From 9377b95cda735bb14f7a2243a4f49ee9c8e948f8 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 19 Dec 2024 07:01:59 +0100 Subject: [PATCH] block: remove BLK_MQ_F_SHOULD_MERGE BLK_MQ_F_SHOULD_MERGE is set for all tag_sets except those that purely process passthrough commands (bsg-lib, ufs tmf, various nvme admin queues) and thus don't even check the flag. Remove it to simplify the driver interface. Signed-off-by: Christoph Hellwig Link: https://lore.kernel.org/r/20241219060214.1928848-1-hch@lst.de Signed-off-by: Jens Axboe --- arch/um/drivers/ubd_kern.c | 1 - block/blk-mq-debugfs.c | 1 - block/blk-mq-sched.c | 3 +-- drivers/block/amiflop.c | 1 - drivers/block/aoe/aoeblk.c | 1 - drivers/block/ataflop.c | 1 - drivers/block/floppy.c | 1 - drivers/block/loop.c | 3 +-- drivers/block/mtip32xx/mtip32xx.c | 1 - drivers/block/nbd.c | 3 +-- drivers/block/null_blk/main.c | 2 -- drivers/block/ps3disk.c | 3 +-- drivers/block/rbd.c | 1 - drivers/block/rnbd/rnbd-clt.c | 3 +-- drivers/block/sunvdc.c | 2 +- drivers/block/swim.c | 2 +- drivers/block/swim3.c | 3 +-- drivers/block/ublk_drv.c | 1 - drivers/block/virtio_blk.c | 1 - drivers/block/xen-blkfront.c | 1 - drivers/block/z2ram.c | 1 - drivers/cdrom/gdrom.c | 2 +- drivers/md/dm-rq.c | 2 +- drivers/memstick/core/ms_block.c | 3 +-- drivers/memstick/core/mspro_block.c | 3 +-- drivers/mmc/core/queue.c | 2 +- drivers/mtd/mtd_blkdevs.c | 2 +- drivers/mtd/ubi/block.c | 2 +- drivers/nvme/host/apple.c | 1 - drivers/nvme/host/core.c | 1 - drivers/s390/block/dasd_genhd.c | 1 - drivers/s390/block/scm_blk.c | 1 - drivers/scsi/scsi_lib.c | 1 - include/linux/blk-mq.h | 1 - 34 files changed, 15 insertions(+), 43 deletions(-) diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c index 66c1a8835e36..0b1e61f72fb3 100644 --- a/arch/um/drivers/ubd_kern.c +++ b/arch/um/drivers/ubd_kern.c @@ -865,7 +865,6 @@ static int ubd_add(int n, char **error_out) ubd_dev->tag_set.ops = &ubd_mq_ops; ubd_dev->tag_set.queue_depth = 64; ubd_dev->tag_set.numa_node = NUMA_NO_NODE; - ubd_dev->tag_set.flags = BLK_MQ_F_SHOULD_MERGE; ubd_dev->tag_set.driver_data = ubd_dev; ubd_dev->tag_set.nr_hw_queues = 1; diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c index 5463697a8442..4b6b20ccdb53 100644 --- a/block/blk-mq-debugfs.c +++ b/block/blk-mq-debugfs.c @@ -181,7 +181,6 @@ static const char *const alloc_policy_name[] = { #define HCTX_FLAG_NAME(name) [ilog2(BLK_MQ_F_##name)] = #name static const char *const hctx_flag_name[] = { - HCTX_FLAG_NAME(SHOULD_MERGE), HCTX_FLAG_NAME(TAG_QUEUE_SHARED), HCTX_FLAG_NAME(STACKING), HCTX_FLAG_NAME(TAG_HCTX_SHARED), diff --git a/block/blk-mq-sched.c b/block/blk-mq-sched.c index 451a2c1f1f32..7442ca27c2bf 100644 --- a/block/blk-mq-sched.c +++ b/block/blk-mq-sched.c @@ -351,8 +351,7 @@ bool blk_mq_sched_bio_merge(struct request_queue *q, struct bio *bio, ctx = blk_mq_get_ctx(q); hctx = blk_mq_map_queue(q, bio->bi_opf, ctx); type = hctx->type; - if (!