Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751773AbbL0KYc (ORCPT ); Sun, 27 Dec 2015 05:24:32 -0500 Received: from mail.skyhub.de ([78.46.96.112]:42474 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750957AbbL0KYa (ORCPT ); Sun, 27 Dec 2015 05:24:30 -0500 Date: Sun, 27 Dec 2015 11:24:06 +0100 From: Borislav Petkov To: Minfei Huang , Toshi Kani Cc: linux-arch@vger.kernel.org, linux-nvdimm@ml01.01.org, x86@kernel.org, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, akpm@linux-foundation.org, Dave Young , Dan Williams Subject: Re: [PATCH v2 14/16] x86, nvdimm, kexec: Use walk_iomem_res_desc() for iomem search Message-ID: <20151227102406.GB19398@nazgul.tnic> References: <1451081365-15190-1-git-send-email-toshi.kani@hpe.com> <1451081365-15190-14-git-send-email-toshi.kani@hpe.com> <20151226103804.GB21988@pd.tnic> <567F315B.8080005@hpe.com> <20151227021257.GA13560@dhcp-128-25.nay.redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20151227021257.GA13560@dhcp-128-25.nay.redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1051 Lines: 30 On Sun, Dec 27, 2015 at 10:12:57AM +0800, Minfei Huang wrote: > You can refer the below link that you may get a clue about GART. This is > the fisrt time kexec-tools tried to support to ignore GART region in 2nd > kernel. > > http://lists.infradead.org/pipermail/kexec/2008-December/003096.html So theoretically we could export that IORES_DESC* enum in an uapi header and move kexec-tools to use that. However, I'm fuzzy on how exactly the whole compatibility thing is done with kexec-tools and the kernel. We probably would have to support newer kexec-tools on an older kernel and vice versa so I'd guess we should mark walk_iomem_res() deprecated so that people are encouraged to upgrade to newer kexec-tools... Hmmm. -- Regards/Gruss, Boris. ECO tip #101: Trim your mails when you reply. -- -- 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/