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 3C9D2C76195 for ; Mon, 27 Mar 2023 19:47:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229606AbjC0TrX (ORCPT ); Mon, 27 Mar 2023 15:47:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41660 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229598AbjC0TrW (ORCPT ); Mon, 27 Mar 2023 15:47:22 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 737EC30D8 for ; Mon, 27 Mar 2023 12:47:20 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 1C05AB818CF for ; Mon, 27 Mar 2023 19:47:19 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B25BFC433EF; Mon, 27 Mar 2023 19:47:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1679946437; bh=Ozlues52AJzwnVr6AQoTvyO3diXOGGYQ6jreVEdivKc=; h=Date:To:From:Subject:From; b=HEratedXJkS2E0/JIR68C6qEdfGtjdd3hrzog1SSBJsFd2Xg7M0lWTQXOqn8weMyc gCSXp2VhiiFcRCzSeDYTmzEBEqkCpdIVA5Y1b8oNzYo0YOcldf2UOdObuLRLAaQ35i pMlTxOWrIhHTLQOGZyocJSFHER0KteIi/5ZXoETM= Date: Mon, 27 Mar 2023 12:47:17 -0700 To: mm-commits@vger.kernel.org, Liam.Howlett@oracle.com, Liam.Howlett@Oracle.com, akpm@linux-foundation.org From: Andrew Morton Subject: + mm-enable-maple-tree-rcu-mode-by-default-v8.patch added to mm-unstable branch Message-Id: <20230327194717.B25BFC433EF@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: mm: enable maple tree RCU mode by default. has been added to the -mm mm-unstable branch. Its filename is mm-enable-maple-tree-rcu-mode-by-default-v8.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-enable-maple-tree-rcu-mode-by-default-v8.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: "Liam R. Howlett" Subject: mm: enable maple tree RCU mode by default. Date: Mon, 27 Mar 2023 14:55:32 -0400 unchangelogged update Link: https://lkml.kernel.org/r/20230227173632.3292573-9-surenb@google.com Link: https://lore.kernel.org/linux-mm/000000000000b0a65805f663ace6@google.com/ Link: https://lkml.kernel.org/r/20230327185532.2354250-9-Liam.Howlett@oracle.com Cc: stable@vger.kernel.org Fixes: d4af56c5c7c6 ("mm: start tracking VMAs with maple tree") Signed-off-by: Liam R. Howlett Reported-by: syzbot+8d95422d3537159ca390@syzkaller.appspotmail.com Signed-off-by: Andrew Morton --- mm/mmap.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/mm/mmap.c~mm-enable-maple-tree-rcu-mode-by-default-v8 +++ a/mm/mmap.c @@ -2277,8 +2277,7 @@ do_vmi_align_munmap(struct vma_iterator int count = 0; int error = -ENOMEM; MA_STATE(mas_detach, &mt_detach, 0, 0); - mt_init_flags(&mt_detach, vmi->mas.tree->ma_flags & - (MT_FLAGS_LOCK_MASK | MT_FLAGS_USE_RCU)); + mt_init_flags(&mt_detach, vmi->mas.tree->ma_flags & MT_FLAGS_LOCK_MASK); mt_set_external_lock(&mt_detach, &mm->mmap_lock); /* _ Patches currently in -mm which might be from Liam.Howlett@Oracle.com are mm-enable-maple-tree-rcu-mode-by-default-v8.patch