Ming Lei c3b4afca70 blk-mq: free hctx->ctxs in queue's release handler ...

Now blk_cleanup_queue() can be called before calling
del_gendisk()[1], inside which hctx->ctxs is touched
from blk_mq_unregister_hctx(), but the variable has
been freed by blk_cleanup_queue() at that time.

So this patch moves freeing of hctx->ctxs into queue's
release handler for fixing the oops reported by Stefan.

[1], 6cd18e711d (block: destroy bdi before blockdev is
unregistered)

Reported-by: Stefan Seyfried <stefan.seyfried@googlemail.com>
Cc: NeilBrown <neilb@suse.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: stable@vger.kernel.org (v4.0)
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

2015-06-09 15:32:38 -06:00

..

partitions

Merge branch 'for-3.20/core' of git://git.kernel.dk/linux-block

2015-02-12 14:13:23 -08:00

bio-integrity.c

block: fix regression where bio_integrity_process uses wrong bio_vec iterator

2014-12-02 08:15:21 -07:00

bio.c

block: rewrite and split __bio_copy_iov()

2015-02-05 09:30:44 -07:00

blk-cgroup.c

blkcg: remove blkcg->id

2014-09-08 09:55:37 -06:00

blk-cgroup.h

blkcg: remove blkcg->id

2014-09-08 09:55:37 -06:00

blk-core.c

block: remove export for blk_queue_bio

2015-05-12 17:21:22 -04:00

blk-exec.c

blk-mq: avoid infinite recursion with the FUA flag

2014-09-22 11:55:19 -06:00

blk-flush.c

blk-mq: support per-distpatch_queue flush machinery

2014-09-25 15:22:45 -06:00

blk-integrity.c

block: Don't merge requests if integrity flags differ

2014-09-27 09:14:57 -06:00

blk-ioc.c

block: Substitute rcu_access_pointer() for rcu_dereference_raw()

2014-02-18 12:21:26 -08:00

blk-iopoll.c

Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next

2014-06-03 12:57:53 -07:00

blk-lib.c

block: Quiesce zeroout wrapper

2015-02-05 10:14:54 -07:00

blk-map.c

blk_rq_map_user(): use import_single_range()

2015-04-11 22:27:13 -04:00

blk-merge.c

Fix bug in blk_rq_merge_ok

2015-03-20 08:50:41 -06:00

blk-mq-cpu.c

blk-mq: add file comments and update copyright notices

2014-05-28 10:15:41 -06:00

blk-mq-cpumap.c

blk-mq: Use all available hardware queues

2014-12-09 09:08:21 -07:00

blk-mq-sysfs.c

blk-mq: add blk_mq_init_allocated_queue and export blk_mq_register_disk

2015-03-13 08:26:53 -06:00

blk-mq-tag.c

blkmq: Fix NULL pointer deref when all reserved tags in

2015-03-18 17:06:18 -06:00

blk-mq-tag.h

blk-mq: add tag allocation policy

2015-01-23 14:18:00 -07:00

blk-mq.c

blk-mq: free hctx->ctxs in queue's release handler

2015-06-09 15:32:38 -06:00

blk-mq.h

blk-mq: release mq's kobjects in blk_release_queue()

2015-01-29 08:30:51 -08:00

blk-settings.c

block: fix blk_stack_limits() regression due to lcm() change

2015-03-31 09:45:50 -06:00

blk-softirq.c

block: fix regression with block enabled tagging

2014-04-09 21:54:06 -06:00

blk-sysfs.c

block: destroy bdi before blockdev is unregistered.

2015-04-27 10:27:20 -06:00

blk-tag.c

block: support different tag allocation policy

2015-01-23 14:15:46 -07:00

blk-throttle.c

blk-throttle: check stats_cpu before reading it from sysfs

2015-02-20 22:11:58 -08:00

blk-timeout.c

blk-mq: Allow requests to never expire

2015-01-08 08:59:01 -07:00

blk.h

blk-mq: support per-distpatch_queue flush machinery

2014-09-25 15:22:45 -06:00

bounce.c

block:bounce: fix call inc_|dec_zone_page_state on different pages confuse value of NR_BOUNCE

2015-04-27 09:24:07 -06:00

bsg-lib.c

bsg: Remove unused function bsg_goose_queue()

2012-12-06 14:33:02 +01:00

bsg.c

block: Simplify bsg complete all

2015-02-04 09:57:52 -07:00

cfq-iosched.c

cfq-iosched: handle failure of cfq group allocation

2015-02-09 10:22:39 -07:00

cmdline-parser.c

block: remove unrelated header files and export symbol

2014-01-21 20:18:26 -08:00

compat_ioctl.c

block, bdi: an active gendisk always has a request_queue associated with it

2014-09-08 10:00:35 -06:00

deadline-iosched.c

block: Stop abusing csd.list for fifo_time

2014-02-24 14:46:32 -08:00

elevator.c

elevator: fix double release of elevator module

2015-04-23 10:47:44 -06:00

genhd.c

block: discard bdi_unregister() in favour of bdi_destroy()

2015-05-28 10:12:42 -06:00

ioctl.c

block: Add discard flag to blkdev_issue_zeroout() function

2015-01-21 10:41:46 -07:00

ioprio.c

block: Fix computation of merged request priority

2014-10-31 08:30:43 -06:00

Kconfig

block: Add T10 Protection Information functions

2014-09-27 09:14:59 -06:00

Kconfig.iosched

blkcg: make CONFIG_BLK_CGROUP bool

2012-03-06 21:27:21 +01:00

Makefile

block: Add T10 Protection Information functions

2014-09-27 09:14:59 -06:00

noop-iosched.c

elevator: Fix a race in elevator switching

2013-07-03 13:25:24 +02:00

partition-generic.c

block: Fix dev_t minor allocation lifetime

2014-09-03 15:01:02 -06:00

scsi_ioctl.c

sg_io(): use import_iovec()

2015-04-11 22:27:13 -04:00

t10-pi.c

block: Add T10 Protection Information functions

2014-09-27 09:14:59 -06:00