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[tip/core/rcu,06/41] sparc/oprofile: Convert timer_stop() to use synchronize_rcu()

Message ID 20181111194410.6368-6-paulmck@linux.ibm.com
State Not Applicable
Delegated to: David Miller
Headers show
Series None | expand

Commit Message

Paul E. McKenney Nov. 11, 2018, 7:43 p.m. UTC
Now that synchronize_rcu() waits for preempt-disable regions of code
in addition to explicitly marked RCU read-side critical sections,
synchronize_rcu() can be used in place of synchronize_sched().  This
commit therefore makes that change.

Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Cc: Robert Richter <rric@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: <oprofile-list@lists.sf.net>
Cc: <sparclinux@vger.kernel.org>
---
 arch/sparc/oprofile/init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/arch/sparc/oprofile/init.c b/arch/sparc/oprofile/init.c
index f9024bccff16..43730c9b1c86 100644
--- a/arch/sparc/oprofile/init.c
+++ b/arch/sparc/oprofile/init.c
@@ -53,7 +53,7 @@  static void timer_stop(void)
 {
 	nmi_adjust_hz(1);
 	unregister_die_notifier(&profile_timer_exceptions_nb);
-	synchronize_sched();  /* Allow already-started NMIs to complete. */
+	synchronize_rcu();  /* Allow already-started NMIs to complete. */
 }
 
 static int op_nmi_timer_init(struct oprofile_operations *ops)