Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
[sfrench/cifs-2.6.git] / fs / btrfs / print-tree.c
index dda08f32c154e918ab1f60d390b1603fa7a85323..5f8f218c1005776d7b51f39293dbbde2da97c811 100644 (file)
-#include <stdio.h>
-#include <stdlib.h>
-#include "kerncompat.h"
-#include "radix-tree.h"
+/*
+ * 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 "ctree.h"
 #include "disk-io.h"
+#include "print-tree.h"
 
-void print_leaf(struct leaf *l)
+static void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk)
+{
+       int num_stripes = btrfs_chunk_num_stripes(eb, chunk);
+       int i;
+       printk(KERN_INFO "\t\tchunk length %llu owner %llu type %llu "
+              "num_stripes %d\n",
+              (unsigned long long)btrfs_chunk_length(eb, chunk),
+              (unsigned long long)btrfs_chunk_owner(eb, chunk),
+              (unsigned long long)btrfs_chunk_type(eb, chunk),
+              num_stripes);
+       for (i = 0 ; i < num_stripes ; i++) {
+               printk(KERN_INFO "\t\t\tstripe %d devid %llu offset %llu\n", i,
+                     (unsigned long long)btrfs_stripe_devid_nr(eb, chunk, i),
+                     (unsigned long long)btrfs_stripe_offset_nr(eb, chunk, i));
+       }
+}
+static void print_dev_item(struct extent_buffer *eb,
+                          struct btrfs_dev_item *dev_item)
+{
+       printk(KERN_INFO "\t\tdev item devid %llu "
+              "total_bytes %llu bytes used %llu\n",
+              (unsigned long long)btrfs_device_id(eb, dev_item),
+              (unsigned long long)btrfs_device_total_bytes(eb, dev_item),
+              (unsigned long long)btrfs_device_bytes_used(eb, dev_item));
+}
+void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
 {
        int i;
-       int nr = l->header.nritems;
-       struct item *item;
-       struct extent_item *ei;
-       printf("leaf %Lu total ptrs %d free space %d\n", l->header.blocknr, nr,
-              leaf_free_space(l));
-       fflush(stdout);
+       u32 nr = btrfs_header_nritems(l);
+       struct btrfs_item *item;
+       struct btrfs_extent_item *ei;
+       struct btrfs_root_item *ri;
+       struct btrfs_dir_item *di;
+       struct btrfs_inode_item *ii;
+       struct btrfs_block_group_item *bi;
+       struct btrfs_file_extent_item *fi;
+       struct btrfs_key key;
+       struct btrfs_key found_key;
+       struct btrfs_extent_ref *ref;
+       struct btrfs_dev_extent *dev_extent;
+       u32 type;
+
+       printk(KERN_INFO "leaf %llu total ptrs %d free space %d\n",
+               (unsigned long long)btrfs_header_bytenr(l), nr,
+               btrfs_leaf_free_space(root, l));
        for (i = 0 ; i < nr ; i++) {
-               item = l->items + i;
-               printf("\titem %d key (%Lu %u %Lu) itemoff %d itemsize %d\n",
+               item = btrfs_item_nr(l, i);
+               btrfs_item_key_to_cpu(l, &key, i);
+               type = btrfs_key_type(&key);
+               printk(KERN_INFO "\titem %d key (%llu %x %llu) itemoff %d "
+                      "itemsize %d\n",
                        i,
-                       item->key.objectid, item->key.flags, item->key.offset,
-                       item->offset, item->size);
-               fflush(stdout);
-               printf("\t\titem data %.*s\n", item->size, l->data+item->offset);
-               ei = (struct extent_item *)(l->data + item->offset);
-               printf("\t\textent data %u %Lu\n", ei->refs, ei->owner);
-               fflush(stdout);
+                       (unsigned long long)key.objectid, type,
+                       (unsigned long long)key.offset,
+                       btrfs_item_offset(l, item), btrfs_item_size(l, item));
+               switch (type) {
+               case BTRFS_INODE_ITEM_KEY:
+                       ii = btrfs_item_ptr(l, i, struct btrfs_inode_item);
+                       printk(KERN_INFO "\t\tinode generation %llu size %llu "
+                              "mode %o\n",
+                              (unsigned long long)
