Although the unbound workqueue cpumask can be overriden through sysfs, the housekeeping cpumask which drives the CPU isolation provides a relevant default value.
Signed-off-by: Frederic Weisbecker <[email protected]> Cc: Chris Metcalf <[email protected]> Cc: Rik van Riel <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Christoph Lameter <[email protected]> Cc: Paul E. McKenney <[email protected]> Cc: Wanpeng Li <[email protected]> Cc: Luiz Capitulino <[email protected]> --- kernel/workqueue.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/workqueue.c b/kernel/workqueue.c index a86688f..4303c06 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -48,6 +48,7 @@ #include <linux/nodemask.h> #include <linux/moduleparam.h> #include <linux/uaccess.h> +#include <linux/housekeeping.h> #include "workqueue_internal.h" @@ -5524,7 +5525,7 @@ int __init workqueue_init_early(void) WARN_ON(__alignof__(struct pool_workqueue) < __alignof__(long long)); BUG_ON(!alloc_cpumask_var(&wq_unbound_cpumask, GFP_KERNEL)); - cpumask_copy(wq_unbound_cpumask, cpu_possible_mask); + cpumask_copy(wq_unbound_cpumask, housekeeping_cpumask()); pwq_cache = KMEM_CACHE(pool_workqueue, SLAB_PANIC); -- 2.7.4
