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762380ad93
linux/block
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Jens Axboe 762380ad93 block: add notion of a chunk size for request merging 
Some drivers have different limits on what size a request should
optimally be, depending on the offset of the request. Similar to
dividing a device into chunks. Add a setting that allows the driver
to inform the block layer of such a chunk size. The block layer will
then prevent merging across the chunks.

This is needed to optimally support NVMe with a non-zero stripe size.

Signed-off-by: Jens Axboe <axboe@fb.com>
2014-06-05 13:38:39 -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: add notion of a chunk size for request merging 2014-06-05 13:38:39 -06:00
blk-cgroup.c blkcg: use trylock on blkcg_pol_mutex in blkcg_reset_stats() 2014-05-05 13:48:18 -04:00
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-flush.c block: mq flush: clear flush_rq's tag in flush_end_io() 2014-06-04 10:40:16 -06:00
blk-integrity.c
blk-ioc.c
blk-iopoll.c Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next 2014-06-03 12:57:53 -07:00
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: blk_mq_unregister_hctx() can be static 2014-05-30 10:31:13 -06:00
blk-mq-tag.c blk-mq: fix schedule from atomic context 2014-06-03 21:04:39 -06:00
blk-mq-tag.h blk-mq: fix schedule from atomic context 2014-06-03 21:04:39 -06:00
blk-mq.c blk-mq: let blk_mq_tag_to_rq() take blk_mq_tags as the main parameter 2014-06-04 10:23:49 -06:00
blk-mq.h blk-mq: fix schedule from atomic context 2014-06-03 21:04:39 -06:00
blk-settings.c block: add notion of a chunk size for request merging 2014-06-05 13:38:39 -06:00
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 block: ensure that the timer is always added 2014-05-30 15:41:39 -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 bsg: update check for rq based driver for blk-mq 2014-04-16 14:15:46 -06:00
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 block: remove dead code in scsi_ioctl:blk_verify_command 2014-05-29 13:38:50 -06:00