Jan Kara 09df6a75ff bfq: Fix warning in bfqq_request_over_limit() ... People are occasionally reporting a warning bfqq_request_over_limit() triggering reporting that BFQ's idea of cgroup hierarchy (and its depth) does not match what generic blkcg code thinks. This can actually happen when bfqq gets moved between BFQ groups while bfqq_request_over_limit() is running. Make sure the code is safe against BFQ queue being moved to a different BFQ group. Fixes: 76f1df88bb ("bfq: Limit number of requests consumed by each cgroup") CC: stable@vger.kernel.org Link: https://lore.kernel.org/all/CAJCQCtTw_2C7ZSz7as5Gvq=OmnDiio=HRkQekqWpKot84sQhFA@mail.gmail.com/ Reported-by: Chris Murphy <lists@colorremedies.com> Reported-by: "yukuai (C)" <yukuai3@huawei.com> Signed-off-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20220407140738.9723-1-jack@suse.cz Signed-off-by: Jens Axboe <axboe@kernel.dk>		2022-04-29 06:45:37 -06:00
..
partitions	block: remove genhd.h	2022-02-02 07:49:59 -07:00
badblocks.c
bdev.c	Merge branch 'akpm' (patches from Andrew)	2022-03-22 16:11:53 -07:00
bfq-cgroup.c	block, bfq: don't move oom_bfqq	2022-02-18 06:13:00 -07:00
bfq-iosched.c	bfq: Fix warning in bfqq_request_over_limit()	2022-04-29 06:45:37 -06:00
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	for-5.18/block-2022-03-18	2022-03-21 16:48:55 -07:00
bio.c	block: fix offset/size check in bio_trim()	2022-04-14 10:15:24 -06:00
blk-cgroup-rwstat.c
blk-cgroup-rwstat.h	block: partition include/linux/blk-cgroup.h	2022-02-11 10:02:41 -07:00
blk-cgroup.c	for-5.18/block-2022-04-01	2022-04-01 16:20:00 -07:00
blk-cgroup.h	block: don't merge across cgroup boundaries if blkcg is enabled	2022-03-14 19:14:37 -06:00
blk-core.c	SCSI misc on 20220324	2022-03-24 19:37:53 -07:00
blk-crypto-fallback.c	block: remove the per-bio/request write hint	2022-03-07 12:45:57 -07:00
blk-crypto-internal.h	blk-crypto: show crypto capabilities in sysfs	2022-02-28 06:40:23 -07:00
blk-crypto-profile.c
blk-crypto-sysfs.c	blk-crypto: show crypto capabilities in sysfs	2022-02-28 06:40:23 -07:00
blk-crypto.c	blk-crypto: show crypto capabilities in sysfs	2022-02-28 06:40:23 -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
blk-integrity.c
blk-ioc.c	block: restore the old set_task_ioprio() behaviour wrt PF_EXITING	2022-03-28 06:34:11 -06:00
blk-iocost.c	iocost: don't reset the inuse weight of under-weighted debtors	2022-04-27 08:41:11 -06:00
blk-iolatency.c	block: fix rq-qos breakage from skipping rq_qos_done_bio()	2022-03-14 14:23:13 -06:00
blk-ioprio.c	block: partition include/linux/blk-cgroup.h	2022-02-11 10:02:41 -07:00
blk-ioprio.h
blk-lib.c	SCSI misc on 20220324	2022-03-24 19:37:53 -07:00
blk-map.c	block-map: add __GFP_ZERO flag for alloc_page in function bio_copy_kern	2022-02-17 07:54:03 -07:00
blk-merge.c	for-5.18/write-streams-2022-03-18	2022-03-26 11:51:46 -07:00
blk-mq-cpumap.c
blk-mq-debugfs-zoned.c
blk-mq-debugfs.c	for-5.18/write-streams-2022-03-18	2022-03-26 11:51:46 -07:00
blk-mq-debugfs.h	blk-mq: manage hctx map via xarray	2022-03-08 19:39:38 -07:00
blk-mq-pci.c
blk-mq-rdma.c
blk-mq-sched.c	block: limit request dispatch loop duration	2022-03-17 20:31:43 -06:00
blk-mq-sched.h
blk-mq-sysfs.c	blk-mq: prepare for implementing hctx table via xarray	2022-03-08 17:57:19 -07:00
blk-mq-tag.c	blk-mq: manage hctx map via xarray	2022-03-08 19:39:38 -07:00
blk-mq-tag.h
blk-mq-virtio.c
blk-mq.c	Revert "block: inherit request start time from bio for BLK_CGROUP"	2022-04-27 13:51:28 -06:00
blk-mq.h	blk-mq: manage hctx map via xarray	2022-03-08 19:39:38 -07:00
blk-pm.c
blk-pm.h
blk-rq-qos.c
blk-rq-qos.h	block: fix rq-qos breakage from skipping rq_qos_done_bio()	2022-03-14 14:23:13 -06:00
blk-settings.c	scsi: block: Remove REQ_OP_WRITE_SAME support	2022-02-22 21:11:08 -05:00
blk-stat.c
blk-stat.h
blk-sysfs.c	SCSI misc on 20220324	2022-03-24 19:37:53 -07:00
blk-throttle.c	block: cancel all throttled bios in del_gendisk()	2022-03-18 09:57:56 -06:00
blk-throttle.h	block: cancel all throttled bios in del_gendisk()	2022-03-18 09:57:56 -06:00
blk-timeout.c
blk-wbt.c
blk-wbt.h	blk-wbt: remove wbt_track stub	2022-03-31 12:58:38 -06:00
blk-zoned.c	SCSI misc on 20220324	2022-03-24 19:37:53 -07:00
blk.h	SCSI misc on 20220324	2022-03-24 19:37:53 -07:00
bounce.c	for-5.18/write-streams-2022-03-18	2022-03-26 11:51:46 -07:00
bsg-lib.c
bsg.c
disk-events.c	block: remove genhd.h	2022-02-02 07:49:59 -07:00
elevator.c	for-5.18/block-2022-03-18	2022-03-21 16:48:55 -07:00
elevator.h
fops.c	for-5.18/write-streams-2022-03-18	2022-03-26 11:51:46 -07:00
genhd.c	for-5.18/block-2022-04-01	2022-04-01 16:20:00 -07:00
holder.c	block: remove genhd.h	2022-02-02 07:49:59 -07:00
ioctl.c	block/compat_ioctl: fix range check in BLKGETSIZE	2022-04-15 06:32:40 -06:00
ioprio.c
Kconfig	block: add pi for extended integrity	2022-03-07 12:48:35 -07:00
Kconfig.iosched
kyber-iosched.c
Makefile	blk-crypto: show crypto capabilities in sysfs	2022-02-28 06:40:23 -07:00
mq-deadline.c
opal_proto.h
sed-opal.c	block: remove genhd.h	2022-02-02 07:49:59 -07:00
t10-pi.c	block: add pi for extended integrity	2022-03-07 12:48:35 -07:00