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Message-ID: <alpine.DEB.2.10.1611171035480.2913@hadrien>
Date: Thu, 17 Nov 2016 10:36:47 +0100 (CET)
From: Julia Lawall <julia.lawall@...6.fr>
To: Peter Zijlstra <peterz@...radead.org>
cc: "Reshetova, Elena" <elena.reshetova@...el.com>,
Rik van Riel <riel@...hat.com>,
"kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com>,
Will Deacon <will.deacon@....com>, Greg KH <gregkh@...uxfoundation.org>,
David Windsor <dave@...gbits.org>, Arnd Bergmann <arnd@...db.de>,
Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>,
"Anvin, H Peter" <h.peter.anvin@...el.com>
Subject: Re: Re: [RFC v4 PATCH 00/13] HARDENED_ATOMIC
On Thu, 17 Nov 2016, Peter Zijlstra wrote:
> On Wed, Nov 16, 2016 at 05:34:48PM +0000, Reshetova, Elena wrote:
>
> > I have a coccinelle rule now that found about 15 usages of it.
>
> Right, so can coccinelle detect the call_rcu/free call that is
> conditional on the dec_and_test when its hidden inside a few function
> calls?
>
> Also, we should really have a "make spatch" target so that we can run
> the thing concurrently with -j80 or somesuch, because as is coccinelle
> is unbearably slow.
In the kernel, there is already the make coccicheck infrastructure. It
suffices to add the semantic patch to a subdirectory of
scripts/coccinelle.
julia
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