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			pr_debug("lookup->iget ->  error %ld\n",
33				 PTR_ERR(foundinode));
34			return ERR_CAST(foundinode);
35		}
36	} else {
37		pr_debug("%s(): not found %s\n", __func__, name);
38		return NULL;
39	}
40	d_add(dentry, foundinode);
41	return NULL;
42}
43