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[Qemu-devel] [PATCH] atomic.h: Use __atomic_load_n() for acquire
From: |
Pranith Kumar |
Subject: |
[Qemu-devel] [PATCH] atomic.h: Use __atomic_load_n() for acquire |
Date: |
Tue, 1 Nov 2016 10:33:03 -0400 |
We can use __atomic_load_n() saving a store and load from the _val.
Signed-off-by: Pranith Kumar <address@hidden>
---
include/qemu/atomic.h | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/include/qemu/atomic.h b/include/qemu/atomic.h
index 878fa07..6775603 100644
--- a/include/qemu/atomic.h
+++ b/include/qemu/atomic.h
@@ -144,9 +144,7 @@
#define atomic_load_acquire(ptr) \
({ \
QEMU_BUILD_BUG_ON(sizeof(*ptr) > sizeof(void *)); \
- typeof_strip_qual(*ptr) _val; \
- __atomic_load(ptr, &_val, __ATOMIC_ACQUIRE); \
- _val; \
+ __atomic_load_n(ptr, __ATOMIC_ACQUIRE); \
})
#define atomic_store_release(ptr, i) do { \
--
2.10.2
- [Qemu-devel] [PATCH] atomic.h: Use __atomic_load_n() for acquire,
Pranith Kumar <=