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=-9.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,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 048ADC433E0 for ; Wed, 27 May 2020 17:37:12 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 9AA0920707 for ; Wed, 27 May 2020 17:37:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="GMaJk/YN" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9AA0920707 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=oracle.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 048DE8001A; Wed, 27 May 2020 13:37:11 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id F17C680010; Wed, 27 May 2020 13:37:10 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E02858001A; Wed, 27 May 2020 13:37:10 -0400 (EDT) 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 C47EC80010 for ; Wed, 27 May 2020 13:37:10 -0400 (EDT) Received: from smtpin23.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 87859DA98D for ; Wed, 27 May 2020 17:37:10 +0000 (UTC) X-FDA: 76863205020.23.toy72_2c1382f26d54 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin23.hostedemail.com (Postfix) with ESMTP id 753603760C for ; Wed, 27 May 2020 17:37:10 +0000 (UTC) X-HE-Tag: toy72_2c1382f26d54 X-Filterd-Recvd-Size: 7274 Received: from userp2120.oracle.com (userp2120.oracle.com [156.151.31.85]) by imf05.hostedemail.com (Postfix) with ESMTP for ; Wed, 27 May 2020 17:37:09 +0000 (UTC) Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 04RHRk7S158957; Wed, 27 May 2020 17:36:32 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=corp-2020-01-29; bh=efP/mXxmY+Jo1bVM+X6fJTP9YFt5MPHFZ0S23zpocQ4=; b=GMaJk/YNJ4X9LiJmPh3oard50FHo21spuc/kg1iGAYwJbub5g3aVkizfWzf5MWkgAXSz cAInd1o+XcfcRT1zq7MYQ/T2yadm7PdQ5FgyDlNmYilNPP6N374z/jzHL/r5OwiyDAGl +HbXKaIqWQBZcDb73/aT3iXS4Dh9oOR6H85HxlbIogB+mQvaaTOZWpq/4hMH3ci+dTDQ /WTcXndjy0DWdNku1rOf9G4K2HWec6h3ehxzMUTk9MBYtP+byjAFRvWrNheA0SToMGbq 5pYQuGRhbmCpsAZs8Q96+c/iXK9z0BKRpJ2sZq8RfXxKM5NUw1TG8OOxhGwvbRcOYQ8T 1Q== Received: from userp3020.oracle.com (userp3020.oracle.com [156.151.31.79]) by userp2120.oracle.com with ESMTP id 318xbk0v58-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 27 May 2020 17:36:32 +0000 Received: from pps.filterd (userp3020.oracle.com [127.0.0.1]) by userp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 04RHXbJm142828; Wed, 27 May 2020 17:36:31 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userp3020.oracle.com with ESMTP id 317dkutu3u-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 27 May 2020 17:36:31 +0000 Received: from abhmp0002.oracle.com (abhmp0002.oracle.com [141.146.116.8]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 04RHaK0V003965; Wed, 27 May 2020 17:36:20 GMT Received: from localhost.localdomain (/98.229.125.203) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 27 May 2020 10:36:20 -0700 From: Daniel Jordan To: Andrew Morton , Herbert Xu , Steffen Klassert Cc: Alex Williamson , Alexander Duyck , Dan Williams , Dave Hansen , David Hildenbrand , Jason Gunthorpe , Jonathan Corbet , Josh Triplett , Kirill Tkhai , Michal Hocko , Pavel Machek , Pavel Tatashin , Peter Zijlstra , Randy Dunlap , Robert Elliott , Shile Zhang , Steven Sistare , Tejun Heo , Zi Yan , linux-crypto@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Daniel Jordan Subject: [PATCH v3 2/8] padata: initialize earlier Date: Wed, 27 May 2020 13:36:02 -0400 Message-Id: <20200527173608.2885243-3-daniel.m.jordan@oracle.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200527173608.2885243-1-daniel.m.jordan@oracle.com> References: <20200527173608.2885243-1-daniel.m.jordan@oracle.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9633 signatures=668686 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 malwarescore=0 bulkscore=0 spamscore=0 suspectscore=2 mlxscore=0 adultscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2005270137 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9633 signatures=668686 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=999 spamscore=0 mlxscore=0 lowpriorityscore=0 priorityscore=1501 phishscore=0 cotscore=-2147483648 suspectscore=2 bulkscore=0 clxscore=1015 impostorscore=0 malwarescore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2005270136 X-Rspamd-Queue-Id: 753603760C X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam05 Content-Transfer-Encoding: quoted-printable 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: padata will soon initialize the system's struct pages in parallel, so it needs to be ready by page_alloc_init_late(). The error return from padata_driver_init() triggers an initcall warning, so add a warning to padata_init() to avoid silent failure. Signed-off-by: Daniel Jordan Tested-by: Josh Triplett --- include/linux/padata.h | 6 ++++++ init/main.c | 2 ++ kernel/padata.c | 17 ++++++++--------- 3 files changed, 16 insertions(+), 9 deletions(-) diff --git a/include/linux/padata.h b/include/linux/padata.h index a0d8b41850b25..476ecfa41f363 100644 --- a/include/linux/padata.h +++ b/include/linux/padata.h @@ -164,6 +164,12 @@ struct padata_instance { #define PADATA_INVALID 4 }; =20 +#ifdef CONFIG_PADATA +extern void __init padata_init(void); +#else +static inline void __init padata_init(void) {} +#endif + extern struct padata_instance *padata_alloc_possible(const char *name); extern void padata_free(struct padata_instance *pinst); extern struct padata_shell *padata_alloc_shell(struct padata_instance *p= inst); diff --git a/init/main.c b/init/main.c index 03371976d3872..df32f67214d23 100644 --- a/init/main.c +++ b/init/main.c @@ -63,6 +63,7 @@ #include #include #include +#include #include #include #include @@ -1482,6 +1483,7 @@ static noinline void __init kernel_init_freeable(vo= id) smp_init(); sched_init_smp(); =20 + padata_init(); page_alloc_init_late(); /* Initialize page ext after all struct pages are initialized. */ page_ext_init(); diff --git a/kernel/padata.c b/kernel/padata.c index 835919c745266..6f709bc0fc413 100644 --- a/kernel/padata.c +++ b/kernel/padata.c @@ -31,7 +31,6 @@ #include #include #include -#include =20 #define MAX_OBJ_NUM 1000 =20 @@ -1050,26 +1049,26 @@ void padata_free_shell(struct padata_shell *ps) } EXPORT_SYMBOL(padata_free_shell); =20 -#ifdef CONFIG_HOTPLUG_CPU - -static __init int padata_driver_init(void) +void __init padata_init(void) { +#ifdef CONFIG_HOTPLUG_CPU int ret; =20 ret =3D cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN, "padata:online", padata_cpu_online, NULL); if (ret < 0) - return ret; + goto err; hp_online =3D ret; =20 ret =3D cpuhp_setup_state_multi(CPUHP_PADATA_DEAD, "padata:dead", NULL, padata_cpu_dead); if (ret < 0) { cpuhp_remove_multi_state(hp_online); - return ret; + goto err; } - return 0; -} -module_init(padata_driver_init); =20 + return; +err: + pr_warn("padata: initialization failed\n"); #endif +} --=20 2.26.2