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 3607DC53210 for ; Thu, 5 Jan 2023 10:19:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232715AbjAEKTr (ORCPT ); Thu, 5 Jan 2023 05:19:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40156 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232598AbjAEKTN (ORCPT ); Thu, 5 Jan 2023 05:19:13 -0500 Received: from mail-yb1-xb49.google.com (mail-yb1-xb49.google.com [IPv6:2607:f8b0:4864:20::b49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8234A50156 for ; Thu, 5 Jan 2023 02:19:00 -0800 (PST) Received: by mail-yb1-xb49.google.com with SMTP id a4-20020a5b0004000000b006fdc6aaec4fso36882267ybp.20 for ; Thu, 05 Jan 2023 02:19:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=QisuvGCTCnQrC46aY73QASoWAbEZFo7ff5Vj8AOV5D4=; b=D05RGKnu5npzQ4+IoIOCUoopJdHBZlGdmzR7wKgjiYJ7fpsPJXuc7/AVMHrkDHqo2o RNix7ExBJuxdhCqhn48A5PCySgryuQc3GCHIVd9cC5LTv0Q9aGo5YYJG8Ce+XT9OpeXk M3IL0FBVE2YUx+rEwav3paVke2g6M0EhpZNkkEWcM4bLj0uxgg8utb4DdIrHzftCy4tA Kij4pO4w0SwaaYqXSHOVWmgJ+wQsZ23Y9Y/ujE19y5mdHZG78XAtWGKWdrNVRkm9Nl44 elMxTtHTuRQV91u0RG0dTfAvGUJKSIuBA+Spih8dBWhAl2BkcB0t7zcxNmwHvfL9sk81 3ptA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=QisuvGCTCnQrC46aY73QASoWAbEZFo7ff5Vj8AOV5D4=; b=bI+UbhFoZYNZW+Fsd1qnpMj342fV5eDzP/Z5NXBwfIF6ZQtDmnJsukLUDfydugn0aA 4K4XEhs0LXWcdVYqQH0ZX5VBhH2QPY9oLjUxdzGgtfxwJtKjVd/feTrMayvGAbqSlQuP pqJ4cO6zl0PHCLAX4hxGwPhQssmoAY+KAsweVxF3h80N20L49IZIV657JfZT0/pzSXfT sBJwSTmNS07Pz4HlxT9P9eAGdz8EHSAcuxI6K0XwI0fWFGefRbPvW6NKhLjDfmd13Pwp dBQ7+uwPXPZUlNPnurp7sUKFHn6lvaSl0mQArMF9UOnEKicvRRPLGvQzYQEu2WB/2g8j MBGA== X-Gm-Message-State: AFqh2kp4ho5J2pAWpkNV04/1FYjW3H7EokoUeZc9H8kGX9AL1po6uCMr yCpU0li2doWLLQyQNm4a6ZAkCrDmQjyPczaY X-Google-Smtp-Source: AMrXdXuNwgkkz9NCdvDombHELm4ryvn27Y2ZeR0xTnznCwFeZu8QafDmhNLkdStzMtbGd0AFx5F58froof/Omrr/ X-Received: from jthoughton.c.googlers.com ([fda3:e722:ac3:cc00:14:4d90:c0a8:2a4f]) (user=jthoughton job=sendgmr) by 2002:a25:ab4a:0:b0:7b4:df57:d887 with SMTP id u68-20020a25ab4a000000b007b4df57d887mr131335ybi.601.1672913939807; Thu, 05 Jan 2023 02:18:59 -0800 (PST) Date: Thu, 5 Jan 2023 10:18:03 +0000 In-Reply-To: <20230105101844.1893104-1-jthoughton@google.com> Mime-Version: 1.0 References: <20230105101844.1893104-1-jthoughton@google.com> X-Mailer: git-send-email 2.39.0.314.g84b9a713c41-goog Message-ID: <20230105101844.1893104-6-jthoughton@google.com> Subject: [PATCH 05/46] hugetlb: add CONFIG_HUGETLB_HIGH_GRANULARITY_MAPPING From: James Houghton To: Mike Kravetz , Muchun Song , Peter Xu Cc: David Hildenbrand , David Rientjes , Axel Rasmussen , Mina Almasry , "Zach O'Keefe" , Manish Mishra , Naoya Horiguchi , "Dr . David Alan Gilbert" , "Matthew Wilcox (Oracle)" , Vlastimil Babka , Baolin Wang , Miaohe Lin , Yang Shi , Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org, James Houghton Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This adds the Kconfig to enable or disable high-granularity mapping. Each architecture must explicitly opt-in to it (via ARCH_WANT_HUGETLB_HIGH_GRANULARITY_MAPPING), but when opted in, HGM will be enabled by default if HUGETLB_PAGE is enabled. Signed-off-by: James Houghton --- fs/Kconfig | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/fs/Kconfig b/fs/Kconfig index 2685a4d0d353..ce2567946016 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -267,6 +267,13 @@ config HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON enable HVO by default. It can be disabled via hugetlb_free_vmemmap=off (boot command line) or hugetlb_optimize_vmemmap (sysctl). +config ARCH_WANT_HUGETLB_HIGH_GRANULARITY_MAPPING + bool + +config HUGETLB_HIGH_GRANULARITY_MAPPING + def_bool HUGETLB_PAGE + depends on ARCH_WANT_HUGETLB_HIGH_GRANULARITY_MAPPING + config MEMFD_CREATE def_bool TMPFS || HUGETLBFS -- 2.39.0.314.g84b9a713c41-goog