From: "David S. Miller" <davem@davemloft.net>
To: Andrew Morton <akpm@osdl.org>
Cc: clemens@endorphin.org, jmorris@redhat.com,
linux-kernel@vger.kernel.org, michal@logix.cz,
adam@yggdrasil.com
Subject: Re: [PATCH 01/04] Adding cipher mode context information to crypto_tfm
Date: Thu, 10 Feb 2005 12:30:45 -0800 [thread overview]
Message-ID: <20050210123045.1e6b2ca3.davem@davemloft.net> (raw)
In-Reply-To: <20050210023344.390fb358.akpm@osdl.org>
On Thu, 10 Feb 2005 02:33:44 -0800
Andrew Morton <akpm@osdl.org> wrote:
> > Is there an easy way to bring pages to lowmem? The cryptoapi is called
> > from the backlog of the networking stack, which is assigned in irq
> > context first and processed softirq context.
>
> Are networking frames ever allocated from highmem? Don't think so.
It is absolutely possible, especially over loopback.
It can happen on the send side for any device which indicates
the NETIF_F_HIGHDMA capability, and because loopback indicates
this feature this means we'll see such highmem pages in packets
on receive too.
There is thus also nothing preventing a real hardware device
from feeding highmem packets into the networking stack.
next prev parent reply other threads:[~2005-02-10 20:32 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-24 11:56 [PATCH 01/04] Adding cipher mode context information to crypto_tfm Fruhwirth Clemens
2005-01-24 12:31 ` James Morris
2005-01-24 22:31 ` Andrew Morton
2005-01-24 23:12 ` Fruhwirth Clemens
2005-01-25 15:52 ` James Morris
2005-01-25 17:38 ` Fruhwirth Clemens
2005-01-25 18:56 ` James Morris
2005-01-29 18:13 ` Fruhwirth Clemens
2005-01-29 18:23 ` Andrew Morton
2005-01-30 18:07 ` Fruhwirth Clemens
2005-02-02 22:46 ` James Morris
2005-02-02 23:28 ` Fruhwirth Clemens
2005-02-02 23:34 ` David S. Miller
2005-02-03 0:21 ` Fruhwirth Clemens
2005-02-03 0:29 ` David S. Miller
2005-02-03 0:40 ` Michal Ludvig
2005-02-03 8:55 ` Fruhwirth Clemens
2005-02-02 23:46 ` James Morris
2005-02-02 23:47 ` James Morris
2005-02-03 11:47 ` Fruhwirth Clemens
2005-02-08 14:14 ` James Morris
2005-02-05 9:23 ` Fruhwirth Clemens
2005-02-08 14:48 ` James Morris
2005-02-08 16:08 ` Fruhwirth Clemens
2005-02-08 16:39 ` Fruhwirth Clemens
2005-02-08 23:30 ` James Morris
2005-02-08 23:53 ` Fruhwirth Clemens
2005-02-09 0:09 ` James Morris
2005-02-09 9:14 ` Fruhwirth Clemens
2005-02-10 0:30 ` James Morris
2005-02-10 1:02 ` Fruhwirth Clemens
2005-02-10 1:19 ` Andrew Morton
2005-02-10 1:37 ` Christophe Saout
2005-02-10 9:48 ` Fruhwirth Clemens
2005-02-10 10:33 ` Andrew Morton
2005-02-10 11:17 ` Fruhwirth Clemens
2005-02-10 17:02 ` James Morris
2005-02-10 17:29 ` Fruhwirth Clemens
2005-02-10 17:54 ` James Morris
2005-02-14 13:20 ` Fruhwirth Clemens
2005-02-14 15:56 ` David S. Miller
2005-02-14 17:06 ` Fruhwirth Clemens
2005-02-14 17:07 ` David S. Miller
2005-02-14 17:28 ` Fruhwirth Clemens
2005-02-14 18:16 ` Andrew Morton
2005-02-22 19:16 ` Fruhwirth Clemens
2005-02-12 0:24 ` Matt Mackall
2005-02-10 20:30 ` David S. Miller [this message]
2005-02-10 1:42 ` James Morris
2005-02-10 9:50 ` Fruhwirth Clemens
2005-02-02 23:00 ` James Morris
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