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Date: Thu, 23 Nov 2017 14:47:43 +0100
From: Michal Hocko <mhocko@kernel.org>
Subject: Re: [PATCH] Add slowpath enter/exit trace events
Message-ID: <20171123134743.rllnw4u4b73kfrre@dhcp22.suse.cz>
References: <20171123104336.25855-1-peter.enderborg@sony.com>
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To: peter enderborg <peter.enderborg@sony.com>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Steven Rostedt <rostedt@goodmis.org>, Ingo Molnar <mingo@redhat.com>, Alex Deucher <alexander.deucher@amd.com>, "David S . Miller" <davem@davemloft.net>, Harry Wentland <Harry.Wentland@amd.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Tony Cheng <Tony.Cheng@amd.com>, Andrew Morton <akpm@linux-foundation.org>, Vlastimil Babka <vbabka@suse.cz>, Mel Gorman <mgorman@techsingularity.net>, Johannes Weiner <hannes@cmpxchg.org>, Pavel Tatashin <pasha.tatashin@oracle.com>

On Thu 23-11-17 14:03:04, peter enderborg wrote:
> On 11/23/2017 01:47 PM, Michal Hocko wrote:
> >
> > This might be true but the other POV is that the trace point with the
> > additional information is just too disruptive to the rest of the code
> > and it exposes too many implementation details.
> 
> From who do you want to hide details? Is this a security thing? I
> don't understand this  argument.  Tracefs is not part of uapi,
> right?

Linus would disagree https://lwn.net/Articles/737530/

-- 
Michal Hocko
SUSE Labs

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