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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 A570DC432BE for ; Mon, 16 Aug 2021 08:17:59 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id ABD9F61B00 for ; Mon, 16 Aug 2021 08:17:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org ABD9F61B00 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=canb.auug.org.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id 2A07A8D0003; Mon, 16 Aug 2021 04:17:58 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 2508D8D0001; Mon, 16 Aug 2021 04:17:58 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 166C38D0003; Mon, 16 Aug 2021 04:17:58 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0115.hostedemail.com [216.40.44.115]) by kanga.kvack.org (Postfix) with ESMTP id F13448D0001 for ; Mon, 16 Aug 2021 04:17:57 -0400 (EDT) Received: from smtpin05.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 91F39824999B for ; Mon, 16 Aug 2021 08:17:57 +0000 (UTC) X-FDA: 78480240594.05.5A03F4C Received: from ozlabs.org (bilbo.ozlabs.org [203.11.71.1]) by imf23.hostedemail.com (Postfix) with ESMTP id 994C590003A2 for ; Mon, 16 Aug 2021 08:17:56 +0000 (UTC) Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4Gp6V84K4hz9sWX; Mon, 16 Aug 2021 18:17:52 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canb.auug.org.au; s=201702; t=1629101873; bh=RLWKiSjAQCMHPOhU75/VtJgHuV4r1WMRmKsyWI+UWRw=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=AdKLPenQUm12RKLbPy2eMuMzsqW5QoiGXA8LW3X+USacgQ9gqSmKp0UvDTBowQC+s 6Ynl42UdKhMDV0wwAYti8BgDr56dXJWauWYFKbaXggxokhR/Jtp+v/DRVRXHl5obBo 9X+4hYcFj3LW32sZF0G/06xWF1tbVVYLfH5fpSpiv43+ccHRkgHFnYcm2rbJyurYh5 ApXzHJkxEEKFmVesIuZcDNjGoc5RKV+MGEQCkIeAbPX0PcICvXEdIUWWy+afKqQQh4 zqlqtcMylLLMn3ADamhuZCAb+z/V5eP6cIszNoIpVM/Lgt6e5BSnEOG30hXgJp1iO0 7FunSlQta7lKQ== Date: Mon, 16 Aug 2021 18:17:51 +1000 From: Stephen Rothwell To: David Hildenbrand Cc: qiang.zhang@windriver.com, vbabka@suse.cz, akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] mm, slub: add cpus_read_lock/unlock() for slab_mem_going_offline_callback() Message-ID: <20210816181751.17f98cc2@canb.auug.org.au> In-Reply-To: References: <20210816074605.30336-1-qiang.zhang@windriver.com> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/Vjh3bEHm7.Fal8bpPQ+pRVZ"; protocol="application/pgp-signature"; micalg=pgp-sha256 X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 994C590003A2 X-Stat-Signature: 9oat8ujibh4kziimracbir7imu4ou4ag Authentication-Results: imf23.hostedemail.com; dkim=pass header.d=canb.auug.org.au header.s=201702 header.b=AdKLPenQ; dmarc=none; spf=pass (imf23.hostedemail.com: domain of sfr@canb.auug.org.au designates 203.11.71.1 as permitted sender) smtp.mailfrom=sfr@canb.auug.org.au X-HE-Tag: 1629101876-665583 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: --Sig_/Vjh3bEHm7.Fal8bpPQ+pRVZ Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi David, On Mon, 16 Aug 2021 10:04:13 +0200 David Hildenbrand wro= te: > > On 16.08.21 09:46, qiang.zhang@windriver.com wrote: > > From: "Qiang.Zhang" > >=20 > > The flush_all_cpus_locked() should be called with cpus_read_lock/unlock= (), > > ensure flush_cpu_slab() can be executed on schedule_on CPU. > >=20 > > Fixes: 1c84f3c91640 ("mm, slub: fix memory and cpu hotplug related lock= ordering issues") =20 >=20 > Which branch contains this commit? At least not linux.git or linux-next It is Andrew's mmotm which is included in linux-next but gets rebased often, so, for example, that SHA1 is no longer valid in linux-next today (is is now fd917c6407fb). This (unfortunately) make Fixes tags less useful for mmotm :-( --=20 Cheers, Stephen Rothwell --Sig_/Vjh3bEHm7.Fal8bpPQ+pRVZ Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAmEaHy8ACgkQAVBC80lX 0GwJDgf/arO+wfX/OLOUqc5HOrLH1Hj6N0kVI4C087Y4a+Zwcoch2KGUGTbj/dNj aERoyV5vRfV5K1hlvbVrbaKL2wW6x8u51GHaeszZkErKiV6J1TMKylFNtMUKvYyA 9wONyCEdZlUsNxKn2M26MMle1qOAELpsMpFPxlhVNum4HU3c5IaFK8t8cwU3jds+ oWyp5aQV/QukcZl70lQmAguMnq/FYOK7W5h8a5irOaRmO6LefWc3EvcXMO9eRfCb UO/zBz7lvVHfW1qGqHzip/IAjTPiG5ciYp4wK148TASyLKsg9p5hAaVNl0BLqPmB 6b81na+pg2rpjW9esmM4vu/tEMGymA== =SbsZ -----END PGP SIGNATURE----- --Sig_/Vjh3bEHm7.Fal8bpPQ+pRVZ--