linux/block
Jens Axboe 35e6077cb1 [PATCH] cfq-iosched: correctly set ioprio on both targets
Patch originally from Vasily Tarasov <vtaras@sw.ru>

If you set io-priority of process 1 using sys_ioprio_set system call by
another process 2 (like ionice do), then cfq_init_prio_data() function
sets priority of process 2 (current) on queue of process 1 and clears
the flag, that designates change of ioprio.  So the process  1 will work
like with priority of process 2.

I propose not to call cfq_init_prio_data() on io-priority change, but
only mark queue as queue with changed prority.  Every time when new
request comes cfq-scheduler checks for this flag and atomaticaly changes
priority of queue to new value.

Signed-off-by: Jens Axboe <axboe@suse.de>
2006-06-23 17:10:39 +02:00
..
as-iosched.c [PATCH] Kill PF_SYNCWRITE flag 2006-06-23 17:10:39 +02:00
blktrace.c [PATCH] Block queue IO tracing support (blktrace) as of 2006-03-23 2006-03-23 20:00:26 +01:00
cfq-iosched.c [PATCH] cfq-iosched: correctly set ioprio on both targets 2006-06-23 17:10:39 +02:00
deadline-iosched.c [PATCH] iosched: use hlist for request hashtable 2006-06-23 17:10:38 +02:00
elevator.c [PATCH] remove dead code from elevator switching 2006-06-23 17:10:38 +02:00
genhd.c [PATCH] Driver core: add generic "subsystem" link to all devices 2006-06-21 12:40:49 -07:00
ioctl.c [PATCH] Block queue IO tracing support (blktrace) as of 2006-03-23 2006-03-23 20:00:26 +01:00
Kconfig [PATCH] config: fix CONFIG_LFS option 2006-03-31 12:18:55 -08:00
Kconfig.iosched [PATCH] Make CFQ the default IO scheduler 2006-06-23 17:10:39 +02:00
ll_rw_blk.c [PATCH] Kill PF_SYNCWRITE flag 2006-06-23 17:10:39 +02:00
Makefile [PATCH] Block queue IO tracing support (blktrace) as of 2006-03-23 2006-03-23 20:00:26 +01:00
noop-iosched.c [PATCH] elevator switching race 2006-06-08 15:14:23 -07:00
scsi_ioctl.c [SCSI] unify SCSI_IOCTL_SEND_COMMAND implementations 2006-04-13 10:13:15 -05:00