/*ARGSUSED*/
static void
autofs_zone_destructor(zoneid_t zoneid, void *arg)
{
struct autofs_globals *fngp = arg;
vnode_t *vp;
if (fngp == NULL)
return;
ASSERT(fngp->fng_fnnode_count == 1);
ASSERT(fngp->fng_unmount_threads == 0);
/*
* vn_alloc() initialized the rootnode with a count of 1; we need to
* make this 0 to placate auto_freefnnode().
*/
vp = fntovn(fngp->fng_rootfnnodep);
ASSERT(vp->v_count == 1);
vp->v_count--;
auto_freefnnode(fngp->fng_rootfnnodep);
mutex_destroy(&fngp->fng_unmount_threads_lock);
kmem_free(fngp, sizeof (*fngp));
}
/* ARGSUSED */
static void
auto_inactive(vnode_t *vp, cred_t *cred, caller_context_t *ct)
{
fnnode_t *fnp = vntofn(vp);
fnnode_t *dfnp = fnp->fn_parent;
int count;
AUTOFS_DPRINT((4, "auto_inactive: vp=%p v_count=%u fn_link=%d\n",
(void *)vp, vp->v_count, fnp->fn_linkcnt));
/*
* The rwlock should not be already held by this thread.
* The assert relies on the fact that the owner field is cleared
* when the lock is released.
*/
ASSERT(dfnp != NULL);
ASSERT(rw_owner(&dfnp->fn_rwlock) != curthread);
rw_enter(&dfnp->fn_rwlock, RW_WRITER);
mutex_enter(&vp->v_lock);
ASSERT(vp->v_count > 0);
count = --vp->v_count;
mutex_exit(&vp->v_lock);
if (count == 0) {
/*
* Free only if node has no subdirectories.
*/
if (fnp->fn_linkcnt == 1) {
auto_disconnect(dfnp, fnp);
rw_exit(&dfnp->fn_rwlock);
auto_freefnnode(fnp);
AUTOFS_DPRINT((5, "auto_inactive: (exit) vp=%p freed\n",
(void *)vp));
return;
}
}
rw_exit(&dfnp->fn_rwlock);
AUTOFS_DPRINT((5, "auto_inactive: (exit) vp=%p v_count=%u fn_link=%d\n",
(void *)vp, vp->v_count, fnp->fn_linkcnt));
}
