AcoSail/kernel_optimize_test
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e57690fe00
kernel_optimize_test/block
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Jens Axboe e57690fe00 blk-mq: don't overwrite rq->mq_ctx 
We do this in a few places, if the CPU is offline. This isn't allowed,
though, since on multi queue hardware, we can't just move a request
from one software queue to another, if they map to different hardware
queues. The request and tag isn't valid on another hardware queue.

This can happen if plugging races with CPU offlining. But it does
no harm, since it can only happen in the window where we are
currently busy freezing the queue and flushing IO, in preparation
for redoing the software <-> hardware queue mappings.

Signed-off-by: Jens Axboe <axboe@fb.com>
2016-08-24 15:34:35 -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: Fix secure erase 2016-08-16 09:16:51 -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: Fix race triggered by blk_set_queue_dying() 2016-08-16 19:36:14 -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: add file comments and update copyright notices 2014-05-28 10:15:41 -06:00
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 blk-mq: fix deadlock in blk_mq_register_disk() error path 2016-08-04 14:19:16 -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 overwrite rq->mq_ctx 2016-08-24 15:34:35 -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 block: fix regression with block enabled tagging 2014-04-09 21:54:06 -06:00
blk-sysfs.c block: expose QUEUE_FLAG_DAX in sysfs 2016-07-20 21:01:08 -06:00
blk-tag.c block: support different tag allocation policy 2015-01-23 14:15:46 -07:00
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: Remove unused function bsg_goose_queue() 2012-12-06 14:33:02 +01:00
bsg.c block: Simplify bsg complete all 2015-02-04 09:57:52 -07:00
cfq-iosched.c block: rename bio bi_rw to bi_opf 2016-08-07 14:41:02 -06:00
cmdline-parser.c block: remove unrelated header files and export symbol 2014-01-21 20:18:26 -08:00
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 blkcg: make CONFIG_BLK_CGROUP bool 2012-03-06 21:27:21 +01:00
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