torvalds/linux
3
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-03-22 07:27:12 +08:00
Code Issues Packages Projects Releases Wiki Activity

block: simplify direct io validity check

Browse Source 
The block layer checks all the segments for validity later, so no need
for an early check. Just reduce it to a simple position and total length
check, and defer the more invasive segment checks to the block layer.

Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Keith Busch
2025-08-27 07:12:54 -07:00
committed by Jens Axboe
parent 20a0e6276e
commit 5ff3f74e14
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
block/fops.c
View File

@@ -38,8 +38,8 @@ static blk_opf_t dio_bio_write_op(struct kiocb *iocb)
static bool blkdev_dio_invalid(struct block_device *bdev, struct kiocb *iocb,
struct iov_iter *iter)
{
return iocb->ki_pos & (bdev_logical_block_size(bdev) - 1) ||
!bdev_iter_is_aligned(bdev, iter);
return (iocb->ki_pos | iov_iter_count(iter)) &
(bdev_logical_block_size(bdev) - 1);
}
#define DIO_INLINE_BIO_VECS 4