static int _unlock_resource(const char *resource, int lockid)
{
struct lock *lck;
if (lockid < 0) {
DEBUGLOG("Not tracking unlock of lockid -1: %s, lockid=%d\n",
resource, lockid);
return 0;
}
DEBUGLOG("Unlocking resource %s, lockid=%d\n", resource, lockid);
pthread_mutex_lock(&_lock_mutex);
if (!(lck = dm_hash_lookup(_locks, resource))) {
pthread_mutex_unlock(&_lock_mutex);
DEBUGLOG("Resource %s, lockid=%d is not locked.\n", resource, lockid);
return 1;
}
if (lck->lockid != lockid) {
pthread_mutex_unlock(&_lock_mutex);
DEBUGLOG("Resource %s has wrong lockid %d, expected %d.\n",
resource, lck->lockid, lockid);
return 1;
}
dm_hash_remove(_locks, resource);
dm_free(lck);
pthread_cond_broadcast(&_lock_cond); /* wakeup waiters */
pthread_mutex_unlock(&_lock_mutex);
return 0;
}
static void remove_info(const char *resource)
{
int num_open;
pthread_mutex_lock(&lv_hash_lock);
dm_hash_remove(lv_hash, resource);
/* When last lock is remove, validate there are not left opened devices */
if (!dm_hash_get_first(lv_hash)) {
if (critical_section())
log_error(INTERNAL_ERROR "No volumes are locked however clvmd is in activation mode critical section.");
if ((num_open = dev_cache_check_for_open_devices()))
log_error(INTERNAL_ERROR "No volumes are locked however %d devices are still open.", num_open);
}
pthread_mutex_unlock(&lv_hash_lock);
}
static void remove_info(const char *resource)
{
pthread_mutex_lock(&lv_hash_lock);
dm_hash_remove(lv_hash, resource);
pthread_mutex_unlock(&lv_hash_lock);
}
