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[2620:137:e000::1:20]) by mx.google.com with ESMTP id x13-20020aa7956d000000b00561fb25a42asi581823pfq.303.2022.11.24.01.29.34; Thu, 24 Nov 2022 01:29:45 -0800 (PST) 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=@gentwo.de header.s=default header.b=cp4mwkQu; 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; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=gentwo.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230153AbiKXJVN (ORCPT + 88 others); Thu, 24 Nov 2022 04:21:13 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57862 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230154AbiKXJVL (ORCPT ); Thu, 24 Nov 2022 04:21:11 -0500 Received: from gentwo.de (gentwo.de [161.97.139.209]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9617211DA09 for ; Thu, 24 Nov 2022 01:21:07 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gentwo.de; s=default; t=1669281665; bh=LYzb4SqFx0WhZ1vRL+bXoXsF0BRQn8llM6x37bry8nM=; h=Date:From:To:cc:Subject:In-Reply-To:References:From; b=cp4mwkQulfGXBYU6K3n9nUTp69ODHRPLVKxXn/eRTtc5LbvaOVx4G5ydKNHmbe4ia KGiztbpS56FH5jpPwvtrPABSTdUxDlqqyzropimq6DMewVLivMHL3JOy0BgLyGj+am 6d0OfiQWISFuvxSuV0N50HUqEGP1pzKPvPV+EYJcLC94/FJRdwVE+gCBJRIS6BThpa p93D7GsEkdh+qubt0OXekVnG+O43ngg7VqnB+wDCuwOVaeTjBTXDh6o2kC+bAj9m9K 7v1bw3O68WH319loxKBNnO1BQQso/UR//thUs9HV+0pEJdv0osoQBiri+wSPkeJWz7 gPiawhTImP1hQ== Received: by gentwo.de (Postfix, from userid 1001) id 4BC2DB002AF; Thu, 24 Nov 2022 10:21:05 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by gentwo.de (Postfix) with ESMTP id 472DDB00068; Thu, 24 Nov 2022 10:21:05 +0100 (CET) Date: Thu, 24 Nov 2022 10:21:05 +0100 (CET) From: Christoph Lameter To: Vlastimil Babka cc: Roman Gushchin , David Rientjes , Joonsoo Kim , Pekka Enberg , Hyeonggon Yoo <42.hyeyoo@gmail.com>, Andrew Morton , Linus Torvalds , Matthew Wilcox , patches@lists.linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 07/12] mm, slab: ignore SLAB_RECLAIM_ACCOUNT with CONFIG_SLUB_TINY In-Reply-To: <23028c8a-7e53-6993-e076-6df8a6939313@suse.cz> Message-ID: <79c1a3a1-f36e-3585-f470-6779f97e2dbd@gentwo.de> References: <20221121171202.22080-1-vbabka@suse.cz> <20221121171202.22080-8-vbabka@suse.cz> <23028c8a-7e53-6993-e076-6df8a6939313@suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_PASS,SPF_PASS autolearn=ham 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 Thu, 24 Nov 2022, Vlastimil Babka wrote: > SLAB_RECLAIM_ACCOUNT is kinda misnomer these days, as the only thing it does > is to add __GFP_RECLAIMABLE to cache's gfp flags for the page allocator's > mobility grouping. I guess the "ACCOUNT" part comes from being counted > towards SReclaimable (vs SUnreclaim) in /proc/meminfo. Well these Sreclaimable etc counters visible in /proc/meminfo are used in the reclaim logic and are quite important there.