diff options
| author | Christoph Lameter <clameter@sgi.com> | 2006-03-17 08:04:00 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-17 16:51:25 +0100 |
| commit | 67890d7084085e29c51afa2514036d42643fd3cf (patch) | |
| tree | 2562028768e7236ee70a5954aa45d8922fcbf350 /kernel | |
| parent | [PATCH] page migration: Fail with error if swap not setup (diff) | |
| download | linux-67890d7084085e29c51afa2514036d42643fd3cf.tar.xz linux-67890d7084085e29c51afa2514036d42643fd3cf.zip | |
[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>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/timer.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/timer.c b/kernel/timer.c index bf7c4193b936..2410c18dbeb1 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) |