From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Jeff Garzik <jeff@garzik.org>
Cc: linux-ide@vger.kernel.org
Subject: Re: [PATCH] Re: libata: PIO bounce copies to avoid long IRQ off runs
Date: Tue, 29 Apr 2008 23:01:05 +0100 [thread overview]
Message-ID: <20080429230105.710cd464@core> (raw)
In-Reply-To: <20080429220128.GA25818@havoc.gtf.org>
On Tue, 29 Apr 2008 18:01:28 -0400
Jeff Garzik <jeff@garzik.org> wrote:
> I would tend to prefer this version...
>
> - allocate buffer at init time
> - use lesser-used KM_IRQ1
Seems reasonable enough. You actually want to deal with the buffer at run
time however because you care about two cases
1. Box with no highmem - easy to do compile time
2. Box with no high pages allocated - kind of hairy with gcc as
the crystal ball feature doesn't work.
prev parent reply other threads:[~2008-04-29 22:08 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-29 13:47 [PATCH] libata: PIO bounce copies to avoid long IRQ off runs Alan Cox
2008-04-29 15:51 ` Grant Grundler
2008-04-29 16:21 ` Alan Cox
2008-04-29 22:01 ` [PATCH] " Jeff Garzik
2008-04-29 22:01 ` Alan Cox [this message]
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