Messages in this thread Patch in this message | | | From | Minchan Kim <> | Subject | [PATCH 1/2] Cleanup: use for_each_online_cpu in vmstat | Date | Thu, 10 Jun 2010 22:28:46 +0900 |
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The sum_vm_events passes cpumask for for_each_cpu. But it's useless since we have for_each_online_cpu. Althougth it's tirival overhead, it's not good about coding consistency.
Let's use for_each_online_cpu instead of for_each_cpu with cpumask argument.
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Christoph Lameter <clameter@sgi.com> Signed-off-by: Minchan Kim <minchan.kim@gmail.com> --- mm/vmstat.c | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/mm/vmstat.c b/mm/vmstat.c index 7759941..15a14b1 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -22,14 +22,14 @@ DEFINE_PER_CPU(struct vm_event_state, vm_event_states) = {{0}}; EXPORT_PER_CPU_SYMBOL(vm_event_states); -static void sum_vm_events(unsigned long *ret, const struct cpumask *cpumask) +static void sum_vm_events(unsigned long *ret) { int cpu; int i; memset(ret, 0, NR_VM_EVENT_ITEMS * sizeof(unsigned long)); - for_each_cpu(cpu, cpumask) { + for_each_online_cpu(cpu) { struct vm_event_state *this = &per_cpu(vm_event_states, cpu); for (i = 0; i < NR_VM_EVENT_ITEMS; i++) @@ -45,7 +45,7 @@ static void sum_vm_events(unsigned long *ret, const struct cpumask *cpumask) void all_vm_events(unsigned long *ret) { get_online_cpus(); - sum_vm_events(ret, cpu_online_mask); + sum_vm_events(ret); put_online_cpus(); } EXPORT_SYMBOL_GPL(all_vm_events); -- 1.7.0.5
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