Aaron Carroll 63de428b13 deadline-iosched: allow non-sequential batching ...

Deadline currently only batches sector-contiguous requests, so except
for a few circumstances (e.g. requests in a single direction), it is
essentially first come first served.  This is bad for throughput, so
change it to CSCAN, which means requests in a batch do not need to be
sequential and are issued in increasing sector order.

Signed-off-by: Aaron Carroll <aaronc@gelato.unsw.edu.au>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

2008-10-09 08:56:02 +02:00

..

as-iosched.c

Use WARN() in block/

2008-07-26 12:00:07 -07:00

blk-barrier.c

Allow elevators to sort/merge discard requests

2008-10-09 08:56:02 +02:00

blk-core.c

Allow elevators to sort/merge discard requests

2008-10-09 08:56:02 +02:00

blk-exec.c

block: unexport blk_end_sync_rq

2008-07-15 21:21:45 +02:00

blk-integrity.c

block: integrity flags can't use bit ops on unsigned short

2008-07-03 13:21:15 +02:00

blk-ioc.c

cfq-iosched: fix RCU race in the cfq io_context destructor handling

2008-05-07 09:28:57 +02:00

blk-map.c

block/blk-map.c: use the new object_is_on_stack() helper

2008-07-26 12:00:02 -07:00

blk-merge.c

Allow elevators to sort/merge discard requests

2008-10-09 08:56:02 +02:00

blk-settings.c

Add 'discard' request handling

2008-10-09 08:56:01 +02:00

blk-sysfs.c

block: sysfs store function needs to grab queue_lock and use queue_flag_*()

2008-05-07 09:09:39 +02:00

blk-tag.c

block: remove unused ->busy part of the block queue tag map

2008-08-27 09:50:19 +02:00

blk.h

block: Block layer data integrity support

2008-07-03 13:21:13 +02:00

blktrace.c

blktrace: simplify flags handling in __blk_add_trace

2008-10-09 08:56:01 +02:00

bsg.c

block: move cmdfilter from gendisk to request_queue

2008-08-27 09:50:19 +02:00

cfq-iosched.c

cfq-iosched: get rid of enable_idle being unused warning

2008-07-03 13:21:14 +02:00

cmd-filter.c

block: disable sysfs parts of the disk command filter

2008-09-11 14:20:23 +02:00

compat_ioctl.c

Add BLKDISCARD ioctl to allow userspace to discard sectors

2008-10-09 08:56:02 +02:00

deadline-iosched.c

deadline-iosched: allow non-sequential batching

2008-10-09 08:56:02 +02:00

elevator.c

Allow elevators to sort/merge discard requests

2008-10-09 08:56:02 +02:00

genhd.c

block: restore original behavior of /proc/partition when there's no partition

2008-09-01 08:55:10 +02:00

ioctl.c

Allow elevators to sort/merge discard requests

2008-10-09 08:56:02 +02:00

Kconfig

block: Block layer data integrity support

2008-07-03 13:21:13 +02:00

Kconfig.iosched

update I/O sched Kconfig help texts - CFQ is now default, not AS.

2007-02-17 20:08:22 +01:00

Makefile

allow userspace to modify scsi command filter on per device basis

2008-07-03 13:21:14 +02:00

noop-iosched.c

block: let elv_register() return void

2007-12-18 08:29:28 +01:00

scsi_ioctl.c

SG_IO block filter whitelist missing MMC SET READ AHEAD command

2008-10-09 08:56:00 +02:00