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Jan Kara 7fdaca86fc bfq: Fix computation of shallow depth 
[ Upstream commit 6d4d273588378c65915acaf7b2ee74e9dd9c130a ]

BFQ computes number of tags it allows to be allocated for each request type
based on tag bitmap. However it uses 1 << bitmap.shift as number of
available tags which is wrong. 'shift' is just an internal bitmap value
containing logarithm of how many bits bitmap uses in each bitmap word.
Thus number of tags allowed for some request types can be far to low.
Use proper bitmap.depth which has the number of tags instead.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-01-19 18:27:26 +01:00
..
partitions block-5.10-2020-10-12 2020-10-13 12:12:44 -07:00
badblocks.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
bfq-cgroup.c bfq: fix blkio cgroup leakage v4 2020-08-18 07:48:08 -07:00
bfq-iosched.c bfq: Fix computation of shallow depth 2021-01-19 18:27:26 +01:00
bfq-iosched.h bfq: fix blkio cgroup leakage v4 2020-08-18 07:48:08 -07:00
bfq-wf2q.c bfq: fix blkio cgroup leakage v4 2020-08-18 07:48:08 -07:00
bio-integrity.c block: make function __bio_integrity_free() static 2020-07-02 12:38:18 -06:00
bio.c block: advance iov_iter on bio_add_hw_page failure 2020-10-28 07:51:02 -06:00
blk-cgroup-rwstat.c blk-cgroup: separate out blkg_rwstat under CONFIG_BLK_CGROUP_RWSTAT 2019-11-07 12:28:13 -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 blk-cgroup: fix a hd_struct leak in blkcg_fill_root_iostats 2020-11-14 11:17:34 -07:00
blk-core.c scsi: block: Do not accept any requests while suspended 2021-01-12 20:18:17 +01:00
blk-crypto-fallback.c block: rename generic_make_request to submit_bio_noacct 2020-07-01 07:27:24 -06:00
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 block: warn if !__GFP_DIRECT_RECLAIM in bio_crypt_set_ctx() 2020-10-05 10:47:43 -06:00
blk-exec.c block: add a blk_account_io_merge_bio helper 2020-05-27 05:21:23 -06:00
blk-flush.c block: mark flush request as IDLE when it is really finished 2020-11-13 14:24:16 -07:00
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 NULL iocg deref from racing against initialization 2021-01-12 20:18:23 +01:00
blk-iolatency.c block: Remove redundant 'return' statement 2020-10-08 07:59:48 -06:00
blk-lib.c block: add a bdev_is_partition helper 2020-09-25 08:18:57 -06:00
blk-map.c block: fix bmd->is_null_mapped initialization 2020-09-23 09:18:39 -06:00
blk-merge.c dm: fix IO splitting 2020-12-04 14:53:15 -05:00
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 scsi: block: Remove RQF_PREEMPT and BLK_MQ_REQ_PREEMPT 2021-01-12 20:18:17 +01:00
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: get rid of the dead flush handle code path 2020-10-09 12:35:39 -06:00
blk-mq-sched.h block-5.10-2020-10-12 2020-10-13 12:12:44 -07:00
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 block-mq: fix comments in blk_mq_queue_tag_busy_iter 2020-09-29 08:11:00 -06:00
blk-mq-tag.h blk-mq: Relocate hctx_may_queue() 2020-09-03 15:20:47 -06:00
blk-mq-virtio.c blk-mq: Fix typo in comment 2020-03-17 20:55:21 +01:00
blk-mq.c scsi: block: Remove RQF_PREEMPT and BLK_MQ_REQ_PREEMPT 2021-01-12 20:18:17 +01:00
blk-mq.h blk-mq: Record active_queues_shared_sbitmap per tag_set for when using shared sbitmap 2020-09-03 15:20:47 -06:00
blk-pm.c scsi: block: Fix a race in the runtime power management code 2021-01-06 14:56:50 +01:00
blk-pm.h scsi: block: Do not accept any requests while suspended 2021-01-12 20:18:17 +01:00
blk-rq-qos.c Revert "blk-rq-qos: remove redundant finish_wait to rq_qos_wait." 2020-07-15 09:33:37 -06:00
blk-rq-qos.h blk-rq-qos: fix first node deletion of rq_qos_del() 2019-10-15 10:13:13 -06:00
blk-settings.c block: use gcd() to fix chunk_sectors limit stacking 2020-12-01 11:02:55 -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 blk-mq: move cancel of hctx->run_work to the front of blk_exit_queue 2020-10-09 12:46:28 -06:00
blk-throttle.c blk-throttle: Re-use the throtl_set_slice_end() 2020-10-08 08:01:38 -06:00
blk-timeout.c block: blk-timeout: delete duplicated word 2020-07-31 16:29:47 -06:00
blk-wbt.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
blk-wbt.h blk-wbt: remove wbt_update_limits 2020-05-29 16:30:39 -06:00
blk-zoned.c block: don't do revalidate zones on invalid devices 2020-08-03 09:24:04 -06:00
blk.h block: move blk_mq_sched_try_merge to blk-merge.c 2020-10-06 07:29:53 -06:00
bounce.c block: make bio_crypt_clone() able to fail 2020-10-05 10:47:43 -06:00
bsg-lib.c block: drop double zeroing 2020-09-23 09:18:13 -06:00
bsg.c compat_ioctl: bsg: add handler 2020-01-03 09:33:21 +01:00
cmdline-parser.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
elevator.c block: fix comment and add lockdep assert 2020-10-09 12:34:06 -06:00
genhd.c block: fix use-after-free in disk_part_iter_next 2021-01-17 14:17:05 +01:00
ioctl.c block: add a bdev_is_partition helper 2020-09-25 08:18:57 -06:00
ioprio.c block: grant IOPRIO_CLASS_RT to CAP_SYS_NICE 2020-09-01 19:38:33 -06:00
Kconfig blk-wbt: Remove obsolete multiqueue I/O scheduling comment 2020-09-01 16:49:26 -06:00
Kconfig.iosched treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
keyslot-manager.c block/keyslot-manager: prevent crash when num_slots=1 2020-11-20 11:52:52 -07:00
kyber-iosched.c blk-mq: Use pointers for blk_mq_tags bitmap tags 2020-09-03 15:20:47 -06:00
Makefile blk-mq: merge blk-softirq.c into blk-mq.c 2020-06-24 09:15:56 -06:00
mq-deadline.c blk-mq, elevator: Count requests per hctx to improve performance 2020-09-03 15:20:47 -06:00
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 drivers-5.10-2020-10-12 2020-10-13 13:04:41 -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