File reiser-unpack of Package grub

--- grub-0.95/stage2/filesys.h.orig	2004-05-14 21:36:43.000000000 +0200
+++ grub-0.95/stage2/filesys.h	2004-09-30 17:16:20.741176364 +0200
@@ -73,6 +73,16 @@
 int reiserfs_read (char *buf, int len);
 int reiserfs_dir (char *dirname);
 int reiserfs_embed (int *start_sector, int needed_sectors);
+#if defined(__linux__) && defined (GRUB_UTIL)
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <sys/statfs.h>
+#include <fcntl.h>
+/* from <linux/reiserfs_fs.h> */
+#define REISERFS_SUPER_MAGIC 0x52654973
+#define REISERFS_IOC_UNPACK  _IOW(0xCD,1,long)
+#endif
 #else
 #define FSYS_REISERFS_NUM 0
 #endif
--- grub-0.95/stage2/builtins.c.orig	2004-05-14 21:30:52.000000000 +0200
+++ grub-0.95/stage2/builtins.c	2004-09-30 17:18:52.342818812 +0200
@@ -1807,9 +1807,23 @@
 #ifdef GRUB_UTIL
       else if (grub_memcmp ("--stage2=", arg, sizeof ("--stage2=") - 1) == 0)
 	{
+	  int fd;
 	  stage2_os_file = arg + sizeof ("--stage2=") - 1;
 	  arg = skip_to (0, arg);
 	  nul_terminate (stage2_os_file);
+
+#if defined(__linux__) && defined (FSYS_REISERFS)
+	  if ((fd=open(stage2_os_file, O_RDONLY)) >= 0)
+	    {
+	      struct statfs buf;
+	      /* see if the file sits on a reiserfs,
+		 and try do defragment it if so. */
+	      fstatfs(fd, &buf);
+	      if (buf.f_type == REISERFS_SUPER_MAGIC)
+		ioctl (fd, REISERFS_IOC_UNPACK, 1);
+	    }
+#endif	/* __linux__ && FSYS_REISERFS */
+
 	}
 #endif /* GRUB_UTIL */
       else