fs/btrfs/transaction.h

   1 #ifndef __TRANSACTION__
   2 #define __TRANSACTION__
   3 #include "btrfs_inode.h"
   4
   5 struct btrfs_transaction {
   6         u64 transid;
   7         unsigned long num_writers;
   8         int in_commit;
   9         int use_count;
  10         int commit_done;
  11         struct list_head list;
  12         struct radix_tree_root dirty_pages;
  13         unsigned long start_time;
  14         wait_queue_head_t writer_wait;
  15         wait_queue_head_t commit_wait;
  16 };
  17
  18 struct btrfs_trans_handle {
  19         u64 transid;
  20         unsigned long blocks_reserved;
  21         unsigned long blocks_used;
  22         struct btrfs_transaction *transaction;
  23         struct btrfs_block_group_cache *block_group;
  24 };
  25
  26
  27 static inline void btrfs_set_trans_block_group(struct btrfs_trans_handle *trans,
  28                                                struct inode *inode)
  29 {
  30         trans->block_group = BTRFS_I(inode)->block_group;
  31 }
  32
  33 static inline void btrfs_update_inode_block_group(struct
  34                                                   btrfs_trans_handle *trans,
  35                                                   struct inode *inode)
  36 {
  37         BTRFS_I(inode)->block_group = trans->block_group;
  38 }
  39
  40 int btrfs_end_transaction(struct btrfs_trans_handle *trans,
  41                           struct btrfs_root *root);
  42 struct btrfs_trans_handle *btrfs_start_transaction(struct btrfs_root *root,
  43                                                    int num_blocks);
  44 int btrfs_write_and_wait_transaction(struct btrfs_trans_handle *trans,
  45                                      struct btrfs_root *root);
  46 int btrfs_commit_tree_roots(struct btrfs_trans_handle *trans,
  47                             struct btrfs_root *root);
  48
  49 void btrfs_transaction_cleaner(struct work_struct *work);
  50 void btrfs_transaction_flush_work(struct btrfs_root *root);
  51 void btrfs_transaction_queue_work(struct btrfs_root *root, int delay);
  52 void btrfs_init_transaction_sys(void);
  53 void btrfs_exit_transaction_sys(void);
  54
  55 #endif