1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * linux/fs/hfs/sysdep.c 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * Copyright (C) 1996 Paul H. Hargrove 5*4882a593Smuzhiyun * (C) 2003 Ardis Technologies <roman@ardistech.com> 6*4882a593Smuzhiyun * This file may be distributed under the terms of the GNU General Public License. 7*4882a593Smuzhiyun * 8*4882a593Smuzhiyun * This file contains the code to do various system dependent things. 9*4882a593Smuzhiyun */ 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun #include <linux/namei.h> 12*4882a593Smuzhiyun #include "hfs_fs.h" 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun /* dentry case-handling: just lowercase everything */ 15*4882a593Smuzhiyun hfs_revalidate_dentry(struct dentry * dentry,unsigned int flags)16*4882a593Smuzhiyunstatic int hfs_revalidate_dentry(struct dentry *dentry, unsigned int flags) 17*4882a593Smuzhiyun { 18*4882a593Smuzhiyun struct inode *inode; 19*4882a593Smuzhiyun int diff; 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun if (flags & LOOKUP_RCU) 22*4882a593Smuzhiyun return -ECHILD; 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun inode = d_inode(dentry); 25*4882a593Smuzhiyun if(!inode) 26*4882a593Smuzhiyun return 1; 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun /* fix up inode on a timezone change */ 29*4882a593Smuzhiyun diff = sys_tz.tz_minuteswest * 60 - HFS_I(inode)->tz_secondswest; 30*4882a593Smuzhiyun if (diff) { 31*4882a593Smuzhiyun inode->i_ctime.tv_sec += diff; 32*4882a593Smuzhiyun inode->i_atime.tv_sec += diff; 33*4882a593Smuzhiyun inode->i_mtime.tv_sec += diff; 34*4882a593Smuzhiyun HFS_I(inode)->tz_secondswest += diff; 35*4882a593Smuzhiyun } 36*4882a593Smuzhiyun return 1; 37*4882a593Smuzhiyun } 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun const struct dentry_operations hfs_dentry_operations = 40*4882a593Smuzhiyun { 41*4882a593Smuzhiyun .d_revalidate = hfs_revalidate_dentry, 42*4882a593Smuzhiyun .d_hash = hfs_hash_dentry, 43*4882a593Smuzhiyun .d_compare = hfs_compare_dentry, 44*4882a593Smuzhiyun }; 45*4882a593Smuzhiyun 46