diff options
| author | Shaun Ruffell <sruffell@digium.com> | 2011-01-21 05:32:31 +0000 |
|---|---|---|
| committer | Shaun Ruffell <sruffell@digium.com> | 2011-01-21 05:32:31 +0000 |
| commit | e97c21411eebba552a83f02bc99ed6c7dfbfdf57 (patch) | |
| tree | 8bdb4634b8805cc2c72aba5086698a818e99bf79 | |
| parent | dce323aeb783d82ec081bf063a944a5654de0be9 (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>
Origin: http://svnview.digium.com/svn/dahdi?view=rev&rev=9579
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/branches/2.4@9690 a0bf4364-ded3-4de4-8d8a-66a801d63aff
| -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 1eccfbf..27ab02b 100644 --- a/include/dahdi/kernel.h +++ b/include/dahdi/kernel.h @@ -1267,6 +1267,12 @@ 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 |