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Jan Kara 9f8b5931be 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 18:22:36 +01:00
..
partitions
partitions/aix: append null character to print data from disk
2018-07-27 09:17:41 -06:00
badblocks.c
badblocks: fix wrong return value in badblocks_set if badblocks are disabled
2017-11-03 11:29:50 -07:00
bfq-cgroup.c
block, bfq: fix overwrite of bfq_group pointer in bfq_find_set_group()
2020-03-25 08:06:08 +01:00
bfq-iosched.c
bfq: Fix computation of shallow depth
2021-01-19 18:22:36 +01:00
bfq-iosched.h
block, bfq: inject other-queue I/O into seeky idle queues on NCQ flash
2019-11-20 18:46:44 +01:00
bfq-wf2q.c
block, bfq: correctly charge and reset entity service in all cases
2018-11-13 11:08:28 -08:00
bio-integrity.c
block: release bip in a right way in error path
2020-07-16 08:17:23 +02:00
bio.c
block: do not leak memory in bio_copy_user_iov()
2019-04-17 08:38:51 +02:00
blk-cgroup.c
blk-cgroup: Pre-allocate tree node on blkg_conf_prep
2020-11-10 12:35:59 +01:00
blk-core.c
Revert "block: ratelimit handle_bad_sector() message"
2020-11-05 11:08:35 +01:00
blk-exec.c
blk-mq-sched: remove unused 'can_block' arg from blk_mq_sched_insert_request
2018-01-17 09:49:21 -07:00
blk-flush.c
block: fix null pointer dereference in blk_mq_rq_timed_out()
2019-10-05 13:10:08 +02:00
blk-integrity.c
block drivers/block: Use octal not symbolic permissions
2018-05-24 13:38:59 -06:00
blk-ioc.c
block: Fix use-after-free issue accessing struct io_cq
2020-04-17 10:48:41 +02:00
blk-iolatency.c
blk-iolatency: fix STS_AGAIN handling
2019-09-16 08:21:41 +02:00
blk-lib.c
block: fix 32 bit overflow in __blkdev_issue_discard()
2020-02-01 09:37:12 +00:00
blk-map.c
block: fix memleak when __blk_rq_map_user_iov() is failed
2020-01-12 12:17:22 +01:00
blk-merge.c
block: don't use bio->bi_vcnt to figure out segment number
2020-01-27 14:50:23 +01:00
blk-mq-cpumap.c
blk-mq: don't keep offline CPUs mapped to hctx 0
2018-04-10 08:38:46 -06:00
blk-mq-debugfs-zoned.c
block: Make struct request_queue smaller for CONFIG_BLK_DEV_ZONED=n
2018-07-09 09:07:52 -06:00
blk-mq-debugfs.c
block, scsi: Change the preempt-only flag into a counter
2019-08-04 09:30:57 +02:00
blk-mq-debugfs.h
block: Make struct request_queue smaller for CONFIG_BLK_DEV_ZONED=n
2018-07-09 09:07:52 -06:00
blk-mq-pci.c
blk-mq: code clean-up by adding an API to clear set->mq_map
2018-07-09 09:07:53 -06:00
blk-mq-rdma.c
block: Add rdma affinity based queue mapping helper
2017-08-08 14:58:03 -04:00
blk-mq-sched.c
blk-mq: order adding requests to hctx->dispatch and checking SCHED_RESTART
2020-09-03 11:24:26 +02:00
blk-mq-sched.h
block: mq-deadline: Fix write completion handling
2019-01-13 09:51:07 +01:00
blk-mq-sysfs.c
blk-mq: make sure that line break can be printed
2019-12-17 20:35:48 +01:00
blk-mq-tag.c
blk-mq: Allow blocking queue tag iter callbacks
2018-09-25 20:17:59 -06:00
blk-mq-tag.h
Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block
2017-11-14 15:32:19 -08:00
blk-mq-virtio.c
blk-mq: provide a default queue mapping for virtio device
2017-02-27 20:54:05 +02:00
blk-mq.c
block: factor out requeue handling from dispatch code
2020-12-30 11:25:45 +01:00
blk-mq.h
blk-mq: free hw queue's resource in hctx's release handler
2019-09-16 08:22:13 +02:00
