We don't remove the cpu that went offline from our cpumasks
on cpu hotplug. This got lost somewhere along the line, so
restore it. This fixes a hang of the padata instance on cpu
hotplug.
Signed-off-by: Steffen Klassert <steffen.klass...@secunet.com>
---
kernel/padata.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/kernel/padata.c b/kernel/padata.c
index de3d0d9..89fe3d1 100644
--- a/kernel/padata.c
+++ b/kernel/padata.c
@@ -748,6 +748,9 @@ static int __padata_remove_cpu(struct padata_instance
*pinst, int cpu)
return -ENOMEM;
padata_replace(pinst, pd);
+
+ cpumask_clear_cpu(cpu, pd->cpumask.cbcpu);
+ cpumask_clear_cpu(cpu, pd->cpumask.pcpu);
}
return 0;
--
1.7.0.4
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