Ming Lei 2434af79c8 blk-mq: Revert "blk-mq: reimplement blk_mq_hw_queue_mapped" ... This reverts commit 127276c6ce. When all CPUs of one hw queue become offline, there still may have IOs not completed from this hctx. But blk_mq_hw_queue_mapped() is called in blk_mq_queue_tag_busy_iter(), which is used for iterating request in timeout handler, timeout event will be missed on the inactive hctx, then request may never be completed. Also the replementation of blk_mq_hw_queue_mapped() doesn't match the helper's name any more, and it should have been named as blk_mq_hw_queue_active(). Even other callers need further verification about this reimplemenation. So revert this patch now, and we can improve hw queue activate/inactivate event after adequent researching and test. Cc: Stefan Haberland <sth@linux.vnet.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Christoph Hellwig <hch@lst.de> Reported-by: Jens Axboe <axboe@kernel.dk> Fixes: 127276c6ce ("blk-mq: reimplement blk_mq_hw_queue_mapped") Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>		2018-04-11 07:59:15 -06:00
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partitions	…
Kconfig	…
Kconfig.iosched	…
Makefile	…
badblocks.c	…
bfq-cgroup.c	…
bfq-iosched.c	…
bfq-iosched.h	…
bfq-wf2q.c	…
bio-integrity.c	…
bio.c	…
blk-cgroup.c	…
blk-core.c	blk-mq: Avoid that submitting a bio concurrently with device removal triggers a crash	2018-04-10 17:46:40 -06:00
blk-exec.c	…
blk-flush.c	…
blk-integrity.c	…
blk-ioc.c	…
blk-lib.c	…
blk-map.c	…
blk-merge.c	…
blk-mq-cpumap.c	blk-mq: don't keep offline CPUs mapped to hctx 0	2018-04-10 08:38:46 -06:00
blk-mq-debugfs.c	blk-mq: remove blk_mq_delay_queue()	2018-04-10 08:38:46 -06:00
blk-mq-debugfs.h	…
blk-mq-pci.c	…
blk-mq-rdma.c	…
blk-mq-sched.c	…
blk-mq-sched.h	…
blk-mq-sysfs.c	…
blk-mq-tag.c	…
blk-mq-tag.h	…
blk-mq-virtio.c	…
blk-mq.c	blk-mq: remove code for dealing with remapping queue	2018-04-10 08:38:46 -06:00
blk-mq.h	blk-mq: Revert "blk-mq: reimplement blk_mq_hw_queue_mapped"	2018-04-11 07:59:15 -06:00
blk-settings.c	…
blk-softirq.c	…
blk-stat.c	…
blk-stat.h	…
blk-sysfs.c	…
blk-tag.c	…
blk-throttle.c	…
blk-timeout.c	…
blk-wbt.c	…
blk-wbt.h	…
blk-zoned.c	…
blk.h	…
bounce.c	…
bsg-lib.c	…
bsg.c	…
cfq-iosched.c	…
cmdline-parser.c	…
compat_ioctl.c	…
deadline-iosched.c	…
elevator.c	…
genhd.c	…
ioctl.c	…
ioprio.c	…
kyber-iosched.c	…
mq-deadline.c	…
noop-iosched.c	…
opal_proto.h	…
partition-generic.c	…
scsi_ioctl.c	…
sed-opal.c	…
t10-pi.c	…