Messages in this thread Patch in this message | | | Date | Tue, 10 Nov 2009 22:27:58 GMT | From | "tip-bot for Paul E. McKenney" <> | Subject | [tip:core/rcu] rcu: Enable synchronize_sched_expedited() fastpath |
| |
Commit-ID: 956539b75921f561c0956c22d37320780e8b4ba1 Gitweb: http://git.kernel.org/tip/956539b75921f561c0956c22d37320780e8b4ba1 Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com> AuthorDate: Tue, 10 Nov 2009 13:37:20 -0800 Committer: Ingo Molnar <mingo@elte.hu> CommitDate: Tue, 10 Nov 2009 22:48:49 +0100
rcu: Enable synchronize_sched_expedited() fastpath
This patch adds a counter increment to enable tasks to actually take the synchronize_sched_expedited() function's fastpath.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: laijs@cn.fujitsu.com Cc: dipankar@in.ibm.com Cc: mathieu.desnoyers@polymtl.ca Cc: josh@joshtriplett.org Cc: dvhltc@us.ibm.com Cc: niv@us.ibm.com Cc: peterz@infradead.org Cc: rostedt@goodmis.org Cc: Valdis.Kletnieks@vt.edu Cc: dhowells@redhat.com LKML-Reference: <1257889042435-git-send-email-> Signed-off-by: Ingo Molnar <mingo@elte.hu> --- kernel/sched.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/kernel/sched.c b/kernel/sched.c index 76c0e96..e69fee4 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -10865,6 +10865,7 @@ void synchronize_sched_expedited(void) spin_unlock_irqrestore(&rq->lock, flags); } rcu_expedited_state = RCU_EXPEDITED_STATE_IDLE; + synchronize_sched_expedited_count++; mutex_unlock(&rcu_sched_expedited_mutex); put_online_cpus(); if (need_full_sync)
| |