Message ID | 20190526134746.9315-11-alex@ghiti.fr (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <owner-linux-mm@kvack.org> Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 491EF112C for <patchwork-linux-mm@patchwork.kernel.org>; Sun, 26 May 2019 13:59:19 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 382A328A7A for <patchwork-linux-mm@patchwork.kernel.org>; Sun, 26 May 2019 13:59:19 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2AE2F28A96; Sun, 26 May 2019 13:59:19 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE autolearn=unavailable version=3.3.1 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CBA6728A7A for <patchwork-linux-mm@patchwork.kernel.org>; Sun, 26 May 2019 13:59:18 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id E725E6B0005; Sun, 26 May 2019 09:59:17 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id E22366B0007; Sun, 26 May 2019 09:59:17 -0400 (EDT) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id D38EF6B0008; Sun, 26 May 2019 09:59:17 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from mail-ed1-f70.google.com (mail-ed1-f70.google.com [209.85.208.70]) by kanga.kvack.org (Postfix) with ESMTP id 83DA76B0005 for <linux-mm@kvack.org>; Sun, 26 May 2019 09:59:17 -0400 (EDT) Received: by mail-ed1-f70.google.com with SMTP id t58so23234135edb.22 for <linux-mm@kvack.org>; Sun, 26 May 2019 06:59:17 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-original-authentication-results:x-gm-message-state:from:to:cc :subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=Q87r3fNmNCP3Biyq3RF0DkHapd6qlpuqLXAsIpA43rw=; b=JM8B2Z5sCt6uktATMgtysjY7kfjtQ2M9k+PmfYFZeXOYkPwciWZbeGh3Cfr4mUQzuG YyubRFvG722LjPgD6MVvPcuNnPrRd/D3phhOOW4gTWUk6fkrPigYc9MMgN69cvm2DROO JtpDEphVTcwiEJS+MIWs1X71i6cgy6NsosK9zcshqhM5ylEEO6UX6YmHtt7FvPESQWrN OfWpGtFIuTlBHnx2/WZOYQseUirrUhno3xMiKBy/7x2l84sg0Ou8Q1jZDzKIOsg71CwW kBvb2SM8k02WWIQT4r/bdf2GQ2DxKrJjnrkOmrxJvgws6kEQHaZWZkxfaxkpG89B0m6C H6aw== X-Original-Authentication-Results: mx.google.com; spf=neutral (google.com: 217.70.183.195 is neither permitted nor denied by best guess record for domain of alex@ghiti.fr) smtp.mailfrom=alex@ghiti.fr X-Gm-Message-State: APjAAAXHqat63brWPJ1aXFvRSqOSDKx1FwJyeifi9QwXBqhZKLmcgKHk EEo6ZgPh52Lf8v1qUL7Wl2zHPRgTDNSvsAwF3VR/TT1lLdAKKIb2djquniQTsKuqPI06SD5e2YX Sl82JTML89plI0GbmH69+7J/aDBDFWKZyCEF/k3N1VvN7qzAI7QThP56AMTpjp2w= X-Received: by 2002:a50:9435:: with SMTP id p50mr117824098eda.40.1558879157058; Sun, 26 May 2019 06:59:17 -0700 (PDT) X-Google-Smtp-Source: APXvYqzuvguqB86LazKYwuKUUnSc7CMFbsHKFMrijGXATMNu514Ez3IVBBCS4VneYPmE4TOxlVgm X-Received: by 2002:a50:9435:: with SMTP id p50mr117824028eda.40.1558879156008; Sun, 26 May 2019 06:59:16 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1558879156; cv=none; d=google.com; s=arc-20160816; b=eojFf3BOpQUKfb5eyNAF7f2jGSwhjBzPlBGftOEl7F+aSpazrucCgI2jvwBaVAI5jk iu24y8tpcq+QcAuTigXNCoG4COZEKWTmANBwFschCGItexsqqhThBs07xsNuw/zJ4e7C 210uK9tYEiLTN4dKTCNsVn4aVPohfJzR9yOjid/R4bWJHZIs2oEdbm8btGp6joYErq+v 0wVNbteMISPrwr3ejkQ2R/xva/TcnexitqEUZwaMwq+C/qmpumua+tkv3JOjURzdjSvF ZmfVTeKCcz8Al+JoGO853sGiEZtSEjnkRIgt1vMFJ/c5reI24iwDLAI1xiO1ToVIwPLQ C+GQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from; bh=Q87r3fNmNCP3Biyq3RF0DkHapd6qlpuqLXAsIpA43rw=; b=ZOvzo+U09q8aF/C/xYucIA2290JUR+VY2kksz3lawWarXT5+5mocwU4jZ+Hcq4umXH 