convert btrfs

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 144f8a5..ebe46c6 100644 (file)
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -560,8 +560,8 @@ static int btrfs_test_super(struct super_block *s, void *data)
  * Note:  This is based on get_sb_bdev from fs/super.c with a few additions
  *       for multiple device setup.  Make sure to keep it in sync.
  */
-static int btrfs_get_sb(struct file_system_type *fs_type, int flags,
-               const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *btrfs_mount(struct file_system_type *fs_type, int flags,
+               const char *dev_name, void *data)
 {
        struct block_device *bdev = NULL;
        struct super_block *s;
@@ -580,7 +580,7 @@ static int btrfs_get_sb(struct file_system_type *fs_type, int flags,
                                          &subvol_name, &subvol_objectid,
                                          &fs_devices);
        if (error)
-               return error;
+               return ERR_PTR(error);
 
        error = btrfs_scan_one_device(dev_name, mode, fs_type, &fs_devices);
        if (error)
@@ -656,11 +656,8 @@ static int btrfs_get_sb(struct file_system_type *fs_type, int flags,
                root = new_root;
        }
 
-       mnt->mnt_sb = s;
-       mnt->mnt_root = root;
-
        kfree(subvol_name);
-       return 0;
+       return root;
 
 error_s:
        error = PTR_ERR(s);
@@ -669,7 +666,7 @@ error_close_devices:
 error_free_subvol_name:
        kfree(subvol_name);
 error:
-       return error;
+       return ERR_PTR(error);
 }
 
 static int btrfs_remount(struct super_block *sb, int *flags, char *data)
@@ -746,7 +743,7 @@ static int btrfs_statfs(struct dentry *dentry, struct kstatfs *buf)
 static struct file_system_type btrfs_fs_type = {
        .owner          = THIS_MODULE,
        .name           = "btrfs",
-       .get_sb         = btrfs_get_sb,
+       .mount          = btrfs_mount,
        .kill_sb        = kill_anon_super,
        .fs_flags       = FS_REQUIRES_DEV,
 };