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Tejun Heo 4308a434e5 blkcg: don't offline parent blkcg first 
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.

Let's fix this by making child blkcgs pin the parents' online states.

Note that pin/unpin names are chosen over get/put intentionally
because css uses get/put online for something different.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
History 2020-04-01 14:56:44 -06:00
..
acpi Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2020-03-30 16:17:15 -07:00
asm-generic Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-03-31 17:29:33 -07:00
clocksource clocksource/drivers/timer-ti-dm: Implement cpu_pm notifier for context save and restore 2020-03-16 12:40:29 +01:00
crypto crypto: x86/curve25519 - support assemblers with no adx support 2020-03-05 18:28:09 +11:00
drm drm/dp_mst: Use full_pbn instead of available_pbn for bandwidth checks 2020-03-12 19:07:24 -04:00
dt-bindings media updates for v5.7-rc1 2020-03-30 13:42:05 -07:00
keys powerpc updates for 5.5 2019-11-30 14:35:43 -08:00
kunit kunit: allow kunit tests to be loaded as a module 2020-01-09 16:42:29 -07:00
kvm irqchip/gic-v4.1: Move doorbell management to the GICv4 abstraction layer 2020-03-24 12:15:51 +00:00
linux blkcg: don't offline parent blkcg first 2020-04-01 14:56:44 -06:00
math-emu nds32: Mark expected switch fall-throughs 2019-08-29 11:06:56 -05:00
media media: cec-notifier: make cec_notifier_get_conn() static 2020-03-20 09:02:45 +01:00
misc auxdisplay: charlcd: move charlcd.h to drivers/auxdisplay 2019-08-08 19:59:17 +02:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-03-31 17:29:33 -07:00
pcmcia It's been a relatively busy cycle for docs: 2019-07-09 12:34:26 -07:00
ras RAS: Use consistent types for UUIDs 2019-01-25 16:40:40 +01:00
rdma RDMA/core: Make the entire API tree static 2020-01-30 16:28:52 -04:00
scsi scsi: simplify scsi_partsize 2020-03-24 07:57:07 -06:00
soc net: dsa: felix: add port policers 2020-03-30 11:44:00 -07:00
sound ASoC: Fixes for v5.6 2020-03-07 07:24:36 +01:00
target scsi: target: Remove tpg_list and se_portal_group.se_tpg_node 2019-10-03 22:00:09 -04:00
trace Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-03-31 17:29:33 -07:00
uapi Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-03-31 17:29:33 -07:00
vdso vdso: Fix clocksource.h macro detection 2020-03-23 18:51:08 +01:00
video drm/dsi: rename MIPI_DCS_SET_PARTIAL_AREA to MIPI_DCS_SET_PARTIAL_ROWS 2019-11-07 14:59:56 +02:00
xen xen/xenbus: fix locking 2020-03-05 09:42:23 -06:00