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Jens Axboe 26fed4ac4e block: flush plug based on hardware and software queue order 
We used to sort the plug list if we had multiple queues before dispatching
requests to the IO scheduler. This usually isn't needed, but for certain
workloads that interleave requests to disks, it's a less efficient to
process the plug list one-by-one if everything is interleaved.

Don't sort the list, but skip through it and flush out entries that have
the same target at the same time.

Fixes: df87eb0fce8f ("block: get rid of plug list sorting")
Reported-and-tested-by: Song Liu <song@kernel.org>
Reviewed-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-03-11 11:08:34 -07:00
..
partitions
block: remove genhd.h
2022-02-02 07:49:59 -07:00
badblocks.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
bdev.c
block: remove redundant semicolon
2022-02-27 14:52:36 -07:00
bfq-cgroup.c
block, bfq: don't move oom_bfqq
2022-02-18 06:13:00 -07:00
bfq-iosched.c
Revert "Revert "block, bfq: honor already-setup queue merges""
2022-03-08 17:56:45 -07:00
bfq-iosched.h
block, bfq: cleanup bfq_bfqq_to_bfqg()
2022-02-18 06:13:00 -07:00
bfq-wf2q.c
block, bfq: cleanup bfq_bfqq_to_bfqg()
2022-02-18 06:13:00 -07:00
bio-integrity.c
block: clone crypto and integrity data in __bio_clone_fast
2022-02-04 07:43:18 -07:00
bio.c
block: remove bio_devname
2022-03-07 06:42:33 -07:00
blk-cgroup-rwstat.c
blk-cgroup: Fix the recursive blkg rwstat
2021-03-05 11:32:15 -07:00
blk-cgroup-rwstat.h
block: partition include/linux/blk-cgroup.h
2022-02-11 10:02:41 -07:00
blk-cgroup.c
blk-cgroup: set blkg iostat after percpu stat aggregation
2022-02-15 14:13:12 -07:00
blk-cgroup.h
block: partition include/linux/blk-cgroup.h
2022-02-11 10:02:41 -07:00
blk-core.c
block: move q_usage_counter release into blk_queue_release
2022-03-08 19:40:01 -07:00
blk-crypto-fallback.c
block: partition include/linux/blk-cgroup.h
2022-02-11 10:02:41 -07:00
blk-crypto-internal.h
blk-crypto: show crypto capabilities in sysfs
2022-02-28 06:40:23 -07:00
blk-crypto-profile.c
blk-crypto: remove blk_crypto_unregister()
2021-11-29 06:38:51 -07:00
blk-crypto-sysfs.c
blk-crypto: show crypto capabilities in sysfs
2022-02-28 06:40:23 -07:00
blk-crypto.c
blk-crypto: show crypto capabilities in sysfs
2022-02-28 06:40:23 -07:00
blk-flush.c
block: pass a block_device and opf to bio_init
2022-02-02 07:49:59 -07:00
blk-ia-ranges.c
block: fix memory leak in disk_register_independent_access_ranges
2022-01-23 09:13:09 -07:00
blk-integrity.c
blk-crypto: remove blk_crypto_unregister()
2021-11-29 06:38:51 -07:00
blk-ioc.c
block: drop needless assignment in set_task_ioprio()
2021-12-23 07:10:07 -07:00
blk-iocost.c
block: partition include/linux/blk-cgroup.h
2022-02-11 10:02:41 -07:00
blk-iolatency.c
block: partition include/linux/blk-cgroup.h
2022-02-11 10:02:41 -07:00
blk-ioprio.c
block: partition include/linux/blk-cgroup.h
2022-02-11 10:02:41 -07:00
blk-ioprio.h
block: Introduce the ioprio rq-qos policy
2021-06-21 15:03:40 -06:00
blk-lib.c
blk-lib: don't check bdev_get_queue() NULL check
2022-02-15 07:51:46 -07:00
blk-map.c
Merge branch 'akpm' (patches from Andrew)
2021-09-03 10:08:28 -07:00
blk-merge.c
block: ensure plug merging checks the correct queue at least once
2022-03-11 11:08:21 -07:00
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
blk-mq: prepare for implementing hctx table via xarray
2022-03-08 17:57:19 -07:00
blk-mq-debugfs.h
blk-mq: manage hctx map via xarray
