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scsi: md: Remove WRITE_SAME support 

There are no more end-users of REQ_OP_WRITE_SAME left, so we can start
deleting it.

Link: https://lore.kernel.org/r/20220209082828.2629273-6-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Christoph Hellwig 2022-02-09 09:28:26 +01:00 committed by Martin K. Petersen
parent e383e16e84
commit 10fa225c33
7 changed files with 1 additions and 16 deletions
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1
drivers/md/md-linear.c
View File

@ -259,7 +259,6 @@ static bool linear_make_request(struct mddev *mddev, struct bio *bio)
if (mddev->gendisk)
trace_block_bio_remap(bio, disk_devt(mddev->gendisk),
bio_sector);
mddev_check_writesame(mddev, bio);
mddev_check_write_zeroes(mddev, bio);
submit_bio_noacct(bio);
}

1
drivers/md/md-multipath.c
View File

@ -129,7 +129,6 @@ static bool multipath_make_request(struct mddev *mddev, struct bio * bio)
mp_bh->bio.bi_opf |= REQ_FAILFAST_TRANSPORT;
mp_bh->bio.bi_end_io = multipath_end_request;
mp_bh->bio.bi_private = mp_bh;
mddev_check_writesame(mddev, &mp_bh->bio);
mddev_check_write_zeroes(mddev, &mp_bh->bio);
submit_bio_noacct(&mp_bh->bio);
return true;

7
drivers/md/md.h
View File

@ -797,13 +797,6 @@ static inline void mddev_clear_unsupported_flags(struct mddev *mddev,
mddev->flags &= ~unsupported_flags;
}
static inline void mddev_check_writesame(struct mddev *mddev, struct bio *bio)
{
if (bio_op(bio) == REQ_OP_WRITE_SAME &&
!bio->bi_bdev->bd_disk->queue->limits.max_write_same_sectors)
mddev->queue->limits.max_write_same_sectors = 0;
}
static inline void mddev_check_write_zeroes(struct mddev *mddev, struct bio *bio)
{
if (bio_op(bio) == REQ_OP_WRITE_ZEROES &&

2
drivers/md/raid0.c
View File

@ -402,7 +402,6 @@ static int raid0_run(struct mddev *mddev)
bool discard_supported = false;
blk_queue_max_hw_sectors(mddev->queue, mddev->chunk_sectors);
blk_queue_max_write_same_sectors(mddev->queue, mddev->chunk_sectors);
blk_queue_max_write_zeroes_sectors(mddev->queue, mddev->chunk_sectors);
blk_queue_max_discard_sectors(mddev->queue, UINT_MAX);
@ -594,7 +593,6 @@ static bool raid0_make_request(struct mddev *mddev, struct bio *bio)
if (mddev->gendisk)
trace_block_bio_remap(bio, disk_devt(mddev->gendisk),
bio_sector);
mddev_check_writesame(mddev, bio);
mddev_check_write_zeroes(mddev, bio);
submit_bio_noacct(bio);
return true;

4
drivers/md/raid1.c
View File

@ -3147,10 +3147,8 @@ static int raid1_run(struct mddev *mddev)
if (IS_ERR(conf))
return PTR_ERR(conf);
if (mddev->queue) {
blk_queue_max_write_same_sectors(mddev->queue, 0);
if (mddev->queue)
blk_queue_max_write_zeroes_sectors(mddev->queue, 0);
}
rdev_for_each(rdev, mddev) {
if (!mddev->gendisk)

1
drivers/md/raid10.c
View File

@ -4115,7 +4115,6 @@ static int raid10_run(struct mddev *mddev)
if (mddev->queue) {
blk_queue_max_discard_sectors(mddev->queue,
UINT_MAX);
blk_queue_max_write_same_sectors(mddev->queue, 0);
blk_queue_max_write_zeroes_sectors(mddev->queue, 0);
blk_queue_io_min(mddev->queue, mddev->chunk_sectors << 9);
raid10_set_io_opt(conf);

1
drivers/md/raid5.c
View File

@ -7767,7 +7767,6 @@ static int raid5_run(struct mddev *mddev)
mddev->queue->limits.discard_alignment = stripe;
mddev->queue->limits.discard_granularity = stripe;
blk_queue_max_write_same_sectors(mddev->queue, 0);
blk_queue_max_write_zeroes_sectors(mddev->queue, 0);
rdev_for_each(rdev, mddev) {