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 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