Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1764627AbZDAAKw (ORCPT ); Tue, 31 Mar 2009 20:10:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761314AbZDAAKU (ORCPT ); Tue, 31 Mar 2009 20:10:20 -0400 Received: from hera.kernel.org ([140.211.167.34]:51483 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1762322AbZDAAKT (ORCPT ); Tue, 31 Mar 2009 20:10:19 -0400 Message-ID: <49D2B07F.80502@kernel.org> Date: Wed, 01 Apr 2009 09:08:31 +0900 From: Tejun Heo User-Agent: Thunderbird 2.0.0.19 (X11/20081227) MIME-Version: 1.0 To: Martin Schwidefsky CC: mingo@elte.hu, rusty@rustcorp.com.au, tglx@linutronix.de, x86@kernel.org, linux-kernel@vger.kernel.org, hpa@zytor.com, Paul Mundt , rmk@arm.linux.org.uk, starvik@axis.com, ralf@linux-mips.org, davem@davemloft.net, cooloney@kernel.org, kyle@mcmartin.ca, matthew@wil.cx, grundler@parisc-linux.org, takata@linux-m32r.org, benh@kernel.crashing.org, rth@twiddle.net, ink@jurassic.park.msu.ru, heiko.carstens@de.ibm.com Subject: Re: [PATCH UPDATED] percpu: use dynamic percpu allocator as the default percpu allocator References: <1236671631-9305-1-git-send-email-tj@kernel.org> <20090316190132.7965a49a@skybase> <49C300D8.5080204@kernel.org> <49C8FAC4.6060508@kernel.org> <20090325122738.42d105b7@skybase> <49CA1AC3.9080908@kernel.org> <20090325150035.541e707a@skybase> <49CA3C2C.5030702@kernel.org> <49D099F0.3000807@kernel.org> <20090330124211.2476207c@skybase> In-Reply-To: <20090330124211.2476207c@skybase> X-Enigmail-Version: 0.95.7 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.0 (hera.kernel.org [127.0.0.1]); Wed, 01 Apr 2009 00:08:35 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1339 Lines: 37 Hello, Martin Schwidefsky wrote: > On Mon, 30 Mar 2009 19:07:44 +0900 > Tejun Heo wrote: > >> Okay, this should keep s390 and alpha working till proper solution is >> found. Martin, can you please verify? Ingo, please feel free to push >> this upstream (or -next) once Martin acks. > > Looks good, everything compiles and the static per-cpu variables are > resolved via GOTENT: > > Acked-by: Martin Schwidefsky Thanks. > For the proper solution, the easiest fix is imho to define a > variant of SHIFT_PERCPU_PTR. The macro is currently used for dynamic > pointers and for per-cpu symbols. We only want to use the GOTENT > indirection for per-cpu symbols. So why don't we split it into > 1) SHIFT_PERCPU_SYMBOL for per-cpu symbols and > 2) SHIFT_PERCPU_PTR for dynamically allocated pointers? > For s390 the first would be the current SHIFT_PERCPU_PTR macro, the > second would be a simple RELOC_HIDE. The patch would be really > short .. Eh... I wrote in the other reply but unifying the two is kind of one of the main goals, so.... -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/