diff options
author | Anton Blanchard <anton@samba.org> | 2010-05-17 04:33:53 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-17 14:57:27 (GMT) |
commit | f3d46f9d3194e0329216002a8724d4c0957abc79 (patch) | |
tree | 6d9413e4a448d7b8d342c40297c4fbe0b9c4c2f0 /include/asm-generic | |
parent | e40152ee1e1c7a63f4777791863215e3faa37a86 (diff) | |
download | linux-fsl-qoriq-f3d46f9d3194e0329216002a8724d4c0957abc79.tar.xz |
atomic_t: Cast to volatile when accessing atomic variables
In preparation for removing volatile from the atomic_t definition, this
patch adds a volatile cast to all the atomic read functions.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-generic')
-rw-r--r-- | include/asm-generic/atomic.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h index c99c64d..c33749f 100644 --- a/include/asm-generic/atomic.h +++ b/include/asm-generic/atomic.h @@ -33,7 +33,7 @@ * Atomically reads the value of @v. Note that the guaranteed * useful range of an atomic_t is only 24 bits. */ -#define atomic_read(v) ((v)->counter) +#define atomic_read(v) (*(volatile int *)&(v)->counter) /** * atomic_set - set atomic variable |