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Song Liu 46384252a8 blk-mq: allow 4x BLK_MAX_REQUEST_COUNT at blk_plug for multiple_queues 
[ Upstream commit 7f2a6a69f7ced6db8220298e0497cf60482a9d4b ]

Limiting number of request to BLK_MAX_REQUEST_COUNT at blk_plug hurts
performance for large md arrays. [1] shows resync speed of md array drops
for md array with more than 16 HDDs.

Fix this by allowing more request at plug queue. The multiple_queue flag
is used to only apply higher limit to multiple queue cases.

[1] https://lore.kernel.org/linux-raid/CAFDAVznS71BXW8Jxv6k9dXc2iR3ysX3iZRBww_rzA8WifBFxGg@mail.gmail.com/
Tested-by: Marcin Wanat <marcin.wanat@gmail.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-09-26 14:10:25 +02:00
..
partitions block-5.14-2021-08-07 2021-08-07 10:26:21 -07:00
badblocks.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
bfq-cgroup.c block, bfq: merge bursts of newly-created queues 2021-03-25 10:50:07 -06:00
bfq-iosched.c block, bfq: honor already-setup queue merges 2021-09-22 12:39:27 +02:00
bfq-iosched.h block, bfq: merge bursts of newly-created queues 2021-03-25 10:50:07 -06:00
bfq-wf2q.c block, bfq: always inject I/O of queues blocked by wakers 2021-03-25 10:50:07 -06:00
bio-integrity.c block: remove BLK_BOUNCE_ISA support 2021-04-06 09:28:17 -06:00
bio.c bio: fix page leak bio_add_hw_page failure 2021-09-15 10:02:33 +02:00
blk-cgroup-rwstat.c blk-cgroup: Fix the recursive blkg rwstat 2021-03-05 11:32:15 -07:00
blk-cgroup-rwstat.h blk-cgroup: separate out blkg_rwstat under CONFIG_BLK_CGROUP_RWSTAT 2019-11-07 12:28:13 -07:00
blk-cgroup.c blkcg: fix memory leak in blk_iolatency_init 2021-09-22 12:39:24 +02:00
blk-core.c blk-mq: fix kernel panic during iterating over flush request 2021-08-17 08:33:32 -06:00
blk-crypto-fallback.c block: rename BIO_MAX_PAGES to BIO_MAX_VECS 2021-03-11 07:47:48 -07:00
blk-crypto-internal.h block: make blk_crypto_rq_bio_prep() able to fail 2020-10-05 10:47:43 -06:00
blk-crypto.c blk-crypto: fix check for too-large dun_bytes 2021-09-15 10:02:09 +02:00
blk-exec.c block: return errors from blk_execute_rq() 2021-06-30 15:35:45 -06:00
blk-flush.c blk-mq: fix is_flush_rq 2021-08-17 20:17:34 -06:00
blk-integrity.c block: remove the unused blk_integrity_merge_bio export 2020-10-06 07:29:53 -06:00
blk-ioc.c block: remove retry loop in ioc_release_fn() 2020-07-16 10:22:15 -06:00
blk-iocost.c blk-iocost: fix lockdep warning on blkcg->lock 2021-08-09 20:00:26 -06:00
blk-iolatency.c blk-iolatency: error out if blk_get_queue() failed in iolatency_set_limit() 2021-08-05 11:18:13 -06:00
blk-ioprio.c block: Introduce the ioprio rq-qos policy 2021-06-21 15:03:40 -06:00
blk-ioprio.h block: Introduce the ioprio rq-qos policy 2021-06-21 15:03:40 -06:00
blk-lib.c block: export blk_next_bio() 2021-06-17 15:51:20 +02:00
blk-map.c block: remove an incorrect check from blk_rq_append_bio 2021-04-12 06:45:12 -06:00
blk-merge.c block: return ELEVATOR_DISCARD_MERGE if possible 2021-09-15 10:02:07 +02:00
blk-mq-cpumap.c blk-mq: remove the calling of local_memory_node() 2020-10-20 07:08:17 -06:00
blk-mq-debugfs-zoned.c block: Cleanup license notice 2019-01-17 21:21:40 -07:00
blk-mq-debugfs.c block: Introduce the ioprio rq-qos policy 2021-06-21 15:03:40 -06:00
blk-mq-debugfs.h blk-mq: no need to check return value of debugfs_create functions 2019-06-13 03:00:30 -06:00
blk-mq-pci.c block: Fix blk_mq_*_map_queues() kernel-doc headers 2019-05-31 15:12:34 -06:00
blk-mq-rdma.c block: Fix blk_mq_*_map_queues() kernel-doc headers 2019-05-31 15:12:34 -06:00
blk-mq-sched.c blk-mq-sched: Fix blk_mq_sched_alloc_tags() error handling 2021-07-27 16:44:38 -06:00
