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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 70998C43334 for ; Fri, 1 Jul 2022 14:24:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232308AbiGAOYz (ORCPT ); Fri, 1 Jul 2022 10:24:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38494 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231781AbiGAOYN (ORCPT ); Fri, 1 Jul 2022 10:24:13 -0400 Received: from mail-ej1-x649.google.com (mail-ej1-x649.google.com [IPv6:2a00:1450:4864:20::649]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 410DD3C4A6 for ; Fri, 1 Jul 2022 07:23:45 -0700 (PDT) Received: by mail-ej1-x649.google.com with SMTP id gr1-20020a170906e2c100b006fefea3ec0aso838639ejb.14 for ; Fri, 01 Jul 2022 07:23:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=AkHvx6ZxtZ0IjsJvZfH9AmZNAyLy9uG4lwf6iPpek9Y=; b=rHudIZCMEvVcL0J/tpORMCU1TSzScrZ6kJnwi8au7+a6JF30h8PGv5ybkos7NSpKVF l8ItJ4ldc7rg9EUkrGxk8hBljzCbzYjQgUwA1nGDUYpjSYBpSv1cZheZLHTOEc3UGcpz GN3MhPn5PyMEGYWYnmCKoNlKEkO4c/obwSOro9mv0hP92gHSxiMzcqtoWoMzuEAzed2q wII50gyDZqPcOzaGsoh2O4Imju9tw8/pg9ZgJAzo8hKdBhlLYoNWrG5KLaa/L/jFhzEF QS0SOmwTV1hAlRt1ITxae7Jk30DIUPW7GuCpXSA6Yvjsk9qUvcwrEZ8Tfb30DarFex/+ W40w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=AkHvx6ZxtZ0IjsJvZfH9AmZNAyLy9uG4lwf6iPpek9Y=; b=nE/ZUhC/8kSGiOvU4o0np1T9VbFsXRSNcm4+R0GsZqCmnpppPg2CVUJbLxC60VSg94 kNFfzxAxTc08BnJOlHo9oGyQ0VR5PGFf3QqH5gmHOjksESC3m0tzHuYY0J6zBUcsH96N XeX/YAmh/Kvl3eneEgWTIX99I3Kw4N/H1xDtgfVXa4Yu2VjyudRYujN/S/dHG60oSZAY /A6nLBbHvxgHSm1WLZYnKNmgVgjmadRvIAvIamO7fLo5ptuqmfz5hCF57WrXOwhSI+5T HaWmZKIi+muulcvmed/SXDEFSGM/uGQRR9xAxJU0NITHNhVv9Xmr+qdXUUl5231AKIrZ OFLg== X-Gm-Message-State: AJIora/w+JInCltp9bA7rHqFiMQYIz5aNukb61AAFRgf11ak/SN0TLt0 ABNiH6VdnbDSsaA4FSEFLqAJNTnklPU= X-Google-Smtp-Source: AGRyM1s+kuVh9fols3fC269jhlEDP/Rp/CRoJ+oGxYSY9r03d5HAcg3xOh5GvCrJCoCJuu3kbfRaEWJ10XY= X-Received: from glider.muc.corp.google.com ([2a00:79e0:9c:201:a6f5:f713:759c:abb6]) (user=glider job=sendgmr) by 2002:a50:fe83:0:b0:437:9c60:12f3 with SMTP id d3-20020a50fe83000000b004379c6012f3mr19071968edt.120.1656685423650; Fri, 01 Jul 2022 07:23:43 -0700 (PDT) Date: Fri, 1 Jul 2022 16:22:35 +0200 In-Reply-To: <20220701142310.2188015-1-glider@google.com> Message-Id: <20220701142310.2188015-11-glider@google.com> Mime-Version: 1.0 References: <20220701142310.2188015-1-glider@google.com> X-Mailer: git-send-email 2.37.0.rc0.161.g10f37bed90-goog Subject: [PATCH v4 10/45] libnvdimm/pfn_dev: increase MAX_STRUCT_PAGE_SIZE From: Alexander Potapenko To: glider@google.com Cc: Alexander Viro , Alexei Starovoitov , Andrew Morton , Andrey Konovalov , Andy Lutomirski , Arnd Bergmann , Borislav Petkov , Christoph Hellwig , Christoph Lameter , David Rientjes , Dmitry Vyukov , Eric Dumazet , Greg Kroah-Hartman , Herbert Xu , Ilya Leoshkevich , Ingo Molnar , Jens Axboe , Joonsoo Kim , Kees Cook , Marco Elver , Mark Rutland , Matthew Wilcox , "Michael S. Tsirkin" , Pekka Enberg , Peter Zijlstra , Petr Mladek , Steven Rostedt , Thomas Gleixner , Vasily Gorbik , Vegard Nossum , Vlastimil Babka , kasan-dev@googlegroups.com, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org KMSAN adds extra metadata fields to struct page, so it does not fit into 64 bytes anymore. Signed-off-by: Alexander Potapenko --- Link: https://linux-review.googlesource.com/id/I353796acc6a850bfd7bb342aa1b63e616fc614f1 --- drivers/nvdimm/nd.h | 2 +- drivers/nvdimm/pfn_devs.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/nvdimm/nd.h b/drivers/nvdimm/nd.h index ec5219680092d..85ca5b4da3cf3 100644 --- a/drivers/nvdimm/nd.h +++ b/drivers/nvdimm/nd.h @@ -652,7 +652,7 @@ void devm_namespace_disable(struct device *dev, struct nd_namespace_common *ndns); #if IS_ENABLED(CONFIG_ND_CLAIM) /* max struct page size independent of kernel config */ -#define MAX_STRUCT_PAGE_SIZE 64 +#define MAX_STRUCT_PAGE_SIZE 128 int nvdimm_setup_pfn(struct nd_pfn *nd_pfn, struct dev_pagemap *pgmap); #else static inline int nvdimm_setup_pfn(struct nd_pfn *nd_pfn, diff --git a/drivers/nvdimm/pfn_devs.c b/drivers/nvdimm/pfn_devs.c index 0e92ab4b32833..61af072ac98f9 100644 --- a/drivers/nvdimm/pfn_devs.c +++ b/drivers/nvdimm/pfn_devs.c @@ -787,7 +787,7 @@ static int nd_pfn_init(struct nd_pfn *nd_pfn) * when populating the vmemmap. This *should* be equal to * PMD_SIZE for most architectures. * - * Also make sure size of struct page is less than 64. We + * Also make sure size of struct page is less than 128. We * want to make sure we use large enough size here so that * we don't have a dynamic reserve space depending on * struct page size. But we also want to make sure we notice -- 2.37.0.rc0.161.g10f37bed90-goog