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Re: [PACTH v1] trace: Add trace events for open(), exec() and uselib()

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On Mon, Aug 01, 2016 at 01:44:53PM -0400, Steven Rostedt wrote:
> On Mon,  1 Aug 2016 13:25:40 -0400
> robert.foss@collabora.com wrote:
> 
> > From: Scott James Remnant <scott@ubuntu.com>
> > 
> > This patch uses TRACE_EVENT to add tracepoints for the open(),
> > exec() and uselib() syscalls so that ureadahead can cheaply trace
> > the boot sequence to determine what to read to speed up the next.
> > 
> 
> Good luck. AFAIK, Viro refuses to have tracepoints in the vfs subsystem.

Damn right.  Somebody wants to use those as private debugging patches -
sure, that's what the mechanism is good for.  Just keep them in your
test builds, where *you* will be responsible for keeping them working, etc.

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[PACTH v1] trace: Add trace events for open(), exec() and uselib() robert.foss@collabora.com - 2016-08-01 19:30 +0200
  Re: [PACTH v1] trace: Add trace events for open(), exec() and  uselib() Al Viro <viro@ZenIV.linux.org.uk> - 2016-08-01 20:20 +0200
  Re: [PACTH v1] trace: Add trace events for open(), exec() and  uselib() Steven Rostedt <rostedt@goodmis.org> - 2016-08-01 20:30 +0200
  Re: [PACTH v1] trace: Add trace events for open(), exec() and  uselib() Robert Foss <robert.foss@collabora.com> - 2016-08-01 22:00 +0200
    Re: [PACTH v1] trace: Add trace events for open(), exec() and  uselib() Steven Rostedt <rostedt@goodmis.org> - 2016-08-01 23:00 +0200
  Re: [PACTH v1] trace: Add trace events for open(), exec() and  uselib() Al Viro <viro@ZenIV.linux.org.uk> - 2016-08-02 02:10 +0200
    Re: [PACTH v1] trace: Add trace events for open(), exec() and  uselib() Ingo Molnar <mingo@kernel.org> - 2016-08-02 10:30 +0200

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