Jens Axboe 70ed28b92a block: leave the request timeout timer running even on an empty list ... For sync IO, we'll often do them serialized. This means we'll be touching the queue timer for every IO, as opposed to only occasionally like we do for queued IO. Instead of deleting the timer when the last request is removed, just let continue running. If a new request comes up soon we then don't have to readd the timer again. If no new requests arrive, the timer will expire without side effect later. This improves high iops sync IO by ~1%. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>		2008-12-29 08:28:42 +01:00
..
Kconfig	blktrace: port to tracepoints	2008-11-26 12:13:34 +01:00
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: unify request timeout handling	2008-10-09 08:56:13 +02:00
as-iosched.c	block: as/cfq ssd idle check update	2008-10-09 08:56:19 +02:00
blk-barrier.c	block: internal dequeue shouldn't start timer	2008-12-03 12:41:26 +01:00
blk-core.c	block: leave the request timeout timer running even on an empty list	2008-12-29 08:28:42 +01:00
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: Switch blk_integrity_compare from bdev to gendisk	2008-10-09 08:56:21 +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	When block layer fails to map iov, it calls bio_unmap_user to undo	2008-12-03 12:41:20 +01:00
blk-merge.c	block: remove unused ll_new_mergeable()	2008-11-06 08:41:55 +01:00
blk-settings.c	block: fix setting of max_segment_size and seg_boundary mask	2008-12-03 12:55:55 +01:00
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: leave the request timeout timer running even on an empty list	2008-12-29 08:28:42 +01:00
blk.h	block: remove __generic_unplug_device() from exports	2008-10-17 14:03:08 +02:00
blktrace.c	blktrace: port to tracepoints	2008-11-26 12:13:34 +01:00
bsg.c	Enforce a minimum SG_IO timeout	2008-12-05 14:49:18 -08:00
cfq-iosched.c	block: as/cfq ssd idle check update	2008-10-09 08:56:19 +02:00
cmd-filter.c	[PATCH] introduce fmode_t, do annotations	2008-10-21 07:47:06 -04:00
compat_ioctl.c	[PATCH 1/2] kill FMODE_NDELAY_NOW	2008-12-04 04:22:57 -05:00
deadline-iosched.c	deadline-iosched: non-functional fixes	2008-10-09 08:56:03 +02:00
elevator.c	Merge branches 'tracing/ftrace', 'tracing/function-graph-tracer' and 'tracing/urgent' into tracing/core	2008-12-05 14:45:22 +01:00
genhd.c	block: set disk->node_id before it's being used	2008-12-03 12:41:20 +01:00
ioctl.c	block: make add_partition() return pointer to hd_struct	2008-11-18 15:08:56 +01:00
noop-iosched.c	block: let elv_register() return void	2007-12-18 08:29:28 +01:00
scsi_ioctl.c	Enforce a minimum SG_IO timeout	2008-12-05 14:49:18 -08:00