From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1A6C1C2BB55 for ; Fri, 17 Apr 2020 07:10:30 +0000 (UTC) Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id EB239206D5 for ; Fri, 17 Apr 2020 07:10:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EB239206D5 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by silver.osuosl.org (Postfix) with ESMTP id B04AA20134; Fri, 17 Apr 2020 07:10:29 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from silver.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 06zF230t+YMY; Fri, 17 Apr 2020 07:10:28 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by silver.osuosl.org (Postfix) with ESMTP id 8549820526; Fri, 17 Apr 2020 07:10:28 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 59EE8C089E; Fri, 17 Apr 2020 07:10:28 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) by lists.linuxfoundation.org (Postfix) with ESMTP id 7C6CFC0172 for ; Fri, 17 Apr 2020 07:10:26 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by whitealder.osuosl.org (Postfix) with ESMTP id 7818B854E3 for ; Fri, 17 Apr 2020 07:10:26 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from whitealder.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id FrXeN5RsoBXj for ; Fri, 17 Apr 2020 07:10:26 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by whitealder.osuosl.org (Postfix) with ESMTPS id C9D9783204 for ; Fri, 17 Apr 2020 07:10:25 +0000 (UTC) Received: by verein.lst.de (Postfix, from userid 2407) id A82A768BEB; Fri, 17 Apr 2020 09:10:23 +0200 (CEST) Date: Fri, 17 Apr 2020 09:10:23 +0200 From: Christoph Hellwig To: Tom Lendacky Subject: Re: [patch 5/7] dma-pool: add pool sizes to debugfs Message-ID: <20200417071023.GC19153@lst.de> References: <0c7144e3-057a-959d-0b7d-4a718bd6076c@amd.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <0c7144e3-057a-959d-0b7d-4a718bd6076c@amd.com> User-Agent: Mutt/1.5.17 (2007-11-01) Cc: x86@kernel.org, Brijesh Singh , Jon Grimm , linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, Ingo Molnar , Borislav Petkov , David Rientjes , Thomas Gleixner , Christoph Hellwig X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On Wed, Apr 15, 2020 at 08:45:08AM -0500, Tom Lendacky wrote: > > > On 4/14/20 7:04 PM, David Rientjes wrote: >> The atomic DMA pools can dynamically expand based on non-blocking >> allocations that need to use it. >> >> Export the sizes of each of these pools, in bytes, through debugfs for >> measurement. >> >> Suggested-by: Christoph Hellwig >> Signed-off-by: David Rientjes >> --- >> kernel/dma/pool.c | 41 +++++++++++++++++++++++++++++++++++++++++ >> 1 file changed, 41 insertions(+) >> >> diff --git a/kernel/dma/pool.c b/kernel/dma/pool.c >> index cf052314d9e4..3e22022c933b 100644 >> --- a/kernel/dma/pool.c >> +++ b/kernel/dma/pool.c >> @@ -2,6 +2,7 @@ >> /* >> * Copyright (C) 2020 Google LLC >> */ >> +#include >> #include >> #include >> #include >> @@ -15,6 +16,11 @@ >> static struct gen_pool *atomic_pool_dma __ro_after_init; >> static struct gen_pool *atomic_pool_dma32 __ro_after_init; >> static struct gen_pool *atomic_pool_kernel __ro_after_init; >> +#ifdef CONFIG_DEBUG_FS > > I don't think you need the #ifdef any more unless you just want to save > space. All of the debugfs routines have versions for whether > CONFIG_DEBUG_FS is defined or not. Agreed. I can fix this up. _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu