From 80558e839d222010d688623811f3d679dee078be Mon Sep 17 00:00:00 2001
From: poornas <poornas@users.noreply.github.com>
Date: Thu, 12 Dec 2019 15:11:27 -0800
Subject: [PATCH] Clear cache if reverting to backend (#8637)

Clear cached entry before reverting to backend for
encrypted objects or those under retention to avoid
stale objects remaining in cache.
---
 cmd/disk-cache.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/cmd/disk-cache.go b/cmd/disk-cache.go
index 9f2a89e7e..be69a999f 100644
--- a/cmd/disk-cache.go
+++ b/cmd/disk-cache.go
@@ -585,12 +585,14 @@ func (c *cacheObjects) PutObject(ctx context.Context, bucket, object string, r *
 		return putObjectFn(ctx, bucket, object, r, opts)
 	}
 	if opts.ServerSideEncryption != nil {
+		dcache.Delete(ctx, bucket, object)
 		return putObjectFn(ctx, bucket, object, r, opts)
 	}
 
 	// skip cache for objects with locks
 	objRetention := getObjectRetentionMeta(opts.UserDefined)
 	if objRetention.Mode == Governance || objRetention.Mode == Compliance {
+		dcache.Delete(ctx, bucket, object)
 		return putObjectFn(ctx, bucket, object, r, opts)
 	}