blob: 8a97289e04ad18204537535f90e1ab85eae9ac2f [file] [log] [blame]
Kai Bankett5d026c72012-02-17 05:59:20 +01001/*
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 struct nameidata *nd)
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}