Contributors: 15
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Aneesh Kumar K.V |
130 |
34.30% |
5 |
15.15% |
| Eric Van Hensbergen |
123 |
32.45% |
4 |
12.12% |
| Dominique Martinet |
40 |
10.55% |
3 |
9.09% |
| Al Viro |
26 |
6.86% |
7 |
21.21% |
| M. Mohan Kumar |
14 |
3.69% |
1 |
3.03% |
| Latchesar Ionkov |
14 |
3.69% |
2 |
6.06% |
| Sripathi Kodi |
7 |
1.85% |
1 |
3.03% |
| David Howells |
6 |
1.58% |
1 |
3.03% |
| Linus Torvalds (pre-git) |
5 |
1.32% |
3 |
9.09% |
| Jeff Layton |
5 |
1.32% |
1 |
3.03% |
| Jianyong Wu |
4 |
1.06% |
1 |
3.03% |
| Joe Perches |
2 |
0.53% |
1 |
3.03% |
| Nicholas Piggin |
1 |
0.26% |
1 |
3.03% |
| Thomas Gleixner |
1 |
0.26% |
1 |
3.03% |
| Linus Torvalds |
1 |
0.26% |
1 |
3.03% |
| Total |
379 |
|
33 |
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* 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>
*/
#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/namei.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;
}
/**
* 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;
struct hlist_head head;
p9_debug(P9_DEBUG_VFS, " dentry: %pd (%p)\n",
dentry, dentry);
spin_lock(&dentry->d_lock);
hlist_move_list((struct hlist_head *)&dentry->d_fsdata, &head);
spin_unlock(&dentry->d_lock);
hlist_for_each_safe(p, n, &head)
p9_fid_put(hlist_entry(p, struct p9_fid, dlist));
}
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);
p9_fid_put(fid);
if (retval == -ENOENT)
return 0;
if (retval < 0)
return retval;
}
out_valid:
return 1;
}
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,
};