Cong Zhang 9eb1ee1f2a blk-mq: skip CPU offline notify on unmapped hctx ...

[ Upstream commit 10845a105b ]

If an hctx has no software ctx mapped, blk_mq_map_swqueue() never
allocates tags and leaves hctx->tags NULL. The CPU hotplug offline
notifier can still run for that hctx, return early since hctx cannot
hold any requests.

Signed-off-by: Cong Zhang <cong.zhang@oss.qualcomm.com>
Fixes: bf0beec060 ("blk-mq: drain I/O when all CPUs in a hctx are offline")
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2026-01-08 10:14:37 +01:00

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partitions

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badblocks.c

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bdev.c

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bfq-cgroup.c

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bfq-iosched.c

lib/sbitmap: convert shallow_depth from one word to the whole sbitmap

2025-08-20 18:30:49 +02:00

bfq-iosched.h

lib/sbitmap: convert shallow_depth from one word to the whole sbitmap

2025-08-20 18:30:49 +02:00

bfq-wf2q.c

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bio-integrity.c

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bio.c

block: fix adding folio to bio

2025-06-10 07:12:59 -04:00

blk-cgroup-fc-appid.c

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blk-cgroup-rwstat.c

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blk-cgroup-rwstat.h

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blk-cgroup.c

blk-cgroup: fix possible deadlock while configuring policy

2025-11-13 15:34:07 -05:00

blk-cgroup.h

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blk-core.c

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blk-crypto-fallback.c

blk-crypto: fix missing blktrace bio split events

2025-10-19 16:33:48 +02:00

blk-crypto-internal.h

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blk-crypto-profile.c

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blk-crypto-sysfs.c

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blk-crypto.c

blk-crypto: use BLK_STS_INVAL for alignment errors

2025-12-01 11:43:36 +01:00

blk-flush.c

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blk-ia-ranges.c

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blk-integrity.c

block: add a queue_limits_commit_update_frozen helper

2025-09-09 18:58:24 +02:00

blk-ioc.c

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blk-iocost.c

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blk-iolatency.c

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blk-ioprio.c

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blk-ioprio.h

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blk-lib.c

block: fix memory leak in __blkdev_issue_zero_pages

2025-12-18 13:55:19 +01:00

blk-map.c

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blk-merge.c

block: use plug request list tail for one-shot backmerge attempt

2025-06-27 11:11:19 +01:00

blk-mq-cpumap.c

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blk-mq-debugfs.c

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blk-mq-debugfs.h

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blk-mq-pci.c

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blk-mq-sched.c

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blk-mq-sched.h

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blk-mq-sysfs.c

blk-mq: check kobject state_in_sysfs before deleting in blk_mq_unregister_hctx

2025-10-15 11:59:57 +02:00

blk-mq-tag.c

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blk-mq-virtio.c

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blk-mq.c

blk-mq: skip CPU offline notify on unmapped hctx

2026-01-08 10:14:37 +01:00

blk-mq.h

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blk-pm.c

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blk-pm.h

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blk-rq-qos.c

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blk-rq-qos.h

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blk-settings.c

block: use int to store blk_stack_limits() return value

2025-10-15 11:59:58 +02:00

blk-stat.c

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blk-stat.h

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blk-sysfs.c

block: fix kobject leak in blk_unregister_queue

2025-07-24 08:56:30 +02:00

blk-throttle.c

block/blk-throttle: Fix throttle slice time for SSDs

2025-12-18 13:55:00 +01:00

blk-throttle.h

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blk-timeout.c

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blk-wbt.c

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blk-wbt.h

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blk-zoned.c

block: add a queue_limits_commit_update_frozen helper

2025-09-09 18:58:24 +02:00

blk.h

block: only update request sector if needed

2025-05-29 11:03:12 +02:00

bounce.c

block: mark bounce buffering as incompatible with integrity

2025-05-29 11:02:32 +02:00

bsg-lib.c

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bsg.c

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disk-events.c

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early-lookup.c

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elevator.c

block: use q->elevator with ->elevator_lock held in elv_iosched_show()

2025-06-19 15:32:32 +02:00

elevator.h

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fops.c

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genhd.c

block: rate-limit capacity change info log

2026-01-08 10:14:14 +01:00

holder.c

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ioctl.c

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ioprio.c

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Kconfig

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Kconfig.iosched

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kyber-iosched.c

lib/sbitmap: convert shallow_depth from one word to the whole sbitmap

2025-08-20 18:30:49 +02:00

Makefile

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mq-deadline.c

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

2025-12-18 13:54:45 +01:00

opal_proto.h

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sed-opal.c

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t10-pi.c

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