diff -urN linux-2.4.19-pre8-ac5-rml/include/asm-i386/bitops.h linux/include/asm-i386/bitops.h
--- linux-2.4.19-pre8-ac5-rml/include/asm-i386/bitops.h	Mon May 20 14:07:09 2002
+++ linux/include/asm-i386/bitops.h	Mon May 20 14:08:56 2002
@@ -428,7 +428,7 @@
  * unlikely to be set. It's guaranteed that at least one of the 140
  * bits is cleared.
  */
-static inline int sched_find_first_bit(unsigned long *b)
+static inline int _sched_find_first_bit(unsigned long *b)
 {
 	if (unlikely(b[0]))
 		return __ffs(b[0]);
diff -urN linux-2.4.19-pre8-ac5-rml/include/linux/sched.h linux/include/linux/sched.h
--- linux-2.4.19-pre8-ac5-rml/include/linux/sched.h	Mon May 20 14:07:07 2002
+++ linux/include/linux/sched.h	Mon May 20 14:10:19 2002
@@ -162,6 +162,36 @@
 extern int current_is_keventd(void);
 
 /*
+ * Priority of a process goes from 0..MAX_PRIO-1, valid RT
+ * priority is 0..MAX_RT_PRIO-1, and SCHED_OTHER tasks are
+ * in the range MAX_RT_PRIO..MAX_PRIO-1. Priority values
+ * are inverted: lower p->prio value means higher priority.
+ *
+ * The MAX_RT_USER_PRIO value allows the actual maximum
+ * RT priority to be separate from the value exported to
+ * user-space.  This allows kernel threads to set their
+ * priority to a value higher than any user task. Note:
+ * MAX_RT_PRIO must not be smaller than MAX_USER_RT_PRIO.
+ */
+
+#define MAX_USER_RT_PRIO	100
+#define MAX_RT_PRIO		MAX_USER_RT_PRIO
+
+#define MAX_PRIO		(MAX_RT_PRIO + 40)
+
+/*
+ * The maximum RT priority is configurable.  If the resulting
+ * bitmap is 160-bits , we can use a hand-coded routine which
+ * is optimal.  Otherwise, we fall back on a generic routine for
+ * finding the first set bit from an arbitrarily-sized bitmap.
+ */
+#if MAX_PRIO < 160 && MAX_PRIO > 127
+#define sched_find_first_bit(map)	_sched_find_first_bit(map)
+#else
+#define sched_find_first_bit(map)	find_first_bit(map, MAX_PRIO)
+#endif
+
+/*
  * The default fd array needs to be at least BITS_PER_LONG,
  * as this is the granularity returned by copy_fdset().
  */
@@ -478,8 +508,8 @@
     addr_limit:		KERNEL_DS,					\
     exec_domain:	&default_exec_domain,				\
     lock_depth:		-1,						\
-    prio:		120,						\
-    static_prio:	120,						\
+    prio:		MAX_PRIO-20,					\
+    static_prio:	MAX_PRIO-20,					\
     policy:		SCHED_OTHER,					\
     cpus_allowed:	-1,						\
     mm:			NULL,						\
diff -urN linux-2.4.19-pre8-ac5-rml/kernel/sched.c linux/kernel/sched.c
--- linux-2.4.19-pre8-ac5-rml/kernel/sched.c	Mon May 20 14:07:07 2002
+++ linux/kernel/sched.c	Mon May 20 14:08:47 2002
@@ -26,20 +26,6 @@
 #include <linux/kernel_stat.h>
 
 /*
- * Priority of a process goes from 0 to 139. The 0-99
- * priority range is allocated to RT tasks, the 100-139
- * range is for SCHED_OTHER tasks. Priority values are
- * inverted: lower p->prio value means higher priority.
- * 
- * MAX_USER_RT_PRIO allows the actual maximum RT priority
- * to be separate from the value exported to user-space.
- * NOTE: MAX_RT_PRIO must not be smaller than MAX_USER_RT_PRIO.
- */
-#define MAX_RT_PRIO		100
-#define MAX_USER_RT_PRIO	100
-#define MAX_PRIO		(MAX_RT_PRIO + 40)
-
-/*
  * Convert user-nice values [ -20 ... 0 ... 19 ]
  * to static priority [ MAX_RT_PRIO..MAX_PRIO-1 ],
  * and back.