From: Pádraig Brady <P@draigBrady.com>
Date: Thu, 29 May 2014 15:44:50 +0000 (+0100)
Subject: stat: avoid redundant stat() calls
X-Git-Tag: v8.23~50
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=39d1c9576a3f2e5e65c5fb06744aa7245d743bc0;p=thirdparty%2Fcoreutils.git

stat: avoid redundant stat() calls

* src/stat.c (find_bind_mount): NAME is invariant in the loop,
so only stat(NAME) outside the loop.
---

diff --git a/src/stat.c b/src/stat.c
index 6f42b61bd3..0f67d22dfe 100644
--- a/src/stat.c
+++ b/src/stat.c
@@ -841,17 +841,19 @@ find_bind_mount (char const * name)
       tried_mount_list = true;
     }
 
+  struct stat name_stats;
+  if (stat (name, &name_stats) != 0)
+    return NULL;
+
   struct mount_entry *me;
   for (me = mount_list; me; me = me->me_next)
     {
       if (me->me_dummy && me->me_devname[0] == '/'
           && STREQ (me->me_mountdir, name))
         {
-          struct stat name_stats;
           struct stat dev_stats;
 
-          if (stat (name, &name_stats) == 0
-              && stat (me->me_devname, &dev_stats) == 0
+          if (stat (me->me_devname, &dev_stats) == 0
               && SAME_INODE (name_stats, dev_stats))
             {
               bind_mount = me->me_devname;