diff options
author | Fenghua Yu <fenghua.yu@intel.com> | 2007-07-19 04:48:13 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-19 13:04:45 -0400 |
commit | f34e3b61f2be9628bd41244f3ecc42009c5eced5 (patch) | |
tree | 192a64c12f84b3d69b9bf12ba56c2c7d86bc269b /kernel/sched.c | |
parent | 5fb7dc37dc16fbc8b80d81318a582201ef7e280d (diff) |
use the new percpu interface for shared data
Currently most of the per cpu data, which is accessed by different cpus,
has a ____cacheline_aligned_in_smp attribute. Move all this data to the
new per cpu shared data section: .data.percpu.shared_aligned.
This will seperate the percpu data which is referenced frequently by other
cpus from the local only percpu data.
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/sched.c')
-rw-r--r-- | kernel/sched.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index cb31fb4a1379..645256b228c3 100644 --- a/kernel/sched.c +++ b/kernel/sched.c | |||
@@ -301,7 +301,7 @@ struct rq { | |||
301 | struct lock_class_key rq_lock_key; | 301 | struct lock_class_key rq_lock_key; |
302 | }; | 302 | }; |
303 | 303 | ||
304 | static DEFINE_PER_CPU(struct rq, runqueues) ____cacheline_aligned_in_smp; | 304 | static DEFINE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues); |
305 | static DEFINE_MUTEX(sched_hotcpu_mutex); | 305 | static DEFINE_MUTEX(sched_hotcpu_mutex); |
306 | 306 | ||
307 | static inline void check_preempt_curr(struct rq *rq, struct task_struct *p) | 307 | static inline void check_preempt_curr(struct rq *rq, struct task_struct *p) |