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| author | Paul E. McKenney <paulmck@linux.ibm.com> | 2018-11-06 19:09:14 -0800 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.ibm.com> | 2018-11-27 09:21:43 -0800 |
| commit | c9a863bbb1620dca3af57934cdbb002e852449fc (patch) | |
| tree | f7de4b3f809e172da15400bbc76ed08431f96321 /kernel/sched/membarrier.c | |
| parent | 51959d85f32dde9041655936eef206cc3323dc12 (diff) | |
| download | blackbird-obmc-linux-c9a863bbb1620dca3af57934cdbb002e852449fc.tar.gz blackbird-obmc-linux-c9a863bbb1620dca3af57934cdbb002e852449fc.zip | |
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/membarrier.c')
| -rw-r--r-- | kernel/sched/membarrier.c | 4 |
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); |
