Messages in this thread Patch in this message | | | Date | Thu, 21 Jul 2011 18:30:39 GMT | From | tip-bot for Richard Kennedy <> | Subject | [tip:sched/core] sched: Reorder root_domain to remove 64 bit alignment padding |
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Commit-ID: 26a148eb9c790149750f7e77da0d96029443d400 Gitweb: http://git.kernel.org/tip/26a148eb9c790149750f7e77da0d96029443d400 Author: Richard Kennedy <richard@rsk.demon.co.uk> AuthorDate: Fri, 15 Jul 2011 11:41:31 +0100 Committer: Ingo Molnar <mingo@elte.hu> CommitDate: Thu, 21 Jul 2011 18:01:52 +0200
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> --- kernel/sched.c | 2 +- 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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