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authorLinus Torvalds <torvalds@linux-foundation.org>2022-05-12 10:42:56 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-05-12 10:42:56 -0700
commit0ac824f379fba2c2b17b75fd5ada69cd68c66348 (patch)
tree18d4e7ddebb2c8aef7f138c970f7755cdc96e8c2
parentc37dba6ae45c2f0ec9913d7c96790fc00976d3d4 (diff)
parent2685027fca387b602ae565bff17895188b803988 (diff)
downloadlinux-0ac824f379fba2c2b17b75fd5ada69cd68c66348.tar.gz
Merge branch 'for-5.18-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fix from Tejun Heo: "Waiman's fix for a cgroup2 cpuset bug where it could miss nodes which were hot-added" * 'for-5.18-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup/cpuset: Remove cpus_allowed/mems_allowed setup in cpuset_init_smp()
-rw-r--r--kernel/cgroup/cpuset.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
index 9390bfd9f1cd38..71a418858a5e0d 100644
--- a/kernel/cgroup/cpuset.c
+++ b/kernel/cgroup/cpuset.c
@@ -3390,8 +3390,11 @@ static struct notifier_block cpuset_track_online_nodes_nb = {
*/
void __init cpuset_init_smp(void)
{
- cpumask_copy(top_cpuset.cpus_allowed, cpu_active_mask);
- top_cpuset.mems_allowed = node_states[N_MEMORY];
+ /*
+ * cpus_allowd/mems_allowed set to v2 values in the initial
+ * cpuset_bind() call will be reset to v1 values in another
+ * cpuset_bind() call when v1 cpuset is mounted.
+ */
top_cpuset.old_mems_allowed = top_cpuset.mems_allowed;
cpumask_copy(top_cpuset.effective_cpus, cpu_active_mask);