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linux-2.6/block
Divyesh Shah 875feb63b9 cfq-iosched: Respect ioprio_class when preempting
In cfq_should_preempt(), we currently allow some cases where a non-RT request
can preempt an ongoing RT cfqq timeslice. This should not happen.
Examples include:

o A sync_noidle wl type non-RT request pre-empting a sync_noidle wl type cfqq
  on which we are idling.
o Once we have per-cgroup async queues, a non-RT sync request pre-empting a RT
  async cfqq.

Signed-off-by: Divyesh Shah<dpshah@google.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2010-01-11 16:16:18 +01:00
..
blk-barrier.c block: Honor the gfp_mask for alloc_page() in blkdev_issue_discard() 2009-12-29 08:53:54 +01:00
blk-cgroup.c block: include linux/err.h to use ERR_PTR 2009-12-07 09:47:07 +01:00
blk-cgroup.h blkio: Implement dynamic io controlling policy registration 2009-12-04 16:38:14 +01:00
blk-core.c
blk-exec.c
blk-integrity.c
blk-ioc.c block: removed unused as_io_context 2010-01-11 14:29:20 +01:00
blk-iopoll.c tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
blk-map.c
blk-merge.c
blk-settings.c block: bdev_stack_limits wrapper 2010-01-11 14:29:20 +01:00
blk-softirq.c
blk-sysfs.c
blk-tag.c
blk-timeout.c
blk.h
bsg.c
cfq-iosched.c cfq-iosched: Respect ioprio_class when preempting 2010-01-11 16:16:18 +01:00
compat_ioctl.c
deadline-iosched.c
elevator.c
genhd.c block: Fix discard alignment calculation and printing 2010-01-11 14:29:19 +01:00
ioctl.c
Kconfig blkio: Some debugging aids for CFQ 2009-12-03 19:28:52 +01:00
Kconfig.iosched blkio: Allow CFQ group IO scheduling even when CFQ is a module 2009-12-04 16:38:14 +01:00
Makefile blkio: Introduce blkio controller cgroup interface 2009-12-03 19:28:51 +01:00
noop-iosched.c
scsi_ioctl.c