Jens Axboe d7cf931dd9 Revert "blk-flush: Queue through IO scheduler when flush not required" ... This reverts commit 1b2ff19e6a. Jan writes: -- Thanks for report! After some investigation I found out we allocate elevator specific data in __get_request() only for non-flush requests. And this is actually required since the flush machinery uses the space in struct request for something else. Doh. So my patch is just wrong and not easy to fix since at the time __get_request() is called we are not sure whether the flush machinery will be used in the end. Jens, please revert 1b2ff19e6a. Thanks! I'm somewhat surprised that you can reliably hit the race where flushing gets disabled for the device just while the request is in flight. But I guess during boot it makes some sense. -- So let's just revert it, we can fix the queue run manually after the fact. This race is rare enough that it didn't trigger in testing, it requires the specific disable-while-in-flight scenario to trigger.		2015-11-25 11:02:02 -07:00
..
partitions	mac: validate mac_partition is within sector	2015-11-20 08:49:28 -07:00
Kconfig	block: Add T10 Protection Information functions	2014-09-27 09:14:59 -06:00
Kconfig.iosched	blkcg: make CONFIG_BLK_CGROUP bool	2012-03-06 21:27:21 +01:00
Makefile	block: Add T10 Protection Information functions	2014-09-27 09:14:59 -06:00
bio-integrity.c	block: blk_flush_integrity() for bio-based drivers	2015-10-21 14:43:44 -06:00
bio.c	bio: use offset_in_page macro	2015-11-24 15:24:25 -07:00
blk-cgroup.c	Merge branch 'for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2015-11-05 14:51:32 -08:00
blk-core.c	block: do not initialise globals to 0 or NULL	2015-11-24 15:24:25 -07:00
blk-exec.c	block: move PM request support to IDE	2015-05-05 13:40:42 -06:00
blk-flush.c	Revert "blk-flush: Queue through IO scheduler when flush not required"	2015-11-25 11:02:02 -07:00
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-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: re-add discard_granularity and alignment checks	2015-10-28 09:12:58 +09:00
blk-map.c	block: Copy a user iovec if it includes gaps	2015-09-11 09:03:50 -06:00
blk-merge.c	blk-merge: warn if figured out segment number is bigger than nr_phys_segments	2015-11-23 20:16:55 -07:00
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 inserting requests before establishing new mapping	2015-09-29 11:32:50 -06:00
blk-mq-sysfs.c	block: add block polling support	2015-11-07 10:40:47 -07:00
blk-mq-tag.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-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: fix calling unplug callbacks with preempt disabled	2015-11-20 20:29:45 -07:00
blk-mq.h	blk-mq: mark __blk_mq_complete_request() static	2015-11-11 09:36:56 -07:00
blk-settings.c	Merge branch 'for-4.3/core' of git://git.kernel.dk/linux-block	2015-09-02 13:10:25 -07:00
blk-softirq.c	block: fix regression with block enabled tagging	2014-04-09 21:54:06 -06:00
blk-sysfs.c	block: add block polling support	2015-11-07 10:40:47 -07:00
blk-tag.c	block: support different tag allocation policy	2015-01-23 14:15:46 -07:00
blk-throttle.c	cgroup: replace cgroup_on_dfl() tests in controllers with cgroup_subsys_on_dfl()	2015-09-18 11:56:28 -04:00
blk-timeout.c	block: clarify blk_add_timer() use case for blk-mq	2015-11-24 15:58:53 -07:00
blk.h	block: protect rw_page against device teardown	2015-11-19 13:47:10 -08:00
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	cgroup: replace cgroup_on_dfl() tests in controllers with cgroup_subsys_on_dfl()	2015-09-18 11:56:28 -04:00
cmdline-parser.c	block: remove unrelated header files and export symbol	2014-01-21 20:18:26 -08:00
compat_ioctl.c	block, bdi: an active gendisk always has a request_queue associated with it	2014-09-08 10:00:35 -06:00
deadline-iosched.c	block: Stop abusing csd.list for fifo_time	2014-02-24 14:46:32 -08:00
elevator.c	block: check bio_mergeable() early before merging	2015-10-21 15:00:54 -06:00
genhd.c	block: do not initialise statics to 0 or NULL	2015-11-24 15:24:25 -07:00
ioctl.c	block: add an API for Persistent Reservations	2015-10-21 14:46:56 -06:00
ioprio.c	pidns: fix set/getpriority and ioprio_set/get in PRIO_USER mode	2015-11-06 17:50:42 -08:00
noop-iosched.c	elevator: use list_{first,prev,next}_entry	2015-11-16 15:21:48 -07:00
partition-generic.c	block: Inline blk_integrity in struct gendisk	2015-10-21 14:42:42 -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