4LFXzeuD9z0ZNCknChp0aTStokrNafG2CvMAUmcoqKi1dnhPmjoHBoLMMdUjVKxM5rfu f1ZG7okMD7Bn6ETjja2nTFUZ3L03KfPY7k+8avxM+NBYTLDGTtz8/5xUmj4t3UwNHd3Q myEksZ7rdibJIyCCy+jU+K6EzjI5Kp2fO4nUWrNba3cRqK9skcZPe7wxnv/RQI8YP2p+ JUXngr3HJIBNADfCunfnHJCpKZAngnEk5DM7VXov0EksdbS0FuXFWOsNgmhXZJiR3M+e /eyQ== ARC-Authentication-Results: i=1; mx.google.com; spf=neutral (google.com: 217.70.183.195 is neither permitted nor denied by best guess record for domain of alex@ghiti.fr) smtp.mailfrom=alex@ghiti.fr Received: from relay3-d.mail.gandi.net (relay3-d.mail.gandi.net. [217.70.183.195]) by mx.google.com with ESMTPS id t57si1466371eda.339.2019.05.26.06.59.15 for <linux-mm@kvack.org> (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Sun, 26 May 2019 06:59:15 -0700 (PDT) Received-SPF: neutral (google.com: 217.70.183.195 is neither permitted nor denied by best guess record for domain of alex@ghiti.fr) client-ip=217.70.183.195; Authentication-Results: mx.google.com; spf=neutral (google.com: 217.70.183.195 is neither permitted nor denied by best guess record for domain of alex@ghiti.fr) smtp.mailfrom=alex@ghiti.fr X-Originating-IP: 79.86.19.127 Received: from alex.numericable.fr (127.19.86.79.rev.sfr.net [79.86.19.127]) (Authenticated sender: alex@ghiti.fr) by relay3-d.mail.gandi.net (Postfix) with ESMTPSA id 974FB60003; Sun, 26 May 2019 13:59:11 +0000 (UTC) From: Alexandre Ghiti <alex@ghiti.fr> To: Andrew Morton <akpm@linux-foundation.org> Cc: Christoph Hellwig <hch@lst.de>, Russell King <linux@armlinux.org.uk>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will.deacon@arm.com>, Ralf Baechle <ralf@linux-mips.org>, Paul Burton <paul.burton@mips.com>, James Hogan <jhogan@kernel.org>, Palmer Dabbelt <palmer@sifive.com>, Albert Ou <aou@eecs.berkeley.edu>, Alexander Viro <viro@zeniv.linux.org.uk>, Luis Chamberlain <mcgrof@kernel.org>, Kees Cook <keescook@chromium.org>, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, linux-riscv@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, Alexandre Ghiti <alex@ghiti.fr> Subject: [PATCH v4 10/14] mips: Use STACK_TOP when computing mmap base address Date: Sun, 26 May 2019 09:47:42 -0400 Message-Id: <20190526134746.9315-11-alex@ghiti.fr> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190526134746.9315-1-alex@ghiti.fr> References: <20190526134746.9315-1-alex@ghiti.fr> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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: <linux-mm.kvack.org> X-Virus-Scanned: ClamAV using ClamSMTP |
Series |
Provide generic top-down mmap layout functions
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expand
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diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c index 3ff82c6f7e24..ffbe69f3a7d9 100644 --- a/arch/mips/mm/mmap.c +++ b/arch/mips/mm/mmap.c @@ -22,7 +22,7 @@ EXPORT_SYMBOL(shm_align_mask); /* gap between mmap and stack */ #define MIN_GAP (128*1024*1024UL) -#define MAX_GAP ((TASK_SIZE)/6*5) +#define MAX_GAP ((STACK_TOP)/6*5) #define STACK_RND_MASK (0x7ff >> (PAGE_SHIFT - 12)) static int mmap_is_legacy(struct rlimit *rlim_stack) @@ -54,7 +54,7 @@ static unsigned long mmap_base(unsigned long rnd, struct rlimit *rlim_stack) else if (gap > MAX_GAP) gap = MAX_GAP; - return PAGE_ALIGN(TASK_SIZE - gap - rnd); + return PAGE_ALIGN(STACK_TOP - gap - rnd); } #define COLOUR_ALIGN(addr, pgoff) \