From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Rothwell Subject: Re: linux-next: manual merge of the mips tree with the mips-fixes tree Date: Wed, 6 Feb 2019 10:44:33 +1100 Message-ID: <20190206104433.1c832a0b@canb.auug.org.au> 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" Return-path: In-Reply-To: <20190205233530.tnk6boxzxm7okgcr@pburton-laptop> Sender: linux-kernel-owner@vger.kernel.org To: Paul Burton Cc: Ralf Baechle , James Hogan , Linux Next Mailing List , Linux Kernel Mailing List , Huacai Chen , Huang Pei List-Id: linux-next.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--