Jens AxboeandGreg Kroah-Hartman 33cf52b6e5 block: ensure we hold a queue reference when using queue limits ...

[ Upstream commit 7b4f36cd22 ]

q_usage_counter is the only thing preventing us from the limits changing
under us in __bio_split_to_limits, but blk_mq_submit_bio doesn't hold
it while calling into it.

Move the splitting inside the region where we know we've got a queue
reference. Ideally this could still remain a shared section of code, but
let's keep the fix simple and defer any refactoring here to later.

Reported-by: Christoph Hellwig <hch@lst.de>
Fixes: 900e080752 ("block: move queue enter logic into blk_mq_submit_bio()")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-01-25 15:27:49 -08:00

..

partitions

block/partition: fix signedness issue for Amiga partitions

2023-07-19 16:22:17 +02:00

badblocks.c

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bdev.c

block: update the stable_writes flag in bdev_add

2024-01-10 17:10:32 +01:00

bfq-cgroup.c

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bfq-iosched.c

block, bfq: Fix division by zero error on zero wsum

2023-05-24 17:32:38 +01:00

bfq-iosched.h

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bfq-wf2q.c

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bio-integrity.c

block: factor out a bvec_set_page helper

2023-09-23 11:11:08 +02:00

bio.c

block: factor out a bvec_set_page helper

2023-09-23 11:11:08 +02:00

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: bypass blkcg_deactivate_policy after destroying

2023-12-20 17:00:21 +01:00

blk-cgroup.h

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blk-core.c

blk-core: use pr_warn_ratelimited() in bio_check_ro()

2023-11-20 11:52:17 +01:00

blk-crypto-fallback.c

blk-crypto: dynamically allocate fallback profile

2023-08-23 17:52:39 +02:00

blk-crypto-internal.h

blk-mq: release crypto keyslot before reporting I/O complete

2023-05-11 23:03:00 +09:00

blk-crypto-profile.c

blk-crypto: use dynamic lock class for blk_crypto_profile::lock

2023-07-23 13:49:21 +02:00

blk-crypto-sysfs.c

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blk-crypto.c

blk-crypto: make blk_crypto_evict_key() more robust

2023-05-11 23:03:01 +09:00

blk-flush.c

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blk-ia-ranges.c

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blk-integrity.c

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blk-ioc.c

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blk-iocost.c

blk-iocost: use spin_lock_irqsave in adjust_inuse_and_calc_cost

2023-07-19 16:20:55 +02:00

blk-iolatency.c

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blk-ioprio.c

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blk-ioprio.h

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blk-lib.c

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blk-map.c

block: fix bio-cache for passthru IO

2023-06-05 09:26:21 +02:00

blk-merge.c

blk-mq: release crypto keyslot before reporting I/O complete

2023-05-11 23:03:00 +09:00

blk-mq-cpumap.c

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blk-mq-debugfs-zoned.c

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blk-mq-debugfs.c

blk-mq: fix potential io hang by wrong 'wake_batch'

2023-07-19 16:20:55 +02:00

blk-mq-debugfs.h

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blk-mq-pci.c

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blk-mq-rdma.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

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blk-mq-tag.c

blk-mq: fix potential io hang by wrong 'wake_batch'

2023-07-19 16:20:55 +02:00

blk-mq-tag.h

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blk-mq-virtio.c

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blk-mq.c

block: ensure we hold a queue reference when using queue limits

2024-01-25 15:27:49 -08:00

blk-mq.h

blk-mq: fix potential io hang by wrong 'wake_batch'

2023-07-19 16:20:55 +02:00

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: make BLK_DEF_MAX_SECTORS unsigned

2024-01-25 15:27:30 -08:00

blk-stat.c

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blk-stat.h

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blk-sysfs.c

block: fix use-after-free of q->q_usage_counter

2023-10-10 22:00:37 +02:00

blk-throttle.c

blk-throttle: fix lockdep warning of "cgroup_mutex or RCU read lock required!"

2023-12-20 17:00:21 +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

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blk.h

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bounce.c

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bsg-lib.c

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bsg.c

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disk-events.c

block: increment diskseq on all media change events

2023-07-19 16:21:47 +02:00

elevator.c

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elevator.h

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fops.c

block: Don't invalidate pagecache for invalid falloc modes

2024-01-10 17:10:20 +01:00

genhd.c

block: add check of 'minors' and 'first_minor' in device_add_disk()

2024-01-25 15:27:28 -08:00

holder.c

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ioctl.c

block: add check that partition length needs to be aligned with block size

2024-01-25 15:27:42 -08:00

ioprio.c

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Kconfig

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Kconfig.iosched

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kyber-iosched.c

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Makefile

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mq-deadline.c

block/mq-deadline: use correct way to throttling write requests

2023-09-13 09:42:42 +02:00

opal_proto.h

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sed-opal.c

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t10-pi.c

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