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/*
* linux/fs/hfs/sysdep.c
*
* Copyright (C) 1996 Paul H. Hargrove
* (C) 2003 Ardis Technologies <roman@ardistech.com>
* This file may be distributed under the terms of the GNU General Public License.
*
* This file contains the code to do various system dependent things.
*/
#include <linux/namei.h>
#include "hfs_fs.h"
/* dentry case-handling: just lowercase everything */
static int hfs_revalidate_dentry(struct dentry *dentry, unsigned int flags)
{
struct inode *inode;
int diff;
if (flags & LOOKUP_RCU)
return -ECHILD;
inode = d_inode(dentry);
if(!inode)
return 1;
/* fix up inode on a timezone change */
diff = sys_tz.tz_minuteswest * 60 - HFS_I(inode)->tz_secondswest;
if (diff) {
struct timespec64 ts = inode_get_ctime(inode);
inode_set_ctime(inode, ts.tv_sec + diff, ts.tv_nsec);
ts = inode_get_atime(inode);
inode_set_atime(inode, ts.tv_sec + diff, ts.tv_nsec);
ts = inode_get_mtime(inode);
inode_set_mtime(inode, ts.tv_sec + diff, ts.tv_nsec);
HFS_I(inode)->tz_secondswest += diff;
}
return 1;
}
const struct dentry_operations hfs_dentry_operations =
{
.d_revalidate = hfs_revalidate_dentry,
.d_hash = hfs_hash_dentry,
.d_compare = hfs_compare_dentry,
};
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