(hctx->flags & BLK_MQ_F_SHOULD_MERGE) || - list_empty_careful(&ctx->rq_lists[type])) + if (list_empty_careful(&ctx->rq_lists[type])) goto out_put; /* default per sw-queue merge */ diff --git a/drivers/block/amiflop.c b/drivers/block/amiflop.c index 49ced65bef4c..9edd4468f755 100644 --- a/drivers/block/amiflop.c +++ b/drivers/block/amiflop.c @@ -1819,7 +1819,6 @@ static int fd_alloc_drive(int drive) unit[drive].tag_set.nr_maps = 1; unit[drive].tag_set.queue_depth = 2; unit[drive].tag_set.numa_node = NUMA_NO_NODE; - unit[drive].tag_set.flags = BLK_MQ_F_SHOULD_MERGE; if (blk_mq_alloc_tag_set(&unit[drive].tag_set)) goto out_cleanup_trackbuf; diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c index 2028795ec61c..00b74a845328 100644 --- a/drivers/block/aoe/aoeblk.c +++ b/drivers/block/aoe/aoeblk.c @@ -368,7 +368,6 @@ aoeblk_gdalloc(void *vp) set->nr_hw_queues = 1; set->queue_depth = 128; set->numa_node = NUMA_NO_NODE; - set->flags = BLK_MQ_F_SHOULD_MERGE; err = blk_mq_alloc_tag_set(set); if (err) { pr_err("aoe: cannot allocate tag set for %ld.%d\n", diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c index 4ba98c6654be..110f9aca2667 100644 --- a/drivers/block/ataflop.c +++ b/drivers/block/ataflop.c @@ -2088,7 +2088,6 @@ static int __init atari_floppy_init (void) unit[i].tag_set.nr_maps = 1; unit[i].tag_set.queue_depth = 2; unit[i].tag_set.numa_node = NUMA_NO_NODE; - unit[i].tag_set.flags = BLK_MQ_F_SHOULD_MERGE; ret = blk_mq_alloc_tag_set(&unit[i].tag_set); if (ret) goto err; diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 3affb538b989..abf0486f0d4f 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -4596,7 +4596,6 @@ static int __init do_floppy_init(void) tag_sets[drive].nr_maps = 1; tag_sets[drive].queue_depth = 2; tag_sets[drive].numa_node = NUMA_NO_NODE; - tag_sets[drive].flags = BLK_MQ_F_SHOULD_MERGE; err = blk_mq_alloc_tag_set(&tag_sets[drive]); if (err) goto out_put_disk; diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 8f6761c27c68..836a53eef4b4 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -2023,8 +2023,7 @@ static int loop_add(int i) lo->tag_set.queue_depth = hw_queue_depth; lo->tag_set.numa_node = NUMA_NO_NODE; lo->tag_set.cmd_size = sizeof(struct loop_cmd); - lo->tag_set.flags = BLK_MQ_F_SHOULD_MERGE | BLK_MQ_F_STACKING | - BLK_MQ_F_NO_SCHED_BY_DEFAULT; + lo->tag_set.flags = BLK_MQ_F_STACKING | BLK_MQ_F_NO_SCHED_BY_DEFAULT; lo->tag_set.driver_data = lo; err = blk_mq_alloc_tag_set(&lo->tag_set); diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index 43701b7b10a7..95361099a2dc 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -3416,7 +3416,6 @@ static int mtip_block_initialize(struct driver_data *dd) dd->tags.reserved_tags = 1; dd->tags.cmd_size = sizeof(struct mtip_cmd); dd->tags.numa_node = dd->numa_node; - dd->tags.flags = BLK_MQ_F_SHOULD_MERGE; dd->tags.driver_data = dd; dd->tags.timeout = MTIP_NCQ_CMD_TIMEOUT_MS; diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index b852050d8a96..b1a5af69a66d 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -1841,8 +1841,7 @@ static struct nbd_device *nbd_dev_add(int index, unsigned int refs) nbd->tag_set.queue_depth = 128; nbd->tag_set.numa_node = NUMA_NO_NODE; nbd->tag_set.cmd_size = sizeof(struct nbd_cmd); - nbd->tag_set.flags = BLK_MQ_F_SHOULD_MERGE | - BLK_MQ_F_BLOCKING; + nbd->tag_set.flags = BLK_MQ_F_BLOCKING; nbd->tag_set.driver_data = nbd; INIT_WORK(&nbd->remove_work, nbd_dev_remove_work); nbd->backend = NULL; diff --git a/drivers/block/null_blk/main.c b/drivers/block/null_blk/main.c index 7b674187c096..178e62cd9a9f 100644 --- a/drivers/block/null_blk/main.c +++ b/drivers/block/null_blk/main.c @@ -1791,7 +1791,6 @@ static int null_init_global_tag_set(void) tag_set.nr_hw_queues = g_submit_queues; tag_set.queue_depth = g_hw_queue_depth; tag_set.numa_node = g_home_node; - tag_set.flags = BLK_MQ_F_SHOULD_MERGE; if (g_no_sched) tag_set.flags |= BLK_MQ_F_NO_SCHED; if (g_shared_tag_bitmap) @@ -1817,7 +1816,6 @@ static int null_setup_tagset(struct nullb *nullb) nullb->tag_set->nr_hw_queues = nullb->dev->submit_queues; nullb->tag_set->queue_depth = nullb->dev->hw_queue_depth; nullb->tag_set->numa_node = nullb->dev->home_node; - nullb->tag_set->flags = BLK_MQ_F_SHOULD_MERGE; if (nullb->dev->no_sched) nullb->tag_set->flags |= BLK_MQ_F_NO_SCHED; if (nullb->dev->shared_tag_bitmap) diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c index ff45ed766469..68fed46c463e 100644 --- a/drivers/block/ps3disk.c +++ b/drivers/block/ps3disk.c @@ -434,8 +434,7 @@ static int ps3disk_probe(struct ps3_system_bus_device *_dev) ps3disk_identify(dev); - error = blk_mq_alloc_sq_tag_set(&priv->tag_set, &ps3disk_mq_ops, 1, - BLK_MQ_F_SHOULD_MERGE); + error = blk_mq_alloc_sq_tag_set(&priv->tag_set, &ps3disk_mq_ops, 1, 0); if (error) goto fail_teardown; diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index ac421dbeeb11..5b393e4a1ddf 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -4964,7 +4964,6 @@ static int rbd_init_disk(struct rbd_device *rbd_dev) rbd_dev->tag_set.ops = &rbd_mq_ops; rbd_dev->tag_set.queue_depth = rbd_dev->opts->queue_depth; rbd_dev->tag_set.numa_node = NUMA_NO_NODE; - rbd_dev->tag_set.flags = BLK_MQ_F_SHOULD_MERGE; rbd_dev->tag_set.nr_hw_queues = num_present_cpus(); rbd_dev->tag_set.cmd_size = sizeof(struct rbd_img_request); diff --git a/drivers/block/rnbd/rnbd-clt.c b/drivers/block/rnbd/rnbd-clt.c index c34695d2eea7..82467ecde7ec 100644 --- a/drivers/block/rnbd/rnbd-clt.c +++ b/drivers/block/rnbd/rnbd-clt.c @@ -1209,8 +1209,7 @@ static int setup_mq_tags(struct rnbd_clt_session *sess) tag_set->ops = &rnbd_mq_ops; tag_set->queue_depth = sess->queue_depth; tag_set->numa_node = NUMA_NO_NODE; - tag_set->flags = BLK_MQ_F_SHOULD_MERGE | - BLK_MQ_F_TAG_QUEUE_SHARED; + tag_set->flags = BLK_MQ_F_TAG_QUEUE_SHARED; tag_set->cmd_size = sizeof(struct rnbd_iu) + RNBD_RDMA_SGL_SIZE; /* for HCTX_TYPE_DEFAULT, HCTX_TYPE_READ, HCTX_TYPE_POLL */ diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c index 2d38331ee667..88dcae6ec575 100644 --- a/drivers/block/sunvdc.c +++ b/drivers/block/sunvdc.c @@ -829,7 +829,7 @@ static int probe_disk(struct vdc_port *port) } err = blk_mq_alloc_sq_tag_set(&port->tag_set, &vdc_mq_ops, - VDC_TX_RING_SIZE, BLK_MQ_F_SHOULD_MERGE); + VDC_TX_RING_SIZE, 