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kernel/linux-imx6_3.14.28/fs/btrfs/tests/btrfs-tests.c 1.9 KB
6b13f685e   김민수   BSP 최초 추가
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  /*
   * Copyright (C) 2013 Fusion IO.  All rights reserved.
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public
   * License v2 as published by the Free Software Foundation.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * General Public License for more details.
   *
   * You should have received a copy of the GNU General Public
   * License along with this program; if not, write to the
   * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   * Boston, MA 021110-1307, USA.
   */
  
  #include <linux/fs.h>
  #include <linux/mount.h>
  #include <linux/magic.h>
  #include "btrfs-tests.h"
  #include "../ctree.h"
  
  static struct vfsmount *test_mnt = NULL;
  
  static const struct super_operations btrfs_test_super_ops = {
  	.alloc_inode	= btrfs_alloc_inode,
  	.destroy_inode	= btrfs_test_destroy_inode,
  };
  
  static struct dentry *btrfs_test_mount(struct file_system_type *fs_type,
  				       int flags, const char *dev_name,
  				       void *data)
  {
  	return mount_pseudo(fs_type, "btrfs_test:", &btrfs_test_super_ops,
  			    NULL, BTRFS_TEST_MAGIC);
  }
  
  static struct file_system_type test_type = {
  	.name		= "btrfs_test_fs",
  	.mount		= btrfs_test_mount,
  	.kill_sb	= kill_anon_super,
  };
  
  struct inode *btrfs_new_test_inode(void)
  {
  	return new_inode(test_mnt->mnt_sb);
  }
  
  int btrfs_init_test_fs(void)
  {
  	int ret;
  
  	ret = register_filesystem(&test_type);
  	if (ret) {
  		printk(KERN_ERR "btrfs: cannot register test file system
  ");
  		return ret;
  	}
  
  	test_mnt = kern_mount(&test_type);
  	if (IS_ERR(test_mnt)) {
  		printk(KERN_ERR "btrfs: cannot mount test file system
  ");
  		unregister_filesystem(&test_type);
  		return ret;
  	}
  	return 0;
  }
  
  void btrfs_destroy_test_fs(void)
  {
  	kern_unmount(test_mnt);
  	unregister_filesystem(&test_type);
  }