1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * QNX6 file system, Linux implementation.
 4 *
 5 * Version : 1.0.0
 6 *
 7 * History :
 8 *
 9 * 01-02-2012 by Kai Bankett (chaosman@ontika.net) : first release.
10 * 16-02-2012 pagemap extension by Al Viro
11 *
12 */
13
14#include "qnx6.h"
15
16struct dentry *qnx6_lookup(struct inode *dir, struct dentry *dentry,
17				unsigned int flags)
18{
19	unsigned ino;
20	struct page *page;
21	struct inode *foundinode = NULL;
22	const char *name = dentry->d_name.name;
23	int len = dentry->d_name.len;
24
25	if (len > QNX6_LONG_NAME_MAX)
26		return ERR_PTR(-ENAMETOOLONG);
27
28	ino = qnx6_find_entry(len, dir, name, &page);
29	if (ino) {
30		foundinode = qnx6_iget(dir->i_sb, ino);
31		qnx6_put_page(page);
32		if (IS_ERR(foundinode))
33			pr_debug("lookup->iget ->  error %ld\n",
34				 PTR_ERR(foundinode));
 
 
35	} else {
36		pr_debug("%s(): not found %s\n", __func__, name);
 
37	}
38	return d_splice_alias(foundinode, dentry);
 
39}

 
 1/*
 2 * QNX6 file system, Linux implementation.
 3 *
 4 * Version : 1.0.0
 5 *
 6 * History :
 7 *
 8 * 01-02-2012 by Kai Bankett (chaosman@ontika.net) : first release.
 9 * 16-02-2012 pagemap extension by Al Viro
10 *
11 */
12
13#include "qnx6.h"
14
15struct dentry *qnx6_lookup(struct inode *dir, struct dentry *dentry,
16				unsigned int flags)
17{
18	unsigned ino;
19	struct page *page;
20	struct inode *foundinode = NULL;
21	const char *name = dentry->d_name.name;
22	int len = dentry->d_name.len;
23
24	if (len > QNX6_LONG_NAME_MAX)
25		return ERR_PTR(-ENAMETOOLONG);
26
27	ino = qnx6_find_entry(len, dir, name, &page);
28	if (ino) {
29		foundinode = qnx6_iget(dir->i_sb, ino);
30		qnx6_put_page(page);
31		if (IS_ERR(foundinode)) {
32			QNX6DEBUG((KERN_ERR "qnx6: lookup->iget -> "
33				" error %ld\n", PTR_ERR(foundinode)));
34			return ERR_CAST(foundinode);
35		}
36	} else {
37		QNX6DEBUG((KERN_INFO "qnx6_lookup: not found %s\n", name));
38		return NULL;
39	}
40	d_add(dentry, foundinode);
41	return NULL;
42}