Yu Kuai 41afaeeda5 blk-wbt: fix possible deadlock to nest pcpu_alloc_mutex under q_usage_counter ...

If wbt is disabled by default and user configures wbt by sysfs, queue
will be frozen first and then pcpu_alloc_mutex will be held in
blk_stat_alloc_callback().

Fix this problem by allocating memory first before queue frozen.

Signed-off-by: Yu Kuai <yukuai@fnnas.com>
Reviewed-by: Nilay Shroff <nilay@linux.ibm.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

2026-02-02 07:05:19 -07:00

..

partitions

block: Replace snprintf with strscpy in check_partition

2026-01-28 05:28:13 -07:00

badblocks.c

badblocks: Fix a nonsense WARN_ON() which checks whether a u64 variable < 0

2025-03-10 07:41:58 -06:00

bdev.c

Merge tag 'vfs-6.19-rc1.inode' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

2025-12-01 09:02:34 -08:00

bfq-cgroup.c

block,bfq: fix aux stat accumulation destination

2025-12-28 09:03:51 -07:00

bfq-iosched.c

block: introduce blk_queue_rot()

2026-01-29 13:15:50 -07:00

bfq-iosched.h

block, bfq: update outdated comment

2026-01-01 08:57:37 -07:00

bfq-wf2q.c

block, bfq: inject I/O to underutilized actuators

2023-01-29 15:18:33 -07:00

bio-integrity-auto.c

Merge branch 'block-6.19' into for-7.0/block

2026-01-11 13:16:36 -07:00

bio-integrity.c

block: make bio auto-integrity deadlock safe

2025-11-04 12:41:50 -07:00

bio.c

block: don't initialize bi_vcnt for cloned bio in bio_iov_bvec_set()

2026-01-07 08:06:33 -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

blk-cgroup: rwstat: fix kernel-doc warnings in header file

2025-01-13 07:47:09 -07:00

blk-cgroup.c

block: Remove elevator_lock usage from blkg_conf frozen operations

2025-10-15 08:00:19 -06:00

blk-cgroup.h

block: initialize bio issue time in blk_mq_submit_bio()

2025-09-10 05:23:45 -06:00

blk-core.c

block: improve blk_op_str() comment

2026-01-15 10:19:09 -07:00

blk-crypto-fallback.c

blk-crypto: optimize data unit alignment checking

2026-01-11 12:55:41 -07:00

blk-crypto-internal.h

blk-crypto: handle the fallback above the block layer

2026-01-11 12:55:41 -07:00

blk-crypto-profile.c

blk-crypto: export wrapped key functions

2025-05-06 19:08:08 +02:00

blk-crypto-sysfs.c

blk-crypto: show supported key types in sysfs

2025-02-10 09:54:19 -07:00

blk-crypto.c

blk-crypto: handle the fallback above the block layer

2026-01-11 12:55:41 -07:00

blk-flush.c

block: pass io_comp_batch to rq_end_io_fn callback

2026-01-20 10:12:54 -07:00

blk-ia-ranges.c

block: get rid of request queue ->sysfs_dir_lock

2025-01-29 07:16:47 -07:00

blk-integrity.c

block: don't merge bios with different app_tags

2026-01-06 19:10:08 -07:00

blk-ioc.c

copy_process: pass clone_flags as u64 across calltree

2025-09-01 15:31:34 +02:00

blk-iocost.c

block: introduce blk_queue_rot()

2026-01-29 13:15:50 -07:00

blk-iolatency.c

block: introduce blk_queue_rot()

2026-01-29 13:15:50 -07:00

blk-ioprio.c

blk-cgroup: Simplify policy files registration

2025-03-11 09:22:55 -10:00

blk-ioprio.h

blk-ioprio: remove per-disk structure

2024-07-28 16:47:51 -06:00

blk-lib.c

block: fix memory leak in __blkdev_issue_zero_pages

2025-12-04 15:43:28 -07:00

blk-map.c

block: use bio_alloc_bioset for passthru IO by default

2025-12-04 07:18:54 -07:00

blk-merge.c

blk-crypto: optimize data unit alignment checking

2026-01-11 12:55:41 -07:00

blk-mq-cpumap.c

blk-mq: add number of queue calc helper

2025-07-01 10:24:19 -06:00

blk-mq-debugfs.c

blk-mq: add QUEUE_FLAG_BIO_ISSUE_TIME

2025-09-10 05:23:45 -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-dma.c

Merge branch 'for-7.0/blk-pvec' into for-7.0/block

2026-01-18 06:27:37 -07:00

blk-mq-sched.c

block: use {alloc|free}_sched data methods

2025-11-13 09:27:49 -07:00

blk-mq-sched.h

block: use {alloc|free}_sched data methods

2025-11-13 09:27:49 -07:00

blk-mq-sysfs.c

blk-mq: Move flush queue allocation into blk_mq_init_hctx()

