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18741986a4
linux/block
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Christoph Hellwig 18741986a4 blk-mq: rework flush sequencing logic 
Witch to using a preallocated flush_rq for blk-mq similar to what's done
with the old request path.  This allows us to set up the request properly
with a tag from the actually allowed range and ->rq_disk as needed by
some drivers.  To make life easier we also switch to dynamic allocation
of ->flush_rq for the old path.

This effectively reverts most of

    "blk-mq: fix for flush deadlock"

and

    "blk-mq: Don't reserve a tag for flush request"

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-02-10 09:29:00 -07:00
..
partitions block/partitions/efi.c: fix bound check 2013-11-21 16:42:27 -08:00
blk-cgroup.c Merge branch 'for-3.12/core' of git://git.kernel.dk/linux-block 2013-09-22 15:00:11 -07:00
blk-cgroup.h Update of blkg_stat and blkg_rwstat may happen in bh context. 2013-11-20 15:33:04 -07:00
blk-core.c blk-mq: rework flush sequencing logic 2014-02-10 09:29:00 -07:00
blk-exec.c blk-mq: support at_head inserations for blk_execute_rq 2014-02-07 11:58:54 -07:00
blk-flush.c blk-mq: rework flush sequencing logic 2014-02-10 09:29:00 -07:00
blk-integrity.c bio-integrity: Convert to bvec_iter 2013-11-23 22:33:50 -08:00
blk-ioc.c block: cleanup removing dependency on bootmem headers 2013-11-08 19:43:48 -07:00
blk-iopoll.c block: Replace __get_cpu_var uses 2013-11-08 08:59:58 -07:00
blk-lib.c block: Abstract out bvec iterator 2013-11-23 22:33:47 -08:00
blk-map.c block: Abstract out bvec iterator 2013-11-23 22:33:47 -08:00
blk-merge.c block: Explicitly handle discard/write same segments 2014-02-07 13:54:08 -07:00
blk-mq-cpu.c block/blk-mq-cpu.c: use hotcpu_notifier() 2014-01-28 09:52:01 -07:00
blk-mq-cpumap.c blk-mq: new multi-queue block IO queueing mechanism 2013-10-25 11:56:00 +01:00
blk-mq-sysfs.c block: fix memory leaks on unplugging block device 2013-12-06 09:18:02 -07:00
blk-mq-tag.c blk-mq: new multi-queue block IO queueing mechanism 2013-10-25 11:56:00 +01:00
blk-mq-tag.h blk-mq: new multi-queue block IO queueing mechanism 2013-10-25 11:56:00 +01:00
blk-mq.c blk-mq: rework flush sequencing logic 2014-02-10 09:29:00 -07:00
blk-mq.h blk-mq: rework flush sequencing logic 2014-02-10 09:29:00 -07:00
blk-settings.c bcache/md: Use raid stripe size 2014-01-08 13:05:09 -08:00
blk-softirq.c kernel: remove CONFIG_USE_GENERIC_SMP_HELPERS 2013-11-15 09:32:22 +09:00
blk-sysfs.c blk-mq: rework flush sequencing logic 2014-02-10 09:29:00 -07:00
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 Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block 2014-01-30 11:19:05 -08:00
blk-timeout.c blk-mq: rework I/O completions 2014-02-10 09:27:31 -07:00
blk.h block: __elv_next_request() shouldn't call into the elevator if bypassing 2014-01-30 12:57:25 -07:00
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 cgroup: replace cftype->read_seq_string() with cftype->seq_show() 2013-12-05 12:28:04 -05:00
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: Convert kmalloc_node(...GFP_ZERO...) to kzalloc_node(...) 2013-09-11 13:22:03 -06:00
elevator.c block: Abstract out bvec iterator 2013-11-23 22:33:47 -08:00
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
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 blk-mq: new multi-queue block IO queueing mechanism 2013-10-25 11:56:00 +01:00
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