From: Peter Zijlstra <[email protected]>
Much used per_cpu op by the additional policies.
Signed-off-by: Peter Zijlstra <[email protected]>
Signed-off-by: Marcelo Tosatti <[email protected]>
---
include/linux/percpu.h | 5 +++++
1 file changed, 5 insertions(+)
Index: linux-2.6/include/linux/percpu.h
===================================================================
--- linux-2.6.orig/include/linux/percpu.h 2006-03-13 20:38:20.000000000 +0100
+++ linux-2.6/include/linux/percpu.h 2006-03-13 20:45:24.000000000 +0100
@@ -15,6 +15,11 @@
#define get_cpu_var(var) (*({ preempt_disable(); &__get_cpu_var(var); }))
#define put_cpu_var(var) preempt_enable()
+#define __sum_cpu_var(type, var) ({ __typeof__(type) sum = 0; \
+ int cpu; \
+ for_each_cpu(cpu) sum += per_cpu(var, cpu); \
+ sum; })
+
#ifdef CONFIG_SMP
struct percpu_data {
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
