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Tejun Heo d866dbf617 blkcg: rename blkcg->cgwb_refcnt to ->online_pin and always use it 
blkcg->cgwb_refcnt is used to delay blkcg offlining so that blkgs
don't get offlined while there are active cgwbs on them.  However, it
ends up making offlining unordered sometimes causing parents to be
offlined before children.

To fix it, we want child blkcgs to pin the parents' online states
turning the refcnt into a more generic online pinning mechanism.

In prepartion,

* blkcg->cgwb_refcnt -> blkcg->online_pin
* blkcg_cgwb_get/put() -> blkcg_pin/unpin_online()
* Take them out of CONFIG_CGROUP_WRITEBACK

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-04-01 14:56:42 -06:00
..
partitions
Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-03-30 16:13:08 -07:00
badblocks.c
block: switch all files cleared marked as GPLv2 to SPDX tags
2019-04-30 16:11:57 -06:00
bfq-cgroup.c
block, bfq: invoke flush_idle_tree after reparent_active_queues in pd_offline
2020-03-21 14:31:03 -06:00
bfq-iosched.c
block, bfq: turn put_queue into release_process_ref in __bfq_bic_change_cgroup
2020-03-21 14:31:00 -06:00
bfq-iosched.h
block, bfq: turn put_queue into release_process_ref in __bfq_bic_change_cgroup
2020-03-21 14:31:00 -06:00
bfq-wf2q.c
block, bfq: get a ref to a group when adding it to a service tree
2020-02-03 06:58:15 -07:00
bio-integrity.c
block: fix memleak of bio integrity data
2019-12-05 11:38:36 -07:00
bio.c
block: move bio_map_* to blk-map.c
2020-03-27 12:04:34 -06:00
blk-cgroup-rwstat.c
blk-cgroup: separate out blkg_rwstat under CONFIG_BLK_CGROUP_RWSTAT
2019-11-07 12:28:13 -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
blkcg: rename blkcg->cgwb_refcnt to ->online_pin and always use it
2020-04-01 14:56:42 -06:00
blk-core.c
block: return NULL in blk_alloc_queue() on error
2020-03-29 10:08:26 -06:00
blk-exec.c
block: account statistics for passthrough requests
2019-10-10 17:52:31 -06:00
blk-flush.c
Revert "blkdev: check for valid request queue before issuing flush"
2020-03-27 10:23:44 -06:00
blk-integrity.c
block: centralize PI remapping logic to the block layer
2019-09-17 20:03:49 -06:00
blk-ioc.c
block: Fix use-after-free issue accessing struct io_cq
2020-03-12 07:07:38 -06:00
blk-iocost.c
for-5.7/block-2020-03-29
2020-03-30 11:20:13 -07:00
blk-iolatency.c
blkcg: s/RQ_QOS_CGROUP/RQ_QOS_LATENCY/
2019-08-28 21:17:08 -06:00
blk-lib.c
block: fix 32 bit overflow in __blkdev_issue_discard()
2018-11-14 08:17:18 -07:00
blk-map.c
block: move bio_map_* to blk-map.c
2020-03-27 12:04:34 -06:00
blk-merge.c
block: fix get_max_segment_size() overflow on 32bit arch
2020-01-14 13:37:40 -07:00
blk-mq-cpumap.c
blk-mq: balance mapping between present CPUs and queues
2019-08-04 21:43:12 -06:00
blk-mq-debugfs-zoned.c
block: Cleanup license notice
2019-01-17 21:21:40 -07:00
blk-mq-debugfs.c
for-5.3/block-20190708
2019-07-09 10:45:06 -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: insert flush request to the front of dispatch queue
2020-03-12 07:26:12 -06:00
blk-mq-sched.h
block: blk-mq: Remove blk_mq_sched_started_request and started_request
2019-07-23 07:25:09 -06:00
blk-mq-sysfs.c
blk-mq: make sure that line break can be printed
