Re: Worrisome IDE PIO transfers...

From: Christophe Saout (christophe_at_saout.de)
Date: 03/01/04

  • Next message: Micha Feigin: "Re: [Swsusp-devel] Re: Dropping CONFIG_PM_DISK?" 
    To: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Date:	Mon, 01 Mar 2004 14:23:02 +0100

    Am Mo, den 01.03.2004 schrieb Bartlomiej Zolnierkiewicz um 01:47:

    > http://www.kernel.org/pub/linux/kernel/people/bart/dm-byteswap-2.6.4-rc1.patch
    >
    > Guess what's this? :)

    The thieves... they've stolen my precioussss. ;)

    > It is simply a stripped down dm-crypt.c, so all credits go to Christophe.
    > I have tested it quickly with loop device and it seems to work.

    Yes, it's not that complicated. Looks good.
    BTW: You don't need the km_types voodoo as the conversion routine is
    never called from a softirq context and you are allowed (but should try
    to avoid it) to sleep. You could add a conditional reschedule after
    kunmapping the buffers to keep the latency low on non-preempt kernels.

    BTW: I've got some cleanups and a small fix in Andrew's latest tree
    (using a #define for the log prefix and I bvec array thingy).

    -
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  • Next message: Micha Feigin: "Re: [Swsusp-devel] Re: Dropping CONFIG_PM_DISK?"

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