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=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, URIBL_BLOCKED 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 1BBA4C282CB for ; Tue, 5 Feb 2019 23:44:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DC2F72184B for ; Tue, 5 Feb 2019 23:44:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=canb.auug.org.au header.i=@canb.auug.org.au header.b="Z+uCWaV7" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728175AbfBEXoi (ORCPT ); Tue, 5 Feb 2019 18:44:38 -0500 Received: from ozlabs.org ([203.11.71.1]:42683 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725967AbfBEXoi (ORCPT ); Tue, 5 Feb 2019 18:44:38 -0500 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 (2048 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPSA id 43vLlQ5ltNz9s3l; Wed, 6 Feb 2019 10:44:34 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=canb.auug.org.au; s=201702; t=1549410275; bh=efUyDPjQoZeLCUBHeUOPt4mtiY+3lGvvpSdI/Gp9sGE=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=Z+uCWaV7rIa9D/B1SVxiqlhaV3xr+MuuD+DM/F0kR450c066qll/bNNqQ+ufm0pQ8 loNkMXteEWynTuV7LIhdIstjQYVzSNOj39Q2jPGUOV7E0fw5oGxDW0bAKTwI95q75E AlX4FVMQD0D4ML0KpMA70xLogHOvtPalpR7CQ1xspURX37Sgl7NgrfFplEiC0axYPk hkXq9mOvr0WNBnbRm6nrsDFx+iAuB5vBq1/y+CC4O8Ds1ipvTGX9tiLMJjbSRn0cFi HM1qQKedDNd/We41LKYSb/2N8ecaF6Db+MoNTU3yyHfIeiQpURVR3xgY9cbl5Ed1TH DYgiAjWaKm/vg== Date: Wed, 6 Feb 2019 10:44:33 +1100 From: Stephen Rothwell To: Paul Burton Cc: Ralf Baechle , James Hogan , Linux Next Mailing List , Linux Kernel Mailing List , Huacai Chen , Huang Pei Subject: Re: linux-next: manual merge of the mips tree with the mips-fixes tree Message-ID: <20190206104433.1c832a0b@canb.auug.org.au> In-Reply-To: <20190205233530.tnk6boxzxm7okgcr@pburton-laptop> References: <20190206091736.73bd95ec@canb.auug.org.au> <20190205233530.tnk6boxzxm7okgcr@pburton-laptop> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; boundary="Sig_/I8EBZ///vtMYXyZ=Im65Tyu"; protocol="application/pgp-signature" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --Sig_/I8EBZ///vtMYXyZ=Im65Tyu Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi Paul, On Tue, 5 Feb 2019 23:35:31 +0000 Paul Burton wrote: > > cmpxchg() doesn't need the added loongson_llsc_mb() barrier that > set_pte() has in mips-fixes because for the affected Loongson 3 > configurations the smp_mb__before_llsc() that cmpxchg() already contains > is equivalent (both will emit a "sync 0" instruction). OK, good to know, thanks. --=20 Cheers, Stephen Rothwell --Sig_/I8EBZ///vtMYXyZ=Im65Tyu Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAlxaH+EACgkQAVBC80lX 0GxYNQf/ftzRetfxC0vB4nWsaAsrCpC2G63z0791p/OZx1lMk217b1Z4q1pFZ4qo KXn/v2C0UF4NJkUoDTCvmWhaxL+hj5Uj662iSFm3soYpXTyNRujLZ1DY+LyiOpyC +UIFf0enA8JZ+KJlE9M3TKP1dR6S59OiGocpIqmcqInE9hpcc08qwxCh6/LwTGAl w5nE7j0rJLxXnrSgPipV1SMMNT7PUANZ+6Hicm7d4p3vJVy+L39cH5GMlk0YB5XN mgDkcIavnYRQJW563H+hkLqcvynohd0hBohrSZhpwcRB51k1NonggVkr+T2mtQcC Xm/049xk1/DUktO1jtxovS2ORwASsw== =7jT0 -----END PGP SIGNATURE----- --Sig_/I8EBZ///vtMYXyZ=Im65Tyu--