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erofs: set error to bio if file-backed IO fails

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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: 283213718f ("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>
This commit is contained in:
Sheng Yong 2025-04-08 20:23:50 +08:00 committed by Gao Xiang
parent 0af2f6be1b
commit 1595f15391
1 changed files with 2 additions and 0 deletions
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2
fs/erofs/fileio.c
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@ -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) {