Vivek Goyal de701c74a3 blk-throttle: Some cleanups and race fixes in limit update code ... When throttle group limits are updated through cgroups, a thread is woken up to process these updates. While reviewing that code, oleg noted couple of race conditions existed in the code and he also suggested that code can be simplified. This patch fixes the races simplifies the code based on Oleg's suggestions: - Use xchg(). - Introduced a common function throtl_update_blkio_group_common() which is shared now by all iops/bps update functions. Reviewed-by: Oleg Nesterov <oleg@redhat.com> Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Fixed a merge issue, throtl_schedule_delayed_work() takes throtl_data as the argument now, not the queue. Signed-off-by: Jens Axboe <jaxboe@fusionio.com>		2011-03-07 21:09:32 +01:00
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blk-cgroup.c	blk-cgroup: Allow creation of hierarchical cgroups	2010-11-15 19:37:36 +01:00
blk-cgroup.h	blkio-throttle: limit max iops value to UINT_MAX	2010-10-01 21:16:41 +02:00
blk-core.c	Merge branch 'for-linus' of ../linux-2.6-block into block-for-2.6.39/core	2011-03-04 19:09:02 +01:00
blk-exec.c	block: Prevent hang_check firing during long I/O	2010-09-24 15:52:09 +02:00
blk-flush.c	Merge branch 'for-linus' of ../linux-2.6-block into block-for-2.6.39/core	2011-03-04 19:09:02 +01:00
blk-integrity.c	block: Fix double free in blk_integrity_unregister	2010-10-15 15:49:18 +02:00
blk-ioc.c	block: Clean up exit_io_context() source code.	2010-12-21 15:07:45 +01:00
blk-iopoll.c	tree-wide: fix assorted typos all over the place	2009-12-04 15:39:55 +01:00
blk-lib.c	block: fix kernel-doc format for blkdev_issue_zeroout	2011-03-01 13:45:24 -05:00
blk-map.c	block: check for proper length of iov entries earlier in blk_rq_map_user_iov()	2010-11-29 10:04:50 +01:00
blk-merge.c	Merge branch 'for-2.6.38/core' of git://git.kernel.dk/linux-2.6-block	2011-01-13 10:45:01 -08:00
blk-settings.c	block: Initialize ->queue_lock to internal lock at queue allocation time	2011-03-02 19:06:49 -05:00
blk-softirq.c	generic-ipi: remove CSD_FLAG_WAIT	2009-02-25 14:13:44 +01:00
blk-sysfs.c	block: Move blk_throtl_exit() call to blk_cleanup_queue()	2011-03-02 19:06:49 -05:00
blk-tag.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
blk-throttle.c	blk-throttle: Some cleanups and race fixes in limit update code	2011-03-07 21:09:32 +01:00
blk-timeout.c	block: ensure jiffies wrap is handled correctly in blk_rq_timed_out_timer	2010-04-21 17:42:08 +02:00
blk.h	block: reimplement FLUSH/FUA to support merge	2011-01-25 12:43:54 +01:00
bsg.c	[SCSI] bsg: correct fault if queue object removed while dev_t open	2010-12-09 09:41:14 -06:00
cfq-iosched.c	Merge branch 'block-for-2.6.39-core' of ssh://master.kernel.org/pub/scm/linux/kernel/git/tj/misc into for-2.6.39/core	2011-03-07 09:40:21 +01:00
cfq.h	blk-cgroup: Prepare the base for supporting more than one IO control policies	2010-09-16 08:42:04 +02:00
compat_ioctl.c	BKL: remove extraneous #include <smp_lock.h>	2010-11-17 08:59:32 -08:00
deadline-iosched.c	block: convert to pos and nr_sectors accessors	2009-05-11 09:50:54 +02:00
elevator.c	Merge branch 'for-linus' of ../linux-2.6-block into block-for-2.6.39/core	2011-03-04 19:09:02 +01:00
genhd.c	Merge branch 'for-linus' of ../linux-2.6-block into block-for-2.6.39/core	2011-03-04 19:09:02 +01:00
ioctl.c	block: fix refcounting in BLKBSZSET	2011-02-24 08:54:21 -08:00
Kconfig	kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT	2011-01-20 17:02:05 -08:00
Kconfig.iosched	blk-cgroup: config options re-arrangement	2010-04-26 19:27:56 +02:00
Makefile	Merge branch 'for-2.6.37/barrier' of git://git.kernel.dk/linux-2.6-block	2010-10-22 17:07:18 -07:00
noop-iosched.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
scsi_ioctl.c	block: take care not to overflow when calculating total iov length	2010-11-10 14:40:42 +01:00