2019-11-04 07:14:10 -07:00
blk-mq-tag.c
blk-mq: Remove some unused function arguments
2020-02-26 10:34:41 -07:00
blk-mq-tag.h
blk-mq: Remove some unused function arguments
2020-02-26 10:34:41 -07:00
blk-mq-virtio.c
block: Fix blk_mq_*_map_queues() kernel-doc headers
2019-05-31 15:12:34 -06:00
blk-mq.c
block: simplify queue allocation
2020-03-27 10:23:43 -06:00
blk-mq.h
blk-mq: Remove some unused function arguments
2020-02-26 10:34:41 -07:00
blk-pm.c
block: bypass blk_set_runtime_active for uninitialized q->dev
2019-09-12 07:11:56 -06:00
blk-pm.h
block: remove the queue_lock indirection
2018-11-15 12:17:28 -07:00
blk-rq-qos.c
blk-wbt: fix performance regression in wbt scale_up/scale_down
2019-10-06 09:26:41 -06:00
blk-rq-qos.h
blk-rq-qos: fix first node deletion of rq_qos_del()
2019-10-15 10:13:13 -06:00
blk-settings.c
for-5.7/drivers-2020-03-29
2020-03-30 11:43:51 -07:00
blk-softirq.c
block: Don't disable interrupts in trigger_softirq()
2019-11-18 07:29:22 -07:00
blk-stat.c
blk-stat: Optimise blk_stat_add()
2019-10-07 21:19:10 -06:00
blk-stat.h
block: deactivate blk_stat timer in wbt_disable_default()
2018-12-12 06:47:51 -07:00
blk-sysfs.c
block: Remove "dying" checks from sysfs callbacks
2019-10-07 08:31:59 -06:00
blk-throttle.c
blk-cgroup: separate out blkg_rwstat under CONFIG_BLK_CGROUP_RWSTAT
2019-11-07 12:28:13 -07:00
blk-timeout.c
block: add SPDX tags to block layer files missing licensing information
2019-04-30 16:12:03 -06:00
blk-wbt.c
blk-wbt: fix performance regression in wbt scale_up/scale_down
2019-10-06 09:26:41 -06:00
blk-wbt.h
block/rq_qos: implement rq_qos_ops->queue_depth_changed()
2019-08-28 21:17:07 -06:00
blk-zoned.c
for-5.7/drivers-2020-03-29
2020-03-30 11:43:51 -07:00
blk.h
block: move bio_map_* to blk-map.c
2020-03-27 12:04:34 -06:00
bounce.c
block: remove the i argument to bio_for_each_segment_all
2019-04-30 09:26:13 -06:00
bsg-lib.c
block: Fix the type of 'sts' in bsg_queue_rq()
2019-12-20 11:52:01 -07:00
bsg.c
compat_ioctl: bsg: add handler
2020-01-03 09:33:21 +01:00
cmdline-parser.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
elevator.c
Merge branch 'for-linus' into for-5.5/block
2019-11-07 12:27:19 -07:00
genhd.c
for-5.7/block-2020-03-29
2020-03-30 11:20:13 -07:00
ioctl.c
block: move block layer internals out of include/linux/genhd.h
2020-03-25 09:50:08 -06:00
ioprio.c
docs: block: convert to ReST
2019-07-15 09:20:27 -03:00
Kconfig
block: Allow t10-pi to be modular
2020-01-06 20:59:04 -07:00
Kconfig.iosched
blk-cgroup: separate out blkg_rwstat under CONFIG_BLK_CGROUP_RWSTAT
2019-11-07 12:28:13 -07:00
kyber-iosched.c
blk-mq: remove blk_mq_put_ctx()
2019-07-02 21:03:27 -06:00
Makefile
block: merge partition-generic.c and check.c
2020-03-24 07:57:08 -06:00
mq-deadline.c
block: Introduce elevator features
2019-09-05 19:52:33 -06:00
opal_proto.h
block: sed-opal: Change the check condition for regular session validity
2020-03-12 08:00:10 -06:00
scsi_ioctl.c
compat_ioctl: move CDROM_SEND_PACKET handling into scsi
2020-01-03 09:33:05 +01:00
sed-opal.c
block: sed-opal: Change the check condition for regular session validity
2020-03-12 08:00:10 -06:00
t10-pi.c
block: Allow t10-pi to be modular
2020-01-06 20:59:04 -07:00