Pavel Begunkov 7746564793 block: fix hctx checks for batch allocation ... When there are no read queues read requests will be assigned a default queue on allocation. However, blk_mq_get_cached_request() is not prepared for that and will fail all attempts to grab read requests from the cache. Worst case it doubles the number of requests allocated, roughly half of which will be returned by blk_mq_free_plug_rqs(). It only affects batched allocations and so is io_uring specific. For reference, QD8 t/io_uring benchmark improves by 20-35%. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/80d4511011d7d4751b4cf6375c4e38f237d935e3.1673955390.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>		2023-01-17 09:56:52 -07:00
..
partitions	block: don't add partitions if GD_SUPPRESS_PART_SCAN is set	2022-09-03 11:29:03 -06:00
badblocks.c	block/badblocks: Remove redundant assignments	2022-04-23 07:15:26 -06:00
bdev.c	block: bdev & blktrace: use consistent function doc. notation	2022-12-01 09:16:46 -07:00
bfq-cgroup.c	block, bfq: switch 'bfqg->ref' to use atomic refcount apis	2023-01-15 20:53:27 -07:00
bfq-iosched.c	block, bfq: fix uaf for bfqq in bfq_exit_icq_bfqq	2022-12-26 12:09:56 -07:00
bfq-iosched.h	block, bfq: switch 'bfqg->ref' to use atomic refcount apis	2023-01-15 20:53:27 -07:00
bfq-wf2q.c	block, bfq: only do counting of pending-request for BFQ_GROUP_IOSCHED	2022-12-15 05:11:59 -07:00
bio-integrity.c	block: pass struct queue_limits to the bio splitting helpers	2022-08-02 21:08:53 -06:00
bio.c	Revert "block: bio_copy_data_iter"	2023-01-04 14:43:27 -07:00
blk-cgroup-fc-appid.c	cgroup: Homogenize cgroup_get_from_id() return value	2022-08-26 10:57:41 -10:00
blk-cgroup-rwstat.c	blk-cgroup: Fix the recursive blkg rwstat	2021-03-05 11:32:15 -07:00
blk-cgroup-rwstat.h	block: Use the new blk_opf_t type	2022-07-14 12:14:30 -06:00
blk-cgroup.c	blk-cgroup: fix missing pd_online_fn() while activating policy	2023-01-16 19:04:07 -07:00
blk-cgroup.h	blk-cgroup: Optimize blkcg_rstat_flush()	2022-11-16 16:58:44 -07:00
blk-core.c	block: Drop spurious might_sleep() from blk_put_queue()	2023-01-08 20:29:28 -07:00
blk-crypto-fallback.c	treewide: use get_random_bytes() when possible	2022-10-11 17:42:58 -06:00
blk-crypto-internal.h	blk-crypto: pass a gendisk to blk_crypto_sysfs_{,un}register	2022-11-30 11:09:00 -07:00
blk-crypto-profile.c	blk-crypto: Add a missing include directive	2022-11-23 10:38:54 -07:00
blk-crypto-sysfs.c	block: untangle request_queue refcounting from sysfs	2022-11-30 11:09:00 -07:00
blk-crypto.c	for-6.2/block-2022-12-08	2022-12-13 10:43:59 -08:00
blk-flush.c	block: change request end_io handler to pass back a return value	2022-09-30 07:49:09 -06:00
blk-ia-ranges.c	block: untangle request_queue refcounting from sysfs	2022-11-30 11:09:00 -07:00
blk-integrity.c	blk-crypto: remove blk_crypto_unregister()	2021-11-29 06:38:51 -07:00
blk-ioc.c	block: fix default IO priority handling again	2022-06-27 06:29:12 -06:00
blk-iocost.c	block/blk-iocost (gcc13): keep large values in a new enum	2022-12-14 09:56:10 -07:00
blk-iolatency.c	block: Replace struct rq_depth with unsigned int in struct iolatency_grp	2022-11-01 09:12:24 -06:00
blk-ioprio.c	blk-ioprio: pass a gendisk to blk_ioprio_init and blk_ioprio_exit	2022-09-26 19:09:31 -06:00
blk-ioprio.h	blk-ioprio: pass a gendisk to blk_ioprio_init and blk_ioprio_exit	2022-09-26 19:09:31 -06:00
blk-lib.c	blk-lib: fix blkdev_issue_secure_erase	2022-09-15 00:25:17 -06:00
blk-map.c	block: set FOLL_PCI_P2PDMA in bio_map_user_iov()	2022-11-09 11:29:21 -07:00
blk-merge.c	block: don't allow splitting of a REQ_NOWAIT bio	2023-01-04 13:24:44 -07:00
blk-mq-cpumap.c	block: Change the return type of blk_mq_map_queues() into void	2022-08-22 10:07:53 -06:00
