drm/nouveau: remove PRIV0 check in nouveau_mem_close()
[safe/jmp/linux-2.6] / fs / btrfs / transaction.h
index 2c73cae..d4e3e7a 100644 (file)
 #ifndef __BTRFS_TRANSACTION__
 #define __BTRFS_TRANSACTION__
 #include "btrfs_inode.h"
+#include "delayed-ref.h"
 
 struct btrfs_transaction {
        u64 transid;
+       /*
+        * total writers in this transaction, it must be zero before the
+        * transaction can end
+        */
        unsigned long num_writers;
+
        unsigned long num_joined;
        int in_commit;
        int use_count;
@@ -34,6 +40,7 @@ struct btrfs_transaction {
        wait_queue_head_t writer_wait;
        wait_queue_head_t commit_wait;
        struct list_head pending_snapshots;
+       struct btrfs_delayed_ref_root delayed_refs;
 };
 
 struct btrfs_trans_handle {
@@ -41,32 +48,29 @@ struct btrfs_trans_handle {
        unsigned long blocks_reserved;
        unsigned long blocks_used;
        struct btrfs_transaction *transaction;
-       struct btrfs_block_group_cache *block_group;
+       u64 block_group;
        u64 alloc_exclude_start;
        u64 alloc_exclude_nr;
+       unsigned long delayed_ref_updates;
 };
 
 struct btrfs_pending_snapshot {
+       struct dentry *dentry;
        struct btrfs_root *root;
        char *name;
+       struct btrfs_key root_key;
        struct list_head list;
 };
 
-struct btrfs_dirty_root {
-       struct list_head list;
-       struct btrfs_root *root;
-       struct btrfs_root *latest_root;
-};
-
 static inline void btrfs_set_trans_block_group(struct btrfs_trans_handle *trans,
                                               struct inode *inode)
 {
        trans->block_group = BTRFS_I(inode)->block_group;
 }
 
-static inline void btrfs_update_inode_block_group(struct
-                                                 btrfs_trans_handle *trans,
-                                                 struct inode *inode)
+static inline void btrfs_update_inode_block_group(
+                                         struct btrfs_trans_handle *trans,
+                                         struct inode *inode)
 {
        BTRFS_I(inode)->block_group = trans->block_group;
 }
@@ -75,6 +79,7 @@ static inline void btrfs_set_inode_last_trans(struct btrfs_trans_handle *trans,
                                              struct inode *inode)
 {
        BTRFS_I(inode)->last_trans = trans->transaction->transid;
+       BTRFS_I(inode)->last_sub_trans = BTRFS_I(inode)->root->log_transid;
 }
 
 int btrfs_end_transaction(struct btrfs_trans_handle *trans,
@@ -90,8 +95,8 @@ int btrfs_write_and_wait_transaction(struct btrfs_trans_handle *trans,
 int btrfs_commit_tree_roots(struct btrfs_trans_handle *trans,
                            struct btrfs_root *root);
 
-int btrfs_add_dead_root(struct btrfs_root *root, struct btrfs_root *latest,
-                       struct list_head *dead_list);
+int btrfs_add_dead_root(struct btrfs_root *root);
+int btrfs_drop_dead_root(struct btrfs_root *root);
 int btrfs_defrag_root(struct btrfs_root *root, int cacheonly);
 int btrfs_clean_old_snapshots(struct btrfs_root *root);
 int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
@@ -99,4 +104,13 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
 int btrfs_end_transaction_throttle(struct btrfs_trans_handle *trans,
                                   struct btrfs_root *root);
 void btrfs_throttle(struct btrfs_root *root);
+int btrfs_record_root_in_trans(struct btrfs_trans_handle *trans,
+                               struct btrfs_root *root);
+int btrfs_write_and_wait_marked_extents(struct btrfs_root *root,
+                                       struct extent_io_tree *dirty_pages);
+int btrfs_write_marked_extents(struct btrfs_root *root,
+                                       struct extent_io_tree *dirty_pages);
+int btrfs_wait_marked_extents(struct btrfs_root *root,
+                                       struct extent_io_tree *dirty_pages);
+int btrfs_transaction_in_commit(struct btrfs_fs_info *info);
 #endif