From patchwork Tue Apr 26 16:42:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Potapenko X-Patchwork-Id: 12827493 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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 559EAC4332F for ; Tue, 26 Apr 2022 16:44:51 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id E396A6B0088; Tue, 26 Apr 2022 12:44:50 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id DEB066B0089; Tue, 26 Apr 2022 12:44:50 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C8C616B008A; Tue, 26 Apr 2022 12:44:50 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay.hostedemail.com [64.99.140.27]) by kanga.kvack.org (Postfix) with ESMTP id BB4D76B0088 for ; Tue, 26 Apr 2022 12:44:50 -0400 (EDT) Received: from smtpin01.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id A1BE420D56 for ; Tue, 26 Apr 2022 16:44:50 +0000 (UTC) X-FDA: 79399604340.01.C896D9E Received: from mail-ej1-f73.google.com (mail-ej1-f73.google.com [209.85.218.73]) by imf31.hostedemail.com (Postfix) with ESMTP id 6123B2005A for ; Tue, 26 Apr 2022 16:44:42 +0000 (UTC) Received: by mail-ej1-f73.google.com with SMTP id sh14-20020a1709076e8e00b006f3b7adb9ffso1013709ejc.16 for ; Tue, 26 Apr 2022 09:44:49 -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=SEm8RFoD3mzqXjcHWM9Z/XfNnVTnRxEBaTJIwFUC6FI=; b=V1UPpoK10uyPLSVeGxmKmWLpz7MVRMo+4uiBOQTE+btQjeiF7bX14i8xIN4hWxvfsI BKp6ezW66yD/fgl4XMpuBdON6QxtTZCTto768iFnXFc2LH7l5QwZpTox8pUyK0cZZMcU 9diZqYTWDNczn8waY+ysJcw4lWMp4tfA90aPMraK8ja0L3fYlvQlBZsap+cS3cIoYkUy i+K1sOjum2D1Snfi9ezBpkT3FqJQbpZ1ZkJb010JMdv/VFlzNAOneWXO4NmYGXJdCYB8 LxjKRUcmGqytLknAlHvn7Ijdu7TEekTSbAaIp3JV0enFaH8f7pcQ4jDbiUGAEReAXkN8 4fmA== 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=SEm8RFoD3mzqXjcHWM9Z/XfNnVTnRxEBaTJIwFUC6FI=; b=kVHA7A7Bf+nfdkeJZcyJIqRxCB2VSj00z1LHMkLp+A6gCZpIRq9qXRPbsyybHDVqRn ZOwEkfuePi2QknEGoykWqWSyG+PSfgReyWtZHd6PVSO4DFROHUQfOfitmIlt7xb5lcUL L4KOKQizYhjTZWCJD0dTDEC7ynQ7AdeG/9POJrIuncHlpMUM0pMNVKkr5z43QbAt+39i Lvt07ZHpemaj9QY6qTFMEZ9+ri9fMR49bDJkbD/wG13MnTi1AHXcX/6o4rHJchsPtyQ6 cAkUzB9qFAFKR4MiWcV/zoDHVGmkA7HMGf/YigAVJO29ZMWm99q2rdSc/acOpAaDy+pE PRCg== X-Gm-Message-State: AOAM531NlhdEguHY6NuEy2y4tge0/r4WDE4E1NJcqH6Fr0VvJOahkPwC MY7jwS2fjBlrrp1IyynzIe3POtd/+yc= X-Google-Smtp-Source: ABdhPJzlxnxEzq09x8VRCHG67jl1BT+tZuNt6ukFhmOsg7s6+uxFS5/FlyCj/NdcpcGzVA6sRk/t/wnlBr4= X-Received: from glider.muc.corp.google.com ([2a00:79e0:15:13:d580:abeb:bf6d:5726]) (user=glider job=sendgmr) by 2002:a05:6402:35d2:b0:424:1eb0:45c2 with SMTP id z18-20020a05640235d200b004241eb045c2mr25704880edc.152.1650991488637; Tue, 26 Apr 2022 09:44:48 -0700 (PDT) Date: Tue, 26 Apr 2022 18:42:40 +0200 In-Reply-To: <20220426164315.625149-1-glider@google.com> Message-Id: <20220426164315.625149-12-glider@google.com> Mime-Version: 1.0 References: <20220426164315.625149-1-glider@google.com> X-Mailer: git-send-email 2.36.0.rc2.479.g8af0fa9b8e-goog Subject: [PATCH v3 11/46] libnvdimm/pfn_dev: increase MAX_STRUCT_PAGE_SIZE From: Alexander Potapenko To: glider@google.com Cc: Alexander Viro , 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 X-Rspam-User: X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 6123B2005A X-Stat-Signature: hgqrdco4pokt65ugnfs8sdd4c5gq7mqb Authentication-Results: imf31.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=V1UPpoK1; spf=pass (imf31.hostedemail.com: domain of 3gCFoYgYKCH0hmjefshpphmf.dpnmjovy-nnlwbdl.psh@flex--glider.bounces.google.com designates 209.85.218.73 as permitted sender) smtp.mailfrom=3gCFoYgYKCH0hmjefshpphmf.dpnmjovy-nnlwbdl.psh@flex--glider.bounces.google.com; dmarc=pass (policy=reject) header.from=google.com X-HE-Tag: 1650991482-60131 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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 c31e184bfa45e..d51a3cd6581b1 100644 --- a/drivers/nvdimm/pfn_devs.c +++ b/drivers/nvdimm/pfn_devs.c @@ -784,7 +784,7 @@ 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