2025-09-08 08:05:32 -06:00

blk-mq-tag.c

blk-mq: use array manage hctx map instead of xarray

2025-11-28 09:09:19 -07:00

blk-mq.c

block: pass io_comp_batch to rq_end_io_fn callback

2026-01-20 10:12:54 -07:00

blk-mq.h

blk-mq: use queue_hctx in blk_mq_map_queue_type

2025-12-01 07:18:31 -07:00

blk-pm.c

block: force noio scope in blk_mq_freeze_queue

2025-01-31 07:20:08 -07:00

blk-pm.h

…

blk-rq-qos.c

block: avoid cpu_hotplug_lock depedency on freeze_lock

2025-08-21 07:11:11 -06:00

blk-rq-qos.h

blk-rq-qos: Remove unlikely() hints from QoS checks

2026-01-06 19:08:23 -07:00

blk-settings.c

block: validate interval_exp integrity limit

2025-12-18 09:51:49 -07:00

blk-stat.c

treewide, timers: Rename from_timer() to timer_container_of()

2025-06-08 09:07:37 +02:00

blk-stat.h

treewide: Switch/rename to timer_delete[_sync]()

2025-04-05 10:30:12 +02:00

blk-sysfs.c

blk-wbt: factor out a helper wbt_set_lat()

2026-02-02 07:05:19 -07:00

blk-throttle.c

block/blk-throttle: Remove throtl_slice from struct throtl_data

2025-11-17 09:39:48 -07:00

blk-throttle.h

blk-throttle: fix access race during throttle policy activation

2025-09-08 08:24:44 -06:00

blk-timeout.c

…

blk-wbt.c

blk-wbt: fix possible deadlock to nest pcpu_alloc_mutex under q_usage_counter

2026-02-02 07:05:19 -07:00

blk-wbt.h

blk-wbt: factor out a helper wbt_set_lat()

2026-02-02 07:05:19 -07:00

blk-zoned.c

block: fix blk_zone_cond_str() comment

2026-01-15 10:19:08 -07:00

blk.h

block: account for bi_bvec_done in bio_may_need_split()

2026-01-10 10:22:54 -07:00

bsg-lib.c

block: remove unused parameter 'q' parameter in __blk_rq_map_sg()

2025-03-13 05:46:19 -06:00

bsg.c

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

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: fix race between wbt_enable_default and IO submission

2025-12-12 12:51:11 -07:00

elevator.h

block: fix race between wbt_enable_default and IO submission

2025-12-12 12:51:11 -07:00

fops.c

block: enable per-cpu bio cache by default

2025-12-04 07:19:24 -07:00

genhd.c

block: Remove references to __device_add_disk()

2025-11-25 10:36:37 -07:00

holder.c

block: fix deadlock between bd_link_disk_holder and partition scan

2024-02-23 07:44:19 -07:00

ioctl.c

block: introduce bdev_rot()

2026-01-30 08:11:09 -07:00

ioprio.c

block: remove test of incorrect io priority level

2025-05-08 09:04:12 -06:00

Kconfig

block: Remove obsolete configs BLK_MQ_{PCI,VIRTIO}

2025-05-14 05:43:56 -06:00

Kconfig.iosched

block: Default to use cgroup support for BFQ

2023-01-30 09:42:42 -07:00

kyber-iosched.c

block: define alloc_sched_data and free_sched_data methods for kyber

2025-11-13 09:27:49 -07:00

Makefile

blk-mq: move the DMA mapping code to a separate file

2025-05-16 08:43:41 -06:00

mq-deadline.c

block/mq-deadline: Switch back to a single dispatch list

2025-10-20 10:37:42 -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

sed-opal: ignore locking ranges array when not enabling SUM.

2026-02-02 07:04:43 -07:00

t10-pi.c

block: rename tuple_size field in blk_integrity to metadata_size

2025-07-01 14:00:14 +02:00