Tejun Heo 9f4ab0172e blk-iocost: ioc_pd_free() shouldn't assume irq disabled ...

commit 5aeac7c4b1 upstream.

ioc_pd_free() grabs irq-safe ioc->lock without ensuring that irq is disabled
when it can be called with irq disabled or enabled. This has a small chance
of causing A-A deadlocks and triggers lockdep splats. Use irqsave operations
instead.

Signed-off-by: Tejun Heo <tj@kernel.org>
Fixes: 7caa47151a ("blkcg: implement blk-iocost")
Cc: stable@vger.kernel.org # v5.4+
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2020-09-09 19:12:35 +02:00

..

partitions

…

badblocks.c

…

bfq-cgroup.c

bfq: fix blkio cgroup leakage v4

2020-09-03 11:26:54 +02:00

bfq-iosched.c

…

bfq-iosched.h

bfq: fix blkio cgroup leakage v4

2020-09-03 11:26:54 +02:00

bfq-wf2q.c

bfq: fix blkio cgroup leakage v4

2020-09-03 11:26:54 +02:00

bio-integrity.c

block: release bip in a right way in error path

2020-07-16 08:16:36 +02:00

bio.c

block: Fix page_is_mergeable() for compound pages

2020-09-03 11:26:54 +02:00

blk-cgroup.c

blkcg: fix memleak for iolatency

2020-09-03 11:26:55 +02:00

blk-core.c

block: ensure bdi->io_pages is always initialized

2020-09-09 19:12:34 +02:00

blk-exec.c

…

blk-flush.c

…

blk-integrity.c

…

blk-ioc.c

…

blk-iocost.c

blk-iocost: ioc_pd_free() shouldn't assume irq disabled

2020-09-09 19:12:35 +02:00

blk-iolatency.c

…

blk-lib.c

…

blk-map.c

…

blk-merge.c

block: fix get_max_io_size()

2020-09-03 11:27:01 +02:00

blk-mq-cpumap.c

…

blk-mq-debugfs-zoned.c

…

blk-mq-debugfs.c

blk-mq-debugfs: update blk_queue_flag_name[] accordingly for new flags

2020-07-22 09:32:52 +02:00

blk-mq-debugfs.h

…

blk-mq-pci.c

…

blk-mq-rdma.c

…

blk-mq-sched.c

blk-mq: order adding requests to hctx->dispatch and checking SCHED_RESTART

2020-09-03 11:27:01 +02:00

blk-mq-sched.h

…

blk-mq-sysfs.c

…

blk-mq-tag.c

…

blk-mq-tag.h

…

blk-mq-virtio.c

…

blk-mq.c

blk-mq: order adding requests to hctx->dispatch and checking SCHED_RESTART

2020-09-03 11:27:01 +02:00

blk-mq.h

…

blk-pm.c

…

blk-pm.h

…

blk-rq-qos.c

…

blk-rq-qos.h

…

blk-settings.c

…

blk-softirq.c

…

blk-stat.c

…

blk-stat.h

…

blk-sysfs.c

…

blk-throttle.c

…

blk-timeout.c

…

blk-wbt.c

…

blk-wbt.h

…

blk-zoned.c

…

blk.h

…

bounce.c

…

bsg-lib.c

…

bsg.c

…

cmdline-parser.c

…

compat_ioctl.c

…

elevator.c

…

genhd.c

…

ioctl.c

…

ioprio.c

…

Kconfig

…

Kconfig.iosched

…

kyber-iosched.c

…

Makefile

…

mq-deadline.c

…

opal_proto.h

…

partition-generic.c

…

scsi_ioctl.c

…

sed-opal.c

…

t10-pi.c

…