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    SubjectRe: [linux-usb-devel] Re: USB hangs
    On Sun, Jan 11, 2004 at 08:11:58PM -0800, David Brownell wrote:
    >
    > >>> Plus I'd
    > >>>argue PF_MEMALLOC is a better solution anyway.
    > >>
    > >>It certainly seems like a more comprehensive fix for that
    > >>particular class of problems! :)
    > >
    > >
    > >Is it really more comprehensive? As I see it, it will only affect code
    > >executed in the context of the usb-storage thread. But, what about code
    > >which is invoked in tasklets or other contexts?
    >
    > Isn't it true that only that thread is allowed to
    > submit usb-storage i/o requests?

    That's very true.

    What I'm concerned about is the downstream effects of a usb_submit_urb() or
    the corresponding scatter-gather equivalents.

    Matt

    --
    Matthew Dharm Home: mdharm-usb@one-eyed-alien.net
    Maintainer, Linux USB Mass Storage Driver

    You should try to see the techs say "three piece suit".
    -- The Chief
    User Friendly, 11/23/1997
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