From: Jens Axboe <jens.axboe@oracle.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: marty <martyleisner@yahoo.com>,
linux-kernel@vger.kernel.org, martin.leisner@xerox.com
Subject: Re: disk IO directly from PCI memory to block device sectors
Date: Fri, 26 Sep 2008 11:11:35 +0200 [thread overview]
Message-ID: <20080926091135.GV2677@kernel.dk> (raw)
In-Reply-To: <20080926094653.1e0a9260@lxorguk.ukuu.org.uk>
On Fri, Sep 26 2008, Alan Cox wrote:
> > What I'm looking is for a more generic/driver independent way of sticking
> > contents of PCI ram onto a disk.
>
> Ermm seriously why not have a userspace task with the PCI RAM mmapped
> and just use write() like normal sane people do ?
To avoid the fault and copy, I would assume.
--
Jens Axboe
next prev parent reply other threads:[~2008-09-26 9:11 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-26 7:29 disk IO directly from PCI memory to block device sectors marty
2008-09-26 8:03 ` Jens Axboe
2008-09-26 8:46 ` Alan Cox
2008-09-26 9:11 ` Jens Axboe [this message]
2008-09-26 10:06 ` Alan Cox
2008-09-26 10:19 ` Jens Axboe
2008-09-26 11:34 ` Jens Axboe
2008-09-26 15:51 ` Leisner, Martin
2008-09-29 13:02 ` Jens Axboe
2008-10-01 19:05 ` Jens Axboe
2008-10-02 16:15 ` Leon Woestenberg
2008-10-02 16:32 ` Jens Axboe
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