Btrfs: allocator improvements, inode block groups

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h
index afe42d167cee..b5378119e76c 100644
--- a/fs/btrfs/transaction.h
+++ b/fs/btrfs/transaction.h
@@ -1,5 +1,6 @@
 #ifndef __TRANSACTION__
 #define __TRANSACTION__
+#include "btrfs_inode.h"
 
 struct btrfs_transaction {
         u64 transid;
@@ -20,10 +21,24 @@ struct btrfs_trans_handle {
         unsigned long blocks_reserved;
         unsigned long blocks_used;
         struct btrfs_transaction *transaction;
+        struct btrfs_block_group_cache *block_group;
         int magic2;
 };
 
 
+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)
+{
+        BTRFS_I(inode)->block_group = trans->block_group;
+}
+
 int btrfs_end_transaction(struct btrfs_trans_handle *trans,
                           struct btrfs_root *root);
 struct btrfs_trans_handle *btrfs_start_transaction(struct btrfs_root *root,