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Sun, 14 Apr 2019 06:57:12 +0000 Received: from DB6PR0501MB2694.eurprd05.prod.outlook.com ([fe80::6ca8:55cc:a7c3:e214]) by DB6PR0501MB2694.eurprd05.prod.outlook.com ([fe80::6ca8:55cc:a7c3:e214%11]) with mapi id 15.20.1771.021; Sun, 14 Apr 2019 06:57:12 +0000 From: Leon Romanovsky To: "jglisse@redhat.com" CC: "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , Jason Gunthorpe , Andrew Morton , Ralph Campbell , John Hubbard Subject: Re: [PATCH] mm/hmm: kconfig split HMM address space mirroring from device memory Thread-Topic: [PATCH] mm/hmm: kconfig split HMM address space mirroring from device memory Thread-Index: AQHU8JDkrzI6G0Gpw0yAwni5wA6t66Y7PWyA Date: Sun, 14 Apr 2019 06:57:12 +0000 Message-ID: <20190414065709.GH3201@mtr-leonro.mtl.com> References: <20190411180326.18958-1-jglisse@redhat.com> In-Reply-To: <20190411180326.18958-1-jglisse@redhat.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: AM6P192CA0057.EURP192.PROD.OUTLOOK.COM (2603:10a6:209:82::34) To DB6PR0501MB2694.eurprd05.prod.outlook.com (2603:10a6:4:82::9) authentication-results: spf=none (sender IP is ) smtp.mailfrom=leonro@mellanox.com; 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received-spf: None (protection.outlook.com: mellanox.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: ggm67+okBOKDBVNC8n3ekiLvs8SHaI2cKQ4FnIebO81391dbej6wB05PZI0qmWFDBbAoM8yKUFYoCYrWZP1fkxCXx2JgWokypALopkrS06fPTxZYe/gAF2VupPZiZf4m6Zu2hp0HZiI5LzOs9qwn2UdZM1YA6gkNPSfpjTjwhkdvnWKyf2tjZpnF1itpGO4FE7yXXzn/CXfI7KakMHiR6676PIaHy16jqHGyQtfFYvBvsBJHfrDtvG/7BUviZVmEuVvOW0EcNKv9byfiDQ6IFOKBdiqwaR6jzxsnmuUy12v39ajfCQ6pv+3jnHUmxHRa8nvGjkelEOKYGT+1TG6zDvlb6BRNaPbd6b/dnbxlnnZG7Z8WZKsRj+4cBLEuTeKlG6fOow2vuIcaHjmYoKe4ID/LUOdDTL7E+0MF/VhNYPY= Content-Type: text/plain; charset="iso-8859-1" Content-ID: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: Mellanox.com X-MS-Exchange-CrossTenant-Network-Message-Id: 5d850f72-b763-42e9-7e05-08d6c0a66b94 X-MS-Exchange-CrossTenant-originalarrivaltime: 14 Apr 2019 06:57:12.8277 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: a652971c-7d2e-4d9b-a6a4-d149256f461b X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB6PR0501MB2584 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu, Apr 11, 2019 at 02:03:26PM -0400, jglisse@redhat.com wrote: > From: J=E9r=F4me Glisse > > To allow building device driver that only care about address space > mirroring (like RDMA ODP) on platform that do not have all the pre- > requisite for HMM device memory (like ZONE_DEVICE on ARM) split the > HMM_MIRROR option dependency from the HMM_DEVICE dependency. > > Signed-off-by: J=E9r=F4me Glisse > Cc: Leon Romanovsky > Cc: Jason Gunthorpe > Cc: Andrew Morton > Cc: Ralph Campbell > Cc: John Hubbard > --- > mm/Kconfig | 17 ++++++++++------- > 1 file changed, 10 insertions(+), 7 deletions(-) > Thanks, It gave me an option simply enable HMM_MIRROR without too much hassle as it was before and compile your v3 [1]. Tested-by: Leon Romanovsky [1] https://patchwork.kernel.org/patch/10894281/