From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rik van Riel Subject: [RFC -v6 PATCH 5/8] sched: drop superfluous tests from yield_to Date: Thu, 20 Jan 2011 16:37:22 -0500 Message-ID: <20110120163722.476accf5@annuminas.surriel.com> References: <20110120163127.2568f4fe@annuminas.surriel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: linux-kernel@vger.kernel.org, Avi Kiviti , Srivatsa Vaddagiri , Peter Zijlstra , Mike Galbraith , Chris Wright , ttracy@redhat.com, dshaks@redhat.com, "Nakajima, Jun" To: kvm@vger.kernel.org Return-path: In-Reply-To: <20110120163127.2568f4fe@annuminas.surriel.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org Fairness is enforced by pick_next_entity, so we can drop some superfluous tests from yield_to. Signed-off-by: Rik van Riel --- kernel/sched.c | 8 -------- 1 files changed, 0 insertions(+), 8 deletions(-) diff --git a/kernel/sched.c b/kernel/sched.c index 1f38ed2..398eedf 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -5307,14 +5307,6 @@ again: if (task_running(p_rq, p) || p->state) goto out; - if (!same_thread_group(p, curr)) - goto out; - -#ifdef CONFIG_FAIR_GROUP_SCHED - if (task_group(p) != task_group(curr)) - goto out; -#endif - yielded = curr->sched_class->yield_to_task(rq, p, preempt); out: