xref: /openbmc/linux/fs/hfs/sysdep.c (revision 1fa6ac37)
1 /*
2  *  linux/fs/hfs/sysdep.c
3  *
4  * Copyright (C) 1996  Paul H. Hargrove
5  * (C) 2003 Ardis Technologies <roman@ardistech.com>
6  * This file may be distributed under the terms of the GNU General Public License.
7  *
8  * This file contains the code to do various system dependent things.
9  */
10 
11 #include "hfs_fs.h"
12 
13 /* dentry case-handling: just lowercase everything */
14 
15 static int hfs_revalidate_dentry(struct dentry *dentry, struct nameidata *nd)
16 {
17 	struct inode *inode = dentry->d_inode;
18 	int diff;
19 
20 	if(!inode)
21 		return 1;
22 
23 	/* fix up inode on a timezone change */
24 	diff = sys_tz.tz_minuteswest * 60 - HFS_I(inode)->tz_secondswest;
25 	if (diff) {
26 		inode->i_ctime.tv_sec += diff;
27 		inode->i_atime.tv_sec += diff;
28 		inode->i_mtime.tv_sec += diff;
29 		HFS_I(inode)->tz_secondswest += diff;
30 	}
31 	return 1;
32 }
33 
34 const struct dentry_operations hfs_dentry_operations =
35 {
36 	.d_revalidate	= hfs_revalidate_dentry,
37 	.d_hash		= hfs_hash_dentry,
38 	.d_compare	= hfs_compare_dentry,
39 };
40 
41