blk-mq-sched.h blk: Fix lock inversion between ioc lock and bfqd lock 2021-06-24 18:43:55 -06:00
blk-mq-sysfs.c blk-mq: move cancel of hctx->run_work to the front of blk_exit_queue 2020-10-09 12:46:28 -06:00
blk-mq-tag.c blk-mq: Use request queue-wide tags for tagset-wide sbitmap 2021-05-24 06:47:22 -06:00
blk-mq-tag.h blk-mq: Some tag allocation code refactoring 2021-05-24 06:47:22 -06:00
blk-mq-virtio.c blk-mq: Fix typo in comment 2020-03-17 20:55:21 +01:00
blk-mq.c blk-mq: allow 4x BLK_MAX_REQUEST_COUNT at blk_plug for multiple_queues 2021-09-26 14:10:25 +02:00
blk-mq.h blk: Fix lock inversion between ioc lock and bfqd lock 2021-06-24 18:43:55 -06:00
blk-pm.c scsi: block: Fix a race in the runtime power management code 2020-12-09 11:41:41 -05:00
blk-pm.h block: Remove unused blk_pm_*() function definitions 2021-02-22 06:33:48 -07:00
blk-rq-qos.c rq-qos: fix missed wake-ups in rq_qos_throttle try two 2021-06-08 15:12:57 -06:00
blk-rq-qos.h block: Introduce the ioprio rq-qos policy 2021-06-21 15:03:40 -06:00
blk-settings.c block-5.13-2021-05-09 2021-05-09 13:25:14 -07:00
blk-stat.c blk-stat: make q->stats->lock irqsafe 2020-09-01 16:48:46 -06:00
blk-stat.h block: deactivate blk_stat timer in wbt_disable_default() 2018-12-12 06:47:51 -07:00
blk-sysfs.c block: mark queue init done at the end of blk_register_queue 2021-06-16 08:41:50 -06:00
blk-throttle.c blk-throttle: fix UAF by deleteing timer in blk_throtl_exit() 2021-09-26 14:10:24 +02:00
blk-timeout.c block: blk-timeout: delete duplicated word 2020-07-31 16:29:47 -06:00
blk-wbt.c blk-wbt: make sure throttle is enabled properly 2021-06-21 15:03:41 -06:00
blk-wbt.h blk-wbt: introduce a new disable state to prevent false positive by rwb_enabled() 2021-06-21 15:03:41 -06:00
blk-zoned.c blk-zoned: allow BLKREPORTZONE without CAP_SYS_ADMIN 2021-09-18 13:43:20 +02:00
blk.h blk-throtl: optimize IOPS throttle for large IO scenarios 2021-09-15 10:02:03 +02:00
bounce.c block: stop calling blk_queue_bounce for passthrough requests 2021-04-06 09:28:18 -06:00
bsg-lib.c block-5.14-2021-07-08 2021-07-09 12:05:33 -07:00
bsg.c scsi: bsg: Remove support for SCSI_IOCTL_SEND_COMMAND 2021-09-18 13:43:26 +02:00
cmdline-parser.c
disk-events.c block: add the events* attributes to disk_attrs 2021-06-24 12:00:22 -06:00
elevator.c block: return ELEVATOR_DISCARD_MERGE if possible 2021-09-15 10:02:07 +02:00
genhd.c block: genhd: don't call blkdev_show() with major_names_lock held 2021-09-26 14:10:24 +02:00
ioctl.c block: move bd_part_count to struct gendisk 2021-06-01 07:45:27 -06:00
ioprio.c block: Fix sys_ioprio_set(.which=IOPRIO_WHO_PGRP) task iteration 2021-04-08 13:43:53 -06:00
Kconfig scsi: blkcg: Fix application ID config options 2021-07-04 11:44:22 -07:00
Kconfig.iosched Revert "block/mq-deadline: Add cgroup support" 2021-08-11 13:47:26 -06:00
keyslot-manager.c - Fix DM integrity's HMAC support to provide enhanced security of 2021-02-22 10:22:54 -08:00
kyber-iosched.c kyber: make trace_block_rq call consistent with documentation 2021-08-06 16:40:47 -06:00
Makefile Revert "block/mq-deadline: Add cgroup support" 2021-08-11 13:47:26 -06:00
mq-deadline.c block: return ELEVATOR_DISCARD_MERGE if possible 2021-09-15 10:02:07 +02:00
opal_proto.h block: sed-opal: Change the check condition for regular session validity 2020-03-12 08:00:10 -06:00
scsi_ioctl.c block-5.14-2021-07-08 2021-07-09 12:05:33 -07:00
sed-opal.c block: sed-opal: Change the check condition for regular session validity 2020-03-12 08:00:10 -06:00
t10-pi.c block: Allow t10-pi to be modular 2020-01-06 20:59:04 -07:00