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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8811BC433F5 for ; Sun, 1 May 2022 15:45:32 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 9FFAB6B0071; Sun, 1 May 2022 11:45:31 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 9AF6A6B0073; Sun, 1 May 2022 11:45:31 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 876876B0074; Sun, 1 May 2022 11:45:31 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay.a.hostedemail.com [64.99.140.24]) by kanga.kvack.org (Postfix) with ESMTP id 7514A6B0071 for ; Sun, 1 May 2022 11:45:31 -0400 (EDT) Received: from smtpin31.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay13.hostedemail.com (Postfix) with ESMTP id 3E59960C08 for ; Sun, 1 May 2022 15:45:31 +0000 (UTC) X-FDA: 79417598862.31.06C9BFA Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by imf23.hostedemail.com (Postfix) with ESMTP id 9A7C0140015 for ; Sun, 1 May 2022 15:45:22 +0000 (UTC) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id 42D981F38C; Sun, 1 May 2022 15:45:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1651419929; h=from:from:reply-to: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=p+gtPqfy5WIC1zoHOvr2YphsBKsJaGJ3kjOeDbSsvpc=; b=ubR2MLEcbPaiGJazPJsjvW107/aV7nzPN7x0ZvTvK84hB0UUAhzKUHYcyZ6s0cvQzoX6Rb j3jeRTlPKTG/HeWYBxii2tcVwmz+F/AJIEc3SmVYYleSMKlEgFo2LwMlutJzx3rJChwyn8 2BgSkVlHCH6+1ClOht+5rj/bEQX7j4k= Received: from suse.cz (unknown [10.100.201.86]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by relay2.suse.de (Postfix) with ESMTPS id 537F02C141; Sun, 1 May 2022 15:45:28 +0000 (UTC) Date: Sun, 1 May 2022 17:45:25 +0200 From: Michal Hocko To: Andrew Morton Cc: NeilBrown , Thierry Reding , Matthew Wilcox , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Mel Gorman , Vlastimil Babka Subject: Re: [PATCH] MM: discard __GFP_ATOMIC Message-ID: References: <163712397076.13692.4727608274002939094@noble.neil.brown.name> <163764199967.7248.2528204111227925210@noble.neil.brown.name> <20220430113028.9daeebeedf679aa384da5945@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220430113028.9daeebeedf679aa384da5945@linux-foundation.org> X-Rspam-User: X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 9A7C0140015 X-Stat-Signature: w8rqci47cmgk7th9co1zgfsdwwsx43xb Authentication-Results: imf23.hostedemail.com; dkim=pass header.d=suse.com header.s=susede1 header.b=ubR2MLEc; spf=pass (imf23.hostedemail.com: domain of mhocko@suse.com designates 195.135.220.29 as permitted sender) smtp.mailfrom=mhocko@suse.com; dmarc=pass (policy=quarantine) header.from=suse.com X-HE-Tag: 1651419922-77486 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 Sat 30-04-22 11:30:28, Andrew Morton wrote: > Folks, > > Discussion seemed to meander then peter out. What's the thinking on > this patch now? I like the simplification. This requires a deeper review. I cannot promise anything before LSFMM ends and who knows what my inbox will look like afterwards. In general I think we have just too many levels of memory reserves access and most people have no clue how to use them properly. -- Michal Hocko SUSE Labs