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=-13.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 5AB6FC433B4 for ; Tue, 18 May 2021 09:08:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3EA5F610CC for ; Tue, 18 May 2021 09:08:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347836AbhERJJR (ORCPT ); Tue, 18 May 2021 05:09:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37604 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347855AbhERJI2 (ORCPT ); Tue, 18 May 2021 05:08:28 -0400 Received: from mail-wm1-x32d.google.com (mail-wm1-x32d.google.com [IPv6:2a00:1450:4864:20::32d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 02C48C061344 for ; Tue, 18 May 2021 02:07:10 -0700 (PDT) Received: by mail-wm1-x32d.google.com with SMTP id f19-20020a05600c1553b02901794fafcfefso430247wmg.2 for ; Tue, 18 May 2021 02:07:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=DEq0/bKuKyVdL1JH6Xf7qoLNGy26OvZqXWZScmfZsZ4=; b=YXX3VRZhOsfkB4tqu4Q6tAruc141WxgNYT2vTPahITkoBVW62BQbI/sBbFkSqseuNC mhbNcHMeCuLCBI+BiUFrst6wUM5jKxPuY8C8rgZPqXRiDptgfsiJcKEK5lzgkfWq4ciG 5o4kXqCM3YDFxvy4g6lHD4PG5hwsK9baR2Eo2C6jL7D/oSRm1/VSxks0nAEuNwAsAbPR YmiKvgRJK4ZFprotrlEM+uXJxVpewBXcVsCX0MvgzEIx0/Y+G7KEweH6FbNsMCCkwntb 8+vvaCFdK1xbWXWC6Hlz71OwNNETAee3JejQ6tL9+YqsQB/JqPPb5lhQUI69AJ1YNLxD 0P3w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=DEq0/bKuKyVdL1JH6Xf7qoLNGy26OvZqXWZScmfZsZ4=; b=MlFvcOWmXsXX8jWO3efhz3io2kLkohOGqU2nsrEZ/nJmWl6oRBywu/4t9x66F3/wjy heMu4IFk8P96f8aKo0c6DrkTpfQ1Svq3hei0vmuCU/4Q08iUbmn4HhasLYVo3qNqkV+z y7sxIBzfC75sDw2x6zeh5UUNVOhit+008i+mRAfZ+8huoEQsj5k5GEc6Oqpidoxb62Cz xnq1B8agnH+DXr6nEsRXxV+Lz/nKb3c0I8oTxGHh6YUtqkY951PdAZcJ1911yFKTDx4i Eb8HL+u+ekgjEP5m1FNSFDa9+yVUQnWQ44YvdVaHxRc35epy6MIug+fMGAnVjrmNCW5T qr5Q== X-Gm-Message-State: AOAM531JcrS2E+rrG0OWI2MMrw68Xn1WzicpuT5lQAPtfnxlAk7kOGJQ lKUduOOWH80h3X3ef7sX1v8= X-Google-Smtp-Source: ABdhPJypDI4jFTUNpyCBGcVWEB+Qc4Mg9AKECPAD92Z3ZLvuiLmU/GmFHaNdYqqF00Froa1hujNP4w== X-Received: by 2002:a1c:dd08:: with SMTP id u8mr3757709wmg.62.1621328828723; Tue, 18 May 2021 02:07:08 -0700 (PDT) Received: from amanieu-laptop.home ([2a00:23c6:f081:f801:91cf:b949:c46c:f5a9]) by smtp.gmail.com with ESMTPSA id z17sm7520306wrt.81.2021.05.18.02.07.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 May 2021 02:07:08 -0700 (PDT) From: Amanieu d'Antras Cc: Amanieu d'Antras , Ryan Houdek , Catalin Marinas , Will Deacon , Mark Rutland , Steven Price , Arnd Bergmann , David Laight , Mark Brown , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [RESEND PATCH v4 2/8] hugetlbfs: Use arch_get_mmap_* macros Date: Tue, 18 May 2021 10:06:52 +0100 Message-Id: <20210518090658.9519-3-amanieu@gmail.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210518090658.9519-1-amanieu@gmail.com> References: <20210518090658.9519-1-amanieu@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org hugetlb_get_unmapped_area should obey the same arch-specific constraints as mmap when selecting an address. Signed-off-by: Amanieu d'Antras Co-developed-by: Ryan Houdek Signed-off-by: Ryan Houdek --- fs/hugetlbfs/inode.c | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-) diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 701c82c36138..526ccb524329 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -191,6 +191,18 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma) */ #ifndef HAVE_ARCH_HUGETLB_UNMAPPED_AREA +#ifndef arch_get_mmap_end +#define arch_get_mmap_end(addr) (TASK_SIZE) +#endif + +#ifndef arch_get_mmap_base +#define arch_get_mmap_base(addr) (current->mm->mmap_base) +#endif + +#ifndef arch_get_mmap_base_topdown +#define arch_get_mmap_base_topdown(addr) (current->mm->mmap_base) +#endif + static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags) @@ -200,8 +212,8 @@ hugetlb_get_unmapped_area_bottomup(struct file *file, unsigned long addr, info.flags = 0; info.length = len; - info.low_limit = current->mm->mmap_base; - info.high_limit = TASK_SIZE; + info.low_limit = arch_get_mmap_base(addr); + info.high_limit = arch_get_mmap_end(addr); info.align_mask = PAGE_MASK & ~huge_page_mask(h); info.align_offset = 0; return vm_unmapped_area(&info); @@ -217,7 +229,7 @@ hugetlb_get_unmapped_area_topdown(struct file *file, unsigned long addr, info.flags = VM_UNMAPPED_AREA_TOPDOWN; info.length = len; info.low_limit = max(PAGE_SIZE, mmap_min_addr); - info.high_limit = current->mm->mmap_base; + info.high_limit = arch_get_mmap_base_topdown(addr); info.align_mask = PAGE_MASK & ~huge_page_mask(h); info.align_offset = 0; addr = vm_unmapped_area(&info); @@ -231,8 +243,8 @@ hugetlb_get_unmapped_area_topdown(struct file *file, unsigned long addr, if (unlikely(offset_in_page(addr))) { VM_BUG_ON(addr != -ENOMEM); info.flags = 0; - info.low_limit = current->mm->mmap_base; - info.high_limit = TASK_SIZE; + info.low_limit = arch_get_mmap_base(addr); + info.high_limit = arch_get_mmap_end(addr); addr = vm_unmapped_area(&info); } -- 2.31.1