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author | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-04-14 21:28:32 (GMT) |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-04-14 21:28:32 (GMT) |
commit | 4b2f8838479eb2abe042e094f7d2cced6d5ea772 (patch) | |
tree | 5ef3236b354a494c8d71a572896283e44989c696 /kernel/cpuset.c | |
parent | c848791f0336914a3081ea3fe029cf177d81de81 (diff) | |
parent | 9fd85eb502a78bd812db58bd1f668b2a06ee30a5 (diff) | |
download | linux-4b2f8838479eb2abe042e094f7d2cced6d5ea772.tar.xz |
Merge branch 'devel-stable' into for-next
Diffstat (limited to 'kernel/cpuset.c')
-rw-r--r-- | kernel/cpuset.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 1d1fe93..fc7f474 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -548,9 +548,6 @@ static void update_domain_attr_tree(struct sched_domain_attr *dattr, rcu_read_lock(); cpuset_for_each_descendant_pre(cp, pos_css, root_cs) { - if (cp == root_cs) - continue; - /* skip the whole subtree if @cp doesn't have any CPU */ if (cpumask_empty(cp->cpus_allowed)) { pos_css = css_rightmost_descendant(pos_css); @@ -873,7 +870,7 @@ static void update_cpumasks_hier(struct cpuset *cs, struct cpumask *new_cpus) * If it becomes empty, inherit the effective mask of the * parent, which is guaranteed to have some CPUs. */ - if (cpumask_empty(new_cpus)) + if (cgroup_on_dfl(cp->css.cgroup) && cpumask_empty(new_cpus)) cpumask_copy(new_cpus, parent->effective_cpus); /* Skip the whole subtree if the cpumask remains the same. */ @@ -1129,7 +1126,7 @@ static void update_nodemasks_hier(struct cpuset *cs, nodemask_t *new_mems) * If it becomes empty, inherit the effective mask of the * parent, which is guaranteed to have some MEMs. */ - if (nodes_empty(*new_mems)) + if (cgroup_on_dfl(cp->css.cgroup) && nodes_empty(*new_mems)) *new_mems = parent->effective_mems; /* Skip the whole subtree if the nodemask remains the same. */ @@ -1979,7 +1976,9 @@ static int cpuset_css_online(struct cgroup_subsys_state *css) spin_lock_irq(&callback_lock); cs->mems_allowed = parent->mems_allowed; + cs->effective_mems = parent->mems_allowed; cpumask_copy(cs->cpus_allowed, parent->cpus_allowed); + cpumask_copy(cs->effective_cpus, parent->cpus_allowed); spin_unlock_irq(&callback_lock); out_unlock: mutex_unlock(&cpuset_mutex); |