btrfs: move tree block wait and write helpers to tree-log

The wrapper names better describe what's happening so they're not
deleted though they're trivial, but at least moved closer to their place
of use.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 561884f60d35..a59e98c9fbb9 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -225,6 +225,17 @@ void btrfs_end_log_trans(struct btrfs_root *root)
         }
 }
 
+static int btrfs_write_tree_block(struct extent_buffer *buf)
+{
+        return filemap_fdatawrite_range(buf->pages[0]->mapping, buf->start,
+                                        buf->start + buf->len - 1);
+}
+
+static void btrfs_wait_tree_block_writeback(struct extent_buffer *buf)
+{
+        filemap_fdatawait_range(buf->pages[0]->mapping,
+                                buf->start, buf->start + buf->len - 1);
+}
 
 /*
  * the walk control struct is used to pass state down the chain when