sysdep.c

Go to the documentation of this file.

/*
 *  linux/fs/hfs/sysdep.c
 *
 * Copyright (C) 1996  Paul H. Hargrove
 * (C) 2003 Ardis Technologies <[email protected]>
 * 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 = dentry->d_inode;
    if(!inode)
        return 1;

    /* fix up inode on a timezone change */
    diff = sys_tz.tz_minuteswest * 60 - HFS_I(inode)->tz_secondswest;
    if (diff) {
        inode->i_ctime.tv_sec += diff;
        inode->i_atime.tv_sec += diff;
        inode->i_mtime.tv_sec += diff;
        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,
};