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

From: Al Viro
Date: Mon Aug 01 2016 - 20:08:35 EST


On Mon, Aug 01, 2016 at 01:25:40PM -0400, robert.foss@xxxxxxxxxxxxx wrote:
> From: Scott James Remnant <scott@xxxxxxxxxx>
>
> 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.