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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E2CDEC4321E for ; Wed, 19 Oct 2022 08:45:34 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8765910F195; Wed, 19 Oct 2022 08:45:26 +0000 (UTC) Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8DFBD10EA22 for ; Wed, 19 Oct 2022 03:30:23 +0000 (UTC) Received: from dggpemm500021.china.huawei.com (unknown [172.30.72.56]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4Msbkb21cWznV2c; Wed, 19 Oct 2022 11:27:03 +0800 (CST) Received: from dggpemm500001.china.huawei.com (7.185.36.107) by dggpemm500021.china.huawei.com (7.185.36.109) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Wed, 19 Oct 2022 11:29:57 +0800 Received: from localhost.localdomain.localdomain (10.175.113.25) by dggpemm500001.china.huawei.com (7.185.36.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Wed, 19 Oct 2022 11:29:57 +0800 From: Kefeng Wang To: , Andrew Morton Subject: [PATCH 3/5] mm: mprotect: use VM_ACCESS_FLAGS Date: Wed, 19 Oct 2022 11:49:43 +0800 Message-ID: <20221019034945.93081-4-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20221019034945.93081-1-wangkefeng.wang@huawei.com> References: <20221019034945.93081-1-wangkefeng.wang@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.175.113.25] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To dggpemm500001.china.huawei.com (7.185.36.107) X-CFilter-Loop: Reflected X-Mailman-Approved-At: Wed, 19 Oct 2022 08:45:19 +0000 X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kefeng Wang , Dinh Nguyen , Dave Hansen , amd-gfx@lists.freedesktop.org, linux-mm@kvack.org, Jarkko Sakkinen , linux-sgx@vger.kernel.org Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" Simplify VM_READ|VM_WRITE|VM_EXEC with VM_ACCESS_FLAGS. Signed-off-by: Kefeng Wang --- mm/mprotect.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/mm/mprotect.c b/mm/mprotect.c index 668bfaa6ed2a..99762403cc8f 100644 --- a/mm/mprotect.c +++ b/mm/mprotect.c @@ -756,8 +756,7 @@ static int do_mprotect_pkey(unsigned long start, size_t len, * If a permission is not passed to mprotect(), it must be * cleared from the VMA. */ - mask_off_old_flags = VM_READ | VM_WRITE | VM_EXEC | - VM_FLAGS_CLEAR; + mask_off_old_flags = VM_ACCESS_FLAGS | VM_FLAGS_CLEAR; new_vma_pkey = arch_override_mprotect_pkey(vma, prot, pkey); newflags = calc_vm_prot_bits(prot, new_vma_pkey); -- 2.35.3