iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
linux/block
History
Yu Kuai 1beabab88e blk-throttle: fix lower control under super low iops limit 
User will configure allowed iops limit in 1s, and calculate_io_allowed()
will calculate allowed iops in the slice by:

limit * HZ / throtl_slice

However, if limit is quite low, the result can be 0, then
allowed IO in the slice is 0, this will cause missing dispatch and
control will be lower than limit.

For example, set iops_limit to 5 with HD disk, and test will found that
iops will be 3.

This is usually not a big deal, because user will unlikely to configure
such low iops limit, however, this is still a problem in the extreme
scene.

Fix the problem by making sure the wait time calculated by
tg_within_iops_limit() should allow at least one IO to be dispatched.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20240618062108.3680835-1-yukuai1@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-06-28 14:55:02 -06:00
..
partitions
Compactifying bdev flags
2024-05-21 13:02:56 -07:00
badblocks.c
badblocks: avoid checking invalid range in badblocks_check()
2023-12-23 18:38:08 -07:00
bdev.c
block: Add atomic write support for statx
2024-06-20 15:19:17 -06:00
bfq-cgroup.c
block, bfq: remove blkg_path()
2024-06-18 09:22:45 -06:00
bfq-iosched.c
block: BFQ: Refactor bfq_exit_icq() to silence sparse warning
2024-06-16 15:30:32 -06:00
bfq-iosched.h
block, bfq: remove blkg_path()
2024-06-18 09:22:45 -06:00
bfq-wf2q.c
block, bfq: inject I/O to underutilized actuators
2023-01-29 15:18:33 -07:00
bio-integrity.c
block: set bip_vcnt correctly
2024-06-28 14:34:54 -06:00
bio.c
for-6.10-tag
2024-05-14 17:25:36 -07:00
blk-cgroup-fc-appid.c
block: Replace all non-returning strlcpy with strscpy
2023-06-01 09:13:31 -06:00
blk-cgroup-rwstat.c
blk-cgroup: use group allocation/free of per-cpu counters API
2024-04-03 09:10:17 -06:00
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: Properly propagate the iostat update up the hierarchy
2024-05-15 20:15:54 -06:00
blk-cgroup.h
block, bfq: remove blkg_path()
2024-06-18 09:22:45 -06:00
blk-core.c
block: Delete blk_queue_flag_test_and_set()
2024-06-27 12:43:27 -06:00
blk-crypto-fallback.c
block, fs: Restore the per-bio/request data lifetime fields
2024-02-06 14:31:05 +01:00
blk-crypto-internal.h
blk-crypto: remove blk_crypto_insert_cloned_request()
2023-03-16 09:35:09 -06:00
blk-crypto-profile.c
blk-crypto: use dynamic lock class for blk_crypto_profile::lock
2023-07-05 16:36:12 -06:00
blk-crypto-sysfs.c
block: make kobj_type structures constant
2023-02-09 09:38:16 -07:00
blk-crypto.c
blk-crypto: make blk_crypto_evict_key() more robust
2023-03-16 09:35:09 -06:00
blk-flush.c
block: move cache control settings out of queue->flags
2024-06-19 07:58:28 -06:00
blk-ia-ranges.c
block: make kobj_type structures constant
2023-02-09 09:38:16 -07:00
blk-integrity.c
block: cleanup flag_{show,store}
2024-06-17 10:13:37 -06:00
blk-ioc.c
blk-ioc: fix recursive spin_lock/unlock_irq() in ioc_clear_queue()
2023-06-07 07:51:00 -06:00
blk-iocost.c
blk-iocost: do not WARN if iocg was already offlined
2024-04-19 08:06:24 -06:00
blk-iolatency.c
block: add blk_time_get_ns() and blk_time_get() helpers
2024-02-05 10:07:22 -07:00
blk-ioprio.c
blk-ioprio: Introduce promote-to-rt policy
2023-06-06 22:26:26 -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
block: add a blk_alloc_discard_bio helper
2024-05-07 07:29:42 -06:00
blk-map.c
block: move dma_pad_mask into queue_limits
2024-06-26 09:37:35 -06:00
blk-merge.c
block: Add core atomic write support
2024-06-20 15:19:17 -06:00
blk-mq-cpumap.c
blk-mq: include <linux/blk-mq.h> in block/blk-mq.h
2023-04-13 06:52:29 -06:00
blk-mq-debugfs.c
block: move the skip_tagset_quiesce flag to queue_limits
2024-06-19 07:58:28 -06:00
