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[PATCH] mm/slob.c: for_each_possible_cpu(), not NR_CPUS

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Convert for-loops that explicitly reference "NR_CPUS" into the
potentially more efficient for_each_possible_cpu() construct.

Signed-off-by: John Hawkes <hawkes@sgi.com>
Cc: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
John Hawkes 2006-04-18 22:20:33 -07:00 committed by Linus Torvalds
parent 4a3b98a422
commit 75129e297e
1 changed files with 3 additions and 7 deletions
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10
mm/slob.c
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@ -354,9 +354,7 @@ void *__alloc_percpu(size_t size)
if (!pdata)
return NULL;
for (i = 0; i < NR_CPUS; i++) {
if (!cpu_possible(i))
continue;
for_each_possible_cpu(i) {
pdata->ptrs[i] = kmalloc(size, GFP_KERNEL);
if (!pdata->ptrs[i])
goto unwind_oom;
@ -383,11 +381,9 @@ free_percpu(const void *objp)
int i;
struct percpu_data *p = (struct percpu_data *) (~(unsigned long) objp);
for (i = 0; i < NR_CPUS; i++) {
if (!cpu_possible(i))
continue;
for_each_possible_cpu(i)
kfree(p->ptrs[i]);
}
kfree(p);
}
EXPORT_SYMBOL(free_percpu);