Jens Axboe e3ba9ae58a block: reserve some tags just for sync IO ... By only allowing async IO to consume 3/4 ths of the tag depth, we always have slots free to serve sync IO. This is important to avoid having writes fill the entire tag queue, thus starving reads. Original patch and idea from Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>		2008-10-09 08:56:19 +02:00
..
as-iosched.c	block: as/cfq ssd idle check update	2008-10-09 08:56:19 +02:00
blk-barrier.c	block: adjust blkdev_issue_discard for swap	2008-10-09 08:56:17 +02:00
blk-core.c	block: add a queue flag for request stacking support	2008-10-09 08:56:18 +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	block: make blk_rq_map_user take a NULL user-space buffer	2008-10-09 08:56:11 +02:00
blk-merge.c	block: inherit CPU completion on bio->rq and rq->rq merges	2008-10-09 08:56:09 +02:00
blk-settings.c	block: unify request timeout handling	2008-10-09 08:56:13 +02:00
blk-softirq.c	block: add fault injection mechanism for faking request timeouts	2008-10-09 08:56:17 +02:00
blk-sysfs.c	block: add support for IO CPU affinity	2008-10-09 08:56:09 +02:00
blk-tag.c	block: reserve some tags just for sync IO	2008-10-09 08:56:19 +02:00
blk-timeout.c	block: use rq complete marking in blk_abort_request()	2008-10-09 08:56:17 +02:00
blk.h	block: add fault injection mechanism for faking request timeouts	2008-10-09 08:56:17 +02:00
blktrace.c	blktrace: simplify flags handling in __blk_add_trace	2008-10-09 08:56:01 +02:00
bsg.c	block: introduce struct rq_map_data to use reserved pages	2008-10-09 08:56:10 +02:00
cfq-iosched.c	block: as/cfq ssd idle check update	2008-10-09 08:56:19 +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: Add interface to abort queued requests	2008-10-09 08:56:13 +02:00
genhd.c	block: add fault injection mechanism for faking request timeouts	2008-10-09 08:56:17 +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
Makefile	block: unify request timeout handling	2008-10-09 08:56:13 +02:00
noop-iosched.c	block: let elv_register() return void	2007-12-18 08:29:28 +01:00
scsi_ioctl.c	block: introduce struct rq_map_data to use reserved pages	2008-10-09 08:56:10 +02:00