From: Timur Tabi <timur.tabi@ammasso.com>
To: Roland Dreier <roland@topspin.com>
Cc: Troy Benjegerdes <hozer@hozed.org>,
linux-kernel@vger.kernel.org, openib-general@openib.org
Subject: Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
Date: Mon, 18 Apr 2005 11:09:35 -0500 [thread overview]
Message-ID: <4263DBBF.9040801@ammasso.com> (raw)
In-Reply-To: <52mzs51g5g.fsf@topspin.com>
Roland Dreier wrote:
> Troy> How is memory pinning handled? (I haven't had time to read
> Troy> all the code, so please excuse my ignorance of something
> Troy> obvious).
>
> The userspace library calls mlock() and then the kernel does
> get_user_pages().
Why do you call mlock() and get_user_pages()? In our code, we only call mlock(), and the
memory is pinned. We have a test case that fails if only get_user_pages() is called, but
it passes if only mlock() is called.
--
Timur Tabi
Staff Software Engineer
timur.tabi@ammasso.com
next prev parent reply other threads:[~2005-04-18 16:10 UTC|newest]
Thread overview: 143+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-04 22:09 [PATCH][RFC][0/4] InfiniBand userspace verbs implementation Roland Dreier
2005-04-04 22:09 ` [PATCH][RFC][1/4] IB: core changes for userspace verbs Roland Dreier
2005-04-04 22:09 ` [PATCH][RFC][2/4] IB: userspace verbs main module Roland Dreier
2005-04-04 22:09 ` [PATCH][RFC][3/4] IB: userspace verbs mthca changes Roland Dreier
2005-04-04 22:09 ` [PATCH][RFC][4/4] IB: userspace verbs Kconfig/Makefile changes Roland Dreier
2005-04-04 22:49 ` [openib-general] [PATCH][RFC][3/4] IB: userspace verbs mthca changes Tom Duffy
2005-04-04 23:34 ` Roland Dreier
2005-04-21 0:37 ` [PATCH][MTHCA] fix sparc build WAS: " Tom Duffy
2005-04-21 0:38 ` David S. Miller
2005-04-11 14:22 ` [PATCH][RFC][0/4] InfiniBand userspace verbs implementation Troy Benjegerdes
2005-04-11 15:34 ` Roland Dreier
2005-04-11 16:33 ` Troy Benjegerdes
2005-04-11 16:56 ` Roland Dreier
2005-04-11 18:01 ` Troy Benjegerdes
2005-04-11 18:03 ` Roland Dreier
2005-04-12 0:13 ` Andrew Morton
2005-04-12 0:21 ` Roland Dreier
2005-04-12 18:23 ` Michael S. Tsirkin
2005-04-13 18:28 ` Roland Dreier
2005-04-13 19:32 ` Andrew Morton
2005-04-13 1:04 ` [openib-general] " Libor Michalek
2005-04-18 17:15 ` Timur Tabi
2005-04-26 3:31 ` Libor Michalek
2005-05-04 18:27 ` Timur Tabi
2005-05-05 18:48 ` Timur Tabi
2005-05-06 23:08 ` Timur Tabi
2005-05-07 13:18 ` Hugh Dickins
2005-05-07 14:45 ` Timur Tabi
2005-05-07 16:30 ` Hugh Dickins
2005-05-11 20:12 ` William Jordan
2005-05-11 20:42 ` Hugh Dickins
2005-05-11 22:52 ` Andrea Arcangeli
2005-05-11 22:49 ` Andrea Arcangeli
2005-05-11 22:53 ` Timur Tabi
2005-05-11 23:05 ` Andrea Arcangeli
2005-05-05 23:34 ` Libor Michalek
2005-04-18 16:22 ` Timur Tabi
2005-04-18 16:43 ` Christoph Hellwig
2005-04-18 16:45 ` Timur Tabi
2005-04-24 2:44 ` Andrew Morton
2005-04-24 14:23 ` Timur Tabi
2005-04-24 20:53 ` Greg KH
2005-04-24 21:52 ` Timur Tabi
2005-04-25 1:03 ` Greg KH
2005-04-25 4:12 ` Timur Tabi
2005-04-25 13:30 ` Dave Hansen
2005-04-25 13:15 ` Roland Dreier
2005-04-25 13:17 ` Christoph Hellwig
2005-04-25 14:16 ` Roland Dreier
2005-04-25 20:54 ` Andrew Morton
2005-04-25 21:12 ` Roland Dreier
2005-04-25 22:14 ` Andrew Morton
2005-04-25 22:21 ` Timur Tabi
2005-04-25 22:32 ` Andrew Morton
2005-04-25 23:58 ` Roland Dreier
2005-04-26 0:11 ` Andrew Morton
2005-04-26 0:23 ` Roland Dreier
2005-04-26 0:37 ` Andrew Morton
