C++ (Cpp) sdev_get_vtor Exemples

Exemple #1

Fichier : sdev_ptsops.c Projet : andreiw/polaris

/*
 * Clean pts sdev_nodes that are no longer valid.
 */
static void
devpts_prunedir(struct sdev_node *ddv)
{
	struct vnode *vp;
	struct sdev_node *dv, *next = NULL;
	int (*vtor)(struct sdev_node *) = NULL;

	ASSERT(ddv->sdev_flags & SDEV_VTOR);

	vtor = (int (*)(struct sdev_node *))sdev_get_vtor(ddv);
	ASSERT(vtor);

	if (rw_tryupgrade(&ddv->sdev_contents) == NULL) {
		rw_exit(&ddv->sdev_contents);
		rw_enter(&ddv->sdev_contents, RW_WRITER);
	}

	for (dv = ddv->sdev_dot; dv; dv = next) {
		next = dv->sdev_next;

		/* skip stale nodes */
		if (dv->sdev_flags & SDEV_STALE)
			continue;

		/* validate and prune only ready nodes */
		if (dv->sdev_state != SDEV_READY)
			continue;

		switch (vtor(dv)) {
		case SDEV_VTOR_VALID:
		case SDEV_VTOR_SKIP:
			continue;
		case SDEV_VTOR_INVALID:
			sdcmn_err7(("prunedir: destroy invalid "
			    "node: %s(%p)\n", dv->sdev_name, (void *)dv));
			break;
		}
		vp = SDEVTOV(dv);
		if (vp->v_count > 0)
			continue;
		SDEV_HOLD(dv);
		/* remove the cache node */
		(void) sdev_cache_update(ddv, &dv, dv->sdev_name,
		    SDEV_CACHE_DELETE);
	}
	rw_downgrade(&ddv->sdev_contents);
}

Exemple #2

Fichier : sdev_vtops.c Projet : apprisi/illumos-gate

/*
 * First step in refreshing directory contents.
 * Remove each invalid entry and rebuild the link
 * reference for each stale entry.
 */
static void
devvt_prunedir(struct sdev_node *ddv)
{
	struct vnode *vp;
	struct sdev_node *dv, *next = NULL;
	int (*vtor)(struct sdev_node *) = NULL;

	ASSERT(ddv->sdev_flags & SDEV_VTOR);

	vtor = (int (*)(struct sdev_node *))sdev_get_vtor(ddv);
	ASSERT(vtor);

	for (dv = SDEV_FIRST_ENTRY(ddv); dv; dv = next) {
		next = SDEV_NEXT_ENTRY(ddv, dv);

		switch (vtor(dv)) {
		case SDEV_VTOR_VALID:
			break;
		case SDEV_VTOR_SKIP:
			break;
		case SDEV_VTOR_INVALID:
			vp = SDEVTOV(dv);
			if (vp->v_count != 0)
				break;
			/* remove the cached node */
			SDEV_HOLD(dv);
			(void) sdev_cache_update(ddv, &dv,
			    dv->sdev_name, SDEV_CACHE_DELETE);
			SDEV_RELE(dv);
			break;
		case SDEV_VTOR_STALE:
			devvt_rebuild_stale_link(ddv, dv);
			break;
		}
	}
}