From: John Hawkes Date: Sun, 30 Oct 2005 01:17:01 +0000 (-0700) Subject: [PATCH] mm: wider use of for_each_*cpu() X-Git-Tag: v2.6.15-rc1~730^2^2~2 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=2f96996de0eda378df2a5f857ee1ef615ae10a4f;p=linux-2.6-omap-h63xx.git [PATCH] mm: wider use of for_each_*cpu() 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 Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 183abf39b44..2dbdd98426f 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -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++)