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

From: Andrew Morton
Date: Sat Mar 21 2009 - 04:47:34 EST


On Sat, 21 Mar 2009 08:43:01 +0100 Ingo Molnar <mingo@xxxxxxx> wrote:

>
> * Roland McGrath <roland@xxxxxxxxxx> wrote:
>
> > From: Frank Ch. Eigler <fche@xxxxxxxxxx>
> >
> > 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.
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