projects / lttng-modules.git / blame
| Commit | Line | Data |
|---|---|---|
| 505fb410 MD |
1 | #ifndef _LTTNG_WRAPPER_ATOMIC_H |
| 2 | #define _LTTNG_WRAPPER_ATOMIC_H | |
| 3 | ||
| 4 | /* | |
| 5 | * wrapper/atomic.h | |
| 6 | * | |
| 7 | * wrapper around linux/atomic.h. | |
| 8 | * | |
| 9 | * Copyright (C) 2014 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
| 10 | * | |
| 11 | * This library is free software; you can redistribute it and/or | |
| 12 | * modify it under the terms of the GNU Lesser General Public | |
| 13 | * License as published by the Free Software Foundation; only | |
| 14 | * version 2.1 of the License. | |
| 15 | * | |
| 16 | * This library is distributed in the hope that it will be useful, | |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 19 | * Lesser General Public License for more details. | |
| 20 | * | |
| 21 | * You should have received a copy of the GNU Lesser General Public | |
| 22 | * License along with this library; if not, write to the Free Software | |
| 23 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 24 | */ | |
| 25 | ||
| 26 | #include <linux/version.h> | |
| 2a8a8231 | 27 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)) |
| 505fb410 | 28 | #include <linux/atomic.h> |
| 2a8a8231 MD |
29 | #else |
| 30 | #include <asm/atomic.h> | |
| 31 | #endif | |
| 505fb410 MD |
32 | |
| 33 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,16,0)) | |
| 34 | static inline void lttng_smp_mb__before_atomic(void) | |
| 35 | { | |
| 36 | smp_mb__before_atomic(); | |
| 37 | } | |
| 38 | ||
| 39 | static inline void lttng_smp_mb__after_atomic(void) | |
| 40 | { | |
| 41 | smp_mb__after_atomic(); | |
| 42 | } | |
| 43 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,16,0)) */ | |
| 44 | static inline void lttng_smp_mb__before_atomic(void) | |
| 45 | { | |
| 46 | smp_mb__before_atomic_inc(); | |
| 47 | } | |
| 48 | ||
| 49 | static inline void lttng_smp_mb__after_atomic(void) | |
| 50 | { | |
| 51 | smp_mb__after_atomic_inc(); | |
| 52 | } | |
| 53 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,16,0)) */ | |
| 54 | ||
| 55 | #endif /* _LTTNG_WRAPPER_ATOMIC_H */ |