Gui Jianfeng 7278c9c19b cfq-iosched: don't check cfqg in choose_service_tree() ...

When cfq_choose_cfqg() is called in select_queue(), there must be at least one
backlogged CFQ queue waiting for dispatching, hence there must be at least one
backlogged CFQ group on service tree. So we never call choose_service_tree()
with cfqg == NULL.

Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

2010-12-17 08:57:14 +01:00

..

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

block: Rename "block_remap" tracepoint to "block_bio_remap" to clarify the event.

2010-11-16 12:53:39 +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

block: remove BLKDEV_IFL_WAIT

2010-09-16 20:52:58 +02:00

blk-integrity.c

block: Fix double free in blk_integrity_unregister

2010-10-15 15:49:18 +02:00

blk-ioc.c

block: remove unused copy_io_context()

2010-11-11 13:40:11 +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: remove BLKDEV_IFL_WAIT

2010-09-16 20:52:58 +02:00

blk-map.c

block: check for proper length of iov entries in blk_rq_map_user_iov()

2010-11-10 14:40:42 +01:00

blk-merge.c

Revert "block: fix accounting bug on cross partition merges"

2010-10-24 22:06:02 +02:00

blk-settings.c

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-softirq.c

…

blk-sysfs.c

block: fix use-after-free bug in blk throttle code

2010-10-23 20:40:26 +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

blkio-throttle: Fix possible multiplication overflow in iops calculations

2010-10-01 21:16:42 +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

Revert "block: fix accounting bug on cross partition merges"

2010-10-24 22:06:02 +02:00

bsg.c

Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl

2010-10-22 10:52:56 -07:00

cfq-iosched.c

cfq-iosched: don't check cfqg in choose_service_tree()

2010-12-17 08:57:14 +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

block: read i_size with i_size_read()

2010-11-10 14:40:53 +01:00

deadline-iosched.c

…

elevator.c

block: remove REQ_HARDBARRIER

2010-11-10 14:54:09 +01:00

genhd.c

Revert "block: fix accounting bug on cross partition merges"

2010-10-24 22:06:02 +02:00

ioctl.c

Merge branch 'cleanup-bd_claim' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc into for-2.6.38/core

2010-11-27 19:49:18 +01:00

Kconfig

blkio: Core implementation of throttle policy

2010-09-16 08:42:52 +02:00

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