btrfs-progs: btrfstune: Refactor change_devices_uuid to use btrfs_fs_info

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/btrfstune.c b/btrfstune.c
index 580fb40..2d85b04 100644 (file)
--- a/btrfstune.c
+++ b/btrfstune.c
@@ -177,10 +177,9 @@ out:
        return ret;
 }
 
-static int change_device_uuid(struct btrfs_root *root, struct extent_buffer *eb,
+static int change_device_uuid(struct btrfs_fs_info *fs_info, struct extent_buffer *eb,
                              int slot)
 {
-       struct btrfs_fs_info *fs_info = root->fs_info;
        struct btrfs_dev_item *di;
        int ret = 0;
 
@@ -216,7 +215,7 @@ static int change_devices_uuid(struct btrfs_fs_info *fs_info)
                if (key.type != BTRFS_DEV_ITEM_KEY ||
                    key.objectid != BTRFS_DEV_ITEMS_OBJECTID)
                        goto next;
-               ret = change_device_uuid(root, path.nodes[0], path.slots[0]);
+               ret = change_device_uuid(fs_info, path.nodes[0], path.slots[0]);
                if (ret < 0)
                        goto out;
 next: