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authorPaul E. McKenney <paulmck@linux.ibm.com>2018-11-07 06:09:14 +0300
committerPaul E. McKenney <paulmck@linux.ibm.com>2018-11-27 20:21:43 +0300
commitc9a863bbb1620dca3af57934cdbb002e852449fc (patch)
treef7de4b3f809e172da15400bbc76ed08431f96321 /kernel/sched
parent51959d85f32dde9041655936eef206cc3323dc12 (diff)
downloadlinux-c9a863bbb1620dca3af57934cdbb002e852449fc.tar.xz
sched/membarrier: synchronize_sched() with synchronize_rcu()
Now that synchronize_rcu() waits for preempt-disable regions of code as well as RCU read-side critical sections, synchronize_sched() can be replaced by synchronize_rcu(). This commit therefore makes this change. Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org>
Diffstat (limited to 'kernel/sched')
-rw-r--r--kernel/sched/membarrier.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/sched/membarrier.c b/kernel/sched/membarrier.c
index 388a7a6c1aa2..3cd8a3a795d2 100644
--- a/kernel/sched/membarrier.c
+++ b/kernel/sched/membarrier.c
@@ -210,7 +210,7 @@ static int membarrier_register_global_expedited(void)
* future scheduler executions will observe the new
* thread flag state for this mm.
*/
- synchronize_sched();
+ synchronize_rcu();
}
atomic_or(MEMBARRIER_STATE_GLOBAL_EXPEDITED_READY,
&mm->membarrier_state);
@@ -246,7 +246,7 @@ static int membarrier_register_private_expedited(int flags)
* Ensure all future scheduler executions will observe the
* new thread flag state for this process.
*/
- synchronize_sched();
+ synchronize_rcu();
}
atomic_or(state, &mm->membarrier_state);