btrfs: remove unused chunk_tree argument in several functions

There functions include unused chunk_tree argument from the begining,
it is time to remove them and clean up relative code to prepare value
of this argument in caller.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 33ed9df08a9cfaa8851e85e7610de00aaec36ae1..30c6074f3d00e07c5b8baf714205ae6a864d17ef 100644 (file)
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2487,8 +2487,7 @@ int btrfs_grow_device(struct btrfs_trans_handle *trans,
 }
 
 static int btrfs_free_chunk(struct btrfs_trans_handle *trans,
-                           struct btrfs_root *root,
-                           u64 chunk_tree, u64 chunk_objectid,
+                           struct btrfs_root *root, u64 chunk_objectid,
                            u64 chunk_offset)
 {
        int ret;
@@ -2580,7 +2579,6 @@ int btrfs_remove_chunk(struct btrfs_trans_handle *trans,
        struct map_lookup *map;
        u64 dev_extent_len = 0;
        u64 chunk_objectid = BTRFS_FIRST_CHUNK_TREE_OBJECTID;
-       u64 chunk_tree = root->fs_info->chunk_root->objectid;
        int i, ret = 0;
 
        /* Just in case */
@@ -2634,8 +2632,7 @@ int btrfs_remove_chunk(struct btrfs_trans_handle *trans,
                        }
                }
        }
-       ret = btrfs_free_chunk(trans, root, chunk_tree, chunk_objectid,
-                              chunk_offset);
+       ret = btrfs_free_chunk(trans, root, chunk_objectid, chunk_offset);
        if (ret) {
                btrfs_abort_transaction(trans, root, ret);
                goto out;
@@ -2664,8 +2661,8 @@ out:
 }
 
 static int btrfs_relocate_chunk(struct btrfs_root *root,
-                        u64 chunk_tree, u64 chunk_objectid,
-                        u64 chunk_offset)
+                               u64 chunk_objectid,
+                               u64 chunk_offset)
 {
        struct btrfs_root *extent_root;
        struct btrfs_trans_handle *trans;
@@ -2707,7 +2704,6 @@ static int btrfs_relocate_sys_chunks(struct btrfs_root *root)
        struct btrfs_chunk *chunk;
        struct btrfs_key key;
        struct btrfs_key found_key;
-       u64 chunk_tree = chunk_root->root_key.objectid;
        u64 chunk_type;
        bool retried = false;
        int failed = 0;
@@ -2744,7 +2740,7 @@ again:
                btrfs_release_path(path);
 
                if (chunk_type & BTRFS_BLOCK_GROUP_SYSTEM) {
-                       ret = btrfs_relocate_chunk(chunk_root, chunk_tree,
+                       ret = btrfs_relocate_chunk(chunk_root,
                                                   found_key.objectid,
                                                   found_key.offset);
                        if (ret == -ENOSPC)
@@ -3255,7 +3251,6 @@ again:
                }
 
                ret = btrfs_relocate_chunk(chunk_root,
-                                          chunk_root->root_key.objectid,
                                           found_key.objectid,
                                           found_key.offset);
                if (ret && ret != -ENOSPC)
@@ -3957,7 +3952,6 @@ int btrfs_shrink_device(struct btrfs_device *device, u64 new_size)
        struct btrfs_dev_extent *dev_extent = NULL;
        struct btrfs_path *path;
        u64 length;
-       u64 chunk_tree;
        u64 chunk_objectid;
        u64 chunk_offset;
        int ret;
@@ -4027,13 +4021,11 @@ again:
                        break;
                }
 
-               chunk_tree = btrfs_dev_extent_chunk_tree(l, dev_extent);
                chunk_objectid = btrfs_dev_extent_chunk_objectid(l, dev_extent);
                chunk_offset = btrfs_dev_extent_chunk_offset(l, dev_extent);
                btrfs_release_path(path);
 
-               ret = btrfs_relocate_chunk(root, chunk_tree, chunk_objectid,
-                                          chunk_offset);
+               ret = btrfs_relocate_chunk(root, chunk_objectid, chunk_offset);
                if (ret && ret != -ENOSPC)
                        goto done;
                if (ret == -ENOSPC)