linux-hardened/fs/9p/vfs_dentry.c
Eric Van Hensbergen 42e8c509cf [PATCH] v9fs: update license boilerplate
Update license boilerplate to specify GPLv2 and remove the (at your option
clause).  This change was agreed to by all the copyright holders (approvals
can be found on v9fs-developer mailing list).

Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:54 -08:00

93 lines
2.4 KiB
C

/*
* 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/smp_lock.h>
#include <linux/inet.h>
#include <linux/namei.h>
#include <linux/idr.h>
#include "debug.h"
#include "v9fs.h"
#include "9p.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)
{
dprintk(DEBUG_VFS, " dentry: %s (%p)\n", dentry->d_iname, dentry);
return 1;
}
/**
* v9fs_dentry_release - called when dentry is going to be freed
* @dentry: dentry that is being release
*
*/
void v9fs_dentry_release(struct dentry *dentry)
{
int err;
dprintk(DEBUG_VFS, " dentry: %s (%p)\n", dentry->d_iname, dentry);
if (dentry->d_fsdata != NULL) {
struct list_head *fid_list = dentry->d_fsdata;
struct v9fs_fid *temp = NULL;
struct v9fs_fid *current_fid = NULL;
list_for_each_entry_safe(current_fid, temp, fid_list, list) {
err = v9fs_t_clunk(current_fid->v9ses, current_fid->fid);
if (err < 0)
dprintk(DEBUG_ERROR, "clunk failed: %d name %s\n",
err, dentry->d_iname);
v9fs_fid_destroy(current_fid);
}
kfree(dentry->d_fsdata); /* free the list_head */
}
}
struct dentry_operations v9fs_dentry_operations = {
.d_delete = v9fs_dentry_delete,
.d_release = v9fs_dentry_release,
};