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authorAnton Blanchard <anton@samba.org>2010-05-17 06:33:53 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-17 16:57:27 +0200
commitf3d46f9d3194e0329216002a8724d4c0957abc79 (patch)
tree6d9413e4a448d7b8d342c40297c4fbe0b9c4c2f0 /arch/mn10300/include
parentLinus 2.6.34 (diff)
downloadlinux-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.h2
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