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authorRichard Kennedy <richard@rsk.demon.co.uk>2011-07-15 11:41:31 +0100
committerIngo Molnar <mingo@elte.hu>2011-07-21 18:01:52 +0200
commit26a148eb9c790149750f7e77da0d96029443d400 (patch)
tree25d64457be424e6072dd5d7a75c868615dc3b063
parent99bc52429f11d1f4f81495ac8237085aaeb6bccf (diff)
downloadop-kernel-dev-26a148eb9c790149750f7e77da0d96029443d400.zip
op-kernel-dev-26a148eb9c790149750f7e77da0d96029443d400.tar.gz
sched: Reorder root_domain to remove 64 bit alignment padding
Reorder root_domain to remove 8 bytes of alignment padding on 64 bit builds, this shrinks the size from 1736 to 1728 bytes, therefore using one fewer cachelines. Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1310726492.1977.5.camel@castor.rsk Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--kernel/sched.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index f107204..e3f0bac 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -422,6 +422,7 @@ struct rt_rq {
*/
struct root_domain {
atomic_t refcount;
+ atomic_t rto_count;
struct rcu_head rcu;
cpumask_var_t span;
cpumask_var_t online;
@@ -431,7 +432,6 @@ struct root_domain {
* one runnable RT task.
*/
cpumask_var_t rto_mask;
- atomic_t rto_count;
struct cpupri cpupri;
};
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