Commit c75e0128 authored Jun 10, 2013 by Viresh Kumar Committed by Ingo Molnar Jun 19, 2013

sched: Don't set sd->child to NULL when it is already NULL



Memory for sd is allocated with kzalloc_node() which will initialize its fields
with zero. In build_sched_domain() we are setting sd->child to child even if
child is NULL, which isn't required.

Lets do it only if child isn't NULL.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/f4753a1730051341003ad2ad29a3229c7356678e.1370861520.git.viresh.kumar@linaro.org


Signed-off-by: Ingo Molnar <mingo@kernel.org>

parent 1c632169

kernel/sched/core.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -5955,8 +5955,8 @@ struct sched_domain build_sched_domain(struct sched_domain_topology_level tl,
		sd->level = child->level + 1;
		sched_domain_level_max = max(sched_domain_level_max, sd->level);
		child->parent = sd;
		}
		sd->child = child;
		}
		set_domain_attribute(sd, attr);

		return sd;

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