btrfs: get fs_info from trans in insert_ptr

We can read fs_info from the transaction and can drop it from the
parameters.
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/ctree.c

@@ -3407,7 +3407,7 @@ static noinline int insert_new_root(struct btrfs_trans_handle *trans,
  * blocknr is the block the key points to.
  */
 static void insert_ptr(struct btrfs_trans_handle *trans,
-		       struct btrfs_fs_info *fs_info, struct btrfs_path *path,
+		       struct btrfs_path *path,
 		       struct btrfs_disk_key *key, u64 bytenr,
 		       int slot, int level)
 {
@@ -3420,7 +3420,7 @@ static void insert_ptr(struct btrfs_trans_handle *trans,
 	lower = path->nodes[level];
 	nritems = btrfs_header_nritems(lower);
 	BUG_ON(slot > nritems);
-	BUG_ON(nritems == BTRFS_NODEPTRS_PER_BLOCK(fs_info));
+	BUG_ON(nritems == BTRFS_NODEPTRS_PER_BLOCK(trans->fs_info));
 	if (slot != nritems) {
 		if (level) {
 			ret = tree_mod_log_insert_move(lower, slot + 1, slot,
@@ -3520,7 +3520,7 @@ static noinline int split_node(struct btrfs_trans_handle *trans,
 	btrfs_mark_buffer_dirty(c);
 	btrfs_mark_buffer_dirty(split);
 
-	insert_ptr(trans, fs_info, path, &disk_key, split->start,
+	insert_ptr(trans, path, &disk_key, split->start,
 		   path->slots[level + 1] + 1, level + 1);
 
 	if (path->slots[level] >= mid) {
@@ -4084,8 +4084,7 @@ static noinline void copy_for_split(struct btrfs_trans_handle *trans,
 
 	btrfs_set_header_nritems(l, mid);
 	btrfs_item_key(right, &disk_key, 0);
-	insert_ptr(trans, fs_info, path, &disk_key, right->start,
-		   path->slots[1] + 1, 1);
+	insert_ptr(trans, path, &disk_key, right->start, path->slots[1] + 1, 1);
 
 	btrfs_mark_buffer_dirty(right);
 	btrfs_mark_buffer_dirty(l);
@@ -4291,7 +4290,7 @@ static noinline int split_leaf(struct btrfs_trans_handle *trans,
 	if (split == 0) {
 		if (mid <= slot) {
 			btrfs_set_header_nritems(right, 0);
-			insert_ptr(trans, fs_info, path, &disk_key,
+			insert_ptr(trans, path, &disk_key,
 				   right->start, path->slots[1] + 1, 1);
 			btrfs_tree_unlock(path->nodes[0]);
 			free_extent_buffer(path->nodes[0]);
@@ -4300,7 +4299,7 @@ static noinline int split_leaf(struct btrfs_trans_handle *trans,
 			path->slots[1] += 1;
 		} else {
 			btrfs_set_header_nritems(right, 0);
-			insert_ptr(trans, fs_info, path, &disk_key,
+			insert_ptr(trans, path, &disk_key,
 				   right->start, path->slots[1], 1);
 			btrfs_tree_unlock(path->nodes[0]);
 			free_extent_buffer(path->nodes[0]);