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| author | Cyrill Gorcunov <gorcunov@openvz.org> | 2009-06-16 15:32:32 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-16 19:47:39 -0700 |
| commit | 5c87eada68fe5d29a5f67528f81b6e45124f579b (patch) | |
| tree | 11088d75bd2132fecf70e402d4334686461aba7c /mm | |
| parent | af166777cf451f0373b952ce6766dc1c25385686 (diff) | |
| download | lwn-5c87eada68fe5d29a5f67528f81b6e45124f579b.tar.gz lwn-5c87eada68fe5d29a5f67528f81b6e45124f579b.zip | |
mm: setup_per_zone_inactive_ratio - do not call for int_sqrt if not needed
int_sqrt() returns 0 if its argument is zero so call it if only needed.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/page_alloc.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index e5b8f628d166..db8c46ffa9f5 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -4471,8 +4471,9 @@ static void setup_per_zone_inactive_ratio(void) /* Zone size in gigabytes */ gb = zone->present_pages >> (30 - PAGE_SHIFT); - ratio = int_sqrt(10 * gb); - if (!ratio) + if (gb) + ratio = int_sqrt(10 * gb); + else ratio = 1; zone->inactive_ratio = ratio; |