linux/block
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: df87eb0fce ("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 4f1e9630af ("blk-throtl: optimize IOPS throttle for large IO scenarios") 2022-02-16 19:42:28 -07:00
blk-throttle.h block: revert 4f1e9630af ("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