From 0749dd7fb87d9e52d2372d491fe22f5dc133c2c9 Mon Sep 17 00:00:00 2001
From: Giuseppe Scrivano <gscrivan@redhat.com>
Date: Wed, 24 Jul 2019 16:04:38 +0200
Subject: [PATCH] main, copyup: avoid a chown if it is not needed

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
---
 main.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/main.c b/main.c
index cf77f53..f90a93e 100644
--- a/main.c
+++ b/main.c
@@ -2383,9 +2383,12 @@ copyup (struct ovl_data *lo, struct ovl_node *node)
   if (dfd < 0)
     goto exit;
 
-  ret = fchown (dfd, st.st_uid, st.st_gid);
-  if (ret < 0)
-      goto exit;
+  if (st.st_uid != lo->uid || st.st_gid != lo->gid)
+    {
+      ret = fchown (dfd, st.st_uid, st.st_gid);
+      if (ret < 0)
+        goto exit;
+    }
 
   buf = malloc (buf_size);
   if (buf == NULL)