Keith Busch 3280d66a63 blk-mq: Fix queue usage on failed request allocation ...

blk_mq_get_request() does not release the callers queue usage counter
when allocation fails. The caller still needs to account for its own
queue usage when it is unable to allocate a request.

Fixes: 1ad43c0078 ("blk-mq: don't leak preempt counter/q_usage_counter when allocating rq failed")

Reported-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Tested-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

2017-08-15 07:22:34 -06:00

..

partitions

partitions/ldm: switch to use uuid_t

2017-06-05 16:59:14 +02:00

badblocks.c

block: Add fallthrough markers to switch statements

2017-06-21 11:46:07 -06:00

bfq-cgroup.c

block, bfq: access and cache blkg data only when safe

2017-06-08 09:51:10 -06:00

bfq-iosched.c

bfq: dispatch request to prevent queue stalling after the request completion

2017-07-12 08:32:04 -06:00

bfq-iosched.h

block, bfq: consider also in_service_entity to state whether an entity is active

2017-07-29 15:32:49 -06:00

bfq-wf2q.c

block, bfq: consider also in_service_entity to state whether an entity is active

2017-07-29 15:32:49 -06:00

bio-integrity.c

bio-integrity: only verify integrity on the lowest stacked driver

2017-08-09 20:24:36 -06:00

bio.c

block: call bio_uninit in bio_endio

2017-07-10 12:43:33 -06:00

blk-cgroup.c

block: Avoid that blk_exit_rl() triggers a use-after-free

2017-06-01 13:07:55 -06:00

blk-core.c

block: disable runtime-pm for blk-mq

2017-07-24 08:46:40 -06:00

blk-exec.c

block: introduce new block status code type

2017-06-09 09:27:32 -06:00

blk-flush.c

block: Check locking assumptions at runtime

2017-06-20 19:27:14 -06:00

blk-integrity.c

block: switch bios to blk_status_t

2017-06-09 09:27:32 -06:00

blk-ioc.c

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

2017-03-03 10:53:35 -08:00

blk-lib.c

block: Fix __blkdev_issue_zeroout loop

2017-07-06 09:43:20 -06:00

blk-map.c

blk-map: call blk_queue_bounce from blk_rq_append_bio

2017-06-27 12:13:21 -06:00

blk-merge.c

block: add support for write hints in a bio

2017-06-27 12:05:27 -06:00

blk-mq-cpumap.c

blk-mq: map queues to all present CPUs

2017-07-24 10:01:31 -06:00

blk-mq-debugfs.c

blk-mq: expose write hints through debugfs

2017-06-27 12:05:31 -06:00

blk-mq-debugfs.h

mq-deadline: add debugfs attributes

2017-05-04 08:25:17 -06:00

blk-mq-pci.c

blk-mq-pci: Fix two spelling mistakes

2017-03-29 11:09:51 -06:00

blk-mq-sched.c

blk-mq-sched: fix performance regression of mq-deadline

2017-07-03 16:54:09 -06:00

blk-mq-sched.h

Merge commit '8e8320c9315c' into for-4.13/block

2017-06-22 21:55:24 -06:00

blk-mq-sysfs.c

blk-mq: untangle debugfs and sysfs

2017-05-04 08:24:13 -06:00

blk-mq-tag.c

blk-mq: add shallow depth option for blk_mq_get_tag()

2017-04-14 14:06:54 -06:00

blk-mq-tag.h

blk-mq-sched: Allocate sched reserved tags as specified in the original queue tagset

2017-03-02 08:56:04 -07:00

blk-mq-virtio.c

blk-mq: provide a default queue mapping for virtio device

2017-02-27 20:54:05 +02:00

blk-mq.c

blk-mq: Fix queue usage on failed request allocation

2017-08-15 07:22:34 -06:00

blk-mq.h

Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-07-03 16:50:31 -07:00

blk-settings.c

block: don't bother with bounce limits for make_request drivers

2017-06-27 12:13:45 -06:00

blk-softirq.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/topology.h>

2017-03-02 08:42:26 +01:00

blk-stat.c

blk-stat: don't use this_cpu_ptr() in a preemptable section

2017-05-10 07:40:18 -06:00

blk-stat.h

blk-stat: kill blk_stat_rq_ddir()

2017-04-21 07:56:23 -06:00

blk-sysfs.c

block: Fix a blk_exit_rl() regression

2017-06-14 13:27:50 -06:00

blk-tag.c

block: Check locking assumptions at runtime

2017-06-20 19:27:14 -06:00

blk-throttle.c

blk-throttle: set default latency baseline for harddisk

2017-06-07 09:09:32 -06:00

blk-timeout.c

block: Check locking assumptions at runtime

2017-06-20 19:27:14 -06:00

blk-wbt.c

sched/wait: Disambiguate wq_entry->task_list and wq_head->task_list naming

2017-06-20 12:19:14 +02:00

blk-wbt.h

block: Make writeback throttling defaults consistent for SQ devices

2017-04-19 08:49:03 -06:00

blk-zoned.c

block: Rename blk_queue_zone_size and bdev_zone_size

2017-01-12 07:58:32 -07:00

blk.h

bio-integrity: stop abusing bi_end_io

2017-07-03 17:00:59 -06:00

bounce.c

block: remove the queue_bounce_pfn helper

2017-06-27 12:13:45 -06:00

bsg-lib.c

block: introduce new block status code type

2017-06-09 09:27:32 -06:00

bsg.c

block: Make most scsi_req_init() calls implicit

2017-06-20 19:27:14 -06:00

cfq-iosched.c

Merge tag 'v4.12-rc5' into for-4.13/block

2017-06-12 08:30:13 -06:00

cmdline-parser.c

block: remove unrelated header files and export symbol

2014-01-21 20:18:26 -08:00

compat_ioctl.c

compat_hdio_ioctl: get rid of set_fs()

2017-06-29 18:17:52 -04:00

deadline-iosched.c

block: enumify ELEVATOR_*_MERGE

2017-02-08 13:43:06 -07:00

elevator.c

block: Add fallthrough markers to switch statements

2017-06-21 11:46:07 -06:00

genhd.c

block: Constify disk_type

2017-06-20 19:27:14 -06:00

ioctl.c

block: remove the discard_zeroes_data flag

2017-04-08 11:25:38 -06:00

ioprio.c

block: Add fallthrough markers to switch statements

2017-06-21 11:46:07 -06:00

Kconfig

Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

2017-05-12 15:43:10 -07:00

Kconfig.iosched

block, bfq: add full hierarchical scheduling and cgroups support

2017-04-19 08:30:26 -06:00

kyber-iosched.c

Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-07-03 13:08:04 -07:00

Makefile

block, bfq: split bfq-iosched.c into multiple source files

2017-04-19 08:48:24 -06:00

mq-deadline.c

mq-deadline: add debugfs attributes

2017-05-04 08:25:17 -06:00

noop-iosched.c

block: move existing elevator ops to union

2017-01-17 10:03:33 -07:00

opal_proto.h

block/sed-opal: allocate struct opal_dev dynamically

2017-02-17 12:41:47 -07:00

partition-generic.c

block: fix an error code in add_partition()

2017-05-23 08:41:59 -06:00

scsi_ioctl.c

block: Change argument type of scsi_req_init()

2017-06-20 19:27:14 -06:00

sed-opal.c

block: sed-opal: Tone down all the pr_* to debugs

2017-04-07 14:24:16 -06:00

t10-pi.c

t10-pi: Move opencoded contants to common header

2017-07-03 16:56:25 -06:00