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atomic_t: Cast to volatile when accessing atomic variables

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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 <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Anton Blanchard 2010-05-17 14:33:53 +10:00 • committed by Linus Torvalds
commit f3d46f9d31
20 changed files with 25 additions and 25 deletions
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2
arch/xtensa/include/asm/atomic.h
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@ -46,7 +46,7 @@
*
* Atomically reads the value of @v.
*/
#define atomic_read(v) ((v)->counter)
#define atomic_read(v) (*(volatile int *)&(v)->counter)
/**
* atomic_set - set atomic variable