Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Jens Axboe 05f1dd5315 block: add queue flag for disabling SG merging ... If devices are not SG starved, we waste a lot of time potentially collapsing SG segments. Enough that 1.5% of the CPU time goes to this, at only 400K IOPS. Add a queue flag, QUEUE_FLAG_NO_SG_MERGE, which just returns the number of vectors in a bio instead of looping over all segments and checking for collapsible ones. Add a BLK_MQ_F_SG_MERGE flag so that drivers can opt-in on the sg merging, if they so desire. Signed-off-by: Jens Axboe <axboe@fb.com>		2014-05-29 09:53:32 -06:00
..
partitions
bio-integrity.c	block: move bio.c and bio-integrity.c from fs/ to block/	2014-05-19 08:34:46 -06:00
bio.c	block: move bio.c and bio-integrity.c from fs/ to block/	2014-05-19 08:34:46 -06:00
blk-cgroup.c	Merge branch 'for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2014-04-03 13:05:42 -07:00
blk-cgroup.h	Merge branch 'for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2014-04-03 13:05:42 -07:00
blk-core.c	block: remove 'magic' from struct blk_plug	2014-05-29 08:09:00 -06:00
blk-exec.c	blk-mq: merge blk_mq_insert_request and blk_mq_run_request	2014-03-21 08:57:37 -06:00
blk-flush.c	blk-mq: add helper to insert requests from irq context	2014-05-28 08:08:02 -06:00
blk-integrity.c
blk-ioc.c
blk-iopoll.c	block/blk-iopoll.c: use iop instead of iopoll	2014-05-02 11:37:41 -06:00
blk-lib.c	block/blk-lib.c: make __blkdev_issue_zeroout static	2014-05-26 17:39:09 -06:00
blk-map.c	block: remove struct request buffer member	2014-04-15 14:03:02 -06:00
blk-merge.c	block: add queue flag for disabling SG merging	2014-05-29 09:53:32 -06:00
blk-mq-cpu.c	blk-mq: add file comments and update copyright notices	2014-05-28 10:15:41 -06:00
blk-mq-cpumap.c	blk-mq: add file comments and update copyright notices	2014-05-28 10:15:41 -06:00
blk-mq-sysfs.c	blk-mq: improve support for shared tags maps	2014-05-13 15:10:52 -06:00
blk-mq-tag.c	blk-mq: add file comments and update copyright notices	2014-05-28 10:15:41 -06:00
blk-mq-tag.h	blk-mq: remove blk_mq_wait_for_tags	2014-05-28 09:49:23 -06:00
blk-mq.c	block: add queue flag for disabling SG merging	2014-05-29 09:53:32 -06:00
blk-mq.h	blk-mq: pass in suggested NUMA node to ->alloc_hctx()	2014-05-27 12:06:53 -06:00
blk-settings.c
blk-softirq.c	block: fix regression with block enabled tagging	2014-04-09 21:54:06 -06:00
blk-sysfs.c	block: only allocate/free mq_usage_counter in blk-mq	2014-05-27 09:37:08 -06:00
blk-tag.c
blk-throttle.c	block/blk-throttle.c: fix return of 0/1 with return type bool	2014-05-02 11:38:03 -06:00
blk-timeout.c	blk-mq: improve support for shared tags maps	2014-05-13 15:10:52 -06:00
blk.h	blk-mq: allow changing of queue depth through sysfs	2014-05-20 11:49:02 -06:00
bounce.c	block: move mm/bounce.c to block/	2014-05-19 20:01:52 -06:00
bsg-lib.c
bsg.c
cfq-iosched.c	block: Fix format string mismatch in cfq-iosched.c	2014-04-30 15:56:10 -06:00
cmdline-parser.c
compat_ioctl.c
deadline-iosched.c
elevator.c	block: fix regression with block enabled tagging	2014-04-09 21:54:06 -06:00
genhd.c
ioctl.c
ioprio.c	block: move ioprio.c from fs/ to block/	2014-05-19 11:02:18 -06:00
Kconfig
Kconfig.iosched
Makefile	block: move mm/bounce.c to block/	2014-05-19 20:01:52 -06:00
noop-iosched.c
partition-generic.c
scsi_ioctl.c