiocb *iocb, long ret) ret = 0; } if (rq->bio.bi_end_io) { + if (ret < 0 && !rq->bio.bi_status) + rq->bio.bi_status = errno_to_blk_status(ret); rq->bio.bi_end_io(&rq->bio); } else { bio_for_each_folio_all(fi, &rq->bio) {