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| author | Hrvoje Zeba <zeba.hrvoje@gmail.com> | 2019-07-10 20:46:16 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-07-10 20:46:16 -0600 |
| commit | 93f3e8d511e53133a4367afe04b5f256073082a0 (patch) | |
| tree | b6097b19e6b01afee73f091f0673648e61b12410 | |
| parent | 78cafaa71d747b0e128bcefe933adb4d661702dc (diff) | |
Use __typeof() instead of typeof()
typeof() is not available on all compilers. __typeof() is
a safer bet.
Signed-off-by: Hrvoje Zeba <zeba.hrvoje@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | src/barrier.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/barrier.h b/src/barrier.h index e079cf6..98be9e5 100644 --- a/src/barrier.h +++ b/src/barrier.h @@ -27,8 +27,8 @@ after the acquire operation executes. This is implemented using /* From tools/virtio/linux/compiler.h */ #define WRITE_ONCE(var, val) \ - (*((volatile typeof(val) *)(&(var))) = (val)) -#define READ_ONCE(var) (*((volatile typeof(var) *)(&(var)))) + (*((volatile __typeof(val) *)(&(var))) = (val)) +#define READ_ONCE(var) (*((volatile __typeof(var) *)(&(var)))) #if defined(__x86_64__) || defined(__i386__) @@ -52,7 +52,7 @@ do { \ #define smp_load_acquire(p) \ ({ \ - typeof(*p) ___p1 = READ_ONCE(*(p)); \ + __typeof(*p) ___p1 = READ_ONCE(*(p)); \ barrier(); \ ___p1; \ }) @@ -78,7 +78,7 @@ do { \ #ifndef smp_load_acquire # define smp_load_acquire(p) \ ({ \ - typeof(*p) ___p1 = READ_ONCE(*p); \ + __typeof(*p) ___p1 = READ_ONCE(*p); \ smp_mb(); \ ___p1; \ }) |