From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Rothwell Subject: linux-next: build failure after merge of the cgroup tree Date: Fri, 25 Nov 2011 14:50:22 +1100 Message-ID: <20111125145022.d5578c15eb900e2628a072b2@canb.auug.org.au> Mime-Version: 1.0 Content-Type: multipart/signed; protocol="application/pgp-signature"; micalg="PGP-SHA256"; boundary="Signature=_Fri__25_Nov_2011_14_50_22_+1100_a5MHaguyaZ0Zu2S2" Return-path: Received: from calzone.tip.net.au ([203.10.76.15]:60582 "EHLO calzone.tip.net.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750830Ab1KYDu3 (ORCPT ); Thu, 24 Nov 2011 22:50:29 -0500 Sender: linux-next-owner@vger.kernel.org List-ID: To: Tejun Heo Cc: linux-next@vger.kernel.org, linux-kernel@vger.kernel.org, "Rafael J. Wysocki" --Signature=_Fri__25_Nov_2011_14_50_22_+1100_a5MHaguyaZ0Zu2S2 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi Tejun, After merging the cgroup tree, today's linux-next build (x86_64 allmodconfig) failed like this: kernel/cgroup_freezer.c: In function 'freezer_can_attach': kernel/cgroup_freezer.c:179:3: error: implicit declaration of function '__c= group_freezing_or_frozen' [-Werror=3Dimplicit-function-declaration] Caused by commit cfb5ec210751 ("cgroup: don't use subsys->can_attach_task () or ->attach_task()") from the cgroup tree interacting with commit 22b4e111fa01 ("cgroup_freezer: prepare for removal of TIF_FREEZE") from the pm tree. I don't know how to fix this up (the obvious fix will cause us to have nested rcu_read_lock()s and I have no idea if that is allowed). Can you please provide me with a merge resolution? I am also wondering why such closely related work is happening in 2 different trees. I have used the cgroup tree from next-20111124 for today. --=20 Cheers, Stephen Rothwell sfr@canb.auug.org.au http://www.canb.auug.org.au/~sfr/ --Signature=_Fri__25_Nov_2011_14_50_22_+1100_a5MHaguyaZ0Zu2S2 Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAEBCAAGBQJOzxB+AAoJEECxmPOUX5FEZboP/iJXwop797I0aSJ9vmeUogrq SNfWjZJOTq2UGedfVHDGzA2qjBZoeHHNdmcevG09u5VN8svI588p1oSs2S478TYy 0Phe3gbXc05jGGKOX4yru4utaWrQszzy+/fw5Cq5vQuVSynZaN7BTjPr2Mzv0oBY LxMIFju973FNdtlY+TcFHPP0ojz5ivow2BC9e7E8EfiKnshe07wS/MKTFVclRv2w HDMsmHPRVfvrEb9oM+efAGZI6nnGhlnKyyeN58BHLkuY36l3iKtK3inTu4eQ0+Hx yeaOeZYL//2AcwNHF65kfhur+0xQsvZaYmBmMc41DiJOSP/zaj60QPTpFlKeacOF C96rE+lEfWpyuSEJmEECfPlANQi0W/vWNrXz86AQu61+kTQr3MCEHcpft6uXBC5h 2+MPUh8NwB3YLTUY7DK59nTilGGJioP8X/BSImUnGK3Dso4q4OPf4t8zO1ZPpOBb so4gve5wjgvGLtrfnSesyoavoD1juQLcJIjAT+66AJ1RPPZ4dDmN3rrGNhiQr+7i Sx0rmWj0Zwo6QyWs7jlZulKrAs/dW5vywyrnPS0wCnPEy/sDXSCi24eKprUsVwWH DtqeeTRx4PjIgMRoNrXw0QjMFagGgPfBb79UcgnJdPIQ+PaCx0kLcxGNNAe/EXEK jNnPByH+NOZY/c7QOxYE =gvcq -----END PGP SIGNATURE----- --Signature=_Fri__25_Nov_2011_14_50_22_+1100_a5MHaguyaZ0Zu2S2--