[linux-2.6-block.git] / fs / qnx6 / namei.c

/*
 * 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)) {
			pr_debug("lookup->iget ->  error %ld\n",
				 PTR_ERR(foundinode));
			return ERR_CAST(foundinode);
		}
	} else {
		pr_debug("%s(): not found %s\n", __func__, name);
		return NULL;
	}
	d_add(dentry, foundinode);
	return NULL;
}
Commit	Line	Data
5d026c72 KB	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,
00cd8dd3	16	unsigned int flags)
5d026c72 KB	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)) {
fa5a7a41 FF	32	pr_debug("lookup->iget -> error %ld\n",
fa5a7a41 FF	33	PTR_ERR(foundinode));
5d026c72 KB	34	return ERR_CAST(foundinode);
	35	}
	36	} else {
fa5a7a41	37	pr_debug("%s(): not found %s\n", __func__, name);
5d026c72 KB	38	return NULL;
	39	}
	40	d_add(dentry, foundinode);
	41	return NULL;
	42	}