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Jens Axboe 93efe9817e blk-mq: include errors in did_work calculation 
Currently we return true in blk_mq_dispatch_rq_list() if we queued IO
successfully, but we really want to return whether or not the we made
progress. Progress includes if we got an error return.  If we don't,
this can lead to a hang in blk_mq_sched_dispatch_requests() when a
driver is draining IO by returning BLK_MQ_QUEUE_ERROR instead of
manually ending the IO in error and return BLK_MQ_QUEUE_OK.

Tested-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-03-24 15:42:47 -06:00
..
partitions partitions/efi: Fix integer overflow in GPT size calculation 2017-01-17 09:02:31 -07:00
badblocks.c badblocks: badblocks_set/clear update unacked_exist 2016-10-21 15:45:47 -06:00
bio-integrity.c block: remove bio_is_rw 2016-10-28 08:45:17 -06:00
bio.c blk: Ensure users for current->bio_list can see the full list. 2017-03-11 15:31:37 -07:00
blk-cgroup.c sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
blk-core.c blk: Ensure users for current->bio_list can see the full list. 2017-03-11 15:31:37 -07:00
blk-exec.c block: introduce blk_rq_is_passthrough 2017-01-31 14:00:34 -07:00
blk-flush.c block: don't defer flushes on blk-mq + scheduling 2017-02-17 12:35:47 -07:00
blk-integrity.c block: Use pointer to backing_dev_info from request_queue 2017-02-02 08:20:48 -07:00
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: don't try Write Same from __blkdev_issue_zeroout 2017-02-06 09:34:46 -07:00
blk-map.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h> 2017-03-02 08:42:36 +01:00
blk-merge.c block: optionally merge discontiguous discard bios into a single request 2017-02-08 13:43:08 -07:00
blk-mq-cpumap.c blk-mq: export blk_mq_map_queues 2016-11-08 17:30:00 -05:00
blk-mq-debugfs.c block: use same block debugfs directory for blk-mq and blktrace 2017-02-02 10:20:16 -07:00
blk-mq-pci.c blk_mq: linux/blk-mq.h does not include all the headers it depends on 2016-09-19 08:21:51 -06:00
blk-mq-sched.c blk-mq: move update of tags->rqs to __blk_mq_alloc_request() 2017-03-02 08:56:04 -07:00
blk-mq-sched.h blk-mq-sched: separate mark hctx and queue restart operations 2017-02-23 11:55:47 -07:00
blk-mq-sysfs.c blk-mq: free hctx->cpumask in release handler of hctx's kobject 2017-03-08 09:56:12 -07:00
blk-mq-tag.c blk-mq: Fix tagset reinit in the presence of cpu hot-unplug 2017-03-13 08:14:23 -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: include errors in did_work calculation 2017-03-24 15:42:47 -06:00
blk-mq.h blk-mq: make lifetime consitent between q/ctx and its kobject 2017-03-08 09:56:12 -07:00
blk-settings.c block: optionally merge discontiguous discard bios into a single request 2017-02-08 13:43:08 -07:00
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: fix blk_stat_sum() if all samples are batched 2017-03-16 09:46:14 -06:00
blk-stat.h block: add scalable completion tracking of requests 2016-11-10 13:53:26 -07:00
blk-sysfs.c block: don't call ioc_exit_icq() with the queue lock held for blk-mq 2017-03-02 13:59:08 -07:00
blk-tag.c blk-mq-sched: add framework for MQ capable IO schedulers 2017-01-17 10:04:20 -07:00
blk-throttle.c scripts/spelling.txt: add "embeded" pattern and fix typo instances 2017-02-27 18:43:47 -08:00
blk-timeout.c block: remove REQ_NO_TIMEOUT flag 2015-12-22 09:38:34 -07:00
blk-wbt.c block: Use pointer to backing_dev_info from request_queue 2017-02-02 08:20:48 -07:00
blk-wbt.h blk-wbt: allow wbt to be enabled always through sysfs 2016-11-28 10:27:03 -07:00
blk-zoned.c block: Rename blk_queue_zone_size and bdev_zone_size 2017-01-12 07:58:32 -07:00
blk.h block: optionally merge discontiguous discard bios into a single request 2017-02-08 13:43:08 -07:00
bounce.c Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2015-09-19 18:57:09 -07:00
bsg-lib.c block: split scsi_request out of struct request 2017-01-27 15:08:35 -07:00
bsg.c lib/vsprintf.c: remove %Z support 2017-02-27 18:43:47 -08:00
cfq-iosched.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/clock.h> 2017-03-02 08:42:27 +01:00
cmdline-parser.c block: remove unrelated header files and export symbol 2014-01-21 20:18:26 -08:00
compat_ioctl.c block: Get rid of blk_get_backing_dev_info() 2017-02-02 08:21:32 -07:00
deadline-iosched.c block: enumify ELEVATOR_*_MERGE 2017-02-08 13:43:06 -07:00
elevator.c block: don't call ioc_exit_icq() with the queue lock held for blk-mq 2017-03-02 13:59:08 -07:00
genhd.c Revert "scsi, block: fix duplicate bdi name registration crashes" 2017-03-08 10:55:17 -07:00
ioctl.c block: Get rid of blk_get_backing_dev_info() 2017-02-02 08:21:32 -07:00
ioprio.c sched/headers: Prepare to move the task_lock()/unlock() APIs to <linux/sched/task.h> 2017-03-02 08:42:38 +01:00
Kconfig virtio, vhost: optimizations, fixes 2017-03-02 13:53:13 -08:00
Kconfig.iosched block: get rid of blk-mq default scheduler choice Kconfig entries 2017-02-22 13:19:45 -07:00
Makefile virtio, vhost: optimizations, fixes 2017-03-02 13:53:13 -08:00
mq-deadline.c block: enumify ELEVATOR_*_MERGE 2017-02-08 13:43:06 -07:00
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: Rename blk_queue_zone_size and bdev_zone_size 2017-01-12 07:58:32 -07:00
scsi_ioctl.c block: fold cmd_type into the REQ_OP_ space 2017-01-31 14:00:44 -07:00
sed-opal.c block/sed: Fix opal user range check and unused variables 2017-03-08 09:56:12 -07:00
t10-pi.c block: Consolidate static integrity profile properties 2015-10-21 14:42:38 -06:00