| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * Copyright (c) 2011 RedHat, Inc. |
| * All Rights Reserved. |
| */ |
| #ifndef __ATOMIC_H__ |
| #define __ATOMIC_H__ |
| |
| /* |
| * Warning: These are not really atomic at all. They are wrappers around the |
| * kernel atomic variable interface. If we do need these variables to be atomic |
| * (due to multithreading of the code that uses them) we need to add some |
| * pthreads magic here. |
| */ |
| typedef int32_t atomic_t; |
| typedef int64_t atomic64_t; |
| |
| #define atomic_inc_return(x) (++(*(x))) |
| #define atomic_dec_return(x) (--(*(x))) |
| |
| #define atomic64_read(x) *(x) |
| #define atomic64_set(x, v) (*(x) = v) |
| #define atomic64_inc(x) atomic_inc_return(x) |
| #define atomic64_dec(x) atomic_dec_return(x) |
| #define atomic64_add(v, x) (*(x) += (v)) |
| |
| #endif /* __ATOMIC_H__ */ |
