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86d7331299
linux/block
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Zhang Wensheng 86d7331299 block: update io_ticks when io hang 
When the inflight IOs are slow and no new IOs are issued, we expect
iostat could manifest the IO hang problem. However after
commit 5b18b5a737 ("block: delete part_round_stats and switch to less
precise counting"), io_tick and time_in_queue will not be updated until
the end of IO, and the avgqu-sz and %util columns of iostat will be zero.

Because it has using stat.nsecs accumulation to express time_in_queue
which is not suitable to change, and may %util will express the status
better when io hang occur. To fix io_ticks, we use update_io_ticks and
inflight to update io_ticks when diskstats_show and part_stat_show
been called.

Fixes: 5b18b5a737 ("block: delete part_round_stats and switch to less precise counting")
Signed-off-by: Zhang Wensheng <zhangwensheng5@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220217064247.4041435-1-zhangwensheng5@huawei.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-02-22 06:59:09 -07:00
..
partitions block: remove genhd.h 2022-02-02 07:49:59 -07:00
badblocks.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
bdev.c block: deprecate autoloading based on dev_t 2022-02-02 07:49:58 -07:00
bfq-cgroup.c block, bfq: don't move oom_bfqq 2022-02-18 06:13:00 -07:00
bfq-iosched.c block, bfq: cleanup bfq_bfqq_to_bfqg() 2022-02-18 06:13:00 -07:00
bfq-iosched.h block, bfq: cleanup bfq_bfqq_to_bfqg() 2022-02-18 06:13:00 -07:00
bfq-wf2q.c block, bfq: cleanup bfq_bfqq_to_bfqg() 2022-02-18 06:13:00 -07:00
bio-integrity.c block: clone crypto and integrity data in __bio_clone_fast 2022-02-04 07:43:18 -07:00
bio.c block: partition include/linux/blk-cgroup.h 2022-02-11 10:02:41 -07:00
blk-cgroup-rwstat.c blk-cgroup: Fix the recursive blkg rwstat 2021-03-05 11:32:15 -07:00
blk-cgroup-rwstat.h block: partition include/linux/blk-cgroup.h 2022-02-11 10:02:41 -07:00
blk-cgroup.c blk-cgroup: set blkg iostat after percpu stat aggregation 2022-02-15 14:13:12 -07:00
blk-cgroup.h block: partition include/linux/blk-cgroup.h 2022-02-11 10:02:41 -07:00
blk-core.c block: merge submit_bio_checks() into submit_bio_noacct 2022-02-16 19:42:28 -07:00
blk-crypto-fallback.c block: partition include/linux/blk-cgroup.h 2022-02-11 10:02:41 -07:00
blk-crypto-internal.h block: move struct request to blk-mq.h 2021-10-18 06:17:02 -06:00
blk-crypto-profile.c blk-crypto: remove blk_crypto_unregister() 2021-11-29 06:38:51 -07:00
blk-crypto.c block: clone crypto and integrity data in __bio_clone_fast 2022-02-04 07:43:18 -07:00
blk-flush.c block: pass a block_device and opf to bio_init 2022-02-02 07:49:59 -07:00
blk-ia-ranges.c block: fix memory leak in disk_register_independent_access_ranges 2022-01-23 09:13:09 -07:00
blk-integrity.c blk-crypto: remove blk_crypto_unregister() 2021-11-29 06:38:51 -07:00
blk-ioc.c block: drop needless assignment in set_task_ioprio() 2021-12-23 07:10:07 -07:00
blk-iocost.c block: partition include/linux/blk-cgroup.h 2022-02-11 10:02:41 -07:00
blk-iolatency.c block: partition include/linux/blk-cgroup.h 2022-02-11 10:02:41 -07:00
blk-ioprio.c block: partition include/linux/blk-cgroup.h 2022-02-11 10:02:41 -07:00
blk-ioprio.h block: Introduce the ioprio rq-qos policy 2021-06-21 15:03:40 -06:00
blk-lib.c blk-lib: don't check bdev_get_queue() NULL check 2022-02-15 07:51:46 -07:00
blk-map.c Merge branch 'akpm' (patches from Andrew) 2021-09-03 10:08:28 -07:00
blk-merge.c block: throttle split bio in case of iops limit 2022-02-16 19:42:28 -07:00
blk-mq-cpumap.c blk-mq: remove the calling of local_memory_node() 2020-10-20 07:08:17 -06:00
