Jens Axboe 484b4061e6 blk-mq: save memory by freeing requests on unused hardware queues ... Depending on the topology of the machine and the number of queues exposed by a device, we can end up in a situation where some of the hardware queues are unused (as in, they don't map to any software queues). For this case, free up the memory used by the request map, as we will not use it. This can be a substantial amount of memory, depending on the number of queues vs CPUs and the queue depth of the device. Signed-off-by: Jens Axboe <axboe@fb.com>		2014-05-21 14:01:15 -06:00
..
partitions	block: Use macros from compiler.h instead of __attribute__((...))	2014-02-18 12:20:01 -08:00
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	blk-mq: Micro-optimize blk_queue_nomerges() check	2014-05-20 15:49:03 -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: rename mq_flush_work struct request member	2014-04-16 14:15:25 -06:00
blk-integrity.c	bio-integrity: Convert to bvec_iter	2013-11-23 22:33:50 -08:00
blk-ioc.c	block: Substitute rcu_access_pointer() for rcu_dereference_raw()	2014-02-18 12:21:26 -08:00
blk-iopoll.c	block/blk-iopoll.c: use iop instead of iopoll	2014-05-02 11:37:41 -06:00
blk-lib.c	block: add cond_resched() to potentially long running ioctl discard loop	2014-02-12 09:36:37 -07:00
blk-map.c	block: remove struct request buffer member	2014-04-15 14:03:02 -06:00
blk-merge.c	block: Explicitly handle discard/write same segments	2014-02-07 13:54:08 -07:00
blk-mq-cpu.c	blk-mq: allow the hctx cpu hotplug notifier to return errors	2014-05-21 13:59:08 -06:00
blk-mq-cpumap.c	blk-mq: split out tag initialization, support shared tags	2014-04-15 14:18:02 -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: allow changing of queue depth through sysfs	2014-05-20 11:49:02 -06:00
blk-mq-tag.h	blk-mq: allow changing of queue depth through sysfs	2014-05-20 11:49:02 -06:00
blk-mq.c	blk-mq: save memory by freeing requests on unused hardware queues	2014-05-21 14:01:15 -06:00
blk-mq.h	blk-mq: allow the hctx cpu hotplug notifier to return errors	2014-05-21 13:59:08 -06:00
blk-settings.c	bcache/md: Use raid stripe size	2014-01-08 13:05:09 -08:00
blk-softirq.c	block: fix regression with block enabled tagging	2014-04-09 21:54:06 -06:00
blk-sysfs.c	blk-mq: allow changing of queue depth through sysfs	2014-05-20 11:49:02 -06:00
blk-tag.c	block: Reserve only one queue tag for sync IO if only 3 tags are available	2013-06-28 21:32:27 +02:00
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: Remove unused function bsg_goose_queue()	2012-12-06 14:33:02 +01:00
bsg.c	hlist: drop the node parameter from iterators	2013-02-27 19:10:24 -08:00
cfq-iosched.c	block: Fix format string mismatch in cfq-iosched.c	2014-04-30 15:56:10 -06:00
cmdline-parser.c	block: remove unrelated header files and export symbol	2014-01-21 20:18:26 -08:00
compat_ioctl.c	kernel-wide: fix missing validations on __get/__put/__copy_to/__copy_from_user()	2013-09-11 15:58:18 -07:00
deadline-iosched.c	block: Stop abusing csd.list for fifo_time	2014-02-24 14:46:32 -08:00
elevator.c	block: fix regression with block enabled tagging	2014-04-09 21:54:06 -06:00
genhd.c	block: Convert kmalloc_node(...GFP_ZERO...) to kzalloc_node(...)	2013-09-11 13:22:03 -06:00
ioctl.c	block: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO	2013-11-08 09:05:31 -07:00
ioprio.c	block: move ioprio.c from fs/ to block/	2014-05-19 11:02:18 -06:00
Kconfig	block: change config option name for cmdline partition parsing	2013-09-30 14:31:02 -07:00
Kconfig.iosched	blkcg: make CONFIG_BLK_CGROUP bool	2012-03-06 21:27:21 +01:00
Makefile	block: move mm/bounce.c to block/	2014-05-19 20:01:52 -06:00
noop-iosched.c	elevator: Fix a race in elevator switching	2013-07-03 13:25:24 +02:00
partition-generic.c	Revert "loop: cleanup partitions when detaching loop device"	2013-04-08 10:12:11 +02:00
scsi_ioctl.c	block: Fix memory leak in rw_copy_check_uvector() handling	2014-01-21 20:36:17 -08:00