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   1 #ifndef __TRANSACTION__
   2 #define __TRANSACTION__
   3
   4 struct btrfs_trans_handle {
   5         u64 transid;
   6         unsigned long blocks_reserved;
   7         unsigned long blocks_used;
   8 };
   9
  10 static inline struct btrfs_trans_handle *
  11 btrfs_start_transaction(struct btrfs_root *root, int num_blocks)
  12 {
  13         struct btrfs_trans_handle *h = malloc(sizeof(*h));
  14         h->transid = root->root_key.offset;
  15         h->blocks_reserved = num_blocks;
  16         h->blocks_used = 0;
  17         return h;
  18 }
  19
  20 static inline void btrfs_free_transaction(struct btrfs_root *root,
  21                                           struct btrfs_trans_handle *handle)
  22 {
  23         memset(handle, 0, sizeof(*handle));
  24         free(handle);
  25 }
  26
  27 #endif