From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Rothwell Subject: linux-next: build failure after merge of the userns tree Date: Fri, 8 Nov 2013 18:07:59 +1100 Message-ID: <20131108180759.12dab53816900b1b58c1ea1b@canb.auug.org.au> Mime-Version: 1.0 Content-Type: multipart/signed; protocol="application/pgp-signature"; micalg="PGP-SHA256"; boundary="Signature=_Fri__8_Nov_2013_18_07_59_+1100_wNYv58u5cR1bxlPN" Return-path: Received: from haggis.pcug.org.au ([203.10.76.10]:47800 "EHLO members.tip.net.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752606Ab3KHHIL (ORCPT ); Fri, 8 Nov 2013 02:08:11 -0500 Sender: linux-next-owner@vger.kernel.org List-ID: To: "Eric W. Biederman" , Al Viro Cc: linux-next@vger.kernel.org, linux-kernel@vger.kernel.org --Signature=_Fri__8_Nov_2013_18_07_59_+1100_wNYv58u5cR1bxlPN Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi Eric, After merging the userns tree, today's linux-next build (powerpc ppc64_defconfig) failed like this: fs/namespace.c: In function 'detach_mounts': fs/namespace.c:1340:2: error: implicit declaration of function 'br_write_lo= ck' [-Werror=3Dimplicit-function-declaration] br_write_lock(&vfsmount_lock); ^ fs/namespace.c:1340:17: error: 'vfsmount_lock' undeclared (first use in thi= s function) br_write_lock(&vfsmount_lock); ^ fs/namespace.c:1340:17: note: each undeclared identifier is reported only o= nce for each function it appears in fs/namespace.c:1345:2: error: implicit declaration of function 'br_write_un= lock' [-Werror=3Dimplicit-function-declaration] br_write_unlock(&vfsmount_lock); ^ Caused by the interaction between commit d7e58b8abc4f ("vfs: Add a function to lazily unmount all mounts from any dentry. v3") from the userns tree and commit 84550b9356af ("RCU'd vfsmounts") from the vfs tree. I don't know how to fix this up, so I have just dropped the userns tree for today. I only dropped that tree because it was the latter of the two conflicting trees. --=20 Cheers, Stephen Rothwell sfr@canb.auug.org.au --Signature=_Fri__8_Nov_2013_18_07_59_+1100_wNYv58u5cR1bxlPN Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAEBCAAGBQJSfI3UAAoJEMDTa8Ir7ZwVL9sP/RyIx4Bgz5gVke55WsKNc42T SI0qdqOtanceP/3pBjtdA37UAkJD8YZgFZE/k5TU6bNHuG+rnhY9B/oVY+IxNaqX vRV0je3ibChGj5SLWEKjMhiJXyBAGutfDSLXwkwHAjF5Yrq8XNBT+h9pBZ1MiDH+ e/mIvRs2RS0eUpANRRPA2VaVORoHw2DKE09E0UFPuuINy6kLyOjRUoHPQEpX9iZU E3faTzOogI5iypiwGLw1ZicmP45Xpqz1islBMjamKcPyVUNzjrwgASzbZ81auHkr OEpDmhdxZpmmhIUrD/I4wC3+uoNbEbt7tprVmpEKD6lWrmg94eSQpLZhoFJ/buyG K+KccIPrLecOqW3M8lWb+e2lG3ibORhmKi/6Q3kzi1DRv9n8fhGiEXA1uonrxPA7 6/zJ77hoQS05eqo3/DgIOh3JTs1uPQAXTGrqbn3dewEVBkgUjT2xM1rXFVJ5Gk08 1TgF+m6+tpQTAj2t8YKEJJK5fhFtAne0hifx99Hj0jr07KOucCXVksCjWhBOB8p9 Ybn2dDZojQBh8WPUmqAB82U7Wq8oA/Xy3nzUnxXCu/pUj0YVc3doLdOHGDvQ1zmP 7ZtpJjD3XHUEFlreDeUbdh+VCPoDnyUxU/5v+CqozSTsLnOZqCE0S/YfNlrebfSV 057F149Gk5aVSaraB/nL =78F/ -----END PGP SIGNATURE----- --Signature=_Fri__8_Nov_2013_18_07_59_+1100_wNYv58u5cR1bxlPN--