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 1CCDCC4338F for ; Mon, 16 Aug 2021 08:17:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ECE6561AFD for ; Mon, 16 Aug 2021 08:17:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234680AbhHPIS1 (ORCPT ); Mon, 16 Aug 2021 04:18:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34892 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234571AbhHPIS0 (ORCPT ); Mon, 16 Aug 2021 04:18:26 -0400 Received: from ozlabs.org (ozlabs.org [IPv6:2401:3900:2:1::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 818C4C061764 for ; Mon, 16 Aug 2021 01:17:55 -0700 (PDT) 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 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --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--