From 5ba696892249f09dfc08b79c763987aaed9e7db4 Mon Sep 17 00:00:00 2001
From: Dietmar Maurer <dietmar@proxmox.com>
Date: Wed, 12 Dec 2018 11:21:00 +0100
Subject: [PATCH] add comment to make intensions more clear

---
 src/backup/chunk_store.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/backup/chunk_store.rs b/src/backup/chunk_store.rs
index fba15294..53bec858 100644
--- a/src/backup/chunk_store.rs
+++ b/src/backup/chunk_store.rs
@@ -139,6 +139,7 @@ impl ChunkStore {
         let mut lockfile_path = base.clone();
         lockfile_path.push(".lock");
 
+        // make sure only one process/thread/task can use it
         let lockfile = lock_file(lockfile_path, 10)?;
 
         Ok(ChunkStore {