1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * QNX6 file system, Linux implementation.
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Version : 1.0.0
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * History :
8*4882a593Smuzhiyun *
9*4882a593Smuzhiyun * 01-02-2012 by Kai Bankett (chaosman@ontika.net) : first release.
10*4882a593Smuzhiyun * 16-02-2012 pagemap extension by Al Viro
11*4882a593Smuzhiyun *
12*4882a593Smuzhiyun */
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun #include "qnx6.h"
15*4882a593Smuzhiyun
qnx6_lookup(struct inode * dir,struct dentry * dentry,unsigned int flags)16*4882a593Smuzhiyun struct dentry *qnx6_lookup(struct inode *dir, struct dentry *dentry,
17*4882a593Smuzhiyun unsigned int flags)
18*4882a593Smuzhiyun {
19*4882a593Smuzhiyun unsigned ino;
20*4882a593Smuzhiyun struct page *page;
21*4882a593Smuzhiyun struct inode *foundinode = NULL;
22*4882a593Smuzhiyun const char *name = dentry->d_name.name;
23*4882a593Smuzhiyun int len = dentry->d_name.len;
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun if (len > QNX6_LONG_NAME_MAX)
26*4882a593Smuzhiyun return ERR_PTR(-ENAMETOOLONG);
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun ino = qnx6_find_entry(len, dir, name, &page);
29*4882a593Smuzhiyun if (ino) {
30*4882a593Smuzhiyun foundinode = qnx6_iget(dir->i_sb, ino);
31*4882a593Smuzhiyun qnx6_put_page(page);
32*4882a593Smuzhiyun if (IS_ERR(foundinode))
33*4882a593Smuzhiyun pr_debug("lookup->iget -> error %ld\n",
34*4882a593Smuzhiyun PTR_ERR(foundinode));
35*4882a593Smuzhiyun } else {
36*4882a593Smuzhiyun pr_debug("%s(): not found %s\n", __func__, name);
37*4882a593Smuzhiyun }
38*4882a593Smuzhiyun return d_splice_alias(foundinode, dentry);
39*4882a593Smuzhiyun }
40