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Subject: Re: [PATCH] Add slowpath enter/exit trace events
References: <20171123104336.25855-1-peter.enderborg@sony.com>
 <20171123122530.ktsxgeakebfp3yep@dhcp22.suse.cz>
 <ef88ca71-b41b-f5e9-fd41-d02676bad1cf@sony.com>
 <20171123124738.nj7foesbajo42t3g@dhcp22.suse.cz>
From: peter enderborg <peter.enderborg@sony.com>
Message-ID: <e9d1b05d-0188-6c98-7247-d43467fa73f5@sony.com>
Date: Thu, 23 Nov 2017 14:03:04 +0100
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Sender: owner-linux-mm@kvack.org
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To: Michal Hocko <mhocko@kernel.org>
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 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 und=
erstand this=C2=A0 argument.=C2=A0 Tracefs is not part of uapi, right?

Hopefully there are not that many fails, and they might be very hard to rep=
roduce if you don't know what you are looking for.

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