From 6d043164a90129f792615ee964f7b0956c2d38b7 Mon Sep 17 00:00:00 2001
From: funkygao <funky.gao@gmail.com>
Date: Wed, 25 Mar 2015 22:05:58 +0800
Subject: [PATCH] add comment: db.dataref is readonly

---
 db.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/db.go b/db.go
index 0ba0e41..8f0e90b 100644
--- a/db.go
+++ b/db.go
@@ -73,7 +73,7 @@ type DB struct {
 
 	path     string
 	file     *os.File
-	dataref  []byte
+	dataref  []byte // mmap'ed readonly, write throws SEGV
 	data     *[maxMapSize]byte
 	datasz   int
 	meta0    *meta