Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com>
---
debugbtrfs/Makefile | 2 +-
debugbtrfs/debug_btrfs_cmds.ct | 24 ++++
debugbtrfs/debug_tree.c | 238 ++++++++++++++++++++++++++++++++++++++++
3 files changed, 263 insertions(+), 1 deletions(-)
create mode 100644 debugbtrfs/debug_tree.c
diff --git a/debugbtrfs/Makefile b/debugbtrfs/Makefile
index 348160b..970990e 100644
--- a/debugbtrfs/Makefile
+++ b/debugbtrfs/Makefile
@@ -33,7 +33,7 @@ all: $(progs)
debug_btrfs_cmds.c: debug_btrfs_cmds.ct
$(MK_CMDS) debug_btrfs_cmds.ct
-debug-btrfs: $(TOPDIR)/lib/libbtrfs.a debug_btrfs.o cmds.o debug_btrfs_cmds.o
+debug-btrfs: $(TOPDIR)/lib/libbtrfs.a debug_btrfs.o cmds.o debug_btrfs_cmds.o
debug_tree.o
$(CC) $(CFLAGS) -o debug-btrfs $^ $(TOPDIR)/lib/libbtrfs.a $(LDFLAGS)
$(LIBS)
clean:
diff --git a/debugbtrfs/debug_btrfs_cmds.ct b/debugbtrfs/debug_btrfs_cmds.ct
index e9890ee..cd40cf4 100644
--- a/debugbtrfs/debug_btrfs_cmds.ct
+++ b/debugbtrfs/debug_btrfs_cmds.ct
@@ -23,5 +23,29 @@ request do_show_debugfs_params, "Show btrfs_debug
parameters",
request do_open_filesys, "Open the file system",
open_filesys, open;
+request do_dump_tree, "Show full btrfs tree",
+ dump_tree;
+
+request do_dump_extent_tree, "Show Extent tree",
+ dump_extent_tree;
+
+request do_dump_root_tree, "Show root tree",
+ dump_root_tree;
+
+request do_dump_chunk_tree, "Show btrfs chunk tree",
+ dump_chunk_tree;
+
+request do_dump_dev_tree, "Show btrfs dev tree",
+ dump_dev_tree;
+
+request do_dump_fs_tree, "Show btrfs fs tree",
+ dump_fs_tree;
+
+request do_dump_csum_tree, "Show btrfs checksum tree",
+ dump_csum_tree;
+
+request do_dump_log_tree, "Show btrfs log tree",
+ dump_log_tree;
+
end;
diff --git a/debugbtrfs/debug_tree.c b/debugbtrfs/debug_tree.c
new file mode 100644
index 0000000..e92d6d0
--- /dev/null
+++ b/debugbtrfs/debug_tree.c
@@ -0,0 +1,238 @@
+/*
+ * Copyright (C) 2007 Oracle. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <uuid/uuid.h>
+#include "kerncompat.h"
+#include "radix-tree.h"
+#include "ctree.h"
+#include "disk-io.h"
+#include "print-tree.h"
+#include "transaction.h"
+#include "debug_btrfs.h"
+
+void do_dump_extent_tree(int argc, char *argv[])
+{
+ if (!current_fs_root) {
+ fprintf(stderr, "File system not yet opened: %s\n",
current_device);
+ return;
+ }
+ printf("Extent tree\n");
+ btrfs_print_tree(current_fs_root->fs_info->extent_root,
+ current_fs_root->fs_info->extent_root->node);
+}
+
+void do_dump_root_tree(int argc, char *argv[])
+{
+ if (!current_fs_root) {
+ fprintf(stderr, "File system not yet opened: %s\n",
current_device);
+ return;
+ }
+ printf("root tree\n");
+ btrfs_print_tree(current_fs_root->fs_info->tree_root,
+ current_fs_root->fs_info->tree_root->node);
+}
+
+void do_dump_chunk_tree(int argc, char *argv[])
+{
+ if (!current_fs_root) {
+ fprintf(stderr, "File system not yet opened: %s\n",
current_device);
+ return;
+ }
+ printf("chunk tree\n");
+ btrfs_print_tree(current_fs_root->fs_info->chunk_root,
+ current_fs_root->fs_info->chunk_root->node);
+}
+
+void do_dump_dev_tree(int argc, char *argv[])
+{
+ if (!current_fs_root) {
+ fprintf(stderr, "File system not yet opened: %s\n",
current_device);
+ return;
+ }
+ printf("Device tree\n");
+ btrfs_print_tree(current_fs_root->fs_info->dev_root,
+ current_fs_root->fs_info->dev_root->node);
+}
+
+void do_dump_fs_tree(int argc, char *argv[])
+{
+ if (!current_fs_root) {
+ fprintf(stderr, "File system not yet opened: %s\n",
current_device);
+ return;
+ }
+ printf("FS tree\n");
+ btrfs_print_tree(current_fs_root->fs_info->fs_root,
+ current_fs_root->fs_info->fs_root->node);
+}
+
+void do_dump_csum_tree(int argc, char *argv[])
+{
+ if (!current_fs_root) {
+ fprintf(stderr, "File system not yet opened: %s\n",
current_device);
+ return;
+ }
+ printf("Checksum tree\n");
+ btrfs_print_tree(current_fs_root->fs_info->csum_root,
