(dump_file): Do not diagnose a file that the parent directory

said should be there, but is absent.  It was
probably removed between then and now.
Do not pass meaningless errno to ERROR when reporting that the
file changed as we read it.

src/create.c

@@ -924,7 +924,7 @@ create_archive (void)
 /* Dump a single file, recursing on directories.  P is the file name
    to dump.  TOP_LEVEL tells whether this is a top-level call; zero
    means no, positive means yes, and negative means an incremental
-   dump where it's irrelevant.  PARENT_DEVICE is the device of P's
+   dump.  PARENT_DEVICE is the device of P's
    parent directory; it is examined only if TOP_LEVEL is zero.
 
    Set global CURRENT_STAT to stat output for this file.  */
@@ -1140,7 +1140,7 @@ dump_file (char *p, int top_level, dev_t parent_device)
 
       /* Now output all the files in the directory.  */
 
-      errno = 0;		/* FIXME: errno should be read-only */
+      errno = 0;
 
       directory = opendir (p);
       if (!directory)
@@ -1363,9 +1363,16 @@ dump_file (char *p, int top_level, dev_t parent_device)
 	      f = open (p, O_RDONLY | O_BINARY);
 	      if (f < 0)
 		{
-		  WARN ((0, errno, _("Cannot add file %s"), p));
-		  if (!ignore_failed_read_option)
-		    exit_status = TAREXIT_FAILURE;
+		  /* Do not diagnose a file that the parent directory
+		     said should be there, but is absent.  It was
+		     probably removed between then and now.  */
+		  if (top_level || errno != ENOENT)
+		    {
+		      WARN ((0, errno, _("Cannot add file %s"), p));
+		      if (! ignore_failed_read_option)
+			exit_status = TAREXIT_FAILURE;
+		    }
+
 		  return;
 		}
 	    }
@@ -1480,7 +1487,7 @@ dump_file (char *p, int top_level, dev_t parent_device)
 		ERROR ((0, errno, "%s: fstat", p));
 	      else if (final_stat.st_mtime != restore_times.modtime
 		       || final_stat.st_size != restore_size)
-		ERROR ((0, errno, _("%s: file changed as we read it"), p));
+		ERROR ((0, 0, _("%s: file changed as we read it"), p));
 	      if (close (f) != 0)
 		ERROR ((0, errno, _("%s: close"), p));
 	      if (atime_preserve_option)