Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Christoph Hellwig 4e68a01142 blk-mq: don't redistribute hardware queues on a CPU hotplug event ... Currently blk-mq will totally remap hardware context when a CPU hotplug even happened, which causes major havoc for drivers, as they are never told about this remapping. E.g. any carefully sorted out CPU affinity will just be completely messed up. The rebuild also doesn't really help for the common case of cpu hotplug, which is soft onlining / offlining of cpus - in this case we should just leave the queue and irq mapping as is. If it actually worked it would have helped in the case of physical cpu hotplug, although for that we'd need a way to actually notify the driver. Note that drivers may already be able to accommodate such a topology change on their own, e.g. using the reset_controller sysfs file in NVMe will cause the driver to get things right for this case. With the rebuild removed we will simplify retain the queue mapping for a soft offlined CPU that will work when it comes back online, and will map any newly onlined CPU to queue 0 until the driver initiates a rebuild of the queue map. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>		2016-09-15 08:42:03 -06:00
..
partitions	block: atari: Return early for unsupported sector size	2016-07-13 09:31:44 -07:00
badblocks.c	block, badblocks: introduce devm_init_badblocks	2016-01-09 08:39:04 -08:00
bio-integrity.c	block: rename bio bi_rw to bi_opf	2016-08-07 14:41:02 -06:00
bio.c	block: remove remnant refs to hardsect	2016-09-14 08:44:57 -06:00
blk-cgroup.c	block/blk-cgroup.c: Declare local symbols static	2016-06-14 09:09:33 -06:00
blk-core.c	block: add poll_considered statistic	2016-09-14 08:41:21 -06:00
blk-exec.c	block: Fix spelling in a source code comment	2016-07-20 21:28:22 -06:00
blk-flush.c	block, drivers, fs: rename REQ_FLUSH to REQ_PREFLUSH	2016-06-07 13:41:38 -06:00
blk-integrity.c	block, libnvdimm, nvme: provide a built-in blk_integrity nop profile	2015-10-21 14:43:45 -06:00
blk-ioc.c	mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd	2015-11-06 17:50:42 -08:00
blk-lib.c	Merge branch 'for-4.8/drivers' of git://git.kernel.dk/linux-block	2016-07-26 15:37:51 -07:00
blk-map.c	block: simplify and export blk_rq_append_bio	2016-07-20 17:38:32 -06:00
blk-merge.c	block: make sure a big bio is split into at most 256 bvecs	2016-08-24 08:17:24 -06:00
blk-mq-cpu.c
blk-mq-cpumap.c	blk-mq: Avoid memoryless numa node encoded in hctx numa_node	2015-12-03 09:56:27 -07:00
blk-mq-sysfs.c	block: enable zeroing of io_poll statistics	2016-09-14 08:41:23 -06:00
blk-mq-tag.c	blk-mq: Introduce blk_mq_reinit_tagset	2016-07-08 08:38:49 -06:00
blk-mq-tag.h	blk-mq: factor out a helper to iterate all tags for a request_queue	2015-10-01 10:10:57 +02:00
blk-mq.c	blk-mq: don't redistribute hardware queues on a CPU hotplug event	2016-09-15 08:42:03 -06:00
blk-mq.h	blk-mq: dynamic h/w context count	2016-02-09 12:42:17 -07:00
blk-settings.c	block: kill off q->flush_flags	2016-04-13 13:33:19 -06:00
blk-softirq.c
blk-sysfs.c	block: expose QUEUE_FLAG_DAX in sysfs	2016-07-20 21:01:08 -06:00
blk-tag.c
blk-throttle.c	block: rename bio bi_rw to bi_opf	2016-08-07 14:41:02 -06:00
blk-timeout.c	block: remove REQ_NO_TIMEOUT flag	2015-12-22 09:38:34 -07:00
blk.h	block: simplify and export blk_rq_append_bio	2016-07-20 17:38:32 -06:00
bounce.c	Merge branch 'for-linus' of git://git.kernel.dk/linux-block	2015-09-19 18:57:09 -07:00
bsg-lib.c
bsg.c
cfq-iosched.c	block: rename bio bi_rw to bi_opf	2016-08-07 14:41:02 -06:00
cmdline-parser.c
compat_ioctl.c	mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros	2016-04-04 10:41:08 -07:00
deadline-iosched.c	block: do not merge requests without consulting with io scheduler	2016-07-20 21:35:12 -06:00
elevator.c	block: Fix secure erase	2016-08-16 09:16:51 -06:00
genhd.c	block: fix bdi vs gendisk lifetime mismatch	2016-08-04 14:19:16 -06:00
ioctl.c	DAX error handling for 4.7	2016-05-26 19:34:26 -07:00
ioprio.c	block: fix use-after-free in sys_ioprio_get()	2016-07-01 08:39:24 -06:00
Kconfig	block: remove BLK_DEV_DAX config option	2016-08-04 08:50:07 -04:00
Kconfig.iosched
Makefile	Initial roundup of 4.5 merge window patches	2016-01-23 18:45:06 -08:00
noop-iosched.c	elevator: use list_{first,prev,next}_entry	2015-11-16 15:21:48 -07:00
partition-generic.c	block/partition-generic.c: Remove a set-but-not-used variable	2016-06-14 09:09:15 -06:00
scsi_ioctl.c	mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM	2015-11-06 17:50:42 -08:00
t10-pi.c	block: Consolidate static integrity profile properties	2015-10-21 14:42:38 -06:00