Shaohua Li 1a1238a7dd cfq-iosched: improve hw_tag detection ...

If active queue hasn't enough requests and idle window opens, cfq will not
dispatch sufficient requests to hardware. In such situation, current code
will zero hw_tag. But this is because cfq doesn't dispatch enough requests
instead of hardware queue doesn't work. Don't zero hw_tag in such case.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

2009-10-27 08:46:23 +01:00

..

blk-barrier.c

block: allow large discard requests

2009-10-01 21:19:34 +02:00

blk-core.c

block: Seperate read and write statistics of in_flight requests v2

2009-10-06 20:16:55 +02:00

blk-exec.c

block: don't set REQ_NOMERGE unnecessarily

2009-04-28 07:37:33 +02:00

blk-integrity.c

block: fix improper kobject release in blk_integrity_unregister

2009-07-28 09:11:14 +02:00

blk-ioc.c

block: prevent possible io_context->refcount overflow

2009-06-10 23:07:15 +02:00

blk-iopoll.c

block: use interrupts disabled version of raise_softirq_irqoff()

2009-09-11 14:33:32 +02:00

blk-map.c

block: Use accessor functions for queue limits

2009-05-22 23:22:54 +02:00

blk-merge.c

block: Seperate read and write statistics of in_flight requests v2

2009-10-06 20:16:55 +02:00

blk-settings.c

blk-settings: fix function parameter kernel-doc notation

2009-10-12 08:20:47 +02:00

blk-softirq.c

generic-ipi: remove CSD_FLAG_WAIT

2009-02-25 14:13:44 +01:00

blk-sysfs.c

Add missing blk_trace_remove_sysfs to be in pair with blk_trace_init_sysfs

2009-10-01 21:15:46 +02:00

blk-tag.c

block: use proper BLK_RW_ASYNC in blk_queue_start_tag()

2009-10-06 20:19:02 +02:00

blk-timeout.c

block: clean up misc stuff after block layer timeout conversion

2009-04-28 07:37:34 +02:00

blk.h

block: implement mixed merge of different failfast requests

2009-09-11 14:33:30 +02:00

bsg.c

Driver-Core: extend devnode callbacks to provide permissions

2009-09-19 12:50:38 -07:00

cfq-iosched.c

cfq-iosched: improve hw_tag detection

2009-10-27 08:46:23 +01:00

compat_ioctl.c

block: Topology ioctls

2009-10-03 20:52:01 +02:00

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' into for-2.6.33

2009-10-13 12:29:45 +02:00

genhd.c

block: Seperate read and write statistics of in_flight requests v2

2009-10-06 20:16:55 +02:00

ioctl.c

block: Topology ioctls

2009-10-03 20:52:01 +02:00

Kconfig

Make SCSI SG v4 driver enabled by default and remove EXPERIMENTAL dependency, since udev depends on BSG

2009-08-04 22:10:17 +02:00

Kconfig.iosched

block: CFQ is more than a desktop scheduler

2009-10-03 09:40:47 +02:00

Makefile

block: remove the anticipatory IO scheduler

2009-10-03 09:37:51 +02:00

noop-iosched.c

block: get rid of elevator_t typedef

2008-12-29 08:29:50 +01:00

scsi_ioctl.c

block: call blk_scsi_ioctl_init()

2009-07-10 20:31:53 +02:00