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authorPeter Zijlstra <peterz@infradead.org>2014-04-23 21:32:50 +0400
committerThomas Gleixner <tglx@linutronix.de>2015-07-27 15:06:24 +0300
commite6942b7de2dfe44ebde9bae57dadece5abca9de8 (patch)
treeb235317c5f6d200bcc25b43a406237a0d15319cf /include/asm-generic
parent2957c035395e492463d7f589af9dd32388967bbb (diff)
downloadlinux-e6942b7de2dfe44ebde9bae57dadece5abca9de8.tar.xz
atomic: Provide atomic_{or,xor,and}
Implement atomic logic ops -- atomic_{or,xor,and}. These will replace the atomic_{set,clear}_mask functions that are available on some archs. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/asm-generic')
-rw-r--r--include/asm-generic/atomic.h21
-rw-r--r--include/asm-generic/atomic64.h4
2 files changed, 16 insertions, 9 deletions
diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h
index 92947e0a532a..a41b0b8f7404 100644
--- a/include/asm-generic/atomic.h
+++ b/include/asm-generic/atomic.h
@@ -102,24 +102,27 @@ ATOMIC_OP_RETURN(sub, -)
ATOMIC_OP(and, &)
#endif
-#ifndef atomic_clear_mask
-#define atomic_clear_mask(i, v) atomic_and(~(i), (v))
-#endif
-
#ifndef atomic_or
-#ifndef CONFIG_ARCH_HAS_ATOMIC_OR
-#define CONFIG_ARCH_HAS_ATOMIC_OR
-#endif
ATOMIC_OP(or, |)
#endif
-#ifndef atomic_set_mask
-#define atomic_set_mask(i, v) atomic_or((i), (v))
+#ifndef atomic_xor
+ATOMIC_OP(xor, ^)
#endif
#undef ATOMIC_OP_RETURN
#undef ATOMIC_OP
+static inline __deprecated void atomic_clear_mask(unsigned int mask, atomic_t *v)
+{
+ atomic_and(~mask, v);
+}
+
+static inline __deprecated void atomic_set_mask(unsigned int mask, atomic_t *v)
+{
+ atomic_or(mask, v);
+}
+
/*
* Atomic operations that C can't guarantee us. Useful for
* resource counting etc..
diff --git a/include/asm-generic/atomic64.h b/include/asm-generic/atomic64.h
index 30ad9c86cebb..d48e78ccad3d 100644
--- a/include/asm-generic/atomic64.h
+++ b/include/asm-generic/atomic64.h
@@ -32,6 +32,10 @@ extern long long atomic64_##op##_return(long long a, atomic64_t *v);
ATOMIC64_OPS(add)
ATOMIC64_OPS(sub)
+ATOMIC64_OP(and)
+ATOMIC64_OP(or)
+ATOMIC64_OP(xor)
+
#undef ATOMIC64_OPS
#undef ATOMIC64_OP_RETURN
#undef ATOMIC64_OP