diff options
| author | Christoph Hellwig <hch@lst.de> | 2022-02-09 11:28:27 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2022-02-23 05:11:08 +0300 |
| commit | a773187e37fa5c3bcd92ffda9085707df34f903a (patch) | |
| tree | 71389a9211836c9b3c3c32b74ffca93285f1450b /drivers/md/dm-table.c | |
| parent | 10fa225c33a97385f2843e60b8e86b0ce0cd1e5f (diff) | |
| download | linux-a773187e37fa5c3bcd92ffda9085707df34f903a.tar.xz | |
scsi: dm: 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/20220209082828.2629273-7-hch@lst.de
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/md/dm-table.c')
| -rw-r--r-- | drivers/md/dm-table.c | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index e43096cfe9e2..88ab98637934 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -1822,33 +1822,6 @@ static int device_is_not_random(struct dm_target *ti, struct dm_dev *dev, return !blk_queue_add_random(q); } -static int device_not_write_same_capable(struct dm_target *ti, struct dm_dev *dev, - sector_t start, sector_t len, void *data) -{ - struct request_queue *q = bdev_get_queue(dev->bdev); - - return !q->limits.max_write_same_sectors; -} - -static bool dm_table_supports_write_same(struct dm_table *t) -{ - struct dm_target *ti; - unsigned i; - - for (i = 0; i < dm_table_get_num_targets(t); i++) { - ti = dm_table_get_target(t, i); - - if (!ti->num_write_same_bios) - return false; - - if (!ti->type->iterate_devices || - ti->type->iterate_devices(ti, device_not_write_same_capable, NULL)) - return false; - } - - return true; -} - static int device_not_write_zeroes_capable(struct dm_target *ti, struct dm_dev *dev, sector_t start, sector_t len, void *data) { @@ -2027,8 +2000,6 @@ int dm_table_set_restrictions(struct dm_table *t, struct request_queue *q, else blk_queue_flag_set(QUEUE_FLAG_NONROT, q); - if (!dm_table_supports_write_same(t)) - q->limits.max_write_same_sectors = 0; if (!dm_table_supports_write_zeroes(t)) q->limits.max_write_zeroes_sectors = 0; |