From 5fd7a09cfb8c6852f596c1f8c891c6158395250e Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Tue, 11 Aug 2015 18:03:23 +0200
Subject: atomic: Export fetch_or()

Export fetch_or() that's implemented and used internally by the
scheduler. We are going to use it for NO_HZ so make it generally
available.

Reviewed-by: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Luiz Capitulino <lcapitulino@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
---
 kernel/sched/core.c | 14 --------------
 1 file changed, 14 deletions(-)

(limited to 'kernel/sched')

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 9503d590e5ef..7142feb4b92d 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -453,20 +453,6 @@ static inline void init_hrtick(void)
 }
 #endif	/* CONFIG_SCHED_HRTICK */
 
-/*
- * cmpxchg based fetch_or, macro so it works for different integer types
- */
-#define fetch_or(ptr, val)						\
-({	typeof(*(ptr)) __old, __val = *(ptr);				\
- 	for (;;) {							\
- 		__old = cmpxchg((ptr), __val, __val | (val));		\
- 		if (__old == __val)					\
- 			break;						\
- 		__val = __old;						\
- 	}								\
- 	__old;								\
-})
-
 #if defined(CONFIG_SMP) && defined(TIF_POLLING_NRFLAG)
 /*
  * Atomically set TIF_NEED_RESCHED and test for TIF_POLLING_NRFLAG,
-- 
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