Commit 9eccf2a8 authored by Christoph Lameter's avatar Christoph Lameter Committed by Linus Torvalds
Browse files

vmstat: remove prefetch

Remove the prefetch logic in order to avoid touching impossible per cpu
Signed-off-by: default avatarChristoph Lameter <>
Cc: Mike Travis <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent 7766755a
......@@ -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];
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment