[PATCH 3/3] utrace-based ftrace "process" engine, v2

[Andrew Morton]

On Sat, 21 Mar 2009 08:43:01 +0100 Ingo Molnar <mingo at elte.hu> wrote:

> 
> * Roland McGrath <roland at redhat.com> wrote:
> 
> > From: Frank Ch. Eigler <fche at redhat.com>
> > 
> > This is v2 of the prototype utrace-ftrace interface.  This code is 
> > based on Roland McGrath's utrace API, which provides programmatic 
> > hooks to the in-tree tracehook layer.  This new patch interfaces 
> > many of those events to ftrace, as configured by a small number of 
> > debugfs controls.  Here's the 
> > /debugfs/tracing/process_trace_README:
> 
> Please submit changes/enhancements to kernel/trace/* to the tracing 
> tree maintainers (Steve and me) for review, testing and integration.
> 
> Please also post patches against the latest tracing tree:
> 
>    http://people.redhat.com/mingo/tip.git/README

uhm, this patch depends on the (large) utrace patch, which is not kernel/trace
material.

> As this patch does not apply:
> 
>  Applying patch patches/utrace-based-ftrace-process-engine-v2.patch
>  patching file include/linux/processtrace.h
>  patching file kernel/trace/Kconfig
>  Hunk #1 succeeded at 186 with fuzz 2 (offset 36 lines).
>  patching file kernel/trace/Makefile
>  Hunk #1 FAILED at 33.
>  1 out of 1 hunk FAILED -- rejects in file kernel/trace/Makefile
>  patching file kernel/trace/trace.h
>  Hunk #1 succeeded at 7 with fuzz 1.
>  Hunk #2 FAILED at 31.
>  Hunk #3 succeeded at 215 with fuzz 2 (offset 43 lines).
>  Hunk #4 FAILED at 330.
>  2 out of 4 hunks FAILED -- rejects in file kernel/trace/trace.h
>  patching file kernel/trace/trace_process.c
>  Patch patches/utrace-based-ftrace-process-engine-v2.patch does not apply (enforce with -f)

The rejects are trivial.