[PATCH RESEND 1/5] block: use blkdev_iov_iter_get_pages status for errors

Keith Busch <[email protected]> Mon, 20 Jul 2026 13:10:53 -0700
Newsgroups dev.linux.lists.dm-devel,org.kernel.vger.linux-block,org.kernel.vger.linux-fsdevel
Message-ID <[email protected]>
From: Keith Busch <[email protected]>

blkdev_iov_iter_get_pages() can return various error values, including
EIO, EFAULT, and ENOMEM. Set the actual reported status so user space
can know why an operation failed.

Reviewed-by: Hannes Reinecke <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Keith Busch <[email protected]>
---
 block/fops.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/fops.c b/block/fops.c
index 15783a6180dec..0827bb884d473 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -218,7 +218,7 @@ static ssize_t __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
 
 		ret = blkdev_iov_iter_get_pages(bio, iter, bdev);
 		if (unlikely(ret)) {
-			bio_endio_status(bio, BLK_STS_IOERR);
+			bio_endio_status(bio, errno_to_blk_status(ret));
 			break;
 		}
 		if (iocb->ki_flags & IOCB_NOWAIT) {
-- 
2.52.0