From: Cyrill Gorcunov <gorcunov@openvz.org>
To: Andrew Morton <akpm@linux-foundation.org>,
David Rientjes <rientjes@google.com>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH -mmotm] mm: setup_per_zone_inactive_ratio - do not call for int_sqrt if not needed
Date: Tue, 5 May 2009 10:07:33 +0400 [thread overview]
Message-ID: <20090505060733.GA4494@lenovo> (raw)
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;
reply other threads:[~2009-05-05 6:07 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20090505060733.GA4494@lenovo \
--to=gorcunov@openvz.org \
--cc=akpm@linux-foundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=rientjes@google.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox