Btrfs: remove btrfs_end_transaction_dmeta()

Two reasons:
- btrfs_end_transaction_dmeta() is the same as btrfs_end_transaction_throttle()
  so it is unnecessary.
- All the delayed items should be dealt in the current transaction, so the
  workers should not commit the transaction, instead, deal with the delayed
  items as many as possible.

So we can remove btrfs_end_transaction_dmeta()

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>

3 files changed, 1 insertions, 9 deletions

diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index 6b2013403f46..826a26053c70 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -1302,7 +1302,7 @@ again:
         __btrfs_commit_inode_delayed_items(trans, path, delayed_node);
 
         trans->block_rsv = block_rsv;
-        btrfs_end_transaction_dmeta(trans, root);
+        btrfs_end_transaction(trans, root);
         btrfs_btree_balance_dirty_nodelay(root);
 
 release_path:
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 46bfd820d91f..e5fe801659ba 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -790,12 +790,6 @@ int btrfs_end_transaction_throttle(struct btrfs_trans_handle *trans,
         return __btrfs_end_transaction(trans, root, 1);
 }
 
-int btrfs_end_transaction_dmeta(struct btrfs_trans_handle *trans,
-                                struct btrfs_root *root)
-{
-        return __btrfs_end_transaction(trans, root, 1);
-}
-
 /*
  * when btree blocks are allocated, they have some corresponding bits set for
  * them in one of two extent_io trees.  This is used to make sure all of
diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h
index 7657d115067d..d05b6013fea8 100644
--- a/fs/btrfs/transaction.h
+++ b/fs/btrfs/transaction.h
@@ -154,8 +154,6 @@ int btrfs_commit_transaction_async(struct btrfs_trans_handle *trans,
                                    int wait_for_unblock);
 int btrfs_end_transaction_throttle(struct btrfs_trans_handle *trans,
                                    struct btrfs_root *root);
-int btrfs_end_transaction_dmeta(struct btrfs_trans_handle *trans,
-                                struct btrfs_root *root);
 int btrfs_should_end_transaction(struct btrfs_trans_handle *trans,
                                  struct btrfs_root *root);
 void btrfs_throttle(struct btrfs_root *root);