C++ (Cpp) __dlm_lockres_has_locks Beispiele

Beispiel #1

Datei: dlmthread.c Projekt: MiniBlu/cm11_kernel_htc_msm8974a3ul

int __dlm_lockres_unused(struct dlm_lock_resource *res)
{
	int bit;

	assert_spin_locked(&res->spinlock);

	if (__dlm_lockres_has_locks(res))
		return 0;

	
	if (res->inflight_locks)
		return 0;

	if (!list_empty(&res->dirty) || res->state & DLM_LOCK_RES_DIRTY)
		return 0;

	if (res->state & DLM_LOCK_RES_RECOVERING)
		return 0;

	
	bit = find_next_bit(res->refmap, O2NM_MAX_NODES, 0);
	if (bit < O2NM_MAX_NODES)
		return 0;

	return 1;
}

Beispiel #2

Datei: dlmthread.c Projekt: openube/android_kernel_sony_c2305

/* "unused": the lockres has no locks, is not on the dirty list,
 * has no inflight locks (in the gap between mastery and acquiring
 * the first lock), and has no bits in its refmap.
 * truly ready to be freed. */
int __dlm_lockres_unused(struct dlm_lock_resource *res)
{
	int bit;

	assert_spin_locked(&res->spinlock);

	if (__dlm_lockres_has_locks(res))
		return 0;

	/* Locks are in the process of being created */
	if (res->inflight_locks)
		return 0;

	if (!list_empty(&res->dirty) || res->state & DLM_LOCK_RES_DIRTY)
		return 0;

	if (res->state & DLM_LOCK_RES_RECOVERING)
		return 0;

	/* Another node has this resource with this node as the master */
	bit = find_next_bit(res->refmap, O2NM_MAX_NODES, 0);
	if (bit < O2NM_MAX_NODES)
		return 0;

	return 1;
}

Beispiel #3

Datei: dlmthread.c Projekt: WiseMan787/ralink_sdk

/* "unused": the lockres has no locks, is not on the dirty list,
 * has no inflight locks (in the gap between mastery and acquiring
 * the first lock), and has no bits in its refmap.
 * truly ready to be freed. */
int __dlm_lockres_unused(struct dlm_lock_resource *res)
{
	if (!__dlm_lockres_has_locks(res) &&
	    (list_empty(&res->dirty) && !(res->state & DLM_LOCK_RES_DIRTY))) {
		/* try not to scan the bitmap unless the first two
		 * conditions are already true */
		int bit = find_next_bit(res->refmap, O2NM_MAX_NODES, 0);
		if (bit >= O2NM_MAX_NODES) {
			/* since the bit for dlm->node_num is not
			 * set, inflight_locks better be zero */
			BUG_ON(res->inflight_locks != 0);
			return 1;
		}
	}
	return 0;
}

Beispiel #4

Datei: dlmthread.c Projekt: flwh/Alcatel_OT_985_kernel

int __dlm_lockres_unused(struct dlm_lock_resource *res)
{
	int bit;

	if (__dlm_lockres_has_locks(res))
		return 0;

	if (!list_empty(&res->dirty) || res->state & DLM_LOCK_RES_DIRTY)
		return 0;

	if (res->state & DLM_LOCK_RES_RECOVERING)
		return 0;

	bit = find_next_bit(res->refmap, O2NM_MAX_NODES, 0);
	if (bit < O2NM_MAX_NODES)
		return 0;

	/*
	 * since the bit for dlm->node_num is not set, inflight_locks better
	 * be zero
	 */
	BUG_ON(res->inflight_locks != 0);
	return 1;
}