linux-kernel - [tip:sched/core] sched: Avoid expensive initial update_cfs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <tip-6ea72f12069306b235151c5b05ac0cca7e1dedfa@git.kernel.org>
Date:	Thu, 27 Jan 2011 11:58:32 GMT
From:	tip-bot for Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	a.p.zijlstra@...llo.nl, pjt@...gle.com, tglx@...utronix.de,
	mingo@...e.hu
Subject: [tip:sched/core] sched: Avoid expensive initial update_cfs_load(), on UP too

Commit-ID:  6ea72f12069306b235151c5b05ac0cca7e1dedfa
Gitweb:     http://git.kernel.org/tip/6ea72f12069306b235151c5b05ac0cca7e1dedfa
Author:     Peter Zijlstra <a.p.zijlstra@...llo.nl>
AuthorDate: Wed, 26 Jan 2011 13:36:03 +0100
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Thu, 27 Jan 2011 12:48:14 +0100

sched: Avoid expensive initial update_cfs_load(), on UP too

Fix the build on UP.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Paul Turner <pjt@...gle.com>
LKML-Reference: <20110122044852.102126037@...gle.com>
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 kernel/sched.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/kernel/sched.c b/kernel/sched.c
index 78fa753..477e1bc 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -7922,8 +7922,10 @@ static void init_cfs_rq(struct cfs_rq *cfs_rq, struct rq *rq)
 #ifdef CONFIG_FAIR_GROUP_SCHED
 	cfs_rq->rq = rq;
 	/* allow initial update_cfs_load() to truncate */
+#ifdef CONFIG_SMP
 	cfs_rq->load_stamp = 1;
 #endif
+#endif
 	cfs_rq->min_vruntime = (u64)(-(1LL << 20));
 }
 
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/