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[PATCH] mm: wider use of for_each_*cpu()

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In 'mm' change the explicit use of a for-loop using NR_CPUS into the
general for_each_cpu() constructs.  This widens the scope of potential
future optimizations of the general constructs, as well as takes advantage
of the existing optimizations of first_cpu() and next_cpu(), which is
advantageous when the true CPU count is much smaller than NR_CPUS.

Signed-off-by: John Hawkes <hawkes@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
John Hawkes 2005-10-29 18:17:01 -07:00 committed by Linus Torvalds
parent 5fcbb23050
commit 2f96996de0
1 changed files with 1 additions and 4 deletions
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5
mm/page_alloc.c
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@ -1331,12 +1331,9 @@ void show_free_areas(void)
} else
printk("\n");
for (cpu = 0; cpu < NR_CPUS; ++cpu) {
for_each_cpu(cpu) {
struct per_cpu_pageset *pageset;
if (!cpu_possible(cpu))
continue;
pageset = zone_pcp(zone, cpu);
for (temperature = 0; temperature < 2; temperature++)