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=-9.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 8FF7AC432C3 for ; Sat, 16 Nov 2019 16:49:55 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3E4DC216F4 for ; Sat, 16 Nov 2019 16:49:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="MGOA/4up" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3E4DC216F4 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 47Fh5r4dk5zF4Br for ; Sun, 17 Nov 2019 03:49:52 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=198.145.29.99; helo=mail.kernel.org; envelope-from=sashal@kernel.org; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="MGOA/4up"; dkim-atps=neutral Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 47Ffh245h4zDqBK for ; Sun, 17 Nov 2019 02:45:54 +1100 (AEDT) Received: from sasha-vm.mshome.net (unknown [50.234.116.4]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id AA33D207DD; Sat, 16 Nov 2019 15:45:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573919152; bh=BGVEmFHLvjGZOll6shoHOgq10KG5rn1aBv9tgolO9tc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MGOA/4up7q0CK/2gMhWeliF4QoKGK6pJK+zA0cnC92/mOSnujLQ1gyU2/HWaSod4C U2EKR5W/y4hhaWvXv3OtSi/+OUCe/3MoWvYGb+Fp+kfBmtgh9kA27fcRO38msRKaZj w7Io/TGawz/1JgnjcGifHCudmUo/JpYunKcGpP7Y= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 165/237] powerpc/powernv: hold device_hotplug_lock when calling device_online() Date: Sat, 16 Nov 2019 10:40:00 -0500 Message-Id: <20191116154113.7417-165-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191116154113.7417-1-sashal@kernel.org> References: <20191116154113.7417-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kate Stewart , Michal Hocko , David Hildenbrand , Heiko Carstens , Paul Mackerras , Rashmica Gupta , "K. Y. Srinivasan" , Boris Ostrovsky , Sasha Levin , Michael Neuling , Stephen Hemminger , Jonathan Corbet , "Rafael J . Wysocki" , Nathan Fontenot , Len Brown , Pavel Tatashin , Haiyang Zhang , linuxppc-dev@lists.ozlabs.org, YASUAKI ISHIMATSU , Dan Williams , Andrew Morton , Vlastimil Babka , Oscar Salvador , Juergen Gross , Mathieu Malaterre , Greg Kroah-Hartman , "Rafael J. Wysocki" , John Allen , Thomas Gleixner , Philippe Ombredanne , Martin Schwidefsky , Joonsoo Kim , Linus Torvalds Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: David Hildenbrand [ Upstream commit cec1680591d6d5b10ecc10f370210089416e98af ] device_online() should be called with device_hotplug_lock() held. Link: http://lkml.kernel.org/r/20180925091457.28651-5-david@redhat.com Signed-off-by: David Hildenbrand Reviewed-by: Pavel Tatashin Reviewed-by: Rashmica Gupta Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Cc: Rashmica Gupta Cc: Balbir Singh Cc: Michael Neuling Cc: Boris Ostrovsky Cc: Dan Williams Cc: Greg Kroah-Hartman Cc: Haiyang Zhang Cc: Heiko Carstens Cc: John Allen Cc: Jonathan Corbet Cc: Joonsoo Kim Cc: Juergen Gross Cc: Kate Stewart Cc: "K. Y. Srinivasan" Cc: Len Brown Cc: Martin Schwidefsky Cc: Mathieu Malaterre Cc: Michal Hocko Cc: Nathan Fontenot Cc: Oscar Salvador Cc: Philippe Ombredanne Cc: Rafael J. Wysocki Cc: "Rafael J. Wysocki" Cc: Stephen Hemminger Cc: Thomas Gleixner Cc: Vlastimil Babka Cc: YASUAKI ISHIMATSU Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Sasha Levin --- arch/powerpc/platforms/powernv/memtrace.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/platforms/powernv/memtrace.c b/arch/powerpc/platforms/powernv/memtrace.c index 232bf5987f91d..dd3cc4632b9ae 100644 --- a/arch/powerpc/platforms/powernv/memtrace.c +++ b/arch/powerpc/platforms/powernv/memtrace.c @@ -244,9 +244,11 @@ static int memtrace_online(void) * we need to online the memory ourselves. */ if (!memhp_auto_online) { + lock_device_hotplug(); walk_memory_range(PFN_DOWN(ent->start), PFN_UP(ent->start + ent->size - 1), NULL, online_mem_block); + unlock_device_hotplug(); } /* -- 2.20.1