Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=9eccf2a816ed0aad82b577de6a40cd098ad41944
Commit: 9eccf2a816ed0aad82b577de6a40cd098ad41944
Parent: 7766755a2f249e7e0dabc5255a0a3d151ff79821
Author: Christoph Lameter <[EMAIL PROTECTED]>
AuthorDate: Mon Feb 4 22:29:22 2008 -0800
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Tue Feb 5 09:44:18 2008 -0800
vmstat: remove prefetch
Remove the prefetch logic in order to avoid touching impossible per cpu
areas.
Signed-off-by: Christoph Lameter <[EMAIL PROTECTED]>
Cc: Mike Travis <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
mm/vmstat.c | 11 ++---------
1 files changed, 2 insertions(+), 9 deletions(-)
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 888668e..422d960 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -21,21 +21,14 @@ EXPORT_PER_CPU_SYMBOL(vm_event_states);
static void sum_vm_events(unsigned long *ret, cpumask_t *cpumask)
{
- int cpu = 0;
+ int cpu;
int i;
memset(ret, 0, NR_VM_EVENT_ITEMS * sizeof(unsigned long));
- cpu = first_cpu(*cpumask);
- while (cpu < NR_CPUS) {
+ for_each_cpu_mask(cpu, *cpumask) {
struct vm_event_state *this = &per_cpu(vm_event_states, cpu);
- cpu = next_cpu(cpu, *cpumask);
-
- if (cpu < NR_CPUS)
- prefetch(&per_cpu(vm_event_states, cpu));
-
-
for (i = 0; i < NR_VM_EVENT_ITEMS; i++)
ret[i] += this->event[i];
}
-
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