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 X-Spam-Level: X-Spam-Status: No, score=-7.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 4F95EC3A59F for ; Thu, 29 Aug 2019 11:59:46 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 0FFCA215EA for ; Thu, 29 Aug 2019 11:59:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="ut3y8nHD" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0FFCA215EA Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id A96106B0266; Thu, 29 Aug 2019 07:59:45 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id A468E6B0269; Thu, 29 Aug 2019 07:59:45 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 9342F6B026A; Thu, 29 Aug 2019 07:59:45 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0137.hostedemail.com [216.40.44.137]) by kanga.kvack.org (Postfix) with ESMTP id 6D2216B0266 for ; Thu, 29 Aug 2019 07:59:45 -0400 (EDT) Received: from smtpin15.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with SMTP id 218149070 for ; Thu, 29 Aug 2019 11:59:45 +0000 (UTC) X-FDA: 75875321130.15.wood38_8f4b4ba45df10 X-HE-Tag: wood38_8f4b4ba45df10 X-Filterd-Recvd-Size: 3121 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by imf31.hostedemail.com (Postfix) with ESMTP for ; Thu, 29 Aug 2019 11:59:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=hvvxWk91syqxpuQ6n+HNuHloyMZzn7A9DjJbU+vMf1E=; b=ut3y8nHDtL7vAft1lfDYM1LZ3 74FoUkUqEumlTKEMnbZRh3f0+k9xPSX82zm9avCxYNEVxww2IxT9DqVZ2heumzfzk2EQupwaBPdNU 2r48dsvvmOMTYXuBaTnMk+k+7qjW0JpXwcxRpihLJmcEWpg8p0QTJDkSOgG7NGrMgk21gx+ShZtNW j8Vaxq4coWoCzgxm8XDgE42UR1VUyX0DDTUKYfqdzMyLSQLSu1/dwlsqzJVfM9iNCvpSbEGvNWUkM h5kDjk1WR+KkLWkVFRQi1htAdAxcP8xSxfXJgxiqV/ZGIH33RMEpvnxetPBMPMLpJCJH894Rle29U MI+uIxyvA==; Received: from willy by bombadil.infradead.org with local (Exim 4.92 #3 (Red Hat Linux)) id 1i3J5Y-0002qk-96; Thu, 29 Aug 2019 11:59:40 +0000 Date: Thu, 29 Aug 2019 04:59:40 -0700 From: Matthew Wilcox To: Jan Kara Cc: linux-mm@kvack.org, mgorman@suse.de Subject: Re: Truncate regression due to commit 69b6c1319b6 Message-ID: <20190829115940.GD6590@bombadil.infradead.org> References: <20190226165628.GB24711@quack2.suse.cz> <20190226172744.GH11592@bombadil.infradead.org> <20190227112721.GB27119@quack2.suse.cz> <20190227122451.GJ11592@bombadil.infradead.org> <20190227165538.GD27119@quack2.suse.cz> <20190228225317.GM11592@bombadil.infradead.org> <20190314111012.GG16658@quack2.suse.cz> <20190531190431.GA15496@bombadil.infradead.org> <20190827132925.GA9061@quack2.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190827132925.GA9061@quack2.suse.cz> User-Agent: Mutt/1.11.4 (2019-03-13) 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: On Tue, Aug 27, 2019 at 03:29:25PM +0200, Jan Kara wrote: > On Fri 31-05-19 12:04:31, Matthew Wilcox wrote: > > On Thu, Mar 14, 2019 at 12:10:12PM +0100, Jan Kara wrote: > > > On Thu 28-02-19 14:53:17, Matthew Wilcox wrote: > > > > Here's what I'm currently looking at. xas_store() becomes a wrapper > > > > around xas_replace() and xas_replace() avoids the xas_init_marks() and > > > > xas_load() calls: > > > > > > This looks reasonable to me. Do you have some official series I could test > > > or where do we stand? > > > > Hi Jan, > > > > Sorry for the delay; I've put this into the xarray tree: > > > > http://git.infradead.org/users/willy/linux-dax.git/shortlog/refs/heads/xarray > > > > I'm planning to ask Linus to pull it in about a week. > > Hum, I still don't see these xarray changes (the change to use > xas_replace() in particular) upstream. What has happened? It had a bug and I decided to pull the patch for now rather than find the bug ... this regression is still on my mind. Thanks for the ping.