2022-03-08 19:39:38 -07:00
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: prepare for implementing hctx table via xarray
2022-03-08 17:57:19 -07:00
blk-mq-sched.h
block: move blk_mq_sched_assign_ioc to blk-ioc.c
2021-11-29 06:41:29 -07:00
blk-mq-sysfs.c
blk-mq: prepare for implementing hctx table via xarray
2022-03-08 17:57:19 -07:00
blk-mq-tag.c
blk-mq: manage hctx map via xarray
2022-03-08 19:39:38 -07:00
blk-mq-tag.h
blk-mq: Delete busy_iter_fn
2021-12-06 13:18:47 -07:00
blk-mq-virtio.c
blk-mq: Fix typo in comment
2020-03-17 20:55:21 +01:00
blk-mq.c
block: flush plug based on hardware and software queue order
2022-03-11 11:08:34 -07:00
blk-mq.h
blk-mq: manage hctx map via xarray
2022-03-08 19:39:38 -07:00
blk-pm.c
scsi: block: pm: Always set request queue runtime active in blk_post_runtime_resume()
2021-12-22 23:38:29 -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: only mark bio as tracked if it really is tracked
2021-10-18 08:50:47 -06:00
blk-settings.c
block: Fix partition check for host-aware zoned block devices
2021-10-27 06:58:01 -06:00
blk-stat.c
block: make queue stat accounting a reference
2021-12-14 17:23:05 -07:00
blk-stat.h
block: make queue stat accounting a reference
2021-12-14 17:23:05 -07:00
blk-sysfs.c
block: move blk_exit_queue into disk_release
2022-03-08 19:40:01 -07:00
blk-throttle.c
block: revert 4f1e9630afe6 ("blk-throtl: optimize IOPS throttle for large IO scenarios")
2022-02-16 19:42:28 -07:00
blk-throttle.h
block: revert 4f1e9630afe6 ("blk-throtl: optimize IOPS throttle for large IO scenarios")
2022-02-16 19:42:28 -07:00
blk-timeout.c
block: blk-timeout: delete duplicated word
2020-07-31 16:29:47 -06:00
blk-wbt.c
blk-wbt: prevent NULL pointer dereference in wb_timer_fn
2021-10-19 06:13:41 -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
block: pass a block_device and opf to bio_init
2022-02-02 07:49:59 -07:00
blk.h
blk-mq: do not include passthrough requests in I/O accounting
2022-03-08 19:39:52 -07:00
bounce.c
block: partition include/linux/blk-cgroup.h
2022-02-11 10:02:41 -07:00
bsg-lib.c
block: remove the gendisk argument to blk_execute_rq
2021-11-29 06:41:29 -07:00
bsg.c
scsi: bsg: Fix device unregistration
2021-09-14 00:22:15 -04:00
disk-events.c
block: remove genhd.h
2022-02-02 07:49:59 -07:00
elevator.c
block: do more work in elevator_exit
2022-03-08 19:40:01 -07:00
elevator.h
block: move elevator.h to block/
2021-10-18 06:17:01 -06:00
fops.c
block: pass a block_device and opf to bio_init
2022-02-02 07:49:59 -07:00
genhd.c
block: move rq_qos_exit() into disk_release()
2022-03-08 19:40:01 -07:00
holder.c
block: remove genhd.h
2022-02-02 07:49:59 -07:00
ioctl.c
block: merge disk_scan_partitions and blkdev_reread_part
2021-11-29 06:35:21 -07:00
ioprio.c
for-5.17/block-2022-01-11
2022-01-12 10:26:52 -08:00
Kconfig
block: default BLOCK_LEGACY_AUTOLOAD to y
2022-02-27 14:49:23 -07:00
Kconfig.iosched
block: only build the icq tracking code when needed
2021-12-16 10:59:02 -07:00
kyber-iosched.c
block: make queue stat accounting a reference
2021-12-14 17:23:05 -07:00
Makefile
blk-crypto: show crypto capabilities in sysfs
2022-02-28 06:40:23 -07:00
mq-deadline.c
block: fix async_depth sysfs interface for mq-deadline
2022-01-20 10:54:02 -07:00
opal_proto.h
block: sed-opal: Change the check condition for regular session validity
2020-03-12 08:00:10 -06:00
sed-opal.c
block: remove genhd.h
2022-02-02 07:49:59 -07:00
t10-pi.c
block: move integrity handling out of <linux/blkdev.h>
2021-10-18 06:17:02 -06:00