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authorIngo Molnar <mingo@kernel.org>2015-08-12 11:44:30 +0200
committerIngo Molnar <mingo@kernel.org>2015-08-12 11:44:30 +0200
commitf52609fdabb1c726f8b9fdf64df3161781aa186e (patch)
tree3b7d4a47505eddb097bab848a8ffdc4bbbf79bb7 /include/linux
parent20f9ed1568c00bbd9e6af31341d25e06bc3d4a16 (diff)
parent41b9e9fcc1c44b84a785115058ce9c703e3fca6e (diff)
downloadcachepc-linux-f52609fdabb1c726f8b9fdf64df3161781aa186e.tar.gz
cachepc-linux-f52609fdabb1c726f8b9fdf64df3161781aa186e.zip
Merge branch 'locking/arch-atomic' into locking/core, because it's ready for upstream
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/atomic.h38
1 files changed, 25 insertions, 13 deletions
diff --git a/include/linux/atomic.h b/include/linux/atomic.h
index 5b08a8540ecf..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
@@ -111,21 +128,16 @@ static inline int atomic_dec_if_positive(atomic_t *v)
}
#endif
-#ifndef CONFIG_ARCH_HAS_ATOMIC_OR
-static inline void atomic_or(int i, atomic_t *v)
-{
- int old;
- int new;
-
- do {
- old = atomic_read(v);
- new = old | i;
- } while (atomic_cmpxchg(v, old, new) != old);
-}
-#endif /* #ifndef CONFIG_ARCH_HAS_ATOMIC_OR */
-
#include <asm-generic/atomic-long.h>
#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 */