From mboxrd@z Thu Jan 1 00:00:00 1970 From: Glauber Costa Subject: [PATCH v3 5/6] Also record sleep start for a task group Date: Wed, 30 May 2012 13:48:36 +0400 Message-ID: <1338371317-5980-6-git-send-email-glommer@parallels.com> References: <1338371317-5980-1-git-send-email-glommer@parallels.com> Return-path: In-Reply-To: <1338371317-5980-1-git-send-email-glommer@parallels.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-kernel@vger.kernel.org Cc: cgroups@vger.kernel.org, devel@openvz.org, Paul Turner , Peter Zijlstra , Tejun Heo , "Eric W. Biederman" , handai.szj@gmail.com, Andrew.Phillips@lmax.com, Serge Hallyn , Glauber Costa When we're dealing with a task group, instead of a task, also record the start of its sleep time. Since the test agains TASK_UNINTERRUPTIBLE does not really make sense and lack an obvious analogous, we always record it as sleep_start, never block_start. Signed-off-by: Glauber Costa CC: Peter Zijlstra CC: Paul Turner --- kernel/sched/fair.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index c26fe38..d932559 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -1182,7 +1182,8 @@ dequeue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags) se->statistics.sleep_start = rq_of(cfs_rq)->clock; if (tsk->state & TASK_UNINTERRUPTIBLE) se->statistics.block_start = rq_of(cfs_rq)->clock; - } + } else + se->statistics.sleep_start = rq_of(cfs_rq)->clock; #endif } -- 1.7.10.2