Nilay Shroff 14ef49657f block: fix nr_hw_queue update racing with disk addition/removal ... The nr_hw_queue update could potentially race with disk addtion/removal while registering/unregistering hctx sysfs files. The __blk_mq_update_ nr_hw_queues() runs with q->tag_list_lock held and so to avoid it racing with disk addition/removal we should acquire q->tag_list_lock while registering/unregistering hctx sysfs files. With this patch, blk_mq_sysfs_register() (called during disk addition) and blk_mq_sysfs_unregister() (called during disk removal) now runs with q->tag_list_lock held so that it avoids racing with __blk_mq_update _nr_hw_queues(). Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Link: https://lore.kernel.org/r/20250128143436.874357-3-nilay@linux.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk>		2025-01-29 07:16:47 -07:00
..
partitions	partitions: ldm: remove the initial kernel-doc notation	2025-01-13 07:47:19 -07:00
badblocks.c	badblocks: avoid checking invalid range in badblocks_check()	2023-12-23 18:38:08 -07:00
bdev.c	block/bdev: use helper for max block size check	2024-12-18 07:22:30 -07:00
bfq-cgroup.c	Revert "block, bfq: merge bfq_release_process_ref() into bfq_put_cooperator()"	2024-11-19 19:05:32 -07:00
bfq-iosched.c	for-6.14/block-20250118	2025-01-20 19:38:46 -08:00
bfq-iosched.h	block, bfq: remove bfq_log_bfqg()	2024-09-10 16:32:09 -06:00
bfq-wf2q.c
bio-integrity.c	block: add support to pass user meta buffer	2024-12-23 08:17:17 -07:00
bio.c	block: Don't trim an atomic write	2025-01-17 13:13:55 -07:00
blk-cgroup-fc-appid.c
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	blk-cgroup: Fix UAF in blkcg_unpin_online()	2024-12-10 09:17:00 -07:00
blk-cgroup.h	blk-cgroup: fix kernel-doc warnings in header file	2025-01-13 07:46:55 -07:00
blk-core.c	block: get rid of request queue ->sysfs_dir_lock	2025-01-29 07:16:47 -07:00
blk-crypto-fallback.c	block: Rework bio_split() return value	2024-11-11 08:35:46 -07:00
blk-crypto-internal.h
blk-crypto-profile.c
blk-crypto-sysfs.c
blk-crypto.c
blk-flush.c	for-6.11/block-20240710	2024-07-15 14:20:22 -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	for-6.14/io_uring-20250119	2025-01-20 20:27:33 -08:00
blk-ioc.c	block: replace call_rcu by kfree_rcu for simple kmem_cache_free callback	2024-10-22 08:16:40 -06:00
blk-iocost.c	blk-iocost: Avoid using clamp() on inuse in __propagate_weights()	2024-12-12 11:48:14 -07:00
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: remove per-disk structure	2024-07-28 16:47:51 -06:00
blk-ioprio.h	blk-ioprio: remove per-disk structure	2024-07-28 16:47:51 -06:00
blk-lib.c	block: fix detection of unsupported WRITE SAME in blkdev_issue_write_zeroes	2024-08-28 08:49:25 -06:00
blk-map.c	block: remove blk_rq_bio_prep	2025-01-04 15:27:35 -07:00
blk-merge.c	block: add a dma mapping iterator	2025-01-06 07:37:11 -07:00
blk-mq-cpumap.c	blk-mq: create correct map for fallback case	2025-01-23 06:34:32 -07:00
blk-mq-debugfs.c	block: simplify tag allocation policy selection	2025-01-06 07:37:41 -07:00
blk-mq-debugfs.h	block: Replace zone_wlock debugfs entry with zone_wplugs entry	2024-04-17 08:44:03 -06:00
blk-mq-sched.c	block: remove BLK_MQ_F_SHOULD_MERGE	2024-12-23 08:17:23 -07:00
blk-mq-sched.h
blk-mq-sysfs.c	block: fix nr_hw_queue update racing with disk addition/removal	2025-01-29 07:16:47 -07:00
blk-mq-tag.c	block: simplify tag allocation policy selection	2025-01-06 07:37:41 -07:00
blk-mq.c	blk-mq: Move more error handling into blk_mq_submit_bio()	2025-01-14 10:13:25 -07:00
blk-mq.h	block: don't update BLK_FEAT_POLL in __blk_mq_update_nr_hw_queues	2025-01-10 07:29:23 -07:00
blk-pm.c	block: Remove blk_set_runtime_active()	2023-11-20 10:22:40 -07:00
blk-pm.h
blk-rq-qos.c	block: remove redundant explicit memory barrier from rq_qos waiter and waker	2024-10-22 14:05:09 -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: Add common atomic writes enable flag	2025-01-17 13:13:54 -07:00
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: get rid of request queue ->sysfs_dir_lock	2025-01-29 07:16:47 -07:00
blk-throttle.c	block: flush all throttled bios when deleting the cgroup	2024-10-22 08:16:43 -06:00
blk-throttle.h	blk-throttle: remove last_low_overflow_time	2024-09-10 16:31:41 -06:00
blk-timeout.c
blk-wbt.c	blk-wbt: don't throttle swap writes in direct reclaim	2024-07-01 06:51:53 -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: add a queue_limits_commit_update_frozen helper	2025-01-10 07:29:23 -07:00
blk.h	block: limit disk max sectors to (LLONG_MAX >> 9)	2025-01-15 15:46:56 -07:00
bounce.c	block: split integrity support out of bio.h	2024-07-03 10:21:15 -06:00
bsg-lib.c	block: remove BLK_MQ_F_NO_SCHED	2025-01-06 07:37:41 -07:00
bsg.c
disk-events.c
early-lookup.c	wrapper for access to ->bd_partno	2024-05-02 17:48:09 -04:00
elevator.c	block: remove BLK_MQ_F_NO_SCHED	2025-01-06 07:37:41 -07:00
elevator.h	elevator: Enable const sysfs attributes	2025-01-02 13:20:29 -07:00
fops.c	block: don't revert iter for -EIOCBQUEUED	2025-01-23 06:18:41 -07:00
genhd.c	block: limit disk max sectors to (LLONG_MAX >> 9)	2025-01-15 15:46:56 -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: implement async io_uring discard cmd	2024-09-11 10:45:28 -06:00
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
kyber-iosched.c	kyber: constify sysfs attributes	2025-01-02 13:20:29 -07:00
Makefile	blk-mq: remove unused queue mapping helpers	2024-12-23 08:17:23 -07:00
mq-deadline.c	block: mq-deadline: Constify sysfs attributes	2025-01-02 13:20:29 -07:00
opal_proto.h	block: sed-opal: handle empty atoms when parsing response	2024-02-16 15:52:45 -07:00
sed-opal.c	block: sed-opal: add ioctl IOC_OPAL_SET_SID_PW	2024-10-22 08:16:40 -06:00
t10-pi.c	move asm/unaligned.h to linux/unaligned.h	2024-10-02 17:23:23 -04:00