Tejun Heo 03aa264ac1 blkcg: let blkcg core manage per-queue blkg list and counter ... With the previous patch to move blkg list heads and counters to request_queue and blkg, logic to manage them in both policies are almost identical and can be moved to blkcg core. This patch moves blkg link logic into blkg_lookup_create(), implements common blkg unlink code in blkg_destroy(), and updates blkg_destory_all() so that it's policy specific and can skip root group. The updated blkg_destroy_all() is now used to both clear queue for bypassing and elv switching, and release all blkgs on q exit. This patch introduces a race window where policy [de]registration may race against queue blkg clearing. This can only be a problem on cfq unload and shouldn't be a real problem in practice (and we have many other places where this race already exists). Future patches will remove these unlikely races. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>		2012-03-06 21:27:23 +01:00
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partitions	separate partition format handling from generic code	2012-01-03 22:54:06 -05:00
blk-cgroup.c	blkcg: let blkcg core manage per-queue blkg list and counter	2012-03-06 21:27:23 +01:00
blk-cgroup.h	blkcg: let blkcg core manage per-queue blkg list and counter	2012-03-06 21:27:23 +01:00
blk-core.c	blkcg: move per-queue blkg list heads and counters to queue and blkg	2012-03-06 21:27:23 +01:00
blk-exec.c	block: add missing blk_queue_dead() checks	2011-12-14 00:33:37 +01:00
blk-flush.c
blk-integrity.c
blk-ioc.c	block: exit_io_context() should call elevator_exit_icq_fn()	2012-02-15 09:45:53 +01:00
blk-iopoll.c
blk-lib.c
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	block: separate out blk_rq_merge_ok() and blk_try_merge() from elevator functions	2012-02-08 09:19:38 +01:00
blk-settings.c	block: Introduce blk_set_stacking_limits function	2012-01-11 16:27:11 +01:00
blk-softirq.c
blk-sysfs.c	blkcg: add blkcg_{init|drain|exit}_queue()	2012-03-06 21:27:23 +01:00
blk-tag.c	block: fix blk_queue_end_tag()	2011-12-29 09:16:28 +01:00
blk-throttle.c	blkcg: let blkcg core manage per-queue blkg list and counter	2012-03-06 21:27:23 +01:00
blk-timeout.c
blk.h	blkcg: add blkcg_{init|drain|exit}_queue()	2012-03-06 21:27:23 +01:00
bsg-lib.c
bsg.c	bsg: fix sysfs link remove warning	2012-02-08 20:02:03 +01:00
cfq-iosched.c	blkcg: let blkcg core manage per-queue blkg list and counter	2012-03-06 21:27:23 +01:00
cfq.h	blkcg: don't use blkg->plid in stat related functions	2012-03-06 21:27:23 +01:00
compat_ioctl.c	block: Add BLKROTATIONAL ioctl	2012-01-11 16:29:31 +01:00
deadline-iosched.c	elevator: make elevator_init_fn() return 0/-errno	2012-03-06 21:27:21 +01:00
elevator.c	blkcg: let blkcg core manage per-queue blkg list and counter	2012-03-06 21:27:23 +01:00
genhd.c	Block: use a freezable workqueue for disk-event polling	2012-03-02 10:51:00 +01:00
ioctl.c	Merge branch 'for-3.3/core' of git://git.kernel.dk/linux-block	2012-01-15 12:24:45 -08:00
Kconfig	move fs/partitions to block/	2012-01-03 22:54:06 -05:00
Kconfig.iosched	blkcg: make CONFIG_BLK_CGROUP bool	2012-03-06 21:27:21 +01:00
Makefile	separate partition format handling from generic code	2012-01-03 22:54:06 -05:00
noop-iosched.c	elevator: make elevator_init_fn() return 0/-errno	2012-03-06 21:27:21 +01:00
partition-generic.c	block: Fix NULL pointer dereference in sd_revalidate_disk	2012-03-02 10:38:33 +01:00
scsi_ioctl.c	block: fail SCSI passthrough ioctls on partition devices	2012-01-14 15:07:24 -08:00