| Kai Bankett | 5d026c7 | 2012-02-17 05:59:20 +0100 | [diff] [blame] | 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 | |
| 15 | struct 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 | } |