0); if (err) return err; diff --git a/drivers/block/swim.c b/drivers/block/swim.c index be4ac58afe41..eda33c5eb5e2 100644 --- a/drivers/block/swim.c +++ b/drivers/block/swim.c @@ -818,7 +818,7 @@ static int swim_floppy_init(struct swim_priv *swd) for (drive = 0; drive < swd->floppy_count; drive++) { err = blk_mq_alloc_sq_tag_set(&swd->unit[drive].tag_set, - &swim_mq_ops, 2, BLK_MQ_F_SHOULD_MERGE); + &swim_mq_ops, 2, 0); if (err) goto exit_put_disks; diff --git a/drivers/block/swim3.c b/drivers/block/swim3.c index 90be1017f7bf..9914153b365b 100644 --- a/drivers/block/swim3.c +++ b/drivers/block/swim3.c @@ -1208,8 +1208,7 @@ static int swim3_attach(struct macio_dev *mdev, fs = &floppy_states[floppy_count]; memset(fs, 0, sizeof(*fs)); - rc = blk_mq_alloc_sq_tag_set(&fs->tag_set, &swim3_mq_ops, 2, - BLK_MQ_F_SHOULD_MERGE); + rc = blk_mq_alloc_sq_tag_set(&fs->tag_set, &swim3_mq_ops, 2, 0); if (rc) goto out_unregister; diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c index d4aed12dd436..6c16cb798fdd 100644 --- a/drivers/block/ublk_drv.c +++ b/drivers/block/ublk_drv.c @@ -2205,7 +2205,6 @@ static int ublk_add_tag_set(struct ublk_device *ub) ub->tag_set.queue_depth = ub->dev_info.queue_depth; ub->tag_set.numa_node = NUMA_NO_NODE; ub->tag_set.cmd_size = sizeof(struct ublk_rq_data); - ub->tag_set.flags = BLK_MQ_F_SHOULD_MERGE; ub->tag_set.driver_data = ub; return blk_mq_alloc_tag_set(&ub->tag_set); } diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index ed514ff46dc8..71a7ffeafb32 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -1481,7 +1481,6 @@ static int virtblk_probe(struct virtio_device *vdev) vblk->tag_set.ops = &virtio_mq_ops; vblk->tag_set.queue_depth = queue_depth; vblk->tag_set.numa_node = NUMA_NO_NODE; - vblk->tag_set.flags = BLK_MQ_F_SHOULD_MERGE; vblk->tag_set.cmd_size = sizeof(struct virtblk_req) + sizeof(struct scatterlist) * VIRTIO_BLK_INLINE_SG_CNT; diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 59ce113b882a..edcd08a9dcef 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -1131,7 +1131,6 @@ static int xlvbd_alloc_gendisk(blkif_sector_t capacity, } else info->tag_set.queue_depth = BLK_RING_SIZE(info); info->tag_set.numa_node = NUMA_NO_NODE; - info->tag_set.flags = BLK_MQ_F_SHOULD_MERGE; info->tag_set.cmd_size = sizeof(struct blkif_req); info->tag_set.driver_data = info; diff --git a/drivers/block/z2ram.c b/drivers/block/z2ram.c index 4b7219be1bb8..8c1c7f4211eb 100644 --- a/drivers/block/z2ram.c +++ b/drivers/block/z2ram.c @@ -354,7 +354,6 @@ static int __init z2_init(void) tag_set.nr_maps = 1; tag_set.queue_depth = 16; tag_set.numa_node = NUMA_NO_NODE; - tag_set.flags = BLK_MQ_F_SHOULD_MERGE; ret = blk_mq_alloc_tag_set(&tag_set); if (ret) goto out_unregister_blkdev; diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c index 64b097e830d4..85aceab5eac6 100644 --- a/drivers/cdrom/gdrom.c +++ b/drivers/cdrom/gdrom.c @@ -777,7 +777,7 @@ static int probe_gdrom(struct platform_device *devptr) probe_gdrom_setupcd(); err = blk_mq_alloc_sq_tag_set(&gd.tag_set, &gdrom_mq_ops, 