blk-rq-qos.c
blk-wbt: fix performance regression in wbt scale_up/scale_down
2019-10-17 13:45:16 -07:00
blk-rq-qos.h
blk-rq-qos: fix first node deletion of rq_qos_del()
2019-10-29 09:20:09 +01:00
blk-settings.c
block: keep bdi->io_pages in sync with max_sectors_kb for stacked devices
2020-04-17 10:48:39 +02:00
blk-softirq.c
block: fix timeout changes for legacy request drivers
2018-06-19 11:27:18 -06:00
blk-stat.c
blk-stat: export helpers for modifying blk_rq_stat
2018-07-09 09:07:54 -06:00
blk-stat.h
block: deactivate blk_stat timer in wbt_disable_default()
2019-01-13 09:51:06 +01:00
blk-sysfs.c
block: call rq_qos_exit() after queue is frozen
2019-12-01 09:17:06 +01:00
blk-tag.c
for-linus-20180616
2018-06-17 05:37:55 +09:00
blk-throttle.c
blk-throttle: fix zero wait time for iops throttled group
2019-07-26 09:14:30 +02:00
blk-timeout.c
blk-mq: Fix timeout handling in case the timeout handler returns BLK_EH_DONE
2018-06-23 10:25:45 -06:00
blk-wbt.c
blk-wbt: fix performance regression in wbt scale_up/scale_down
2019-10-17 13:45:16 -07:00
blk-wbt.h
block: remove external dependency on wbt_flags
2018-07-09 09:07:54 -06:00
blk-zoned.c
block: Remove a superfluous cast from blkdev_report_zones()
2018-07-09 09:07:52 -06:00
blk.h
block: fix null pointer dereference in blk_mq_rq_timed_out()
2019-10-05 13:10:08 +02:00
bounce.c
block: copy ioprio in __bio_clone_fast() and bounce
2018-12-01 09:37:32 +01:00
bsg-lib.c
block/bsg-lib: use PTR_ERR_OR_ZERO to simplify the flow path
2018-08-01 09:13:03 -06:00
bsg.c
block: bsg: move atomic_t ref_count variable to refcount API
2018-08-27 19:17:02 -06:00
cfq-iosched.c
cfq: Suppress compiler warnings about comparisons
2018-08-07 17:57:13 -06:00
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
compat_ioctl.c
compat_ioctl: block: handle BLKREPORTZONE/BLKRESETZONE
2020-01-09 10:19:01 +01:00
deadline-iosched.c
block drivers/block: Use octal not symbolic permissions
2018-05-24 13:38:59 -06:00
elevator.c
block: fix deadline elevator drain for zoned block devices
2018-09-26 19:57:24 -06:00
genhd.c
block: fix use-after-free in disk_part_iter_next
2021-01-17 14:04:23 +01:00
ioctl.c
block: pass inclusive 'lend' parameter to truncate_inode_pages_range
2018-02-23 15:20:19 -07:00
ioprio.c
block: add ioprio_check_cap function
2018-05-31 10:50:54 -04:00
Kconfig
block: introduce blk-iolatency io controller
2018-07-09 09:07:54 -06:00
Kconfig.iosched
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
kyber-iosched.c
block: kyber: make kyber more friendly with merging
2018-05-30 10:47:40 -06:00
Makefile
block: introduce blk-iolatency io controller
2018-07-09 09:07:54 -06:00
mq-deadline.c
block: mq-deadline: Fix queue restart handling
2019-10-07 18:57:19 +02:00
noop-iosched.c
block: move existing elevator ops to union
2017-01-17 10:03:33 -07:00
opal_proto.h
block: sed-opal: Set MBRDone on S3 resume path if TPER is MBREnabled
2017-09-11 09:45:52 -06:00
partition-generic.c
block: fix use-after-free on gendisk
2019-05-31 06:46:18 -07:00
scsi_ioctl.c
block: consistently use GFP_NOIO instead of __GFP_NORECLAIM
2018-05-14 08:55:18 -06:00
sed-opal.c
block: sed-opal: fix IOC_OPAL_ENABLE_DISABLE_MBR
2019-05-31 06:46:24 -07:00
t10-pi.c
block: move dif_prepare/dif_complete functions to block layer
2018-07-30 08:27:02 -06:00