diff options
| author | Shaun Ruffell <sruffell@digium.com> | 2011-01-03 18:26:00 +0000 |
|---|---|---|
| committer | Shaun Ruffell <sruffell@digium.com> | 2011-01-03 18:26:00 +0000 |
| commit | 86c499abc449e02735cd9539254ac363773d2f7d (patch) | |
| tree | c4d7a84a7b84681477fb00518dab7f3de737e6e6 /include | |
| parent | 0c409bba72005ca55ee5ed602e0f81d856bfe352 (diff) | |
dahdi: If mutexes are not available use semaphores instead.
Mutexes were added in 2.6.16. This will allow future changes to use the
mutex API without breaking on pre 2.6.16 kernels.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9579 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Diffstat (limited to 'include')
| -rw-r--r-- | include/dahdi/kernel.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/dahdi/kernel.h b/include/dahdi/kernel.h index ce503d9..584eb8c 100644 --- a/include/dahdi/kernel.h +++ b/include/dahdi/kernel.h @@ -1317,6 +1317,12 @@ wait_for_completion_interruptible_timeout(struct completion *x, struct semaphore name = __SEMAPHORE_INITIALIZER(name, 1) #endif +#ifndef DEFINE_MUTEX +#define DEFINE_MUTEX DEFINE_SEMAPHORE +#define mutex_lock(_x) down(_x) +#define mutex_unlock(_x) up(_x) +#endif + #ifndef DMA_BIT_MASK #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) #endif |