Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * QNX6 file system, Linux implementation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Version : 1.0.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * History :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  * 01-02-2012 by Kai Bankett (chaosman@ontika.net) : first release.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  * 16-02-2012 pagemap extension by Al Viro
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include "qnx6.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) struct dentry *qnx6_lookup(struct inode *dir, struct dentry *dentry,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 				unsigned int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	unsigned ino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	struct page *page;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	struct inode *foundinode = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	const char *name = dentry->d_name.name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	int len = dentry->d_name.len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	if (len > QNX6_LONG_NAME_MAX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 		return ERR_PTR(-ENAMETOOLONG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	ino = qnx6_find_entry(len, dir, name, &page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	if (ino) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 		foundinode = qnx6_iget(dir->i_sb, ino);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 		qnx6_put_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 		if (IS_ERR(foundinode))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 			pr_debug("lookup->iget ->  error %ld\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 				 PTR_ERR(foundinode));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 		pr_debug("%s(): not found %s\n", __func__, name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	return d_splice_alias(foundinode, dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) }