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Date: Wed, 30 Sep 2015 22:36:39 +0200 (CEST) From: Thomas Gleixner <tglx@...utronix.de> To: Ingo Molnar <mingo@...nel.org> cc: Andy Lutomirski <luto@...capital.net>, Kees Cook <keescook@...omium.org>, Dmitry Vyukov <dvyukov@...gle.com>, Andrey Ryabinin <ryabinin.a.a@...il.com>, Ingo Molnar <mingo@...hat.com>, "H. Peter Anvin" <hpa@...or.com>, Andy Lutomirski <luto@...nel.org>, Borislav Petkov <bp@...en8.de>, Denys Vlasenko <dvlasenk@...hat.com>, "x86@...nel.org" <x86@...nel.org>, LKML <linux-kernel@...r.kernel.org>, Kostya Serebryany <kcc@...gle.com>, Alexander Potapenko <glider@...gle.com>, Andrey Konovalov <andreyknvl@...gle.com>, Sasha Levin <sasha.levin@...cle.com>, Andi Kleen <ak@...ux.intel.com>, kasan-dev <kasan-dev@...glegroups.com>, Linus Torvalds <torvalds@...ux-foundation.org>, Peter Zijlstra <a.p.zijlstra@...llo.nl>, Andrew Morton <akpm@...ux-foundation.org>, Al Viro <viro@...iv.linux.org.uk> Subject: Re: [PATCH v2] fs/proc: Don't expose absolute kernel addresses via wchan On Wed, 30 Sep 2015, Ingo Molnar wrote: > These days there's very little legitimate reason user-space > would be interested in the absolute address. The absolute > address is mostly historic: from the days when we didn't have > kallsyms and user-space procps had to do the decoding itself via > the System.map. > > So this patch sets all numeric output to 0 and keeps the > symbolic output in /proc/PID/wchan. Reviewed-by: Thomas Gleixner <tglx@...utronix.de> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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