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sched: Don't set sd->child to NULL when it is already NULL
author
Viresh Kumar
<viresh.kumar@linaro.org>
Mon, 10 Jun 2013 10:57:19 +0000
(16:27 +0530)
committer
Ingo Molnar
<mingo@kernel.org>
Wed, 19 Jun 2013 10:58:45 +0000
(12:58 +0200)
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>
kernel/sched/core.c
patch
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blob
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diff --git
a/kernel/sched/core.c
b/kernel/sched/core.c
index
3de6264
..
88c2c0e
100644
(file)
--- a/
kernel/sched/core.c
+++ b/
kernel/sched/core.c
@@
-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;
}
- sd->child = child;
set_domain_attribute(sd, attr);
return sd;