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authorChristoph Lameter <clameter@sgi.com>2006-03-16 23:04:00 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-17 07:51:25 -0800
commit67890d7084085e29c51afa2514036d42643fd3cf (patch)
tree2562028768e7236ee70a5954aa45d8922fcbf350
parent90036ee5938d89638e80f4d0d0700d0f2dbd4a6a (diff)
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[PATCH] time_interpolator: add __read_mostly
The pointer to the current time interpolator and the current list of time interpolators are typically only changed during bootup. Adding __read_mostly takes them away from possibly hot cachelines. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--kernel/timer.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/timer.c b/kernel/timer.c
index bf7c4193b93..2410c18dbeb 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -1354,8 +1354,8 @@ void __init init_timers(void)
#ifdef CONFIG_TIME_INTERPOLATION
-struct time_interpolator *time_interpolator;
-static struct time_interpolator *time_interpolator_list;
+struct time_interpolator *time_interpolator __read_mostly;
+static struct time_interpolator *time_interpolator_list __read_mostly;
static DEFINE_SPINLOCK(time_interpolator_lock);
static inline u64 time_interpolator_get_cycles(unsigned int src)