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atomic: fix position of volatile qualifier 

What needs to be volatile is not the pointer, but the pointed-to
value!

Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 2cbcfb281a)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
This commit is contained in:
Paolo Bonzini 2014-11-04 14:35:28 +01:00 committed by Michael Roth
parent ff2fff6211
commit 6df8cd2e27
1 changed files with 2 additions and 2 deletions
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4
include/qemu/atomic.h
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@ -122,11 +122,11 @@
#endif #endif
#ifndef atomic_read #ifndef atomic_read
#define atomic_read(ptr) (*(__typeof__(*ptr) *volatile) (ptr)) #define atomic_read(ptr) (*(__typeof__(*ptr) volatile*) (ptr))
#endif #endif
#ifndef atomic_set #ifndef atomic_set
#define atomic_set(ptr, i) ((*(__typeof__(*ptr) *volatile) (ptr)) = (i)) #define atomic_set(ptr, i) ((*(__typeof__(*ptr) volatile*) (ptr)) = (i))
#endif #endif
/* These have the same semantics as Java volatile variables. /* These have the same semantics as Java volatile variables.