void
afs_mutex_init(afs_kmutex_t * l)
{
-#if defined(AFS_LINUX24_ENV)
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
+ mutex_init(&l->mutex);
+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
init_MUTEX(&l->sem);
#else
l->sem = MUTEX;
void
afs_mutex_enter(afs_kmutex_t * l)
{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
+ mutex_lock(&l->mutex);
+#else
down(&l->sem);
+#endif
if (l->owner)
osi_Panic("mutex_enter: 0x%x held by %d", l, l->owner);
l->owner = current->pid;
int
afs_mutex_tryenter(afs_kmutex_t * l)
{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
+ if (mutex_trylock(&l->mutex) == 0)
+#else
if (down_trylock(&l->sem))
+#endif
return 0;
l->owner = current->pid;
return 1;
if (l->owner != current->pid)
osi_Panic("mutex_exit: 0x%x held by %d", l, l->owner);
l->owner = 0;
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
+ mutex_unlock(&l->mutex);
+#else
up(&l->sem);
+#endif
}
/* CV_WAIT and CV_TIMEDWAIT sleep until the specified event occurs, or, in the
while(seq == cv->seq) {
schedule();
- /* should we refrigerate? */
+#ifdef AFS_LINUX26_ENV
+#ifdef CONFIG_PM
+ if (
+#ifdef PF_FREEZE
+ current->flags & PF_FREEZE
+#else
+ !current->todo
+#endif
+ )
+#ifdef LINUX_REFRIGERATOR_TAKES_PF_FREEZE
+ refrigerator(PF_FREEZE);
+#else
+ refrigerator();
+#endif
+ set_current_state(TASK_INTERRUPTIBLE);
+#endif
+#endif
}
remove_wait_queue(&cv->waitq, &wait);