2005-04-26 2:21 ` Timur Tabi
2005-04-26 3:16 ` Andrew Morton
2005-04-26 3:38 ` Timur Tabi
2005-04-26 4:33 ` Andrew Morton
2005-04-26 14:07 ` Timur Tabi
2005-04-26 15:31 ` Roland Dreier
2005-04-26 15:42 ` [openib-general] " Libor Michalek
2005-04-26 15:49 ` Roland Dreier
2005-04-26 19:28 ` Andrew Morton
2005-04-26 20:14 ` Roland Dreier
2005-04-26 20:18 ` Timur Tabi
2005-04-26 20:37 ` Andrew Morton
2005-04-29 14:26 ` Bill Jordan
2005-04-29 15:56 ` Caitlin Bestler
2005-04-29 16:45 ` RDMA memory registration (was: [openib-general] Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation) Roland Dreier
2005-04-29 17:23 ` Libor Michalek
2005-04-29 18:22 ` RDMA memory registration Brice Goglin
2005-04-29 18:31 ` Roland Dreier
2005-04-29 19:33 ` [openib-general] " Grant Grundler
2005-05-03 8:42 ` David Addison
2005-05-03 15:36 ` Grant Grundler
2005-04-29 19:43 ` RDMA memory registration (was: [openib-general] Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation) Bill Jordan
2005-04-29 19:45 ` RDMA memory registration Roland Dreier
2005-04-29 17:04 ` [openib-general] Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation Libor Michalek
2005-04-30 0:31 ` Caitlin Bestler
2005-05-03 18:43 ` Andy Isaacson
2005-05-03 19:04 ` Caitlin Bestler
2005-05-04 18:22 ` William Jordan
2005-05-05 1:27 ` Rik van Riel
2005-05-05 1:57 ` Andy Isaacson
2005-04-26 20:32 ` Andrew Morton
2005-04-26 21:23 ` Roland Dreier
2005-04-27 0:05 ` Andrew Morton
2005-04-27 2:13 ` Roland Dreier
2005-04-27 3:21 ` Caitlin Bestler
2005-04-27 3:15 ` Caitlin Bestler
2005-04-26 2:03 ` IWAMOTO Toshihiro
2005-04-26 2:16 ` Timur Tabi
2005-04-26 2:26 ` [openib-general] " Stephen Langdon
2005-04-25 22:23 ` Timur Tabi
2005-04-25 22:35 ` Andrew Morton
2005-04-25 22:42 ` Timur Tabi
2005-04-25 23:13 ` Andrew Morton
2005-04-25 23:21 ` Timur Tabi
2005-04-25 23:27 ` Andrew Morton
2005-04-26 0:08 ` Roland Dreier
2005-04-25 22:51 ` [openib-general] Re: [PATCH][RFC][0/4] InfiniBand userspace verbsimplementation Bob Woodruff
2005-04-25 23:13 ` Timur Tabi
2005-04-25 23:17 ` Andrew Morton
2005-04-25 23:29 ` Bob Woodruff
2005-04-25 23:17 ` [openib-general] Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation Libor Michalek
2005-04-25 23:24 ` Andrew Morton
2005-04-25 23:37 ` Caitlin Bestler
2005-04-26 0:10 ` Andrew Morton
2005-04-26 3:55 ` Libor Michalek
2005-04-26 0:02 ` Roland Dreier
2005-04-26 6:12 ` Christoph Hellwig
2005-04-26 13:45 ` [openib-general] " Caitlin Bestler
2005-04-26 15:24 ` Timur Tabi
2005-04-25 19:11 ` Andy Isaacson
2005-04-18 16:09 ` Timur Tabi [this message]
2005-04-18 16:12 ` Roland Dreier
2005-04-18 16:50 ` Timur Tabi
2005-04-21 19:47 ` Pavel Machek
2005-04-18 16:16 ` Arjan van de Ven
2005-04-18 16:25 ` Timur Tabi
2005-04-18 19:40 ` Arjan van de Ven
2005-04-18 20:00 ` Timur Tabi
2005-04-18 20:05 ` Arjan van de Ven
2005-04-18 20:19 ` Timur Tabi
2005-04-18 20:07 ` [openib-general] " Bernhard Fischer
2005-04-21 2:17 ` Troy Benjegerdes
2005-04-21 3:07 ` Timur Tabi
2005-04-21 17:38 ` Andy Isaacson
2005-04-21 18:39 ` Timur Tabi
2005-04-21 19:56 ` Andy Isaacson
2005-04-21 20:07 ` Timur Tabi
2005-04-21 20:12 ` Chris Wright
2005-04-21 20:14 ` Timur Tabi
2005-04-21 20:25 ` Chris Wright
2005-04-21 20:30 ` Arjan van de Ven
2005-04-22 6:14 ` Greg KH
2005-04-22 17:55 ` Timur Tabi
2005-04-22 18:12 ` Arjan van de Ven
2005-04-29 0:56 ` Andrew Morton
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