This was originally from:

  Date: Mon, 20 Jun 2005 11:44:34 +0200
  From: Jakub Jelinek <jakub at redhat dot com>
  Subject: [PATCH] Add RLIMIT_NICE and RLIMIT_RTPRIO
  Message-ID: <20050620094434.GV7663@sunsite.mff.cuni.cz>

I've fixed some typos that stopped RLIMIT_RTPRIO from working.

  -- Adam Sampson <ats@offog.org>

--- libc/sysdeps/unix/sysv/linux/bits/resource.h.jj	2004-08-30 12:04:01.000000000 +0200
+++ libc/sysdeps/unix/sysv/linux/bits/resource.h	2005-06-20 11:28:33.000000000 +0200
@@ -1,5 +1,5 @@
 /* Bit values & structures for resource limits.  Linux version.
-   Copyright (C) 1994, 1996, 1997, 1998, 1999, 2000, 2004
+   Copyright (C) 1994, 1996, 1997, 1998, 1999, 2000, 2004, 2005
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -89,7 +89,18 @@ enum __rlimit_resource
   __RLIMIT_MSGQUEUE = 12,
 #define RLIMIT_MSGQUEUE __RLIMIT_MSGQUEUE
 
-  __RLIMIT_NLIMITS = 13,
+  /* Maximum nice priority allowed to raise to.
+     Nice levels 19 .. -20 correspond to 0 .. 39
+     values of this resource limit.  */
+  __RLIMIT_NICE = 13,
+#define RLIMIT_NICE __RLIMIT_NICE
+
+  /* Maximum realtime priority allowed for non-priviledged
+     processes.  */
+  __RLIMIT_RTPRIO = 14,
+#define RLIMIT_RTPRIO __RLIMIT_RTPRIO
+
+  __RLIMIT_NLIMITS = 15,
   __RLIM_NLIMITS = __RLIMIT_NLIMITS
 #define RLIMIT_NLIMITS __RLIMIT_NLIMITS
 #define RLIM_NLIMITS __RLIM_NLIMITS
--- libc/sysdeps/unix/sysv/linux/alpha/bits/resource.h.jj	2004-08-30 12:04:01.000000000 +0200
+++ libc/sysdeps/unix/sysv/linux/alpha/bits/resource.h	2005-06-20 11:29:13.000000000 +0200
@@ -1,5 +1,5 @@
 /* Bit values & structures for resource limits.  Alpha/Linux version.
-   Copyright (C) 1994, 1996, 1997, 1998, 1999, 2000, 2004
+   Copyright (C) 1994, 1996, 1997, 1998, 1999, 2000, 2004, 2005
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -89,7 +89,18 @@ enum __rlimit_resource
   __RLIMIT_MSGQUEUE = 12,
 #define RLIMIT_MSGQUEUE __RLIMIT_MSGQUEUE
 
-  __RLIMIT_NLIMITS = 13,
+  /* Maximum nice priority allowed to raise to.
+     Nice levels 19 .. -20 correspond to 0 .. 39
+     values of this resource limit.  */
+  __RLIMIT_NICE = 13,
+#define RLIMIT_NICE __RLIMIT_NICE
+
+  /* Maximum realtime priority allowed for non-priviledged
+     processes.  */
+  __RLIMIT_RTPRIO = 14,
+#define RLIMIT_RTPRIO __RLIMIT_RTPRIO
+
+  __RLIMIT_NLIMITS = 15,
   __RLIM_NLIMITS = __RLIMIT_NLIMITS
 #define RLIMIT_NLIMITS __RLIMIT_NLIMITS
 #define RLIM_NLIMITS __RLIM_NLIMITS
--- libc/sysdeps/unix/sysv/linux/sparc/bits/resource.h.jj	2004-08-30 12:04:08.000000000 +0200
+++ libc/sysdeps/unix/sysv/linux/sparc/bits/resource.h	2005-06-20 11:30:51.000000000 +0200
@@ -1,5 +1,5 @@
 /* Bit values & structures for resource limits.  Linux/SPARC version.
-   Copyright (C) 1994, 1996, 1997, 1998, 1999, 2000, 2004
+   Copyright (C) 1994, 1996, 1997, 1998, 1999, 2000, 2004, 2005
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -89,7 +89,18 @@ enum __rlimit_resource
   __RLIMIT_MSGQUEUE = 12,
 #define RLIMIT_MSGQUEUE __RLIMIT_MSGQUEUE
 
-  __RLIMIT_NLIMITS = 13,
+  /* Maximum nice priority allowed to raise to.
+     Nice levels 19 .. -20 correspond to 0 .. 39
+     values of this resource limit.  */
+  __RLIMIT_NICE = 13,
+#define RLIMIT_NICE __RLIMIT_NICE
+
+  /* Maximum realtime priority allowed for non-priviledged
+     processes.  */
+  __RLIMIT_RTPRIO = 14,
+#define RLIMIT_RTPRIO __RLIMIT_RTPRIO
+
+  __RLIMIT_NLIMITS = 15,
   __RLIM_NLIMITS = __RLIMIT_NLIMITS
 #define RLIMIT_NLIMITS __RLIMIT_NLIMITS
 #define RLIM_NLIMITS __RLIM_NLIMITS
--- libc/sysdeps/unix/sysv/linux/mips/bits/resource.h.jj	2004-08-30 12:04:04.000000000 +0200
+++ libc/sysdeps/unix/sysv/linux/mips/bits/resource.h	2005-06-20 11:33:09.000000000 +0200
@@ -1,5 +1,5 @@
 /* Bit values & structures for resource limits.  Linux/MIPS version.
-   Copyright (C) 1994, 1996, 1997, 1998, 1999, 2000, 2004
+   Copyright (C) 1994, 1996, 1997, 1998, 1999, 2000, 2004, 2005
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -89,7 +89,18 @@ enum __rlimit_resource
   __RLIMIT_MSGQUEUE = 12,
 #define RLIMIT_MSGQUEUE __RLIMIT_MSGQUEUE
 
-  __RLIMIT_NLIMITS = 13,
+  /* Maximum nice priority allowed to raise to.
+     Nice levels 19 .. -20 correspond to 0 .. 39
+     values of this resource limit.  */
+  __RLIMIT_NICE = 13,
+#define RLIMIT_NICE __RLIMIT_NICE
+
+  /* Maximum realtime priority allowed for non-priviledged
+     processes.  */
+  __RLIMIT_RTPRIO = 14,
+#define RLIMIT_RTPRIO __RLIMIT_RTPRIO
+
+  __RLIMIT_NLIMITS = 15,
   __RLIM_NLIMITS = __RLIMIT_NLIMITS
 #define RLIMIT_NLIMITS __RLIMIT_NLIMITS
 #define RLIM_NLIMITS __RLIM_NLIMITS