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[2620:137:e000::1:20]) by mx.google.com with ESMTP id a3-20020a624d03000000b0060d7d3b2777si11485984pfb.176.2023.04.04.13.30.36; Tue, 04 Apr 2023 13:30:49 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@linux-foundation.org header.s=korg header.b=AZT5E5bl; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235292AbjDDU1G (ORCPT + 99 others); Tue, 4 Apr 2023 16:27:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41012 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232087AbjDDU1E (ORCPT ); Tue, 4 Apr 2023 16:27:04 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2534D2D64 for ; Tue, 4 Apr 2023 13:27:04 -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 dfw.source.kernel.org (Postfix) with ESMTPS id B37116301E for ; Tue, 4 Apr 2023 20:27:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E4C90C433D2; Tue, 4 Apr 2023 20:27:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1680640023; bh=hK889FfnPbmHGlOcPWfjn8KCUJXv1a5z8MAUTtwBaIQ=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=AZT5E5blUUUtD9da16rNfdzTVnwoZzbPEPukd+mKp2csOXKJBGxkf71ImQYcLXTSB AyaYqG825qLrg1PQ8wvTzVASP01/+T6GZvtAeClzUG9Ic2LdX8wOhykrIWt1+ddgWu dDRnxJu3suqkgQfRAU/BDMmWK4R0fcedFq8V/lms= Date: Tue, 4 Apr 2023 13:27:02 -0700 From: Andrew Morton To: Peng Zhang Cc: Liam.Howlett@oracle.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, maple-tree@lists.infradead.org Subject: Re: [PATCH v2 0/3] Some fixes and cleanup for maple tree. Message-Id: <20230404132702.9240f3a77d0c00fca4b9bf55@linux-foundation.org> In-Reply-To: <20230314124203.91572-1-zhangpeng.00@bytedance.com> References: <20230314124203.91572-1-zhangpeng.00@bytedance.com> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-7.1 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,DKIM_VALID_EF,NICE_REPLY_A,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 14 Mar 2023 20:42:00 +0800 Peng Zhang wrote: > Some fixes and clean up for maple tree. > > The bug fixed by [PATCH v2 1/3] does not seem to be triggered due to some > coincidences, because now the implementation of mtree_lookup_walk() scans > pivots one by one and exits the loop early. The test cases for the bugs fixed by > [PATCH v2 3/3] are difficult to write. If I think of how to write them later, > I will send them out. So I send out the second edition first. Do we feel that any of these should be backported into -stable kernels? [3/3] looks to be a candidate for this?