blk-mq-debugfs-zoned.c	block: move zone related fields to struct gendisk	2022-07-06 06:46:26 -06:00
blk-mq-debugfs.c	for-6.1/block-2022-10-03	2022-10-07 09:19:14 -07:00
blk-mq-debugfs.h	block: remove per-disk debugfs files in blk_unregister_queue	2022-06-17 07:31:05 -06:00
blk-mq-pci.c	block: Change the return type of blk_mq_map_queues() into void	2022-08-22 10:07:53 -06:00
blk-mq-rdma.c	block: Change the return type of blk_mq_map_queues() into void	2022-08-22 10:07:53 -06:00
blk-mq-sched.c	block: split elevator_switch	2022-11-01 09:12:24 -06:00
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: fix possible memleak when register 'hctx' failed	2022-11-25 06:34:03 -07:00
blk-mq-tag.c	sbitmap: fix batched wait_cnt accounting	2022-09-12 00:10:34 -06:00
blk-mq-tag.h	blk-mq: blk_mq_tag_busy is no need to return a value	2022-06-27 06:29:12 -06:00
blk-mq-virtio.c	block: Change the return type of blk_mq_map_queues() into void	2022-08-22 10:07:53 -06:00
blk-mq.c	block: fix hctx checks for batch allocation	2023-01-17 09:56:52 -07:00
blk-mq.h	blk-mq: move the srcu_struct used for quiescing to the tagset	2022-11-02 08:35:34 -06:00
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	block/rq_qos: Use atomic_try_cmpxchg in atomic_inc_below	2022-07-12 14:38:52 -06:00
blk-rq-qos.h	block/blk-rq-qos: delete useless enmu RQ_QOS_IOPRIO	2022-09-21 19:50:53 -06:00
blk-settings.c	for-6.2/block-2022-12-08	2022-12-13 10:43:59 -08:00
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: untangle request_queue refcounting from sysfs	2022-11-30 11:09:00 -07:00
blk-throttle.c	blk-throttle: Use more suitable time_after check for update of slice_start	2022-12-05 13:45:31 -07:00
blk-throttle.h	blk-throttle: pass a gendisk to blk_throtl_cancel_bios	2022-09-26 19:17:28 -06:00
blk-timeout.c	block: blk-timeout: delete duplicated word	2020-07-31 16:29:47 -06:00
blk-wbt.c	blk-wbt: don't enable throttling if default elevator is bfq	2022-10-23 18:59:17 -06:00
blk-wbt.h	blk-wbt: don't show valid wbt_lat_usec in sysfs while wbt is disabled	2022-10-23 18:59:17 -06:00
blk-zoned.c	block: adapt blk_mq_plug() to not plug for writes that require a zone lock	2022-09-29 07:45:47 -06:00
blk.h	for-6.2/block-2022-12-08	2022-12-13 10:43:59 -08:00
bounce.c	block: change the blk_queue_bounce calling convention	2022-08-02 17:22:54 -06:00
bsg-lib.c	blk-mq: move the call to blk_put_queue out of blk_mq_destroy_queue	2022-10-25 08:25:10 -06:00
bsg.c	block: untangle request_queue refcounting from sysfs	2022-11-30 11:09:00 -07:00
disk-events.c	block: remove genhd.h	2022-02-02 07:49:59 -07:00
elevator.c	block: untangle request_queue refcounting from sysfs	2022-11-30 11:09:00 -07:00
elevator.h	block: add proper helpers for elevator_type module refcount management	2022-10-23 18:59:17 -06:00
fops.c	block: remove blkdev_writepages	2022-11-16 11:32:53 -07:00
genhd.c	Revert "block: remove devnode callback from struct block_device_operations"	2023-01-04 14:44:02 -07:00
holder.c	block: don't allow a disk link holder to itself	2022-11-16 15:19:56 -07:00
ioctl.c	block: Do not reread partition table on exclusively open device	2022-12-01 07:44:03 -07:00
ioprio.c	block: Fix handling of tasks without ioprio in ioprio_get(2)	2022-06-27 06:29:12 -06:00
Kconfig	block: Remove "select SRCU"	2023-01-05 08:50:10 -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/kyber: Use the new blk_opf_t type	2022-07-14 12:14:30 -06:00
Makefile	blk-cgroup: move blkcg_{get,set}_fc_appid out of line	2022-05-02 14:06:20 -06:00
mq-deadline.c	block: mq-deadline: Rename deadline_is_seq_writes()	2022-11-28 19:27:45 -07:00
opal_proto.h	block: sed-opal: Add ioctl to return device status	2022-08-22 07:52:51 -06:00
sed-opal.c	for-6.2/block-2022-12-08	2022-12-13 10:43:59 -08:00
t10-pi.c	block: add pi for extended integrity	2022-03-07 12:48:35 -07:00