* Mathieu Desnoyers ([EMAIL PROTECTED]) wrote:
> * Andrew Morton ([EMAIL PROTECTED]) wrote:
> > 
> > fyi, I have this on hold because I spotted spufs build breakage,
> > but I haven't had time to investigate.  powerpc allmodconfig, iirc.
> 
> Christoph told me he would update his sputrace accordingly. Christoph,
> should I do the changes or let you do it ?
> 
> It's mostly the probe function prototype which changes from 
> 
> -typedef void marker_probe_func(const struct marker *mdata,
> -       void *private_data, const char *fmt, ...);
> 
> to
> 
> +typedef void marker_probe_func(void *probe_private, void *call_private,
> +               const char *fmt, va_list *args);
> 
> Where you receive an already ready va_list instead of having to call
> va_start/va_end in the probe.
> 
> Also, there is no more marker_arm/marker_disarm. It is now automatically
> done upon register/unregister.
> 
> Mathieu
> 

Update spufs to the new linux kernel markers API, which supports connecting
more than one probe to a single marker.

(compile-tested only)

Signed-off-by: Mathieu Desnoyers <[EMAIL PROTECTED]>
CC: Christoph Hellwig <[EMAIL PROTECTED]>
CC: "Frank Ch. Eigler" <[EMAIL PROTECTED]>
CC: Steven Rostedt <[EMAIL PROTECTED]>
CC: Andrew Morton <[EMAIL PROTECTED]>
---
 arch/powerpc/platforms/cell/spufs/sputrace.c |   31 +++++++++------------------
 1 file changed, 11 insertions(+), 20 deletions(-)

Index: linux-2.6-lttng/arch/powerpc/platforms/cell/spufs/sputrace.c
===================================================================
--- linux-2.6-lttng.orig/arch/powerpc/platforms/cell/spufs/sputrace.c   
2008-02-12 15:07:25.000000000 -0500
+++ linux-2.6-lttng/arch/powerpc/platforms/cell/spufs/sputrace.c        
2008-02-12 15:11:39.000000000 -0500
@@ -146,34 +146,28 @@
        wake_up(&sputrace_wait);
 }
 
-static void spu_context_event(const struct marker *mdata,
-               void *private, const char *format, ...)
+static void spu_context_event(void *probe_private, void *call_data,
+               const char *format, va_list *args)
 {
-       struct spu_probe *p = mdata->private;
-       va_list ap;
+       struct spu_probe *p = probe_private;
        struct spu_context *ctx;
        struct spu *spu;
 
-       va_start(ap, format);
-       ctx = va_arg(ap, struct spu_context *);
-       spu = va_arg(ap, struct spu *);
+       ctx = va_arg(*args, struct spu_context *);
+       spu = va_arg(*args, struct spu *);
 
        sputrace_log_item(p->name, ctx, spu);
-       va_end(ap);
 }
 
-static void spu_context_nospu_event(const struct marker *mdata,
-               void *private, const char *format, ...)
+static void spu_context_nospu_event(void *probe_private, void *call_data,
+               const char *format, va_list *args)
 {
-       struct spu_probe *p = mdata->private;
-       va_list ap;
+       struct spu_probe *p = probe_private;
        struct spu_context *ctx;
 
-       va_start(ap, format);
-       ctx = va_arg(ap, struct spu_context *);
+       ctx = va_arg(*args, struct spu_context *);
 
        sputrace_log_item(p->name, ctx, NULL);
-       va_end(ap);
 }
 
 struct spu_probe spu_probes[] = {
@@ -219,10 +213,6 @@
                if (error)
                        printk(KERN_INFO "Unable to register probe %s\n",
                                        p->name);
-
-               error = marker_arm(p->name);
-               if (error)
-                       printk(KERN_INFO "Unable to arm probe %s\n", p->name);
        }
 
        return 0;
@@ -238,7 +228,8 @@
        int i;
 
        for (i = 0; i < ARRAY_SIZE(spu_probes); i++)
-               marker_probe_unregister(spu_probes[i].name);
+               marker_probe_unregister(spu_probes[i].name,
+                       spu_probes[i].probe_func, &spu_probes[i]);
 
        remove_proc_entry("sputrace", NULL);
        kfree(sputrace_log);


-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
--
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