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=-5.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 23E10C433FE for ; Mon, 7 Dec 2020 15:42:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E612323750 for ; Mon, 7 Dec 2020 15:42:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726363AbgLGPm0 (ORCPT ); Mon, 7 Dec 2020 10:42:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51494 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725804AbgLGPm0 (ORCPT ); Mon, 7 Dec 2020 10:42:26 -0500 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CCA9CC0617B0; Mon, 7 Dec 2020 07:41:45 -0800 (PST) Date: Mon, 7 Dec 2020 16:41:42 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1607355704; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=tvO4PmPM4Ab6iPOra8TFrq2ZRXT3Xi2SqmN9MvXnt28=; b=pjeLAmKpGUur7O1GR8OWAhq53xC9AmW2OLRLKpWEl8cWoPgtzs5d4OGEYTee7WMNfic2D4 XlJKxVIODQ1nZsAhI6iYhYxHh0gyoeuuUnRypM1lcTKOKlV7UdV2eNEYcY66vJ0Ka+VIJt lYE6xNPSojrIZJzle7Sn1obm+ruAWkJR8yn3oa7ieKToU0X1E7+YxU65GnEgTigxslQGj0 J8ciuuV8dO6FOExQ5vaVn4CtpQTBnyCxbpjBRAGA/gXx3uzokt3bg3WEVvDjnKTOKKe10G DCAQ4MVz6obDaC1K4wHzMXzTrO5+xFwW55E5bN7yap2bf5jLYQcqIIJWnYWKFA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1607355704; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=tvO4PmPM4Ab6iPOra8TFrq2ZRXT3Xi2SqmN9MvXnt28=; b=leGJU6xVrEvuHYmiW1GAF6a4ze4XEuXc9geqMrEvhXnz89T2wA5Mj0jX9T1ehNAt0XBHTe jVIPZQ/kvGpItYAQ== From: Sebastian Andrzej Siewior To: Vitaly Wool Cc: Mike Galbraith , Oleksandr Natalenko , LKML , Linux-MM , Andrew Morton , Steven Rostedt , Thomas Gleixner , linux-rt-users@vger.kernel.org Subject: Re: scheduling while atomic in z3fold Message-ID: <20201207154142.cwxhlv7cxor424rv@linutronix.de> References: <20201202220826.5chy56mbgvrwmg3d@linutronix.de> <64ab382309c41ca5c7a601fc3efbb6d2a6e68602.camel@gmx.de> <20201203133934.37aotbdjnd36lrxv@linutronix.de> <10d5088861ba219f3f7cd657fc95b0bedc19010a.camel@gmx.de> <3ffed6172820f2e8e821e1b8817dbd0bdd693c26.camel@gmx.de> <3ec93680c6a27626b23e99d552aa778be7b2ecec.camel@gmx.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2020-12-07 16:21:20 [+0100], Vitaly Wool wrote: > On Mon, Dec 7, 2020 at 1:34 PM Mike Galbraith wrote: > > > > Unfortunately, that made zero difference. > > Okay, I suggest that you submit the patch that changes read_lock() to > write_lock() in __release_z3fold_page() and I'll ack it then. > I would like to rewrite the code so that write_lock is not necessary > there but I don't want to hold you back and it isn't likely that I'll > complete this today. Please with a Fixes: 4a3ac9311dac3 ("mm/z3fold.c: add inter-page compaction") tag. > Best regards, > Vitaly Sebastian