From a1851a6d3e69d67bfc4e6bfdec85ba58293351b9 Mon Sep 17 00:00:00 2001
From: Alexander Larsson <alexl@redhat.com>
Date: Tue, 28 Jan 2014 09:56:51 +0100
Subject: [PATCH] btrfs: Add comment to Put()

Document why we don't need to do anything in Put().

Docker-DCO-1.1-Signed-off-by: Alexander Larsson <alexl@redhat.com> (github: alexlarsson)
---
 graphdriver/btrfs/btrfs.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/graphdriver/btrfs/btrfs.go b/graphdriver/btrfs/btrfs.go
index 52ed66b174..e8dc6bd0e9 100644
--- a/graphdriver/btrfs/btrfs.go
+++ b/graphdriver/btrfs/btrfs.go
@@ -206,6 +206,8 @@ func (d *Driver) Get(id string) (string, error) {
 }
 
 func (d *Driver) Put(id string) {
+	// Get() creates no runtime resources (like e.g. mounts)
+	// so this doesn't need to do anything.
 }
 
 func (d *Driver) Exists(id string) bool {