Jens Axboe c7c22e4d5c block: add support for IO CPU affinity ... This patch adds support for controlling the IO completion CPU of either all requests on a queue, or on a per-request basis. We export a sysfs variable (rq_affinity) which, if set, migrates completions of requests to the CPU that originally submitted it. A bio helper (bio_set_completion_cpu()) is also added, so that queuers can ask for completion on that specific CPU. In testing, this has been show to cut the system time by as much as 20-40% on synthetic workloads where CPU affinity is desired. This requires a little help from the architecture, so it'll only work as designed for archs that are using the new generic smp helper infrastructure. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>		2008-10-09 08:56:09 +02:00
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as-iosched.c	block: make kblockd_schedule_work() take the queue as parameter	2008-10-09 08:56:09 +02:00
blk-barrier.c	Allow elevators to sort/merge discard requests	2008-10-09 08:56:02 +02:00
blk-core.c	block: add support for IO CPU affinity	2008-10-09 08:56:09 +02:00
blk-exec.c	Add some block/ source files to the kernel-api docbook. Fix kernel-doc notation in them as needed. Fix changed function parameter names. Fix typos/spellos. In comments, change REQ_SPECIAL to REQ_TYPE_SPECIAL and REQ_BLOCK_PC to REQ_TYPE_BLOCK_PC.	2008-10-09 08:56:03 +02:00
blk-integrity.c	block: implement and use {disk|part}_to_dev()	2008-10-09 08:56:07 +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	Add some block/ source files to the kernel-api docbook. Fix kernel-doc notation in them as needed. Fix changed function parameter names. Fix typos/spellos. In comments, change REQ_SPECIAL to REQ_TYPE_SPECIAL and REQ_BLOCK_PC to REQ_TYPE_BLOCK_PC.	2008-10-09 08:56:03 +02:00
blk-merge.c	block: move stats from disk to part0	2008-10-09 08:56:08 +02:00
blk-settings.c	block: add support for IO CPU affinity	2008-10-09 08:56:09 +02:00
blk-softirq.c	block: add support for IO CPU affinity	2008-10-09 08:56:09 +02:00
blk-sysfs.c	block: add support for IO CPU affinity	2008-10-09 08:56:09 +02:00
blk-tag.c	Add some block/ source files to the kernel-api docbook. Fix kernel-doc notation in them as needed. Fix changed function parameter names. Fix typos/spellos. In comments, change REQ_SPECIAL to REQ_TYPE_SPECIAL and REQ_BLOCK_PC to REQ_TYPE_BLOCK_PC.	2008-10-09 08:56:03 +02:00
blk.h	block: add support for IO CPU affinity	2008-10-09 08:56:09 +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	block: make kblockd_schedule_work() take the queue as parameter	2008-10-09 08:56:09 +02:00
cmd-filter.c	block: move holder_dir from disk to part0	2008-10-09 08:56:08 +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: non-functional fixes	2008-10-09 08:56:03 +02:00
elevator.c	block: use linux/uaccess.h in elevator.c instead of asm variant	2008-10-09 08:56:09 +02:00
genhd.c	block: allow disk to have extended device number	2008-10-09 08:56:08 +02:00
ioctl.c	block: make partition array dynamic	2008-10-09 08:56:08 +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	block: split softirq handling into blk-softirq.c	2008-10-09 08:56:09 +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