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author | Anton Blanchard <anton@samba.org> | 2010-05-17 06:33:53 +0200 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-17 16:57:27 +0200 |
commit | f3d46f9d3194e0329216002a8724d4c0957abc79 (patch) | |
tree | 6d9413e4a448d7b8d342c40297c4fbe0b9c4c2f0 /arch/mn10300/include | |
parent | Linus 2.6.34 (diff) | |
download | linux-f3d46f9d3194e0329216002a8724d4c0957abc79.tar.xz linux-f3d46f9d3194e0329216002a8724d4c0957abc79.zip |
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 'arch/mn10300/include')
-rw-r--r-- | arch/mn10300/include/asm/atomic.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mn10300/include/asm/atomic.h b/arch/mn10300/include/asm/atomic.h index 5bf5be9566de..e41222d6c2fd 100644 --- a/arch/mn10300/include/asm/atomic.h +++ b/arch/mn10300/include/asm/atomic.h @@ -31,7 +31,7 @@ * 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 |