From: David Woodhouse <dwmw2@infradead.org>
To: William Waddington <csbwaddington@att.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: query regarding 'map_user_kiobuf'
Date: Wed, 30 May 2001 16:37:50 +0100 [thread overview]
Message-ID: <14179.991237070@redhat.com> (raw)
In-Reply-To: <593aht81ed3p199mr0l1m896d32bgr6qnv@4ax.com>
In-Reply-To: <593aht81ed3p199mr0l1m896d32bgr6qnv@4ax.com> <fa.f4liqpv.6lq2r7@ifi.uio.no> <CA256A5B.00548719.00@d73mta01.au.ibm.com> <fa.e3ea6bv.t0ceia@ifi.uio.no>
csbwaddington@att.net said:
> I have a couple of user DMA drivers up and running, but in light of
> your comment, I am not so sure.
I'm sorry, it seems I lied. Although map_user_kiobuf in 2.2 used to lock
the pages, apparently that's no longer necessary. You just need to make
sure they're marked dirty before you unmap the kiobuf.
--
dwmw2
prev parent reply other threads:[~2001-05-30 15:38 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <fa.f4liqpv.6lq2r7@ifi.uio.no>
2001-05-29 14:04 ` query regarding 'map_user_kiobuf' mdaljeet
2001-05-29 19:28 ` David Woodhouse
[not found] ` <fa.e3ea6bv.t0ceia@ifi.uio.no>
2001-05-30 15:12 ` William Waddington
2001-05-30 15:37 ` David Woodhouse [this message]
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