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 BCAB9C4332F for ; Mon, 13 Nov 2023 22:48:52 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 056DD6B0171; Mon, 13 Nov 2023 17:48:52 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id F1AB66B0188; Mon, 13 Nov 2023 17:48:51 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id DBDEC6B0246; Mon, 13 Nov 2023 17:48:51 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id C57E06B0171 for ; Mon, 13 Nov 2023 17:48:51 -0500 (EST) Received: from smtpin13.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id 8999D16024C for ; Mon, 13 Nov 2023 22:48:51 +0000 (UTC) X-FDA: 81454422462.13.A496967 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf30.hostedemail.com (Postfix) with ESMTP id 5F31580019 for ; Mon, 13 Nov 2023 22:48:49 +0000 (UTC) Authentication-Results: imf30.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=KnMXqkgC; spf=none (imf30.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org; dmarc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1699915730; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=/PZtpc2ur+Sl7wDxycZ2d0T8dRROOFTBgBCfpZ4kvKU=; b=VDTgRwZbQHSSB0PlBSwW25lS17db4fTrercNQ6EF91oxsLnQccMwq/Q8MoUrutxch/GDrp 7osgWrttEhZx0xXIiSKCf1XJV59ZOBtfGXTgbUer8N51qBLBc1R4RDAbIVBWptYoRrBRRj OnINftj+s0QuHN3LEuv75jaV389kYMQ= ARC-Authentication-Results: i=1; imf30.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=KnMXqkgC; spf=none (imf30.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org; dmarc=none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1699915730; a=rsa-sha256; cv=none; b=zrZpHa8N7UmyYUwldFXVj0oTn/pHELjkkgtg2OGMkVHAPVYK/H3VjClFuYT4t9mSHIb0u+ ZNMs5VtqnZ466xTgtUH/LBF7huMMXoIweVdlNTNa0CDt3Bq3gIkK+0gcK/0r+DdiNtPKlS 0adwIW6ISKT1cqoZwFtywfrATNOH5M0= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.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; bh=/PZtpc2ur+Sl7wDxycZ2d0T8dRROOFTBgBCfpZ4kvKU=; b=KnMXqkgCWTdNThLbGgbywuV28C W9aVs0r3pVU+3wyh5NIhsQjE9qd/brki08cmV4a8NBRPV91PIo6HzMETXFlhzSN2I57/bOFYryX62 /AbbKL1DHk7Refu4wOrkbmOZW/5bCSYCGvpOSusZ8S0b6pYu+VvDB2yOx0SOQ822vw2risKapjqOl M9QHk4NpabqAD8LwVvuZSVMs9HNiHiURSUNEfyq7kHccZEdln3JtU4ngRD07OiPqeM5SCSFVZWZJU Ljmt0Xrrpo13zn2gEN6R9dTLURXUlga+OlHXT/q4H8PhPnHuN2qdzSU80+XF1uYGglaYw8zzhWmc8 RUos9M+A==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1r2fjT-00072p-Cs; Mon, 13 Nov 2023 22:48:39 +0000 Date: Mon, 13 Nov 2023 22:48:39 +0000 From: Matthew Wilcox To: Christoph Lameter Cc: Roman Gushchin , linux-mm@kvack.org, cgroups@vger.kernel.org Subject: Re: cgroups: warning for metadata allocation with GFP_NOFAIL (was Re: folio_alloc_buffers() doing allocations > order 1 with GFP_NOFAIL) Message-ID: References: <6b42243e-f197-600a-5d22-56bd728a5ad8@gentwo.org> <8f6d3d89-3632-01a8-80b8-6a788a4ba7a8@linux.com> <4f48d681-376e-100d-01fa-b22d15e8a534@linux.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4f48d681-376e-100d-01fa-b22d15e8a534@linux.com> X-Rspamd-Queue-Id: 5F31580019 X-Rspam-User: X-Stat-Signature: gfi9ywhp1ns7jfwg3wnkr9myncin55ht X-Rspamd-Server: rspam01 X-HE-Tag: 1699915729-821193 X-HE-Meta: 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 6N5h09L5 W4tbhxiBo+ow+86+DHGHWwqTJ8whUUg/QCz+Prb9rq4XI82v7f9gk38z/6RRMElcpRgyju/V7GAYMj9pus2tEgQICRAigrovcuQVq0ddzrW7SF720u64aEJB/NB1FBCofU6nOEWJh/TppKjIApA8v4jCNCq2MMDccyyPsXdMNr7CLQG9nzYwRkALwmg== 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: List-Subscribe: List-Unsubscribe: On Mon, Nov 13, 2023 at 11:48:57AM -0800, Christoph Lameter wrote: > On Fri, 10 Nov 2023, Matthew Wilcox wrote: > > > > Maybe Christoph is playing with min_slab_order or something, so we're > > > getting 8 pages per slab. That's still only 2496 bytes. Why are we > > > calling into the large kmalloc path? What's really going on here? > > > > Christoph? > > Sorry I thought I already answered that. > > This was a boot with slub_min_order=5 that was inadvertently left in from a > performance test. Ah. So do you think we need to fix this?