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authorlefranc2009-03-19 08:34:57 +0000
committerlefranc2009-03-19 08:34:57 +0000
commitade8df59a0d7d3ac394b61f3096b5963d18dcfcc (patch)
tree486cec51f00d138ab08352a6f5611f4a0323b1ca /cleopatre/linux-2.6.25.10-spc300/fs/9p/vfs_dentry.c
parenta49226f2d9f26b70584f3bea9388e2d753663c91 (diff)
[kernel] changed linux-2.6.25.10 to linux-2.6.25.10-spc300
[bundle] add bundle creation functionnality git-svn-id: svn+ssh://pessac/svn/cesar/trunk@4255 017c9cb6-072f-447c-8318-d5b54f68fe89
Diffstat (limited to 'cleopatre/linux-2.6.25.10-spc300/fs/9p/vfs_dentry.c')
-rw-r--r--cleopatre/linux-2.6.25.10-spc300/fs/9p/vfs_dentry.c112
1 files changed, 112 insertions, 0 deletions
diff --git a/cleopatre/linux-2.6.25.10-spc300/fs/9p/vfs_dentry.c b/cleopatre/linux-2.6.25.10-spc300/fs/9p/vfs_dentry.c
new file mode 100644
index 0000000000..f9534f18df
--- /dev/null
+++ b/cleopatre/linux-2.6.25.10-spc300/fs/9p/vfs_dentry.c
@@ -0,0 +1,112 @@
+/*
+ * linux/fs/9p/vfs_dentry.c
+ *
+ * This file contians vfs dentry ops for the 9P2000 protocol.
+ *
+ * Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com>
+ * Copyright (C) 2002 by Ron Minnich <rminnich@lanl.gov>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program 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:
+ * Free Software Foundation
+ * 51 Franklin Street, Fifth Floor
+ * Boston, MA 02111-1301 USA
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/pagemap.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/inet.h>
+#include <linux/namei.h>
+#include <linux/idr.h>
+#include <linux/sched.h>
+#include <net/9p/9p.h>
+#include <net/9p/client.h>
+
+#include "v9fs.h"
+#include "v9fs_vfs.h"
+#include "fid.h"
+
+/**
+ * v9fs_dentry_delete - called when dentry refcount equals 0
+ * @dentry: dentry in question
+ *
+ * By returning 1 here we should remove cacheing of unused
+ * dentry components.
+ *
+ */
+
+static int v9fs_dentry_delete(struct dentry *dentry)
+{
+ P9_DPRINTK(P9_DEBUG_VFS, " dentry: %s (%p)\n", dentry->d_iname, dentry);
+
+ return 1;
+}
+
+/**
+ * v9fs_cached_dentry_delete - called when dentry refcount equals 0
+ * @dentry: dentry in question
+ *
+ * Only return 1 if our inode is invalid. Only non-synthetic files
+ * (ones without mtime == 0) should be calling this function.
+ *
+ */
+
+static int v9fs_cached_dentry_delete(struct dentry *dentry)
+{
+ struct inode *inode = dentry->d_inode;
+ P9_DPRINTK(P9_DEBUG_VFS, " dentry: %s (%p)\n", dentry->d_iname, dentry);
+
+ if(!inode)
+ return 1;
+
+ return 0;
+}
+
+/**
+ * v9fs_dentry_release - called when dentry is going to be freed
+ * @dentry: dentry that is being release
+ *
+ */
+
+void v9fs_dentry_release(struct dentry *dentry)
+{
+ struct v9fs_dentry *dent;
+ struct p9_fid *temp, *current_fid;
+
+ P9_DPRINTK(P9_DEBUG_VFS, " dentry: %s (%p)\n", dentry->d_iname, dentry);
+ dent = dentry->d_fsdata;
+ if (dent) {
+ list_for_each_entry_safe(current_fid, temp, &dent->fidlist,
+ dlist) {
+ p9_client_clunk(current_fid);
+ }
+
+ kfree(dent);
+ dentry->d_fsdata = NULL;
+ }
+}
+
+struct dentry_operations v9fs_cached_dentry_operations = {
+ .d_delete = v9fs_cached_dentry_delete,
+ .d_release = v9fs_dentry_release,
+};
+
+struct dentry_operations v9fs_dentry_operations = {
+ .d_delete = v9fs_dentry_delete,
+ .d_release = v9fs_dentry_release,
+};