Bart Van Assche b32232073e blk-mq: fix hang in bt_get() ...

Avoid that if there are fewer hardware queues than CPU threads that
bt_get() can hang. The symptoms of the hang were as follows:

* All tags allocated for a particular hardware queue.
* (nr_tags) pending commands for that hardware queue.
* No pending commands for the software queues associated with that
  hardware queue.

Signed-off-by: Jens Axboe <axboe@fb.com>

2014-12-08 08:46:34 -07:00

..

partitions

block: Replace strnicmp with strncasecmp

2014-09-27 16:48:55 -06:00

bio-integrity.c

bio-integrity: remove the needless fail handle of bip_slab creating

2014-10-13 15:09:38 -06:00

bio.c

blk: introduce generic io stat accounting help function

2014-11-24 08:04:44 -07:00

blk-cgroup.c

blkcg: remove blkcg->id

2014-09-08 09:55:37 -06:00

blk-cgroup.h

blkcg: remove blkcg->id

2014-09-08 09:55:37 -06:00

blk-core.c

Merge branch 'for-3.18/core' of git://git.kernel.dk/linux-block

2014-10-18 11:53:51 -07:00

blk-exec.c

blk-mq: avoid infinite recursion with the FUA flag

2014-09-22 11:55:19 -06:00

blk-flush.c

blk-mq: support per-distpatch_queue flush machinery

2014-09-25 15:22:45 -06:00

blk-integrity.c

block: Don't merge requests if integrity flags differ

2014-09-27 09:14:57 -06:00

blk-ioc.c

…

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/blk-lib.c: make __blkdev_issue_zeroout static

2014-05-26 17:39:09 -06:00

blk-map.c

block: remove struct request buffer member

2014-04-15 14:03:02 -06:00

blk-merge.c

blk-merge: don't compute bi_phys_segments from bi_vcnt for cloned bio

2014-10-09 13:11:44 -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: use 'nr_cpu_ids' as highest CPU ID count for hwq <-> cpu map

2014-11-24 15:02:42 -07:00

blk-mq-sysfs.c

blk-mq, percpu_ref: start q->mq_usage_counter in atomic mode

2014-09-24 13:37:21 -04:00

blk-mq-tag.c

blk-mq: fix hang in bt_get()

2014-12-08 08:46:34 -07:00

blk-mq-tag.h

blk-mq: bitmap tag: fix races on shared ::wake_index fields

2014-06-17 22:12:35 -07:00

blk-mq.c

blk-mq: move the kdump check to blk_mq_alloc_tag_set

2014-11-30 18:35:39 -07:00

blk-mq.h

block: introduce blk_init_flush and its pair

2014-09-25 15:22:35 -06:00

blk-settings.c

block: remove artifical max_hw_sectors cap

2014-10-21 14:02:54 -06:00

blk-softirq.c

block: fix regression with block enabled tagging

2014-04-09 21:54:06 -06:00

blk-sysfs.c

Merge branch 'for-3.18/core' of git://git.kernel.dk/linux-block

2014-10-18 11:53:51 -07:00

blk-tag.c

block: don't assume last put of shared tags is for the host

2014-07-08 12:25:28 +02:00

blk-throttle.c

cgroup: remove sane_behavior support on non-default hierarchies

2014-07-09 10:08:08 -04:00

blk-timeout.c

block: fix blk_abort_request on blk-mq

2014-09-22 12:00:08 -06:00

blk.h

blk-mq: support per-distpatch_queue flush machinery

2014-09-25 15:22:45 -06:00

bounce.c

mm: convert some level-less printks to pr_*

2014-06-06 16:08:18 -07:00

bsg-lib.c

…

bsg.c

bsg: fix potential error pointer dereference

2014-08-29 08:34:14 -06:00

cfq-iosched.c

Merge branch 'for-linus' into for-3.18/core

2014-09-11 09:31:18 -06:00

cmdline-parser.c

…

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

…

elevator.c

Revert "block: add __init to elv_register"

2014-06-22 16:34:11 -06:00

genhd.c

genhd: check for int overflow in disk_expand_part_tbl()

2014-11-19 13:09:07 -07:00

ioctl.c

block, bdi: an active gendisk always has a request_queue associated with it

2014-09-08 10:00:35 -06:00

ioprio.c

block: move ioprio.c from fs/ to block/

2014-05-19 11:02:18 -06:00

Kconfig

block: Add T10 Protection Information functions

2014-09-27 09:14:59 -06:00

Kconfig.iosched

…

Makefile

block: Add T10 Protection Information functions

2014-09-27 09:14:59 -06:00

noop-iosched.c

…

partition-generic.c

block: Fix dev_t minor allocation lifetime

2014-09-03 15:01:02 -06:00

scsi_ioctl.c

Merge branch 'for-linus' into for-3.18/core

2014-09-11 09:31:18 -06:00

t10-pi.c

block: Add T10 Protection Information functions

2014-09-27 09:14:59 -06:00