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 12A21C25B0C for ; Tue, 9 Aug 2022 13:07:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243401AbiHINHk (ORCPT ); Tue, 9 Aug 2022 09:07:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56550 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229653AbiHINHf (ORCPT ); Tue, 9 Aug 2022 09:07:35 -0400 Received: from mail-pl1-x633.google.com (mail-pl1-x633.google.com [IPv6:2607:f8b0:4864:20::633]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 738B5AE40 for ; Tue, 9 Aug 2022 06:07:34 -0700 (PDT) Received: by mail-pl1-x633.google.com with SMTP id z19so11301451plb.1 for ; Tue, 09 Aug 2022 06:07:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=8CexQjRbk8g4rtv6phdNBChrQIXcYCoIEvqKqjiIkf0=; b=Rih+yJI7jNNDuSTco4nc6byh8AZj7WjNWGBfQYTqAjfKO2AHFwQ3QlJDq+qriAPEih 3J3+39atQkL09N4JMH67IyIHe9obJpHbTJHYjNKpwFh6E/ehuzLcqPJS2TOj0zXq22CO 6lFxl1wxcq4bWidGef7NUtJv3DDc2ccXkdsPM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=8CexQjRbk8g4rtv6phdNBChrQIXcYCoIEvqKqjiIkf0=; b=eWe225x1BuYoBklg2zwvHrRcAAqTLscTLvsSSVFT26gvvcNXJtNCsVQAFI9Mmpi90p ChpqXW8YavNEEePtc9CXHQffjZ9DXJKeiJmj2LuryZ0tTwv0o5iGlpwZqVpxxO1t79FL 1k4Za54qVEPY5GGPV8hJTYDBzv1KcZv0sZxaStRDOYYOwnb8wkXTOjRaUy0uzV9faTYS TnmrPLBsfc06i5BRvMA7Z1+VVz4q2lQ1m/1IcbqLdC6P43J/Em/CbdZ5GbKCOoh46HX3 WOz3lIJ+EkHDvPhHMwhgGBiCbyK1wSdr3Vjj1JUcGui1fNcjYPa7JBXaW10sk+4Uatvb TFcg== X-Gm-Message-State: ACgBeo1H7mK6LDGR64Rh1dTArTX+H7MLc3O/B0rcbS2/RN9WbsydMQSe lmERsUrR8u4+5t8yxaAcx77DUg== X-Google-Smtp-Source: AA6agR61Sa3kvLa6mRM8tScVhtJ/Z7iM09P6FAUVNc+sm8EmosNlIU5jiD/gM44ofrheZ9JJGx9Ixw== X-Received: by 2002:a17:903:1209:b0:16b:81f6:e952 with SMTP id l9-20020a170903120900b0016b81f6e952mr24413647plh.48.1660050453752; Tue, 09 Aug 2022 06:07:33 -0700 (PDT) Received: from google.com ([240f:75:7537:3187:8d43:c739:457a:5504]) by smtp.gmail.com with ESMTPSA id n7-20020a170902e54700b0016c16648213sm11043190plf.20.2022.08.09.06.07.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Aug 2022 06:07:33 -0700 (PDT) Date: Tue, 9 Aug 2022 22:07:27 +0900 From: Sergey Senozhatsky To: Jiri Slaby Cc: Linus Torvalds , Linux Kernel Mailing List , minchan@kernel.org, ngupta@vflare.org, Jan Kara , Ted Ts'o , Andreas Dilger , Ext4 Developers List , avromanov@sberdevices.ru, ddrokosov@sberdevices.ru, Sergey Senozhatsky Subject: Re: ext2/zram issue [was: Linux 5.19] Message-ID: References: <702b3187-14bf-b733-263b-20272f53105d@kernel.org> <8710b302-9415-458d-f8a2-b78cc3a96e49@kernel.org> <9fd860a8-4e4f-6a95-5c3f-1b3c4a76cf51@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On (22/08/09 21:57), Sergey Senozhatsky wrote: > This somehow makes me scratch my head and ask if we really want to > continue using per-CPU steams. We previously (many years ago) had > a list of idle compression streams, which would do compression in > preemptible context and we would have only one zs_malloc handle > allocation path, which would do direct reclaim (when needed) Scratch that, I take it back. Sorry for the noise.