From b8d78d6a3153f0ebf01e11426bd28453c7b8b522 Mon Sep 17 00:00:00 2001
From: Jakob Unterwurzacher
Date: Mon, 16 Aug 2021 17:13:14 +0200
Subject: inomap: warn on first use of spillMap

We normally should not need it, warn if we do.
As the tests run with -wpanic, we would catch it.
---
 internal/inomap/inomap.go | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'internal/inomap')

diff --git a/internal/inomap/inomap.go b/internal/inomap/inomap.go
index 82d50b0..bd20e0d 100644
--- a/internal/inomap/inomap.go
+++ b/internal/inomap/inomap.go
@@ -18,6 +18,8 @@ import (
 	"log"
 	"sync"
 	"syscall"
+
+	"github.com/rfjakob/gocryptfs/internal/tlog"
 )
 
 const (
@@ -56,7 +58,11 @@ func New() *InoMap {
 	}
 }
 
+var spillWarn sync.Once
+
 func (m *InoMap) spill(in QIno) (out uint64) {
+	spillWarn.Do(func() { tlog.Warn.Printf("InoMap: opening spillMap for %v", in) })
+
 	out, found := m.spillMap[in]
 	if found {
 		return out | spillBit
-- 
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