Vivek Goyal f469a7b4d5 blk-cgroup: Allow sleeping while dynamically allocating a group ... Currently, all the cfq_group or throtl_group allocations happen while we are holding ->queue_lock and sleeping is not allowed. Soon, we will move to per cpu stats and also need to allocate the per group stats. As one can not call alloc_percpu() from atomic context as it can sleep, we need to drop ->queue_lock, allocate the group, retake the lock and continue processing. In throttling code, I check the queue DEAD flag again to make sure that driver did not call blk_cleanup_queue() in the mean time. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>		2011-05-20 20:34:52 +02:00
..
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
blk-cgroup.c	blk-cgroup: move some fields of unaccounted_time file under right config option	2011-05-20 20:34:52 +02:00
blk-cgroup.h	blk-cgroup: move some fields of unaccounted_time file under right config option	2011-05-20 20:34:52 +02:00
blk-core.c	blk-cgroup: Allow sleeping while dynamically allocating a group	2011-05-20 20:34:52 +02:00
blk-exec.c	block: Remove 'plug/unplug' comment in blk_execute_rq_nowait	2011-05-05 15:10:05 -06:00
blk-flush.c	block: hold queue if flush is running for non-queueable flush drive	2011-05-06 11:36:25 -06:00
blk-integrity.c	dm: improve block integrity support	2011-04-05 23:52:43 +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	blkdev: Do not return -EOPNOTSUPP if discard is supported	2011-05-06 19:30:01 -06:00
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	block: attempt to merge with existing requests on plug flush	2011-03-21 10:14:27 +01:00
blk-settings.c	block: Fix discard topology stacking and reporting	2011-05-18 10:37:35 +02:00
blk-softirq.c	generic-ipi: remove CSD_FLAG_WAIT	2009-02-25 14:13:44 +01:00
blk-sysfs.c	Merge commit 'v2.6.39' into for-2.6.40/core	2011-05-20 20:33:15 +02:00
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-cgroup: Allow sleeping while dynamically allocating a group	2011-05-20 20:34:52 +02:00
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	Merge commit 'v2.6.39' into for-2.6.40/core	2011-05-20 20:33:15 +02:00
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	blk-cgroup: Allow sleeping while dynamically allocating a group	2011-05-20 20:34:52 +02:00
cfq.h	blk-cgroup: Add unaccounted time to timeslice_used.	2011-03-12 16:54:00 +01:00
compat_ioctl.c	BKL: remove extraneous #include <smp_lock.h>	2010-11-17 08:59:32 -08:00
deadline-iosched.c	block: remove per-queue plugging	2011-03-10 08:52:07 +01:00
elevator.c	Merge commit 'v2.6.39' into for-2.6.40/core	2011-05-20 20:33:15 +02:00
genhd.c	block: don't propagate unlisted DISK_EVENTs to userland	2011-04-21 19:43:58 +02:00
ioctl.c	block: fix refcounting in BLKBSZSET	2011-02-24 08:54:21 -08:00
noop-iosched.c	block: remove per-queue plugging	2011-03-10 08:52:07 +01:00
scsi_ioctl.c	block: take care not to overflow when calculating total iov length	2010-11-10 14:40:42 +01:00