Release 4.11 fs/9p/vfs_dentry.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/inet.h>
#include <linux/namei.h>
#include <linux/idr.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <net/9p/9p.h>
#include <net/9p/client.h>
#include "v9fs.h"
#include "v9fs_vfs.h"
#include "fid.h"
/**
* v9fs_cached_dentry_delete - called when dentry refcount equals 0
* @dentry: dentry in question
*
*/
static int v9fs_cached_dentry_delete(const struct dentry *dentry)
{
p9_debug(P9_DEBUG_VFS, " dentry: %pd (%p)\n",
dentry, dentry);
/* Don't cache negative dentries */
if (d_really_is_negative(dentry))
return 1;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Eric Van Hensbergen | 28 | 75.68% | 1 | 14.29% |
| David Howells | 3 | 8.11% | 1 | 14.29% |
| Aneesh Kumar K.V | 2 | 5.41% | 1 | 14.29% |
| Joe Perches | 1 | 2.70% | 1 | 14.29% |
| Latchesar Ionkov | 1 | 2.70% | 1 | 14.29% |
| Nicholas Piggin | 1 | 2.70% | 1 | 14.29% |
| Al Viro | 1 | 2.70% | 1 | 14.29% |
| Total | 37 | 100.00% | 7 | 100.00% |
/**
* v9fs_dentry_release - called when dentry is going to be freed
* @dentry: dentry that is being release
*
*/
static void v9fs_dentry_release(struct dentry *dentry)
{
struct hlist_node *p, *n;
p9_debug(P9_DEBUG_VFS, " dentry: %pd (%p)\n",
dentry, dentry);
hlist_for_each_safe(p, n, (struct hlist_head *)&dentry->d_fsdata)
p9_client_clunk(hlist_entry(p, struct p9_fid, dlist));
dentry->d_fsdata = NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Eric Van Hensbergen | 29 | 50.88% | 1 | 14.29% |
| Al Viro | 20 | 35.09% | 4 | 57.14% |
| Latchesar Ionkov | 7 | 12.28% | 1 | 14.29% |
| Joe Perches | 1 | 1.75% | 1 | 14.29% |
| Total | 57 | 100.00% | 7 | 100.00% |
static int v9fs_lookup_revalidate(struct dentry *dentry, unsigned int flags)
{
struct p9_fid *fid;
struct inode *inode;
struct v9fs_inode *v9inode;
if (flags & LOOKUP_RCU)
return -ECHILD;
inode = d_inode(dentry);
if (!inode)
goto out_valid;
v9inode = V9FS_I(inode);
if (v9inode->cache_validity & V9FS_INO_INVALID_ATTR) {
int retval;
struct v9fs_session_info *v9ses;
fid = v9fs_fid_lookup(dentry);
if (IS_ERR(fid))
return PTR_ERR(fid);
v9ses = v9fs_inode2v9ses(inode);
if (v9fs_proto_dotl(v9ses))
retval = v9fs_refresh_inode_dotl(fid, inode);
else
retval = v9fs_refresh_inode(fid, inode);
if (retval == -ENOENT)
return 0;
if (retval < 0)
return retval;
}
out_valid:
return 1;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Aneesh Kumar K.V | 151 | 96.18% | 2 | 50.00% |
| Al Viro | 3 | 1.91% | 1 | 25.00% |
| David Howells | 3 | 1.91% | 1 | 25.00% |
| Total | 157 | 100.00% | 4 | 100.00% |
const struct dentry_operations v9fs_cached_dentry_operations = {
.d_revalidate = v9fs_lookup_revalidate,
.d_weak_revalidate = v9fs_lookup_revalidate,
.d_delete = v9fs_cached_dentry_delete,
.d_release = v9fs_dentry_release,
};
const struct dentry_operations v9fs_dentry_operations = {
.d_delete = always_delete_dentry,
.d_release = v9fs_dentry_release,
};
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Aneesh Kumar K.V | 159 | 45.56% | 3 | 14.29% |
| Eric Van Hensbergen | 132 | 37.82% | 4 | 19.05% |
| Al Viro | 27 | 7.74% | 7 | 33.33% |
| Latchesar Ionkov | 11 | 3.15% | 1 | 4.76% |
| David Howells | 6 | 1.72% | 1 | 4.76% |
| Jeff Layton | 5 | 1.43% | 1 | 4.76% |
| Alexey Dobriyan | 3 | 0.86% | 1 | 4.76% |
| Tejun Heo | 3 | 0.86% | 1 | 4.76% |
| Joe Perches | 2 | 0.57% | 1 | 4.76% |
| Nicholas Piggin | 1 | 0.29% | 1 | 4.76% |
| Total | 349 | 100.00% | 21 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.