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74 lines
1.9 KiB
C
74 lines
1.9 KiB
C
/*
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* dmfs-suspend.c
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*
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* Copyright (C) 2001 Sistina Software
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*
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* This software is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2, or (at
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* your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU CC; see the file COPYING. If not, write to
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* the Free Software Foundation, 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <linux/config.h>
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#include <linux/fs.h>
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static ssize_t dmfs_suspend_read(struct file *file, char *buf, size_t size, loff_t *pos)
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{
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down(&inode->i_sem);
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up(&inode->i_sem);
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}
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static ssize_t dmfs_suspend_write(struct file *file, const char *buf, size_t size, loff_t *pos)
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{
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down(&inode->i_sem);
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up(&inode->i_sem);
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}
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static int dmfs_suspend_sync(struct file *file, struct dentry *dentry, int datasync)
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{
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return 0;
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}
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static struct dm_table_file_operations = {
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/* llseek: generic_file_llseek, */
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read: dmfs_suspend_read,
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write: dmfs_suspend_write,
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open: dmfs_suspend_open,
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fsync: dmfs_suspend_sync,
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};
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static struct dmfs_suspend_inode_operations = {
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};
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int dmfs_create_suspend(struct inode *dir, int mode)
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{
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struct inode *inode = new_inode(dir->i_sb);
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if (inode) {
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inode->i_mode = mode | S_IFREG;
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inode->i_uid = current->fsuid;
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inode->i_gid = current->fsgid;
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inode->i_blksize = PAGE_CACHE_SIZE;
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inode->i_blocks = 0;
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inode->i_rdev = NODEV;
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inode->i_atime = inode->i_ctime = inode->i_mtime = CURRENT_TIME;
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inode->i_fop = &dmfs_suspend_file_operations;
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inode->i_op = &dmfs_suspend_inode_operations;
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}
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return inode;
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}
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