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Date: Mon, 1 Aug 2016 19:10:14 +0100
From: Al Viro <viro@ZenIV.linux.org.uk>
To: robert.foss@collabora.com
Cc: rostedt@goodmis.org, mingo@redhat.com, scott@ubuntu.com,
        linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: [PACTH v1] trace: Add trace events for open(), exec() and
 uselib()
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On Mon, Aug 01, 2016 at 01:25:40PM -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.

NAK.  No Tracepoints In VFS.  Not going to happen - any tracepoint can all too
easily become a cast-in-stone userland ABI.