blk-mq-debugfs.h
block: Replace zone_wlock debugfs entry with zone_wplugs entry
2024-04-17 08:44:03 -06:00
blk-mq-pci.c
blk-mq: include <linux/blk-mq.h> in block/blk-mq.h
2023-04-13 06:52:29 -06:00
blk-mq-sched.c
blk-mq: Remove the hctx 'run' debugfs attribute
2024-01-17 14:16:34 -07:00
blk-mq-sched.h
blk-mq: make sure elevator callbacks aren't called for passthrough request
2023-05-18 19:42:54 -06:00
blk-mq-sysfs.c
blk-mq: include <linux/blk-mq.h> in block/blk-mq.h
2023-04-13 06:52:29 -06:00
blk-mq-tag.c
for-6.5/block-2023-06-23
2023-06-26 12:47:20 -07:00
blk-mq-virtio.c
blk-mq: include <linux/blk-mq.h> in block/blk-mq.h
2023-04-13 06:52:29 -06:00
blk-mq.c
block: check bio alignment in blk_mq_submit_bio
2024-06-28 10:31:34 -06:00
blk-mq.h
block: Do not special-case plugging of zone write operations
2024-04-17 08:44:03 -06:00
blk-pm.c
block: Remove blk_set_runtime_active()
2023-11-20 10:22:40 -07:00
blk-pm.h
block: Remove unused blk_pm_*() function definitions
2021-02-22 06:33:48 -07:00
blk-rq-qos.c
block: correct stale comment in rq_qos_wait
2023-09-18 14:15:28 -06:00
blk-rq-qos.h
block: skip QUEUE_FLAG_STATS and rq-qos for passthrough io
2023-12-01 18:29:18 -07:00
blk-settings.c
block: move dma_pad_mask into queue_limits
2024-06-26 09:37:35 -06:00
blk-stat.c
blk-throttle: remove CONFIG_BLK_DEV_THROTTLING_LOW
2024-05-09 09:44:55 -06:00
blk-stat.h
block: delete redundant function declaration
2024-05-27 13:58:06 -06:00
blk-sysfs.c
block: convert features and flags to __bitwise types
2024-06-26 09:37:35 -06:00
blk-throttle.c
blk-throttle: fix lower control under super low iops limit
2024-06-28 14:55:02 -06:00
blk-throttle.h
blk-throttle: Fix incorrect display of io.max
2024-05-30 19:44:29 -06:00
blk-timeout.c
block: blk-timeout: delete duplicated word
2020-07-31 16:29:47 -06:00
blk-wbt.c
block: move cache control settings out of queue->flags
2024-06-19 07:58:28 -06:00
blk-wbt.h
blk-wbt: remove the separate write cache tracking
2023-12-26 09:28:10 -07:00
blk-zoned.c
block: Define bdev_nr_zones() as an inline function
2024-06-21 08:26:35 -06:00
blk.h
block: remove bio_integrity_process
2024-06-28 10:29:42 -06:00
bounce.c
block, fs: Restore the per-bio/request data lifetime fields
2024-02-06 14:31:05 +01:00
bsg-lib.c
scsi: bsg: Pass queue_limits to bsg_setup_queue()
2024-04-11 21:37:48 -04:00
bsg.c
SCSI misc on 20230629
2023-06-30 11:57:07 -07:00
disk-events.c
block: move bdev_mark_dead out of disk_check_media_change
2023-10-28 13:29:23 +02:00
early-lookup.c
wrapper for access to ->bd_partno
2024-05-02 17:48:09 -04:00
elevator.c
block: Remove elevator required features
2024-04-17 08:44:03 -06:00
elevator.h
block: Remove elevator required features
2024-04-17 08:44:03 -06:00
fops.c
block: clean up the check in blkdev_iomap_begin()
2024-06-27 05:56:35 -06:00
genhd.c
block: remove disk_update_readahead
2024-06-26 09:37:35 -06:00
holder.c
block: fix deadlock between bd_link_disk_holder and partition scan
2024-02-23 07:44:19 -07:00
ioctl.c
Compactifying bdev flags
2024-05-21 13:02:56 -07:00
ioprio.c
block: move __get_task_ioprio() into header file
2024-01-08 12:27:39 -07:00
Kconfig
block: remove the blk_integrity_profile structure
2024-06-14 10:20:06 -06:00
Kconfig.iosched
block: Default to use cgroup support for BFQ
2023-01-30 09:42:42 -07:00
kyber-iosched.c
blk-mq: pass a flags argument to elevator_type->insert_requests
2023-04-13 06:52:30 -06:00
Makefile
block: remove the blk_integrity_profile structure
2024-06-14 10:20:06 -06:00
mq-deadline.c
block/mq-deadline: Remove some unused functions
2024-04-19 08:10:36 -06:00
opal_proto.h
block: sed-opal: handle empty atoms when parsing response
2024-02-16 15:52:45 -07:00
sed-opal.c
for-6.9/block-20240310
2024-03-11 11:43:44 -07:00
t10-pi.c
block: remove bio_integrity_process
2024-06-28 10:29:42 -06:00