blk-mq-debugfs-zoned.c
blk-mq-debugfs.c blk-mq: check q->poll_stat in queue_poll_stat_show 2021-12-02 08:20:49 -07:00
blk-mq-debugfs.h
blk-mq-pci.c
blk-mq-rdma.c
blk-mq-sched.c blk-mq: run dispatch lock once in case of issuing from list 2021-12-03 14:51:29 -07:00
blk-mq-sched.h block: move blk_mq_sched_assign_ioc to blk-ioc.c 2021-11-29 06:41:29 -07:00
blk-mq-sysfs.c blk-mq: move srcu from blk_mq_hw_ctx to request_queue 2021-12-03 14:51:29 -07:00
blk-mq-tag.c sbitmap: Delete old sbitmap_queue_get_shallow() 2022-02-08 06:55:49 -07:00
blk-mq-tag.h blk-mq: Delete busy_iter_fn 2021-12-06 13:18:47 -07:00
blk-mq-virtio.c
blk-mq.c blk-mq: avoid extending delays of active hctx from blk_mq_delay_run_hw_queues 2022-02-16 19:46:20 -07:00
blk-mq.h blk-mq: don't run might_sleep() if the operation needn't blocking 2021-12-06 09:40:42 -07:00
blk-pm.c scsi: block: pm: Always set request queue runtime active in blk_post_runtime_resume() 2021-12-22 23:38:29 -05:00
blk-pm.h block: Remove unused blk_pm_*() function definitions 2021-02-22 06:33:48 -07:00
blk-rq-qos.c rq-qos: fix missed wake-ups in rq_qos_throttle try two 2021-06-08 15:12:57 -06:00
blk-rq-qos.h block: only mark bio as tracked if it really is tracked 2021-10-18 08:50:47 -06:00
blk-settings.c block: Fix partition check for host-aware zoned block devices 2021-10-27 06:58:01 -06:00
blk-stat.c block: make queue stat accounting a reference 2021-12-14 17:23:05 -07:00
blk-stat.h block: make queue stat accounting a reference 2021-12-14 17:23:05 -07:00
blk-sysfs.c block: partition include/linux/blk-cgroup.h 2022-02-11 10:02:41 -07:00
blk-throttle.c block: revert 4f1e9630af ("blk-throtl: optimize IOPS throttle for large IO scenarios") 2022-02-16 19:42:28 -07:00
blk-throttle.h block: revert 4f1e9630af ("blk-throtl: optimize IOPS throttle for large IO scenarios") 2022-02-16 19:42:28 -07:00
blk-timeout.c block: blk-timeout: delete duplicated word 2020-07-31 16:29:47 -06:00
blk-wbt.c blk-wbt: prevent NULL pointer dereference in wb_timer_fn 2021-10-19 06:13:41 -06:00
blk-wbt.h blk-wbt: introduce a new disable state to prevent false positive by rwb_enabled() 2021-06-21 15:03:41 -06:00
blk-zoned.c block: pass a block_device and opf to bio_init 2022-02-02 07:49:59 -07:00
blk.h block: don't check bio in blk_throtl_dispatch_work_fn 2022-02-16 19:42:28 -07:00
bounce.c block: partition include/linux/blk-cgroup.h 2022-02-11 10:02:41 -07:00
bsg-lib.c block: remove the gendisk argument to blk_execute_rq 2021-11-29 06:41:29 -07:00
bsg.c scsi: bsg: Fix device unregistration 2021-09-14 00:22:15 -04:00
disk-events.c block: remove genhd.h 2022-02-02 07:49:59 -07:00
elevator.c block: partition include/linux/blk-cgroup.h 2022-02-11 10:02:41 -07:00
elevator.h block: move elevator.h to block/ 2021-10-18 06:17:01 -06:00
fops.c block: pass a block_device and opf to bio_init 2022-02-02 07:49:59 -07:00
genhd.c block: update io_ticks when io hang 2022-02-22 06:59:09 -07:00
holder.c block: remove genhd.h 2022-02-02 07:49:59 -07:00
ioctl.c block: merge disk_scan_partitions and blkdev_reread_part 2021-11-29 06:35:21 -07:00
ioprio.c for-5.17/block-2022-01-11 2022-01-12 10:26:52 -08:00
Kconfig blk-mq: make the blk-mq stacking code optional 2022-02-16 19:39:09 -07:00
Kconfig.iosched block: only build the icq tracking code when needed 2021-12-16 10:59:02 -07:00
kyber-iosched.c block: make queue stat accounting a reference 2021-12-14 17:23:05 -07:00
Makefile block: remove blk-exec.c 2021-11-29 06:34:50 -07:00
mq-deadline.c block: fix async_depth sysfs interface for mq-deadline 2022-01-20 10:54:02 -07:00
opal_proto.h
sed-opal.c block: remove genhd.h 2022-02-02 07:49:59 -07:00
t10-pi.c block: move integrity handling out of <linux/blkdev.h> 2021-10-18 06:17:02 -06:00