struct btrfs_root;
struct btrfs_trans_handle;
-#define BTRFS_MAGIC "_BCRfS_M"
+#define BTRFS_MAGIC "_BDRfS_M"
#define BTRFS_MAX_LEVEL 8
__le64 bytenr;
__le64 byte_limit;
__le64 bytes_used;
+ __le64 last_snapshot;
__le32 flags;
__le32 refs;
struct btrfs_disk_key drop_progress;
u8 level;
} __attribute__ ((__packed__));
-#define BTRFS_FILE_EXTENT_REG 0
-#define BTRFS_FILE_EXTENT_INLINE 1
+#define BTRFS_FILE_EXTENT_INLINE 0
+#define BTRFS_FILE_EXTENT_REG 1
+#define BTRFS_FILE_EXTENT_PREALLOC 2
struct btrfs_file_extent_item {
/*
BTRFS_SETGET_STACK_FUNCS(root_flags, struct btrfs_root_item, flags, 32);
BTRFS_SETGET_STACK_FUNCS(root_used, struct btrfs_root_item, bytes_used, 64);
BTRFS_SETGET_STACK_FUNCS(root_limit, struct btrfs_root_item, byte_limit, 64);
+BTRFS_SETGET_STACK_FUNCS(root_last_snapshot, struct btrfs_root_item,
+ last_snapshot, 64);
+
/* struct btrfs_super_block */
BTRFS_SETGET_STACK_FUNCS(super_bytenr, struct btrfs_super_block, bytenr, 64);
printf("fs uuid %s\nchunk uuid %s\n", fs_uuid, chunk_uuid);
}
+static void print_file_extent_item(struct extent_buffer *eb,
+ struct btrfs_item *item,
+ struct btrfs_file_extent_item *fi)
+{
+ int extent_type = btrfs_file_extent_type(eb, fi);
+
+ if (extent_type == BTRFS_FILE_EXTENT_INLINE) {
+ printf("\t\tinline extent data size %u "
+ "ram %llu compress %d\n",
+ btrfs_file_extent_inline_len(eb, item),
+ (unsigned long long) btrfs_file_extent_ram_bytes(eb, fi),
+ btrfs_file_extent_compression(eb, fi));
+ return;
+ }
+ if (extent_type == BTRFS_FILE_EXTENT_PREALLOC) {
+ printf("\t\tprealloc data disk byte %llu nr %llu\n",
+ (unsigned long long)btrfs_file_extent_disk_bytenr(eb, fi),
+ (unsigned long long)btrfs_file_extent_disk_num_bytes(eb, fi));
+ printf("\t\tprealloc data offset %llu nr %llu\n",
+ (unsigned long long)btrfs_file_extent_offset(eb, fi),
+ (unsigned long long)btrfs_file_extent_num_bytes(eb, fi));
+ return;
+ }
+ printf("\t\textent data disk byte %llu nr %llu\n",
+ (unsigned long long)btrfs_file_extent_disk_bytenr(eb, fi),
+ (unsigned long long)btrfs_file_extent_disk_num_bytes(eb, fi));
+ printf("\t\textent data offset %llu nr %llu ram %llu\n",
+ (unsigned long long)btrfs_file_extent_offset(eb, fi),
+ (unsigned long long)btrfs_file_extent_num_bytes(eb, fi),
+ (unsigned long long)btrfs_file_extent_ram_bytes(eb, fi));
+ printf("\t\textent compression %d\n",
+ btrfs_file_extent_compression(eb, fi));
+}
+
+
void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
{
int i;
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) {
- printf("\t\tinline extent data size %u "
- "ram %llu compress %d\n",
- btrfs_file_extent_inline_len(l, item),
- (unsigned long long)
- btrfs_file_extent_ram_bytes(l, fi),
- btrfs_file_extent_compression(l, fi));
- break;
- }
- printf("\t\textent data disk byte %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));
- printf("\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));
- printf("\t\textent compression %d\n",
- btrfs_file_extent_compression(l, fi));
+ print_file_extent_item(l, item, fi);
break;
case BTRFS_BLOCK_GROUP_ITEM_KEY:
bi = btrfs_item_ptr(l, i,