aaedb55bc0
I'm going to be removing hole extents in the near future so I wanted to make a sanity test for btrfs_get_extent to make sure I don't break anything in the meantime. This patch just puts btrfs_get_extent through its paces by giving it a completely unreasonable mapping to look at and make sure it is giving us back maps that make sense. Thanks, Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
75 lines
1.9 KiB
C
75 lines
1.9 KiB
C
/*
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* Copyright (C) 2013 Fusion IO. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License v2 as published by the Free Software Foundation.
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*
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* This program 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 GNU
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* 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
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 021110-1307, USA.
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*/
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#include <linux/fs.h>
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#include <linux/mount.h>
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#include <linux/magic.h>
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#include "btrfs-tests.h"
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#include "../ctree.h"
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static struct vfsmount *test_mnt = NULL;
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static const struct super_operations btrfs_test_super_ops = {
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.alloc_inode = btrfs_alloc_inode,
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.destroy_inode = btrfs_test_destroy_inode,
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};
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static struct dentry *btrfs_test_mount(struct file_system_type *fs_type,
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int flags, const char *dev_name,
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void *data)
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{
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return mount_pseudo(fs_type, "btrfs_test:", &btrfs_test_super_ops,
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NULL, BTRFS_TEST_MAGIC);
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}
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static struct file_system_type test_type = {
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.name = "btrfs_test_fs",
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.mount = btrfs_test_mount,
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.kill_sb = kill_anon_super,
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};
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struct inode *btrfs_new_test_inode(void)
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{
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return new_inode(test_mnt->mnt_sb);
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}
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int btrfs_init_test_fs(void)
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{
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int ret;
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ret = register_filesystem(&test_type);
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if (ret) {
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printk(KERN_ERR "btrfs: cannot register test file system\n");
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return ret;
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}
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test_mnt = kern_mount(&test_type);
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if (IS_ERR(test_mnt)) {
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printk(KERN_ERR "btrfs: cannot mount test file system\n");
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unregister_filesystem(&test_type);
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return ret;
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}
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return 0;
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}
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void btrfs_destroy_test_fs(void)
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{
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kern_unmount(test_mnt);
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unregister_filesystem(&test_type);
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}
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