Tejun Heo a51db52c68 block: fix synchronization and limit check in blk_alloc_devt() ...

commit ce23bba842 upstream.

idr allocation in blk_alloc_devt() wasn't synchronized against lookup
and removal, and its limit check was off by one - 1 << MINORBITS is
the number of minors allowed, not the maximum allowed minor.

Add locking and rename MAX_EXT_DEVT to NR_EXT_DEVT and fix limit
checking.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

2013-03-06 03:24:16 +00:00

..

blk-cgroup.c

blk-throttle: Take blkcg->lock while traversing blkcg->policy_list

2011-10-25 15:48:12 +02:00

blk-cgroup.h

block: fix a typo in the blk-cgroup.h file

2011-10-24 16:08:38 +02:00

blk-core.c

block: add blk_queue_dead()

2012-08-02 14:37:54 +01:00

blk-exec.c

block: Don't access request after it might be freed

2012-12-06 11:20:35 +00:00

blk-flush.c

blk-flush: move the queue kick into

2011-10-24 16:24:31 +02:00

blk-integrity.c

block: add export.h to files using EXPORT_SYMBOL/THIS_MODULE macros

2011-10-31 19:31:12 -04:00

blk-ioc.c

…

blk-iopoll.c

…

blk-lib.c

block: fix patch import error in max_discard_sectors check

2011-07-23 20:34:59 +02:00

blk-map.c

block: re-use existing 'reading' variable instead of checking direction again

2011-12-21 15:27:24 +01:00

blk-merge.c

…

blk-settings.c

…

blk-softirq.c

block: Don't check QUEUE_FLAG_SAME_COMP in __blk_complete_request

2011-09-14 09:31:01 +02:00

blk-sysfs.c

block: add blk_queue_dead()

2012-08-02 14:37:54 +01:00

blk-tag.c

block: fix blk_queue_end_tag()

2011-12-29 09:16:28 +01:00

blk-throttle.c

block: add blk_queue_dead()

2012-08-02 14:37:54 +01:00

blk-timeout.c

fault-injection: add ability to export fault_attr in arbitrary directory

2011-08-03 14:25:20 -10:00

blk.h

block: add blk_queue_dead()

2012-08-02 14:37:54 +01:00

bsg-lib.c

block: Change module.h -> export.h in bsg-lib.c

2011-10-31 19:31:13 -04:00

bsg.c

bsg: fix sysfs link remove warning

2012-03-12 12:31:36 -07:00

cfq-iosched.c

block, cfq: fix empty queue crash caused by request merge

2011-12-16 14:04:23 +01:00

cfq.h

…

compat_ioctl.c

…

deadline-iosched.c

…

elevator.c

block: fix request_queue lifetime handling by making blk_queue_cleanup() properly shutdown

2011-10-19 14:42:16 +02:00

genhd.c

block: fix synchronization and limit check in blk_alloc_devt()

2013-03-06 03:24:16 +00:00

ioctl.c

Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

2011-11-06 19:44:47 -08:00

Kconfig

block: add bsg helper library

2011-07-31 22:05:09 +02:00

Kconfig.iosched

…

Makefile

block: add bsg helper library

2011-07-31 22:05:09 +02:00

noop-iosched.c

…

scsi_ioctl.c

scsi: Silence unnecessary warnings about ioctl to partition

2012-07-25 04:11:05 +01:00