+                              btrfs_inode_generation(l, ii),
+                             (unsigned long long)btrfs_inode_size(l, ii),
+                              btrfs_inode_mode(l, ii));
+                       break;
+               case BTRFS_DIR_ITEM_KEY:
+                       di = btrfs_item_ptr(l, i, struct btrfs_dir_item);
+                       btrfs_dir_item_key_to_cpu(l, di, &found_key);
+                       printk(KERN_INFO "\t\tdir oid %llu type %u\n",
+                               (unsigned long long)found_key.objectid,
+                               btrfs_dir_type(l, di));
+                       break;
+               case BTRFS_ROOT_ITEM_KEY:
+                       ri = btrfs_item_ptr(l, i, struct btrfs_root_item);
+                       printk(KERN_INFO "\t\troot data bytenr %llu refs %u\n",
+                               (unsigned long long)
+                               btrfs_disk_root_bytenr(l, ri),
+                               btrfs_disk_root_refs(l, ri));
+                       break;
+               case BTRFS_EXTENT_ITEM_KEY:
+                       ei = btrfs_item_ptr(l, i, struct btrfs_extent_item);
+                       printk(KERN_INFO "\t\textent data refs %u\n",
+                               btrfs_extent_refs(l, ei));
+                       break;
+               case BTRFS_EXTENT_REF_KEY:
+                       ref = btrfs_item_ptr(l, i, struct btrfs_extent_ref);
+                       printk(KERN_INFO "\t\textent back ref root %llu "
+                              "gen %llu owner %llu num_refs %lu\n",
+                              (unsigned long long)btrfs_ref_root(l, ref),
+                              (unsigned long long)btrfs_ref_generation(l, ref),
+                              (unsigned long long)btrfs_ref_objectid(l, ref),
+                              (unsigned long)btrfs_ref_num_refs(l, ref));
+                       break;
+
+               case BTRFS_EXTENT_DATA_KEY:
+                       fi = btrfs_item_ptr(l, i,
+                                           struct btrfs_file_extent_item);
+                       if (btrfs_file_extent_type(l, fi) ==
+                           BTRFS_FILE_EXTENT_INLINE) {
+                               printk(KERN_INFO "\t\tinline extent data "
+                                      "size %u\n",
+                                      btrfs_file_extent_inline_len(l, fi));
+                               break;
+                       }
+                       printk(KERN_INFO "\t\textent data disk bytenr %llu "
+                              "nr %llu\n",
+                              (unsigned long long)
+                              btrfs_file_extent_disk_bytenr(l, fi),
+                              (unsigned long long)
+                              btrfs_file_extent_disk_num_bytes(l, fi));
+                       printk(KERN_INFO "\t\textent data offset %llu "
+                              "nr %llu ram %llu\n",
+                              (unsigned long long)
+                              btrfs_file_extent_offset(l, fi),
+                              (unsigned long long)
+                              btrfs_file_extent_num_bytes(l, fi),
+                              (unsigned long long)
+                              btrfs_file_extent_ram_bytes(l, fi));
+                       break;
+               case BTRFS_BLOCK_GROUP_ITEM_KEY:
+                       bi = btrfs_item_ptr(l, i,
+                                           struct btrfs_block_group_item);
+                       printk(KERN_INFO "\t\tblock group used %llu\n",
+                              (unsigned long long)
+                              btrfs_disk_block_group_used(l, bi));
+                       break;
+               case BTRFS_CHUNK_ITEM_KEY:
+                       print_chunk(l, btrfs_item_ptr(l, i,
+                                                     struct btrfs_chunk));
+                       break;
+               case BTRFS_DEV_ITEM_KEY:
+                       print_dev_item(l, btrfs_item_ptr(l, i,
+                                       struct btrfs_dev_item));
+                       break;
+               case BTRFS_DEV_EXTENT_KEY:
+                       dev_extent = btrfs_item_ptr(l, i,
+                                                   struct btrfs_dev_extent);
+                       printk(KERN_INFO "\t\tdev extent chunk_tree %llu\n"
+                              "\t\tchunk objectid %llu chunk offset %llu "
+                              "length %llu\n",
+                              (unsigned long long)
+                              btrfs_dev_extent_chunk_tree(l, dev_extent),
+                              (unsigned long long)
+                              btrfs_dev_extent_chunk_objectid(l, dev_extent),
+                              (unsigned long long)
+                              btrfs_dev_extent_chunk_offset(l, dev_extent),
+                              (unsigned long long)
+                              btrfs_dev_extent_length(l, dev_extent));
+               };
        }
 }
-void print_tree(struct ctree_root *root, struct tree_buffer *t)
+
+void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *c)
 {
-       int i;
-       int nr;
-       struct node *c;
+       int i; u32 nr;
+       struct btrfs_key key;
+       int level;
 
-       if (!t)
+       if (!c)
                return;
-       c = &t->node;
-       nr = c->header.nritems;
-       if (c->header.blocknr != t->blocknr)
-               BUG();
-       if (is_leaf(c->header.flags)) {
-               print_leaf((struct leaf *)c);
+       nr = btrfs_header_nritems(c);
+       level = btrfs_header_level(c);
+       if (level == 0) {
+               btrfs_print_leaf(root, c);
                return;
        }
-       printf("node %Lu level %d total ptrs %d free spc %u\n", t->blocknr,
-               node_level(c->header.flags), c->header.nritems,
-               (u32)NODEPTRS_PER_BLOCK - c->header.nritems);
-       fflush(stdout);
+       printk(KERN_INFO "node %llu level %d total ptrs %d free spc %u\n",
+              (unsigned long long)btrfs_header_bytenr(c),
+              btrfs_header_level(c), nr,
+              (u32)BTRFS_NODEPTRS_PER_BLOCK(root) - nr);
        for (i = 0; i < nr; i++) {
-               printf("\tkey %d (%Lu %u %Lu) block %Lu\n",
+               btrfs_node_key_to_cpu(c, &key, i);
+               printk(KERN_INFO "\tkey %d (%llu %u %llu) block %llu\n",
                       i,
-                      c->keys[i].objectid, c->keys[i].flags, c->keys[i].offset,
-                      c->blockptrs[i]);
-               fflush(stdout);
+                      (unsigned long long)key.objectid,
+                      key.type,
+                      (unsigned long long)key.offset,
+                      (unsigned long long)btrfs_node_blockptr(c, i));
        }
        for (i = 0; i < nr; i++) {
-               struct tree_buffer *next_buf = read_tree_block(root,
-                                                           c->blockptrs[i]);
-               struct node *next = &next_buf->node;
-               if (is_leaf(next->header.flags) &&
-                   node_level(c->header.flags) != 1)
+               struct extent_buffer *next = read_tree_block(root,
+                                       btrfs_node_blockptr(c, i),
+                                       btrfs_level_size(root, level - 1),
+                                       btrfs_node_ptr_generation(c, i));
+               if (btrfs_is_leaf(next) &&
+                   btrfs_header_level(c) != 1)
                        BUG();
-               if (node_level(next->header.flags) !=
-                       node_level(c->header.flags) - 1)
+               if (btrfs_header_level(next) !=
+                       btrfs_header_level(c) - 1)
                        BUG();
-               print_tree(root, next_buf);
-               tree_block_release(root, next_buf);
+               btrfs_print_tree(root, next);
+               free_extent_buffer(next);
        }
-
 }
-