On Tue, Jul 24, 2007 at 02:12:27PM +0200, Ingo Molnar wrote:

i've released the v2.6.23-rc1-rt0 kernel, which can be downloaded from 
the usual place:
 
   http://redhat.com/~mingo/realtime-preempt/

Hi Ingo,

  CC      kernel/latency_hist.o
  kernel/latency_hist.c: In function 'u64_div':
  kernel/latency_hist.c:54: error: implicit declaration of function 'do_div'
  make[1]: *** [kernel/latency_hist.o] Error 1
  make: *** [kernel] Error 2

This was needed to compile rt0 with LATENCY_TRACE on i386:

Add asm/div64.h header to define do_div()

Signed-off-by: Frederik Deweerdt <redacted>

--- kernel/latency_hist..ori	2007-07-24 16:04:20.000000000 +0200
+++ kernel/latency_hist.c	2007-07-24 16:04:50.000000000 +0200

@@ -15,6 +15,7 @@
 #include <linux/percpu.h>
 #include <linux/latency_hist.h>
 #include <asm/atomic.h>
+#include <asm/div64.h>
 
 typedef struct hist_data_struct {
 	atomic_t hist_mode; /* 0 log, 1 don't log */