1, - BLK_MQ_F_SHOULD_MERGE | BLK_MQ_F_BLOCKING); + BLK_MQ_F_BLOCKING); if (err) goto probe_fail_free_cd_info; diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c index 499f8cc8a39f..e23076f7ece2 100644 --- a/drivers/md/dm-rq.c +++ b/drivers/md/dm-rq.c @@ -547,7 +547,7 @@ int dm_mq_init_request_queue(struct mapped_device *md, struct dm_table *t) md->tag_set->ops = &dm_mq_ops; md->tag_set->queue_depth = dm_get_blk_mq_queue_depth(); md->tag_set->numa_node = md->numa_node_id; - md->tag_set->flags = BLK_MQ_F_SHOULD_MERGE | BLK_MQ_F_STACKING; + md->tag_set->flags = BLK_MQ_F_STACKING; md->tag_set->nr_hw_queues = dm_get_blk_mq_nr_hw_queues(); md->tag_set->driver_data = md; diff --git a/drivers/memstick/core/ms_block.c b/drivers/memstick/core/ms_block.c index 20a2466bec23..5b617c1f6789 100644 --- a/drivers/memstick/core/ms_block.c +++ b/drivers/memstick/core/ms_block.c @@ -2094,8 +2094,7 @@ static int msb_init_disk(struct memstick_dev *card) if (msb->disk_id < 0) return msb->disk_id; - rc = blk_mq_alloc_sq_tag_set(&msb->tag_set, &msb_mq_ops, 2, - BLK_MQ_F_SHOULD_MERGE); + rc = blk_mq_alloc_sq_tag_set(&msb->tag_set, &msb_mq_ops, 2, 0); if (rc) goto out_release_id; diff --git a/drivers/memstick/core/mspro_block.c b/drivers/memstick/core/mspro_block.c index 13b317c56069..634d343b6bdb 100644 --- a/drivers/memstick/core/mspro_block.c +++ b/drivers/memstick/core/mspro_block.c @@ -1139,8 +1139,7 @@ static int mspro_block_init_disk(struct memstick_dev *card) if (disk_id < 0) return disk_id; - rc = blk_mq_alloc_sq_tag_set(&msb->tag_set, &mspro_mq_ops, 2, - BLK_MQ_F_SHOULD_MERGE); + rc = blk_mq_alloc_sq_tag_set(&msb->tag_set, &mspro_mq_ops, 2, 0); if (rc) goto out_release_id; diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c index 4d6844261912..ab662f502fe7 100644 --- a/drivers/mmc/core/queue.c +++ b/drivers/mmc/core/queue.c @@ -441,7 +441,7 @@ struct gendisk *mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, else mq->tag_set.queue_depth = MMC_QUEUE_DEPTH; mq->tag_set.numa_node = NUMA_NO_NODE; - mq->tag_set.flags = BLK_MQ_F_SHOULD_MERGE | BLK_MQ_F_BLOCKING; + mq->tag_set.flags = BLK_MQ_F_BLOCKING; mq->tag_set.nr_hw_queues = 1; mq->tag_set.cmd_size = sizeof(struct mmc_queue_req); mq->tag_set.driver_data = mq; diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c index 47ead84407cd..ee7e1d908986 100644 --- a/drivers/mtd/mtd_blkdevs.c +++ b/drivers/mtd/mtd_blkdevs.c @@ -329,7 +329,7 @@ int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new) goto out_list_del; ret = blk_mq_alloc_sq_tag_set(new->tag_set, &mtd_mq_ops, 2, - BLK_MQ_F_SHOULD_MERGE | BLK_MQ_F_BLOCKING); + BLK_MQ_F_BLOCKING); if (ret) goto out_kfree_tag_set; diff --git a/drivers/mtd/ubi/block.c b/drivers/mtd/ubi/block.c index 60d0155be869..2836905f0152 100644 --- a/drivers/mtd/ubi/block.c +++ b/drivers/mtd/ubi/block.c @@ -383,7 +383,7 @@ int ubiblock_create(struct ubi_volume_info *vi) dev->tag_set.ops = &ubiblock_mq_ops; dev->tag_set.queue_depth = 64; dev->tag_set.numa_node = NUMA_NO_NODE; - dev->tag_set.flags = BLK_MQ_F_SHOULD_MERGE | BLK_MQ_F_BLOCKING; + dev->tag_set.flags = BLK_MQ_F_BLOCKING; dev->tag_set.cmd_size = sizeof(struct ubiblock_pdu); dev->tag_set.driver_data = dev; dev->tag_set.nr_hw_queues = 1; diff --git a/drivers/nvme/host/apple.c b/drivers/nvme/host/apple.c index 4319ab50c10d..83c60468542c 100644 --- a/drivers/nvme/host/apple.c +++ b/drivers/nvme/host/apple.c @@ -1275,7 +1275,6 @@ static int apple_nvme_alloc_tagsets(struct apple_nvme *anv) anv->tagset.timeout = NVME_IO_TIMEOUT; anv->tagset.numa_node = NUMA_NO_NODE; anv->tagset.cmd_size = sizeof(struct apple_nvme_iod); - anv->tagset.flags = BLK_MQ_F_SHOULD_MERGE; anv->tagset.driver_data = &anv->ioq; ret = blk_mq_alloc_tag_set(&anv->tagset); diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index d169a30eb935..6c98a1eb7978 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -4639,7 +4639,6 @@ int nvme_alloc_io_tag_set(struct nvme_ctrl *ctrl, struct blk_mq_tag_set *set, /* Reserved for fabric connect */ set->reserved_tags = 1; set->numa_node = ctrl->numa_node; - set->flags = BLK_MQ_F_SHOULD_MERGE; if (ctrl->ops->flags & NVME_F_BLOCKING) set->flags |= BLK_MQ_F_BLOCKING; set->cmd_size = cmd_size; diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c index 6da47a65af61..28e92fad0ca1 100644 --- a/drivers/s390/block/dasd_genhd.c +++ b/drivers/s390/block/dasd_genhd.c @@ -56,7 +56,6 @@ int dasd_gendisk_alloc(struct dasd_block *block) block->tag_set.cmd_size = sizeof(struct dasd_ccw_req); block->tag_set.nr_hw_queues = nr_hw_queues; block->tag_set.queue_depth = queue_depth; - block->tag_set.flags = BLK_MQ_F_SHOULD_MERGE; block->tag_set.numa_node = NUMA_NO_NODE; rc = blk_mq_alloc_tag_set(&block->tag_set); if (rc) diff --git a/drivers/s390/block/scm_blk.c b/drivers/s390/block/scm_blk.c index 3fcfe029db1b..91bbe9d2e5ac 100644 --- a/drivers/s390/block/scm_blk.c +++ b/drivers/s390/block/scm_blk.c @@ -461,7 +461,6 @@ int scm_blk_dev_setup(struct scm_blk_dev *bdev, struct scm_device *scmdev) bdev->tag_set.cmd_size = sizeof(blk_status_t); bdev->tag_set.nr_hw_queues = nr_requests; bdev->tag_set.queue_depth = nr_requests_per_io * nr_requests; - bdev->tag_set.flags = BLK_MQ_F_SHOULD_MERGE; bdev->tag_set.numa_node = NUMA_NO_NODE; ret = blk_mq_alloc_tag_set(&bdev->tag_set); diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index adee6f60c966..5cf124e13097 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -2065,7 +2065,6 @@ int scsi_mq_setup_tags(struct Scsi_Host *shost) tag_set->queue_depth = shost->can_queue; tag_set->cmd_size = cmd_size; tag_set->numa_node = dev_to_node(shost->dma_dev); - tag_set->flags = BLK_MQ_F_SHOULD_MERGE; tag_set->flags |= BLK_ALLOC_POLICY_TO_MQ_FLAG(shost->hostt->tag_alloc_policy); if (shost->queuecommand_may_block) diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index 769eab6247d4..7f6c482ebf54 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -668,7 +668,6 @@ struct blk_mq_ops { /* Keep hctx_flag_name[] in sync with the definitions below */ enum { - BLK_MQ_F_SHOULD_MERGE = 1 << 0, BLK_MQ_F_TAG_QUEUE_SHARED = 1 << 1, /* * Set when this device requires underlying blk-mq device for