void
pfs_purge(struct pfs_node *pn)
{
mtx_lock(&pfs_vncache_mutex);
pfs_purge_locked(pn);
mtx_unlock(&pfs_vncache_mutex);
}
/*
* Tear down vnode cache
*/
void
pfs_vncache_unload(void)
{
EVENTHANDLER_DEREGISTER(process_exit, pfs_exit_tag);
mtx_lock(&pfs_vncache_mutex);
pfs_purge_locked(NULL, true);
mtx_unlock(&pfs_vncache_mutex);
KASSERT(pfs_vncache_entries == 0,
("%d vncache entries remaining", pfs_vncache_entries));
mtx_destroy(&pfs_vncache_mutex);
}
/*
* Free all vnodes associated with a defunct process
*/
static void
pfs_exit(void *arg, struct proc *p)
{
struct pfs_vdata *pvd;
int dead;
if (pfs_vncache == NULL)
return;
mtx_lock(&pfs_vncache_mutex);
for (pvd = pfs_vncache, dead = 0; pvd != NULL; pvd = pvd->pvd_next)
if (pvd->pvd_pid == p->p_pid)
dead = pvd->pvd_dead = 1;
if (dead)
pfs_purge_locked(NULL);
mtx_unlock(&pfs_vncache_mutex);
}
