From patchwork Wed Apr 21 09:34:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Hildenbrand X-Patchwork-Id: 12215797 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=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 4F1AEC433ED for ; Wed, 21 Apr 2021 09:35:24 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id EAE1A61448 for ; Wed, 21 Apr 2021 09:35:23 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EAE1A61448 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 4C2DC6B006E; Wed, 21 Apr 2021 05:35:23 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 499B06B0070; Wed, 21 Apr 2021 05:35:23 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 361016B0071; Wed, 21 Apr 2021 05:35:23 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0076.hostedemail.com [216.40.44.76]) by kanga.kvack.org (Postfix) with ESMTP id 19BCD6B006E for ; Wed, 21 Apr 2021 05:35:23 -0400 (EDT) Received: from smtpin22.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id D2A9482499B9 for ; Wed, 21 Apr 2021 09:35:22 +0000 (UTC) X-FDA: 78055866084.22.8CE79EF Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by imf28.hostedemail.com (Postfix) with ESMTP id AAAD9200024D for ; Wed, 21 Apr 2021 09:35:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1618997722; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=mG4K0kyZWiYzHTdtxf9YChQqSb3olomVjvUoAVcTA+s=; b=gJPygx7GpcI0RKuCjo1Z3ZLszhAuyFTOw2F+qGCW6sg2SLA2IxACpRkQAl+D8pUGqHqAhW Z4eSSENEmLXCtSEiv1/VM067LS2wdCQVU4yAWmOe3dtTZhzhk87+W4DYmX5BRovM59tiL/ uwqaRDDdE8GKk22mTfQ1nE83VRA0q7U= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-576-zI_wBCC-MTS2sdC5xB70Jg-1; Wed, 21 Apr 2021 05:35:18 -0400 X-MC-Unique: zI_wBCC-MTS2sdC5xB70Jg-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 7259E10054F6; Wed, 21 Apr 2021 09:35:15 +0000 (UTC) Received: from t480s.redhat.com (ovpn-113-224.ams2.redhat.com [10.36.113.224]) by smtp.corp.redhat.com (Postfix) with ESMTP id C0C9D5DAA5; Wed, 21 Apr 2021 09:35:04 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: David Hildenbrand , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , Alexander Viro , Peter Zijlstra , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Andrew Morton , Kees Cook , "Eric W. Biederman" , Greg Ungerer , Mike Rapoport , Catalin Marinas , Kevin Brodsky , Michal Hocko , Feng Tang , Don Zickus , x86@kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH v1 1/3] perf: MAP_EXECUTABLE does not indicate VM_MAYEXEC Date: Wed, 21 Apr 2021 11:34:51 +0200 Message-Id: <20210421093453.6904-2-david@redhat.com> In-Reply-To: <20210421093453.6904-1-david@redhat.com> References: <20210421093453.6904-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Rspamd-Queue-Id: AAAD9200024D X-Stat-Signature: 5dye97wxg5obeunewhp96gzghbg931b4 X-Rspamd-Server: rspam02 Received-SPF: none (redhat.com>: No applicable sender policy available) receiver=imf28; identity=mailfrom; envelope-from=""; helo=us-smtp-delivery-124.mimecast.com; client-ip=170.10.133.124 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1618997724-64111 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: Before commit e9714acf8c43 ("mm: kill vma flag VM_EXECUTABLE and mm->num_exe_file_vmas"), VM_EXECUTABLE indicated MAP_EXECUTABLE. MAP_EXECUTABLE is nowadays essentially ignored by the kernel and does not relate to VM_MAYEXEC. Fixes: f972eb63b100 ("perf: Pass protection and flags bits through mmap2 interface") Cc: Peter Zijlstra Signed-off-by: David Hildenbrand --- kernel/events/core.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/kernel/events/core.c b/kernel/events/core.c index 03db40f6cba9..3dfd463f1831 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -8186,8 +8186,6 @@ static void perf_event_mmap_event(struct perf_mmap_event *mmap_event) if (vma->vm_flags & VM_DENYWRITE) flags |= MAP_DENYWRITE; - if (vma->vm_flags & VM_MAYEXEC) - flags |= MAP_EXECUTABLE; if (vma->vm_flags & VM_LOCKED) flags |= MAP_LOCKED; if (is_vm_hugetlb_page(vma))