SAFE public projects git trees. - safe/jmp/linux-2.6/blob - fs/btrfs/print-tree.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include "kerncompat.h"
   4 #include "radix-tree.h"
   5 #include "ctree.h"
   6 #include "disk-io.h"
   7
   8 void print_leaf(struct leaf *l)
   9 {
  10         int i;
  11         int nr = l->header.nritems;
  12         struct item *item;
  13         struct extent_item *ei;
  14         printf("leaf %Lu total ptrs %d free space %d\n", l->header.blocknr, nr,
  15                leaf_free_space(l));
  16         fflush(stdout);
  17         for (i = 0 ; i < nr ; i++) {
  18                 item = l->items + i;
  19                 printf("\titem %d key (%Lu %u %Lu) itemoff %d itemsize %d\n",
  20                         i,
  21                         item->key.objectid, item->key.flags, item->key.offset,
  22                         item->offset, item->size);
  23                 fflush(stdout);
  24                 printf("\t\titem data %.*s\n", item->size, l->data+item->offset);
  25                 ei = (struct extent_item *)(l->data + item->offset);
  26                 printf("\t\textent data %u %Lu\n", ei->refs, ei->owner);
  27                 fflush(stdout);
  28         }
  29 }
  30 void print_tree(struct ctree_root *root, struct tree_buffer *t)
  31 {
  32         int i;
  33         int nr;
  34         struct node *c;
  35
  36         if (!t)
  37                 return;
  38         c = &t->node;
  39         nr = c->header.nritems;
  40         if (c->header.blocknr != t->blocknr)
  41                 BUG();
  42         if (is_leaf(c->header.flags)) {
  43                 print_leaf((struct leaf *)c);
  44                 return;
  45         }
  46         printf("node %Lu level %d total ptrs %d free spc %u\n", t->blocknr,
  47                 node_level(c->header.flags), c->header.nritems,
  48                 (u32)NODEPTRS_PER_BLOCK - c->header.nritems);
  49         fflush(stdout);
  50         for (i = 0; i < nr; i++) {
  51                 printf("\tkey %d (%Lu %u %Lu) block %Lu\n",
  52                        i,
  53                        c->keys[i].objectid, c->keys[i].flags, c->keys[i].offset,
  54                        c->blockptrs[i]);
  55                 fflush(stdout);
  56         }
  57         for (i = 0; i < nr; i++) {
  58                 struct tree_buffer *next_buf = read_tree_block(root,
  59                                                             c->blockptrs[i]);
  60                 struct node *next = &next_buf->node;
  61                 if (is_leaf(next->header.flags) &&
  62                     node_level(c->header.flags) != 1)
  63                         BUG();
  64                 if (node_level(next->header.flags) !=
  65                         node_level(c->header.flags) - 1)
  66                         BUG();
  67                 print_tree(root, next_buf);
  68                 tree_block_release(root, next_buf);
  69         }
  70
  71 }
  72