Waiman Long 9fdac650c4 cgroup/cpuset: Fix a partition bug with hotplug ...

[ Upstream commit 15d428e6fe77fffc3f4fff923336036f5496ef17 ]

In cpuset_hotplug_workfn(), the detection of whether the cpu list
has been changed is done by comparing the effective cpus of the top
cpuset with the cpu_active_mask. However, in the rare case that just
all the CPUs in the subparts_cpus are offlined, the detection fails
and the partition states are not updated correctly. Fix it by forcing
the cpus_updated flag to true in this particular case.

Fixes: 4b842da276a8 ("cpuset: Make CPU hotplug work with partition")
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2021-09-15 09:47:32 +02:00

..

cgroup-internal.h

cgroup: make TRACE_CGROUP_PATH irq-safe

2019-04-19 11:26:49 -07:00

cgroup-v1.c

cgroup1: fix leaked context root causing sporadic NULL deref in LTP

2021-07-31 08:19:37 +02:00

cgroup.c

cgroup: disable controllers at parse time

2021-06-16 11:59:35 +02:00

cpuset.c

cgroup/cpuset: Fix a partition bug with hotplug

2021-09-15 09:47:32 +02:00

debug.c

kernel: cgroup: fix misuse of %x

2019-05-06 08:47:48 -07:00

freezer.c

cgroup: freezer: don't change task and cgroups status unnecessarily

2019-12-31 16:45:06 +01:00

legacy_freezer.c

cgroup: rename freezer.c into legacy_freezer.c

2019-04-19 11:26:48 -07:00

Makefile

cgroup: cgroup v2 freezer

2019-04-19 11:26:48 -07:00

namespace.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

pids.c

cgroup: pids: use atomic64_t for pids->limit

2019-12-17 19:56:15 +01:00

rdma.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 451

2019-06-19 17:09:08 +02:00

rstat.c

Revert "cgroup: Add memory barriers to plug cgroup_rstat_updated() race window"

2020-06-07 13:18:46 +02:00