original development tree for Linux kernel GTP module; now long in mainline.
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/*
* QNX6 file system, Linux implementation.
*
* Version : 1.0.0
*
* History :
*
* 01-02-2012 by Kai Bankett (chaosman@ontika.net) : first release.
* 16-02-2012 pagemap extension by Al Viro
*
*/
#include "qnx6.h"
struct dentry *qnx6_lookup(struct inode *dir, struct dentry *dentry,
unsigned int flags)
{
unsigned ino;
struct page *page;
struct inode *foundinode = NULL;
const char *name = dentry->d_name.name;
int len = dentry->d_name.len;
if (len > QNX6_LONG_NAME_MAX)
return ERR_PTR(-ENAMETOOLONG);
ino = qnx6_find_entry(len, dir, name, &page);
if (ino) {
foundinode = qnx6_iget(dir->i_sb, ino);
qnx6_put_page(page);
if (IS_ERR(foundinode)) {
QNX6DEBUG((KERN_ERR "qnx6: lookup->iget -> "
" error %ld\n", PTR_ERR(foundinode)));
return ERR_CAST(foundinode);
}
} else {
QNX6DEBUG((KERN_INFO "qnx6_lookup: not found %s\n", name));
return NULL;
}
d_add(dentry, foundinode);
return NULL;
}