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 D9265C4332F for ; Tue, 29 Mar 2022 12:41:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236531AbiC2Mnk (ORCPT ); Tue, 29 Mar 2022 08:43:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34490 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236516AbiC2Mmy (ORCPT ); Tue, 29 Mar 2022 08:42:54 -0400 Received: from mail-ed1-x54a.google.com (mail-ed1-x54a.google.com [IPv6:2a00:1450:4864:20::54a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AD285211ED2 for ; Tue, 29 Mar 2022 05:41:04 -0700 (PDT) Received: by mail-ed1-x54a.google.com with SMTP id j39-20020a05640223a700b0041992453601so8687090eda.1 for ; Tue, 29 Mar 2022 05:41:04 -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=km5owwejhlOXuN0CdtXT+rH3PwGCxkXBDIlOmz8F8mM=; b=BPBN+Gp/HybRIj+tr7lmAPtZ/gaSTg17YfV70uHe6dI4D03YCmDJ28J1xxu73jh2dk lunM+tJfRxIWWCTitc1zqeGcNO6ui2olt/ToR74zTeetb2t645zaZRfbXnEBWBeufQcz UZFI/a7dadkwv9KhIIRq4n83fNxSMacV6CuDKWLbiQmxkp72N4gUGhDLhrX/ZY/tzqb+ wwmGDuW3C5VDusIt/9kLL08QT9f400t0JOILiCvI+CWdGaKJ8/8ZTha18LD969Vanzph EmE7KmmpEFFeSjxO/yybRJOhoovSm59NPOFmQeJCjBwZk6WuGl9hl0wb88xwAHT3OeLk 9zLA== 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=km5owwejhlOXuN0CdtXT+rH3PwGCxkXBDIlOmz8F8mM=; b=eJD693b5qoUoNhtpy3Bw5+go/DrdVNB/H4y/x1QM8gzmBVDjKnFG4l7aMk0Rz5iChH d37sv4qj+I5QFOK63Ho4gU5GjwWGY4RVYWymITsDujSrICyefEG0giFhFUtbBrGdrMvA QRuFQBBN3cWEYsFJe0T3w8n9mkG4jDt75Aq8/JZwGxa0IPYAm0PA8nYp4kTxtGaKyGNJ +woz/YsybxEzfwMAPeoaTtcqTrqjjVELs1Uy6osShE5BdQoE090JqUVuR179V6gWxiZi WtHjG1SIGy3qipbmgCtgPU5yYUV5NRSwHPkF41N3K9+i2iCSJ+xqo/sW8BPMDr5BJb49 TuOQ== X-Gm-Message-State: AOAM5327aAmArZacX0gWgc4On4KlpL4jehrN4gn7Hv+ReSpLjm0xM10g RBJrYcHjHgSfo/iozQ91OXWHIheKCZk= X-Google-Smtp-Source: ABdhPJxTFdKgNMHXnOGxM/ndXx2ll4nIIoJnFlW5u5FSX6vDALAQ8Bv8xnOw9ZMBkOj50HuqwBsroT31ous= X-Received: from glider.muc.corp.google.com ([2a00:79e0:15:13:36eb:759:798f:98c3]) (user=glider job=sendgmr) by 2002:a05:6402:27c7:b0:41b:51ca:f542 with SMTP id c7-20020a05640227c700b0041b51caf542mr3174378ede.149.1648557657545; Tue, 29 Mar 2022 05:40:57 -0700 (PDT) Date: Tue, 29 Mar 2022 14:39:40 +0200 In-Reply-To: <20220329124017.737571-1-glider@google.com> Message-Id: <20220329124017.737571-12-glider@google.com> Mime-Version: 1.0 References: <20220329124017.737571-1-glider@google.com> X-Mailer: git-send-email 2.35.1.1021.g381101b075-goog Subject: [PATCH v2 11/48] 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 , 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-kernel@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 6f8ce114032d0..b50aecd1dd423 100644 --- a/drivers/nvdimm/nd.h +++ b/drivers/nvdimm/nd.h @@ -663,7 +663,7 @@ 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 58eda16f5c534..07a539195cc8b 100644 --- a/drivers/nvdimm/pfn_devs.c +++ b/drivers/nvdimm/pfn_devs.c @@ -785,7 +785,7 @@ 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 -- 2.35.1.1021.g381101b075-goog