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 BE628C6369E for ; Tue, 17 Nov 2020 03:43:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 78FC0206C0 for ; Tue, 17 Nov 2020 03:43:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="VUbsh0hg" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726869AbgKQDlS (ORCPT ); Mon, 16 Nov 2020 22:41:18 -0500 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:36998 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726543AbgKQDlP (ORCPT ); Mon, 16 Nov 2020 22:41:15 -0500 Received: from pps.filterd (m0148461.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 0AH3cCwv024273 for ; Mon, 16 Nov 2020 19:41:15 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=facebook; bh=IyuiulO53PMtZqC2mFSdmwUnaE6dUMcKJTWo694qzRI=; b=VUbsh0hgDyFctA7OfBxbX4hqtcRfrYVyMZ58f4g8puRtVuE0fPr6jRxLYe64SV08cT6u Hh+ZB+y375gSSewZ3iKPTc+Z7WHzYhn/VQEHut0V2YSJNuHDhZ7aKtNy/PnGlbLVSe09 jQfIEcwtSiHOy8KjfoL8V5wBKSxvu6zbGZQ= Received: from maileast.thefacebook.com ([163.114.130.16]) by mx0a-00082601.pphosted.com with ESMTP id 34uphj53p8-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Mon, 16 Nov 2020 19:41:15 -0800 Received: from intmgw003.06.prn3.facebook.com (2620:10d:c0a8:1b::d) by mail.thefacebook.com (2620:10d:c0a8:83::4) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Mon, 16 Nov 2020 19:41:13 -0800 Received: by devvm3388.prn0.facebook.com (Postfix, from userid 111017) id 4872CC63A6E; Mon, 16 Nov 2020 19:41:10 -0800 (PST) From: Roman Gushchin To: CC: , , , , , , , Subject: [PATCH bpf-next v6 12/34] bpf: refine memcg-based memory accounting for hashtab maps Date: Mon, 16 Nov 2020 19:40:46 -0800 Message-ID: <20201117034108.1186569-13-guro@fb.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20201117034108.1186569-1-guro@fb.com> References: <20201117034108.1186569-1-guro@fb.com> 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=2020-11-17_01:2020-11-13,2020-11-17 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 lowpriorityscore=0 impostorscore=0 bulkscore=0 mlxlogscore=999 priorityscore=1501 malwarescore=0 clxscore=1015 suspectscore=38 adultscore=0 spamscore=0 mlxscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2011170027 X-FB-Internal: deliver Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Include percpu objects and the size of map metadata into the accounting. Signed-off-by: Roman Gushchin Acked-by: Song Liu Reviewed-by: Shakeel Butt --- kernel/bpf/hashtab.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/kernel/bpf/hashtab.c b/kernel/bpf/hashtab.c index ec46266aaf1c..d1fa61ab7c76 100644 --- a/kernel/bpf/hashtab.c +++ b/kernel/bpf/hashtab.c @@ -289,10 +289,11 @@ static int prealloc_init(struct bpf_htab *htab) goto skip_percpu_elems; =20 for (i =3D 0; i < num_entries; i++) { + const gfp_t gfp =3D GFP_USER | __GFP_NOWARN | __GFP_ACCOUNT; u32 size =3D round_up(htab->map.value_size, 8); void __percpu *pptr; =20 - pptr =3D __alloc_percpu_gfp(size, 8, GFP_USER | __GFP_NOWARN); + pptr =3D __alloc_percpu_gfp(size, 8, gfp); if (!pptr) goto free_elems; htab_elem_set_ptr(get_htab_elem(htab, i), htab->map.key_size, @@ -347,7 +348,7 @@ static int alloc_extra_elems(struct bpf_htab *htab) int cpu; =20 pptr =3D __alloc_percpu_gfp(sizeof(struct htab_elem *), 8, - GFP_USER | __GFP_NOWARN); + GFP_USER | __GFP_NOWARN | __GFP_ACCOUNT); if (!pptr) return -ENOMEM; =20 @@ -444,7 +445,7 @@ static struct bpf_map *htab_map_alloc(union bpf_attr = *attr) int err, i; u64 cost; =20 - htab =3D kzalloc(sizeof(*htab), GFP_USER); + htab =3D kzalloc(sizeof(*htab), GFP_USER | __GFP_ACCOUNT); if (!htab) return ERR_PTR(-ENOMEM); =20 @@ -892,6 +893,7 @@ static struct htab_elem *alloc_htab_elem(struct bpf_h= tab *htab, void *key, bool percpu, bool onallcpus, struct htab_elem *old_elem) { + const gfp_t gfp =3D GFP_ATOMIC | __GFP_NOWARN | __GFP_ACCOUNT; u32 size =3D htab->map.value_size; bool prealloc =3D htab_is_prealloc(htab); struct htab_elem *l_new, **pl_new; @@ -925,8 +927,7 @@ static struct htab_elem *alloc_htab_elem(struct bpf_h= tab *htab, void *key, l_new =3D ERR_PTR(-E2BIG); goto dec_count; } - l_new =3D kmalloc_node(htab->elem_size, GFP_ATOMIC | __GFP_NOWARN, - htab->map.numa_node); + l_new =3D kmalloc_node(htab->elem_size, gfp, htab->map.numa_node); if (!l_new) { l_new =3D ERR_PTR(-ENOMEM); goto dec_count; @@ -942,8 +943,7 @@ static struct htab_elem *alloc_htab_elem(struct bpf_h= tab *htab, void *key, pptr =3D htab_elem_get_ptr(l_new, key_size); } else { /* alloc_percpu zero-fills */ - pptr =3D __alloc_percpu_gfp(size, 8, - GFP_ATOMIC | __GFP_NOWARN); + pptr =3D __alloc_percpu_gfp(size, 8, gfp); if (!pptr) { kfree(l_new); l_new =3D ERR_PTR(-ENOMEM); --=20 2.26.2