Yang Shi d5869fdc18 block: introduce block_rq_error tracepoint ... Currently, rasdaemon uses the existing tracepoint block_rq_complete and filters out non-error cases in order to capture block disk errors. But there are a few problems with this approach: 1. Even kernel trace filter could do the filtering work, there is still some overhead after we enable this tracepoint. 2. The filter is merely based on errno, which does not align with kernel logic to check the errors for print_req_error(). 3. block_rq_complete only provides dev major and minor to identify the block device, it is not convenient to use in user-space. So introduce a new tracepoint block_rq_error just for the error case. With this patch, rasdaemon could switch to block_rq_error. Since the new tracepoint has the similar implementation with block_rq_complete, so move the existing code from TRACE_EVENT block_rq_complete() into new event class block_rq_completion(). Then add event for block_rq_complete and block_rq_err respectively from the newly created event class per the suggestion from Chaitanya Kulkarni. Cc: Jens Axboe <axboe@kernel.dk> Cc: Christoph Hellwig <hch@infradead.org> Reviewed-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: Chaitanya Kulkarni <kch@nvidia.com> Signed-off-by: Yang Shi <shy828301@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20220210225222.260069-1-shy828301@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>		2022-02-11 10:00:16 -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: fix UAF problem in bfqg_stats_init()	2021-10-19 15:18:30 -06:00
bfq-iosched.c	block: simplify ioc_lookup_icq	2021-11-29 06:41:29 -07:00
bfq-iosched.h	bfq: Provide helper to generate bfqq name	2021-11-29 06:38:52 -07:00
bfq-wf2q.c	block: Introduce IOPRIO_NR_LEVELS	2021-08-18 07:21:12 -06:00
bio-integrity.c	block: clone crypto and integrity data in __bio_clone_fast	2022-02-04 07:43:18 -07:00
bio.c	block: pass a block_device to bio_clone_fast	2022-02-04 07:43:18 -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	blk-cgroup: separate out blkg_rwstat under CONFIG_BLK_CGROUP_RWSTAT	2019-11-07 12:28:13 -07:00
blk-cgroup.c	block: remove genhd.h	2022-02-02 07:49:59 -07:00
blk-core.c	block: return -ENODEV for BLK_STS_OFFLINE	2022-02-03 21:10:00 -07:00
blk-crypto-fallback.c	blk-crypto: rename blk_keyslot_manager to blk_crypto_profile	2021-10-21 10:49:32 -06:00
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	iocost: Fix divide-by-zero on donation from low hweight cgroup	2021-12-14 06:58:15 -07:00
blk-iolatency.c	mm: don't include <linux/blk-cgroup.h> in <linux/backing-dev.h>	2021-10-18 06:17:01 -06:00
blk-ioprio.c	blk-ioprio: don't set bio priority if not needed	2021-11-29 06:38:35 -07:00
blk-ioprio.h	block: Introduce the ioprio rq-qos policy	2021-06-21 15:03:40 -06:00
blk-lib.c	block: pass a block_device and opf to blk_next_bio	2022-02-02 07:49:59 -07:00
blk-map.c	Merge branch 'akpm' (patches from Andrew)	2021-09-03 10:08:28 -07:00
blk-merge.c	block: don't check ->rq_disk in merges	2021-11-29 06:41:29 -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: no need to check return value of debugfs_create functions	2019-06-13 03:00:30 -06:00
blk-mq-pci.c	block: Fix blk_mq_*_map_queues() kernel-doc headers	2019-05-31 15:12:34 -06:00
blk-mq-rdma.c	block: Fix blk_mq_*_map_queues() kernel-doc headers	2019-05-31 15:12:34 -06:00
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: Fix typo in comment	2020-03-17 20:55:21 +01:00
blk-mq.c	block: introduce block_rq_error tracepoint	2022-02-11 10:00:16 -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: cleanup q->srcu	2022-01-17 07:24:45 -07:00
blk-throttle.c	block: don't include blk-mq.h in blk.h	2021-11-29 06:38:44 -07:00
blk-throttle.h	block: move blk-throtl fast path inline	2021-10-18 06:17:03 -06:00
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: pass a block_device and opf to blk_next_bio	2022-02-02 07:49:59 -07:00
bounce.c	block: pass a block_device to bio_clone_fast	2022-02-04 07:43:18 -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: remove the e argument to elevator_exit	2021-11-29 06:38:44 -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: remove genhd.h	2022-02-02 07:49:59 -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	block: deprecate autoloading based on dev_t	2022-02-02 07:49:58 -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	block: sed-opal: Change the check condition for regular session validity	2020-03-12 08:00:10 -06:00
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