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=-12.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 83B2AC55ABD for ; Tue, 10 Nov 2020 19:58:23 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id E403520731 for ; Tue, 10 Nov 2020 19:58:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="K7q3FGwJ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E403520731 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=fb.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 66E1D6B005D; Tue, 10 Nov 2020 14:58:22 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 643E26B0068; Tue, 10 Nov 2020 14:58:22 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 559F36B006C; Tue, 10 Nov 2020 14:58:22 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0210.hostedemail.com [216.40.44.210]) by kanga.kvack.org (Postfix) with ESMTP id 2D74A6B005D for ; Tue, 10 Nov 2020 14:58:22 -0500 (EST) Received: from smtpin23.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id C02423628 for ; Tue, 10 Nov 2020 19:58:21 +0000 (UTC) X-FDA: 77469570402.23.grass66_3810efa272f7 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin23.hostedemail.com (Postfix) with ESMTP id 9FD6E37608 for ; Tue, 10 Nov 2020 19:58:21 +0000 (UTC) X-HE-Tag: grass66_3810efa272f7 X-Filterd-Recvd-Size: 3810 Received: from mx0a-00082601.pphosted.com (mx0b-00082601.pphosted.com [67.231.153.30]) by imf03.hostedemail.com (Postfix) with ESMTP for ; Tue, 10 Nov 2020 19:58:20 +0000 (UTC) Received: from pps.filterd (m0089730.ppops.net [127.0.0.1]) by m0089730.ppops.net (8.16.0.42/8.16.0.42) with SMTP id 0AAJiSDp015007 for ; Tue, 10 Nov 2020 11:58:20 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding : content-type; s=facebook; bh=hjOXAiNzgu9fDrCr2B26A5FENiij5QbaOJxXeBfw688=; b=K7q3FGwJEI97/0gTF8YYY06a5DzpTJRmQrWfIMTQFsWXUgcP6Pg4WPrLZy6Y4YBtlBqZ seL2KYOyP1ORO2qXn0PMBOTRUg59i2pY98PiKRZKvNekXU+2hzzhXxLAea42lmaZj+Yx 9SS6gqQ71wRSFJJf0gIV7tyw3pdAqDyADQs= Received: from maileast.thefacebook.com ([163.114.130.16]) by m0089730.ppops.net with ESMTP id 34nqy2ft7w-4 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Tue, 10 Nov 2020 11:58:20 -0800 Received: from intmgw003.06.prn3.facebook.com (2620:10d:c0a8:1b::d) by mail.thefacebook.com (2620:10d:c0a8:83::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Tue, 10 Nov 2020 11:58:08 -0800 Received: by devvm1755.vll0.facebook.com (Postfix, from userid 111017) id 31722238DAA4; Tue, 10 Nov 2020 11:57:59 -0800 (PST) From: Roman Gushchin To: Andrew Morton , CC: Shakeel Butt , Johannes Weiner , Michal Hocko , Christoph Lameter , , , Roman Gushchin Subject: [PATCH 1/2] mm: slub: call account_slab_page() after slab page initialization Date: Tue, 10 Nov 2020 11:57:52 -0800 Message-ID: <20201110195753.530157-1-guro@fb.com> X-Mailer: git-send-email 2.24.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-FB-Internal: Safe Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.312,18.0.737 definitions=2020-11-10_07:2020-11-10,2020-11-10 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 priorityscore=1501 mlxlogscore=847 phishscore=0 mlxscore=0 malwarescore=0 spamscore=0 bulkscore=0 impostorscore=0 suspectscore=0 clxscore=1015 adultscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2011100135 X-FB-Internal: deliver 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: It's convenient to have page->objects initialized before calling into account_slab_page(). In particular, this information can be used to pre-alloc the obj_cgroup vector. Let's call account_slab_page() a bit later, after the initialization of page->objects. This commit doesn't bring any functional change, but is required for further optimizations. Signed-off-by: Roman Gushchin --- mm/slub.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 8c9fa24ebbf3..ccdbb62e025d 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1622,9 +1622,6 @@ static inline struct page *alloc_slab_page(struct k= mem_cache *s, else page =3D __alloc_pages_node(node, flags, order); =20 - if (page) - account_slab_page(page, order, s); - return page; } =20 @@ -1777,6 +1774,8 @@ static struct page *allocate_slab(struct kmem_cache= *s, gfp_t flags, int node) =20 page->objects =3D oo_objects(oo); =20 + account_slab_page(page, oo_order(oo), s, flags); + page->slab_cache =3D s; __SetPageSlab(page); if (page_is_pfmemalloc(page)) --=20 2.26.2