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| author | John Hawkes <hawkes@sgi.com> | 2005-10-29 18:17:01 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-10-29 21:40:45 -0700 |
| commit | 2f96996de0eda378df2a5f857ee1ef615ae10a4f (patch) | |
| tree | ee3075c48a99369c9748ee17d3bb8396e9f38372 /mm | |
| parent | 5fcbb23050936d69de8087d4b311eaf55cb42740 (diff) | |
| download | linux-2f96996de0eda378df2a5f857ee1ef615ae10a4f.tar.gz linux-2f96996de0eda378df2a5f857ee1ef615ae10a4f.tar.bz2 linux-2f96996de0eda378df2a5f857ee1ef615ae10a4f.zip | |
[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 <hawkes@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/page_alloc.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 183abf39b445..2dbdd98426fd 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++) |