* [PATCH -mmotm] mm: setup_per_zone_inactive_ratio - do not call for int_sqrt if not needed
@ 2009-05-05 6:07 Cyrill Gorcunov
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From: Cyrill Gorcunov @ 2009-05-05 6:07 UTC (permalink / raw)
To: Andrew Morton, David Rientjes; +Cc: LKML
int_sqrt returns 0 iif argument is zero so call it if only needed.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
---
mm/page_alloc.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
Index: linux-2.6.git/mm/page_alloc.c
=====================================================================
--- linux-2.6.git.orig/mm/page_alloc.c
+++ linux-2.6.git/mm/page_alloc.c
@@ -4553,8 +4553,9 @@ static void setup_per_zone_inactive_rati
/* 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;
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2009-05-05 6:07 [PATCH -mmotm] mm: setup_per_zone_inactive_ratio - do not call for int_sqrt if not needed Cyrill Gorcunov
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