Pileus Git - ~andy/linux/blob - 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         int magic;
  12         struct list_head list;
  13         struct radix_tree_root dirty_pages;
  14         unsigned long start_time;
  15         wait_queue_head_t writer_wait;
  16         wait_queue_head_t commit_wait;
  17 };
  18
  19 struct btrfs_trans_handle {
  20         int magic;
  21         u64 transid;
  22         unsigned long blocks_reserved;
  23         unsigned long blocks_used;
  24         struct btrfs_transaction *transaction;
  25         struct btrfs_block_group_cache *block_group;
  26         int magic2;
  27 };
  28
  29
  30 static inline void btrfs_set_trans_block_group(struct btrfs_trans_handle *trans,
  31                                                struct inode *inode)
  32 {
  33         trans->block_group = BTRFS_I(inode)->block_group;
  34 }
  35
  36 static inline void btrfs_update_inode_block_group(struct
  37                                                   btrfs_trans_handle *trans,
  38                                                   struct inode *inode)
  39 {
  40         BTRFS_I(inode)->block_group = trans->block_group;
  41 }
  42
  43 int btrfs_end_transaction(struct btrfs_trans_handle *trans,
  44                           struct btrfs_root *root);
  45 struct btrfs_trans_handle *btrfs_start_transaction(struct btrfs_root *root,
  46                                                    int num_blocks);
  47 int btrfs_write_and_wait_transaction(struct btrfs_trans_handle *trans,
  48                                      struct btrfs_root *root);
  49 int btrfs_commit_tree_roots(struct btrfs_trans_handle *trans,
  50                             struct btrfs_root *root);
  51
  52 void btrfs_transaction_cleaner(struct work_struct *work);
  53 void btrfs_transaction_flush_work(struct btrfs_root *root);
  54 void btrfs_transaction_queue_work(struct btrfs_root *root, int delay);
  55 void btrfs_init_transaction_sys(void);
  56 void btrfs_exit_transaction_sys(void);
  57
  58 #endif