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/*
Copyright (C) 1999 Free Software Foundation, Inc.
Written by Thomas Bushnell, BSG.
This file is part of the GNU Hurd.
The GNU Hurd is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
The GNU Hurd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA. */
#include "priv.h"
/* Add a hard reference to a node. If there were no hard
references previously, then the node cannot be locked
(because you must hold a hard reference to hold the lock). */
void
diskfs_nref (struct node *np)
{
int new_hardref;
pthread_spin_lock (&diskfs_node_refcnt_lock);
np->references++;
new_hardref = (np->references == 1);
pthread_spin_unlock (&diskfs_node_refcnt_lock);
if (new_hardref)
{
pthread_mutex_lock (&np->lock);
diskfs_new_hardrefs (np);
pthread_mutex_unlock (&np->lock);
}
}
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