Index: gio/glocalfileinfo.c
===================================================================
--- gio/glocalfileinfo.c	(revision 7754)
+++ gio/glocalfileinfo.c	(working copy)
@@ -57,6 +57,14 @@
 
 #endif /* HAVE_XATTR */
 
+#ifndef O_NOATIME
+#if defined(__linux__) && (defined(__i386__) || defined(__PPC__))
+#define O_NOATIME 01000000
+#else
+#define O_NOATIME 0
+#endif
+#endif
+
 #include <glib/gstdio.h>
 #include <gfileattribute-priv.h>
 
@@ -1191,6 +1199,24 @@
 
 #endif /* !G_OS_WIN32 */
 
+static int
+open_noatime (const char *path, 
+              GFileQueryInfoFlags flags)
+{
+  int fd;
+
+  if (flags & G_FILE_QUERY_INFO_NOATIME)
+    {
+      fd = open (path, O_RDONLY | O_NOATIME);
+      if (fd < 0 && errno != ENOENT)
+          fd = open (path, O_RDONLY);
+    }
+  else
+    fd = open (path, O_RDONLY);
+
+  return fd;
+}
+
 static char *
 get_content_type (const char          *basename,
 		  const char          *path,
@@ -1235,7 +1261,7 @@
 	  if (sniff_length > 4096)
 	    sniff_length = 4096;
 	  
-	  fd = open (path, O_RDONLY);
+	  fd = open_noatime (path, flags);
 	  if (fd != -1)
 	    {
 	      ssize_t res;
Index: gio/gioenums.h
===================================================================
--- gio/gioenums.h	(revision 7754)
+++ gio/gioenums.h	(working copy)
@@ -142,12 +142,15 @@
  * GFileQueryInfoFlags:
  * @G_FILE_QUERY_INFO_NONE: No flags set.
  * @G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS: Don't follow symlinks.
+ * @G_FILE_QUERY_INFO_NOATIME: Try to avoid updating a file's  
+ *     access time when possible. 
  *
  * Flags used when querying a #GFileInfo.
  */
 typedef enum {
   G_FILE_QUERY_INFO_NONE              = 0,
-  G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS = (1 << 0)   /*< nick=nofollow-symlinks >*/
+  G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS = (1 << 0), /*< nick=nofollow-symlinks >*/
+  G_FILE_QUERY_INFO_NOATIME = (1 << 1)
 } GFileQueryInfoFlags;