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Commit 5c87eada authored by Cyrill Gorcunov's avatar Cyrill Gorcunov Committed by Linus Torvalds
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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: default avatarCyrill Gorcunov <gorcunov@openvz.org>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent af166777

mm/page_alloc.c

+3 −2
Original line number Diff line number Diff line
@@ -4471,8 +4471,9 @@ static void setup_per_zone_inactive_ratio(void) 


		/* Zone size in gigabytes */

		gb = zone->present_pages >> (30 - PAGE_SHIFT);

		if (gb)

			ratio = int_sqrt(10 * gb);

		if (!ratio)

		else

			ratio = 1;



		zone->inactive_ratio = ratio;