Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756042Ab1DTUzp (ORCPT ); Wed, 20 Apr 2011 16:55:45 -0400 Received: from smtp-out.google.com ([74.125.121.67]:47387 "EHLO smtp-out.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755658Ab1DTUwB (ORCPT ); Wed, 20 Apr 2011 16:52:01 -0400 DomainKey-Signature: a=rsa-sha1; s=beta; d=google.com; c=nofws; q=dns; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; b=UnKHDLoqta4KKidEge/d1eT+FCIuIKSBpi/F7UhPaG5ltCFlUb2c7+ds9hv6YOCLX kHIOymgXr05KD51wHNDWg== From: Nikhil Rao To: Ingo Molnar , Peter Zijlstra Cc: Paul Turner , Mike Galbraith , linux-kernel@vger.kernel.org, Nikhil Rao Subject: [RFC][Patch 17/18] sched: update f_b_q() to use u64 for weighted cpuload Date: Wed, 20 Apr 2011 13:51:36 -0700 Message-Id: <1303332697-16426-18-git-send-email-ncrao@google.com> X-Mailer: git-send-email 1.7.3.1 In-Reply-To: <1303332697-16426-1-git-send-email-ncrao@google.com> References: <1303332697-16426-1-git-send-email-ncrao@google.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1407 Lines: 45 Update f_b_q() to use u64 when comparing loads. Signed-off-by: Nikhil Rao --- kernel/sched_fair.c | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-) diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index 386d832..33c36f1 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -3203,14 +3203,14 @@ find_busiest_queue(struct sched_domain *sd, struct sched_group *group, const struct cpumask *cpus) { struct rq *busiest = NULL, *rq; - unsigned long max_load = 0; + u64 max_load = 0; int i; for_each_cpu(i, sched_group_cpus(group)) { unsigned long power = power_of(i); unsigned long capacity = DIV_ROUND_CLOSEST(power, SCHED_POWER_SCALE); - unsigned long wl; + u64 wl; if (!capacity) capacity = fix_small_capacity(sd, group); @@ -3234,7 +3234,7 @@ find_busiest_queue(struct sched_domain *sd, struct sched_group *group, * the load can be moved away from the cpu that is potentially * running at a lower capacity. */ - wl = (wl * SCHED_POWER_SCALE) / power; + wl = div_u64(wl * SCHED_POWER_SCALE, power); if (wl > max_load) { max_load = wl; -- 1.7.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/