From: Paul E. McKenney Date: Tue, 30 Oct 2018 22:45:04 +0000 (-0700) Subject: sparc/oprofile: Convert timer_stop() to use synchronize_rcu() X-Git-Tag: v5.0-rc1~152^2^2~17^2~32 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=8fa9eb388eb00f7a63caf0fd370f8c134015fc1f;p=linux.git sparc/oprofile: Convert timer_stop() to use synchronize_rcu() 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 Cc: Robert Richter Cc: "David S. Miller" Cc: Cc: --- 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)