diff --git a/image/main.c b/image/main.c
index 171072c4..c4a9a423 100644
--- a/image/main.c
+++ b/image/main.c
@@ -54,6 +54,16 @@ const struct dump_version dump_versions[] = {
 	  .max_pending_size = SZ_256K,
 	  .magic_cpu = 0xbd5c25e27295668bULL,
 	  .extra_sb_flags = 1 },
+#if EXPERIMENTAL
+	/*
+	 * The new format, with much larger item size to contain any data
+	 * extents.
+	 */
+	{ .version = 1,
+	  .max_pending_size = SZ_256M,
+	  .magic_cpu = 0x31765f506d55445fULL, /* ascii _DUmP_v1, no null */
+	  .extra_sb_flags = 0 },
+#endif
 };
 
 const struct dump_version *current_version = &dump_versions[0];
@@ -455,10 +465,14 @@ static void metadump_destroy(struct metadump_struct *md, int num_threads)
 
 static int metadump_init(struct metadump_struct *md, struct btrfs_root *root,
 			 FILE *out, int num_threads, int compress_level,
-			 enum sanitize_mode sanitize_names)
+			 bool dump_data, enum sanitize_mode sanitize_names)
 {
 	int i, ret = 0;
 
+	/* We need larger item/cluster limit for data extents */
+	if (dump_data)
+		current_version = &dump_versions[1];
+
 	memset(md, 0, sizeof(*md));
 	INIT_LIST_HEAD(&md->list);
 	INIT_LIST_HEAD(&md->ordered);
@@ -886,7 +900,7 @@ static int copy_space_cache(struct btrfs_root *root,
 }
 
 static int copy_from_extent_tree(struct metadump_struct *metadump,
-				 struct btrfs_path *path)
+				 struct btrfs_path *path, bool dump_data)
 {
 	struct btrfs_root *extent_root;
 	struct extent_buffer *leaf;
@@ -951,9 +965,15 @@ static int copy_from_extent_tree(struct metadump_struct *metadump,
 			ei = btrfs_item_ptr(leaf, path->slots[0],
 					    struct btrfs_extent_item);
 			if (btrfs_extent_flags(leaf, ei) &
-			    BTRFS_EXTENT_FLAG_TREE_BLOCK) {
+			    BTRFS_EXTENT_FLAG_TREE_BLOCK ||
+			    (dump_data && (btrfs_extent_flags(leaf, ei) &
+					   BTRFS_EXTENT_FLAG_DATA))) {
+				bool is_data;
+
+				is_data = btrfs_extent_flags(leaf, ei) &
+					  BTRFS_EXTENT_FLAG_DATA;
 				ret = add_extent(bytenr, num_bytes, metadump,
-						 0);
+						 is_data);
 				if (ret) {
 					error("unable to add block %llu: %d",
 						(unsigned long long)bytenr, ret);
@@ -976,7 +996,7 @@ static int copy_from_extent_tree(struct metadump_struct *metadump,
 
 static int create_metadump(const char *input, FILE *out, int num_threads,
 			   int compress_level, enum sanitize_mode sanitize,
-			   int walk_trees)
+			   int walk_trees, bool dump_data)
 {
 	struct btrfs_root *root;
 	struct btrfs_path path;
@@ -991,7 +1011,7 @@ static int create_metadump(const char *input, FILE *out, int num_threads,
 	}
 
 	ret = metadump_init(&metadump, root, out, num_threads,
-			    compress_level, sanitize);
+			    compress_level, dump_data, sanitize);
 	if (ret) {
 		error("failed to initialize metadump: %d", ret);
 		close_ctree(root);
@@ -1023,7 +1043,7 @@ static int create_metadump(const char *input, FILE *out, int num_threads,
 			goto out;
 		}
 	} else {
-		ret = copy_from_extent_tree(&metadump, &path);
+		ret = copy_from_extent_tree(&metadump, &path, dump_data);
 		if (ret) {
 			err = ret;
 			goto out;
@@ -2929,6 +2949,7 @@ static void print_usage(int ret)
 	printf("\t-s      \tsanitize file names, use once to just use garbage, use twice if you want crc collisions\n");
 	printf("\t-w      \twalk all trees instead of using extent tree, do this if your extent tree is broken\n");
 	printf("\t-m	   \trestore for multiple devices\n");
+	printf("\t-d	   \talso dump data, conflicts with -w\n");
 	printf("\n");
 	printf("\tIn the dump mode, source is the btrfs device and target is the output file (use '-' for stdout).\n");
 	printf("\tIn the restore mode, source is the dumped image and target is the btrfs device/file.\n");
@@ -2948,6 +2969,7 @@ int BOX_MAIN(image)(int argc, char *argv[])
 	int ret;
 	enum sanitize_mode sanitize = SANITIZE_NONE;
 	int dev_cnt = 0;
+	bool dump_data = false;
 	int usage_error = 0;
 	FILE *out;
 
@@ -2956,7 +2978,7 @@ int BOX_MAIN(image)(int argc, char *argv[])
 			{ "help", no_argument, NULL, GETOPT_VAL_HELP},
 			{ NULL, 0, NULL, 0 }
 		};
-		int c = getopt_long(argc, argv, "rc:t:oswm", long_options, NULL);
+		int c = getopt_long(argc, argv, "rc:t:oswmd", long_options, NULL);
 		if (c < 0)
 			break;
 		switch (c) {
@@ -2996,6 +3018,9 @@ int BOX_MAIN(image)(int argc, char *argv[])
 			create = 0;
 			multi_devices = 1;
 			break;
+		case 'd':
+			dump_data = true;
+			break;
 		case GETOPT_VAL_HELP:
 		default:
 			print_usage(c != GETOPT_VAL_HELP);
@@ -3008,16 +3033,28 @@ int BOX_MAIN(image)(int argc, char *argv[])
 
 	dev_cnt = argc - optind - 1;
 
+#if !EXPERIMENTAL
+	if (dump_data) {
+		error(
+"data dump feature is experimental and is not configured in this build");
+		print_usage(1);
+	}
+#endif
 	if (create) {
 		if (old_restore) {
 			error(
 			"create and restore cannot be used at the same time");
 			usage_error++;
 		}
+		if (dump_data && walk_trees) {
+			error("-d conflicts with -w option");
+			usage_error++;
+		}
 	} else {
-		if (walk_trees || sanitize != SANITIZE_NONE || compress_level) {
+		if (walk_trees || sanitize != SANITIZE_NONE || compress_level ||
+		    dump_data) {
 			error(
-			"using -w, -s, -c options for restore makes no sense");
+		"using -w, -s, -c, -d options for restore makes no sense");
 			usage_error++;
 		}
 		if (multi_devices && dev_cnt < 2) {
@@ -3070,7 +3107,8 @@ int BOX_MAIN(image)(int argc, char *argv[])
 		}
 
 		ret = create_metadump(source, out, num_threads,
-				      compress_level, sanitize, walk_trees);
+				      compress_level, sanitize, walk_trees,
+				      dump_data);
 	} else {
 		ret = restore_metadump(source, out, old_restore, num_threads,
 				       0, target, multi_devices);