linux-kernel - [PATCH 3/5] RT - fix mistargeted RESCHED

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Message-ID: <20071009142559.4941.60009.stgit@novell1.haskins.net>
Date:	Tue, 09 Oct 2007 10:25:59 -0400
From:	Gregory Haskins <ghaskins@...ell.com>
To:	mingo@...e.hu, linux-rt-users@...r.kernel.org, rostedt@...dmis.org
Cc:	kravetz@...ibm.com, linux-kernel@...r.kernel.org,
	ghaskins@...ell.com, pmorreale@...ell.com, sdietrich@...ell.com
Subject: [PATCH 3/5] RT - fix mistargeted RESCHED_IPI

Any number of tasks could be queued behind the current task, so direct the
balance IPI at all CPUs (other than current)

Signed-off-by: Gregory Haskins <ghaskins@...ell.com>
CC: Steven Rostedt <rostedt@...dmis.org>
CC: Mike Kravetz <kravetz@...ibm.com>
CC: Peter W. Morreale <pmorreale@...ell.com>
---

 kernel/sched.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/sched.c b/kernel/sched.c
index 3e75c62..551629b 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -2209,7 +2209,7 @@ static inline void finish_task_switch(struct rq *rq, struct task_struct *prev)
 	 */
 	if (unlikely(rt_task(current) && rq->rt_nr_running > 1)) {
 		schedstat_inc(rq, rto_schedule);
-		smp_send_reschedule_allbutself_cpumask(current->cpus_allowed);
+		smp_send_reschedule_allbutself();
 	}
 #endif
 	prev_state = prev->state;

-
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