Btrfs: Create extent_buffer interface for large blocksizes
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/print-tree.c b/fs/btrfs/print-tree.c
index bafa786..a825ce0 100644
--- a/fs/btrfs/print-tree.c
+++ b/fs/btrfs/print-tree.c
@@ -20,10 +20,10 @@
#include "disk-io.h"
#include "print-tree.h"
-void btrfs_print_leaf(struct btrfs_root *root, struct btrfs_leaf *l)
+void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
{
int i;
- u32 nr = btrfs_header_nritems(&l->header);
+ u32 nr = btrfs_header_nritems(l);
struct btrfs_item *item;
struct btrfs_extent_item *ei;
struct btrfs_root_item *ri;
@@ -31,119 +31,113 @@
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;
u32 type;
printk("leaf %llu total ptrs %d free space %d\n",
- (unsigned long long)btrfs_header_blocknr(&l->header), nr,
+ (unsigned long long)btrfs_header_blocknr(l), nr,
btrfs_leaf_free_space(root, l));
for (i = 0 ; i < nr ; i++) {
- item = l->items + i;
- type = btrfs_disk_key_type(&item->key);
+ item = btrfs_item_nr(l, i);
+ btrfs_item_key_to_cpu(l, &key, i);
+ type = btrfs_key_type(&key);
printk("\titem %d key (%llu %x %llu) itemoff %d itemsize %d\n",
i,
- (unsigned long long)btrfs_disk_key_objectid(&item->key),
- btrfs_disk_key_flags(&item->key),
- (unsigned long long)btrfs_disk_key_offset(&item->key),
- btrfs_item_offset(item),
- btrfs_item_size(item));
+ (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("\t\tinode generation %llu size %llu mode %o\n",
- (unsigned long long)btrfs_inode_generation(ii),
- (unsigned long long)btrfs_inode_size(ii),
- btrfs_inode_mode(ii));
+ (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("\t\tdir oid %llu flags %u type %u\n",
- (unsigned long long)btrfs_disk_key_objectid(
- &di->location),
- btrfs_dir_flags(di),
- btrfs_dir_type(di));
- printk("\t\tname %.*s\n",
- btrfs_dir_name_len(di),(char *)(di + 1));
+ (unsigned long long)found_key.objectid,
+ btrfs_dir_flags(l, di),
+ btrfs_dir_type(l, di));
break;
case BTRFS_ROOT_ITEM_KEY:
ri = btrfs_item_ptr(l, i, struct btrfs_root_item);
printk("\t\troot data blocknr %llu refs %u\n",
- (unsigned long long)btrfs_root_blocknr(ri),
- btrfs_root_refs(ri));
+ (unsigned long long)btrfs_disk_root_blocknr(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("\t\textent data refs %u\n",
- btrfs_extent_refs(ei));
+ btrfs_extent_refs(l, ei));
break;
case BTRFS_EXTENT_DATA_KEY:
fi = btrfs_item_ptr(l, i,
struct btrfs_file_extent_item);
- if (btrfs_file_extent_type(fi) ==
+ if (btrfs_file_extent_type(l, fi) ==
BTRFS_FILE_EXTENT_INLINE) {
printk("\t\tinline extent data size %u\n",
- btrfs_file_extent_inline_len(l->items + i));
+ btrfs_file_extent_inline_len(l, item));
break;
}
printk("\t\textent data disk block %llu nr %llu\n",
- (unsigned long long)btrfs_file_extent_disk_blocknr(fi),
- (unsigned long long)btrfs_file_extent_disk_num_blocks(fi));
+ (unsigned long long)btrfs_file_extent_disk_blocknr(l, fi),
+ (unsigned long long)btrfs_file_extent_disk_num_blocks(l, fi));
printk("\t\textent data offset %llu nr %llu\n",
- (unsigned long long)btrfs_file_extent_offset(fi),
- (unsigned long long)btrfs_file_extent_num_blocks(fi));
+ (unsigned long long)btrfs_file_extent_offset(l, fi),
+ (unsigned long long)btrfs_file_extent_num_blocks(l, fi));
break;
case BTRFS_BLOCK_GROUP_ITEM_KEY:
bi = btrfs_item_ptr(l, i,
struct btrfs_block_group_item);
printk("\t\tblock group used %llu\n",
- (unsigned long long)btrfs_block_group_used(bi));
- break;
- case BTRFS_STRING_ITEM_KEY:
- printk("\t\titem data %.*s\n", btrfs_item_size(item),
- btrfs_leaf_data(l) + btrfs_item_offset(item));
+ (unsigned long long)btrfs_disk_block_group_used(l, bi));
break;
};
}
}
-void btrfs_print_tree(struct btrfs_root *root, struct buffer_head *t)
+void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *c)
{
int i;
u32 nr;
- struct btrfs_node *c;
+ struct btrfs_key key;
- if (!t)
+ if (!c)
return;
- c = btrfs_buffer_node(t);
- nr = btrfs_header_nritems(&c->header);
+ nr = btrfs_header_nritems(c);
if (btrfs_is_leaf(c)) {
- btrfs_print_leaf(root, (struct btrfs_leaf *)c);
+ btrfs_print_leaf(root, c);
return;
}
printk("node %llu level %d total ptrs %d free spc %u\n",
- (unsigned long long)btrfs_header_blocknr(&c->header),
- btrfs_header_level(&c->header), nr,
+ (unsigned long long)btrfs_header_blocknr(c),
+ btrfs_header_level(c), nr,
(u32)BTRFS_NODEPTRS_PER_BLOCK(root) - nr);
for (i = 0; i < nr; i++) {
+ btrfs_node_key_to_cpu(c, &key, i);
printk("\tkey %d (%llu %u %llu) block %llu\n",
i,
- (unsigned long long)c->ptrs[i].key.objectid,
- c->ptrs[i].key.flags,
- (unsigned long long)c->ptrs[i].key.offset,
+ (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 buffer_head *next_buf = read_tree_block(root,
+ struct extent_buffer *next = read_tree_block(root,
btrfs_node_blockptr(c, i));
- struct btrfs_node *next = btrfs_buffer_node(next_buf);
if (btrfs_is_leaf(next) &&
- btrfs_header_level(&c->header) != 1)
+ btrfs_header_level(c) != 1)
BUG();
- if (btrfs_header_level(&next->header) !=
- btrfs_header_level(&c->header) - 1)
+ if (btrfs_header_level(next) !=
+ btrfs_header_level(c) - 1)
BUG();
- btrfs_print_tree(root, next_buf);
- btrfs_block_release(root, next_buf);
+ btrfs_print_tree(root, next);
+ free_extent_buffer(next);
}
}