| 1 | #ifndef _LTTNG_WRAPPER_SPINLOCK_H |
| 2 | #define _LTTNG_WRAPPER_SPINLOCK_H |
| 3 | |
| 4 | /* |
| 5 | * wrapper/spinlock.h |
| 6 | * |
| 7 | * Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 8 | * |
| 9 | * This library is free software; you can redistribute it and/or |
| 10 | * modify it under the terms of the GNU Lesser General Public |
| 11 | * License as published by the Free Software Foundation; only |
| 12 | * version 2.1 of the License. |
| 13 | * |
| 14 | * This library is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 17 | * Lesser General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU Lesser General Public |
| 20 | * License along with this library; if not, write to the Free Software |
| 21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 22 | */ |
| 23 | |
| 24 | #include <linux/version.h> |
| 25 | |
| 26 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33)) |
| 27 | |
| 28 | #include <linux/string.h> |
| 29 | |
| 30 | #define raw_spin_lock_init(lock) \ |
| 31 | do { \ |
| 32 | raw_spinlock_t __lock = __RAW_SPIN_LOCK_UNLOCKED; \ |
| 33 | memcpy(lock, &__lock, sizeof(lock)); \ |
| 34 | } while (0) |
| 35 | |
| 36 | #define raw_spin_is_locked(lock) __raw_spin_is_locked(lock) |
| 37 | |
| 38 | #define wrapper_desc_spin_lock(lock) spin_lock(lock) |
| 39 | #define wrapper_desc_spin_unlock(lock) spin_unlock(lock) |
| 40 | |
| 41 | #else |
| 42 | |
| 43 | #define wrapper_desc_spin_lock(lock) raw_spin_lock(lock) |
| 44 | #define wrapper_desc_spin_unlock(lock) raw_spin_unlock(lock) |
| 45 | |
| 46 | #endif |
| 47 | #endif /* _LTTNG_WRAPPER_SPINLOCK_H */ |