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authorPeter Zijlstra <peterz@infradead.org>2015-04-24 01:12:32 +0200
committerThomas Gleixner <tglx@linutronix.de>2015-07-27 14:06:24 +0200
commitde9e432cb5de1bf2952919dc0b22e4bec0ed8d53 (patch)
treef67d751e7d52f45279950f2a7594d7a2ff5a0bbd /include/linux/atomic.h
parente6942b7de2dfe44ebde9bae57dadece5abca9de8 (diff)
atomic: Collapse all atomic_{set,clear}_mask definitions
Move the now generic definitions of atomic_{set,clear}_mask() into linux/atomic.h to avoid endless and pointless repetition. Also, provide an atomic_andnot() wrapper for those few archs that can implement that. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/atomic.h')
-rw-r--r--include/linux/atomic.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/include/linux/atomic.h b/include/linux/atomic.h
index 7d6279012a1f..8b98b423388f 100644
--- a/include/linux/atomic.h
+++ b/include/linux/atomic.h
@@ -28,6 +28,23 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u)
#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
#endif
+#ifndef atomic_andnot
+static inline void atomic_andnot(int i, atomic_t *v)
+{
+ atomic_and(~i, v);
+}
+#endif
+
+static inline __deprecated void atomic_clear_mask(unsigned int mask, atomic_t *v)
+{
+ atomic_andnot(mask, v);
+}
+
+static inline __deprecated void atomic_set_mask(unsigned int mask, atomic_t *v)
+{
+ atomic_or(mask, v);
+}
+
/**
* atomic_inc_not_zero_hint - increment if not null
* @v: pointer of type atomic_t
@@ -115,4 +132,12 @@ static inline int atomic_dec_if_positive(atomic_t *v)
#ifdef CONFIG_GENERIC_ATOMIC64
#include <asm-generic/atomic64.h>
#endif
+
+#ifndef atomic64_andnot
+static inline void atomic64_andnot(long long i, atomic64_t *v)
+{
+ atomic64_and(~i, v);
+}
+#endif
+
#endif /* _LINUX_ATOMIC_H */