+ current_fs_root->fs_info->csum_root->node);
+}
+
+void do_dump_log_tree(int argc, char *argv[])
+{
+ if (!current_fs_root) {
+ fprintf(stderr, "File system not yet opened: %s\n",
current_device);
+ return;
+ }
+ printf("Log tree\n");
+ if (!current_fs_root->fs_info->log_root_tree) {
+ printf("Nothing to replay \n");
+ return;
+ }
+ btrfs_print_tree(current_fs_root->fs_info->log_root_tree,
+ current_fs_root->fs_info->log_root_tree->node);
+}
+
+void do_dump_tree(int argc, char *argv[])
+{
+ struct btrfs_path path;
+ struct btrfs_key key;
+ struct btrfs_root_item ri;
+ struct extent_buffer *leaf;
+ struct btrfs_disk_key disk_key;
+ struct btrfs_key found_key;
+ char uuidbuf[37];
+ int ret;
+ int slot;
+ struct btrfs_root *tree_root_scan;
+
+ if (!current_fs_root) {
+ fprintf(stderr, "File system not yet opened: %s\n",
current_device);
+ return;
+ }
+ printf("root tree\n");
+ btrfs_print_tree(current_fs_root->fs_info->tree_root,
+ current_fs_root->fs_info->tree_root->node);
+
+ printf("chunk tree\n");
+ btrfs_print_tree(current_fs_root->fs_info->chunk_root,
+ current_fs_root->fs_info->chunk_root->node);
+
+ tree_root_scan = current_fs_root->fs_info->tree_root;
+
+ btrfs_init_path(&path);
+again:
+ key.offset = 0;
+ key.objectid = 0;
+ btrfs_set_key_type(&key, BTRFS_ROOT_ITEM_KEY);
+ ret = btrfs_search_slot(NULL, tree_root_scan, &key, &path, 0, 0);
+ BUG_ON(ret < 0);
+ while(1) {
+ leaf = path.nodes[0];
+ slot = path.slots[0];
+ if (slot >= btrfs_header_nritems(leaf)) {
+ ret = btrfs_next_leaf(tree_root_scan, &path);
+ if (ret != 0)
+ break;
+ leaf = path.nodes[0];
+ slot = path.slots[0];
+ }
+ btrfs_item_key(leaf, &disk_key, path.slots[0]);
+ btrfs_disk_key_to_cpu(&found_key, &disk_key);
+ if (btrfs_key_type(&found_key) == BTRFS_ROOT_ITEM_KEY) {
+ unsigned long offset;
+ struct extent_buffer *buf;
+
+ offset = btrfs_item_ptr_offset(leaf, slot);
+ read_extent_buffer(leaf, &ri, offset, sizeof(ri));
+ buf = read_tree_block(tree_root_scan,
+ btrfs_root_bytenr(&ri),
+ tree_root_scan->leafsize, 0);
+ switch(found_key.objectid) {
+ case BTRFS_ROOT_TREE_OBJECTID:
+ printf("root");
+ break;
+ case BTRFS_EXTENT_TREE_OBJECTID:
+ printf("extent");
+ break;
+ case BTRFS_CHUNK_TREE_OBJECTID:
+ printf("chunk");
+ break;
+ case BTRFS_DEV_TREE_OBJECTID:
+ printf("device");
+ break;
+ case BTRFS_FS_TREE_OBJECTID:
+ printf("fs");
+ break;
+ case BTRFS_ROOT_TREE_DIR_OBJECTID:
+ printf("directory");
+ break;
+ case BTRFS_CSUM_TREE_OBJECTID:
+ printf("checksum");
+ break;
+ case BTRFS_ORPHAN_OBJECTID:
+ printf("orphan");
+ break;
+ case BTRFS_TREE_LOG_OBJECTID:
+ printf("log");
+ break;
+ case BTRFS_TREE_LOG_FIXUP_OBJECTID:
+ printf("log fixup");
+ break;
+ case BTRFS_TREE_RELOC_OBJECTID:
+ printf("reloc");
+ break;
+ case BTRFS_DATA_RELOC_TREE_OBJECTID:
+ printf("data reloc");
+ break;
+ case BTRFS_EXTENT_CSUM_OBJECTID:
+ printf("extent checksum");
+ break;
+ case BTRFS_MULTIPLE_OBJECTIDS:
+ printf("multiple");
+ break;
+ default:
+ printf("file");
+ }
+
+ printf(" tree ");
+ btrfs_print_key(&disk_key);
+ printf(" \n");
+ btrfs_print_tree(tree_root_scan, buf);
+
+ }
+ path.slots[0]++;
+ }
+ btrfs_release_path(current_fs_root, &path);
+
+ if (tree_root_scan == current_fs_root->fs_info->tree_root &&
+ current_fs_root->fs_info->log_root_tree) {
+ tree_root_scan = current_fs_root->fs_info->log_root_tree;
+ goto again;
+ }
+
+ printf("total bytes %llu\n",
+ (unsigned long
long)btrfs_super_total_bytes(¤t_fs_root->fs_info->super_copy));
+ printf("bytes used %llu\n",
+ (unsigned long
long)btrfs_super_bytes_used(¤t_fs_root->fs_info->super_copy));
+ uuidbuf[36] = '\0';
+ uuid_unparse(current_fs_root->fs_info->super_copy.fsid, uuidbuf);
+ printf("uuid %s\n", uuidbuf);
+ return;
+}
--
1.7.0.rc0.48.gdace5
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