Commit 26a148eb authored Jul 15, 2011 by Richard Kennedy Committed by Ingo Molnar Jul 21, 2011

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>

parent 99bc5242

kernel/sched.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;
		};