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-rw-r--r--libdiskfs/node-nputl.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/libdiskfs/node-nputl.c b/libdiskfs/node-nputl.c
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+++ b/libdiskfs/node-nputl.c
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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"
+
+/* Unlock node NP and release a light reference */
+DISKFS_EI void
+diskfs_nput_light (struct node *np)
+{
+ spin_lock (&diskfs_node_refcnt_lock);
+ assert (np->light_references);
+ np->light_references--;
+ if (np->references + np->light_references == 0)
+ diskfs_drop_node (np);
+ else
+ {
+ spin_unlock (&diskfs_node_refcnt_lock);
+ mutex_unlock (&np->lock);
+ }
+}