mirror of
git://sourceware.org/git/lvm2.git
synced 2025-01-07 21:18:59 +03:00
66bac98fc2
o dmfs-dir.c becomes dmfs-lv.c o dmfs-file.c becomes dmfs-table.c o A few tweeks and updates The main reason for the slow progress on these files (which are not yet used by the device mapper) is that we are working out what this interface should look like as we go along. Once this has evolved a bit further and in a state where it can be used we'll announce it on the lists for further comment.
78 lines
2.0 KiB
C
78 lines
2.0 KiB
C
/*
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* dmfs-table.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_table_read(struct file *file, char *buf, size_t size, loff_t *pos)
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{
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}
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static ssize_t dmfs_table_write(struct file *file, const char *buf, size_t size, loff_t *pos)
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{
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}
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static int dmfs_table_open(struct inode *inode, struct file *file)
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{
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struct dentry *dentry = file->f_dentry;
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if (dentry->name.len == 6 && memcmp("ACTIVE", dentry->name.name, 6) == 0)
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return -EPERM;
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return 0;
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}
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static int dmfs_table_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_read,
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write: dmfs_write,
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open: dmfs_open,
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fsync: dmfs_table_sync,
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};
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static struct dmfs_table_inode_operations = {
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};
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int dmfs_create_file(struct inode *dir, struct dentry *dentry, 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_table_file_operations;
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inode->i_op = &dmfs_table_inode_operations;
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}
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return inode;
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}
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