#include <linux/namei.h>
#include <linux/miscdevice.h>
#include <linux/version.h>
+#include <linux/magic.h>
#include "compat.h"
#include "ctree.h"
#include "disk-io.h"
#include "export.h"
#include "compression.h"
-#define BTRFS_SUPER_MAGIC 0x9123683E
static struct super_operations btrfs_super_ops;
return ret;
}
-static void btrfs_write_super_lockfs(struct super_block *sb)
+static int btrfs_freeze(struct super_block *sb)
{
struct btrfs_root *root = btrfs_sb(sb);
mutex_lock(&root->fs_info->transaction_kthread_mutex);
mutex_lock(&root->fs_info->cleaner_mutex);
+ return 0;
}
-static void btrfs_unlockfs(struct super_block *sb)
+static int btrfs_unfreeze(struct super_block *sb)
{
struct btrfs_root *root = btrfs_sb(sb);
mutex_unlock(&root->fs_info->cleaner_mutex);
mutex_unlock(&root->fs_info->transaction_kthread_mutex);
+ return 0;
}
static struct super_operations btrfs_super_ops = {
.destroy_inode = btrfs_destroy_inode,
.statfs = btrfs_statfs,
.remount_fs = btrfs_remount,
- .write_super_lockfs = btrfs_write_super_lockfs,
- .unlockfs = btrfs_unlockfs,
+ .freeze_fs = btrfs_freeze,
+ .unfreeze_fs = btrfs_unfreeze,
};
static const struct file_operations btrfs_ctl_fops = {