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    SubjectRe: 2.6.23-rc8-mm2: OOPS in mmc on boot
    On Thu, 4 Oct 2007 12:38:05 +0200
    Jens Axboe <jens.axboe@oracle.com> wrote:

    > On Thu, Oct 04 2007, Pierre Ossman wrote:
    > >
    > > Is that a yes or a no? You said that the ->page field was involved
    > > in
    >
    > It's a conditional yes, re-read it :-)
    >

    I didn't get the memo about what chained sg entries entail.

    > > list chaining, so does or doesn't it have to be initialized before a
    > > call to sg_init_one()?
    >
    > That's not the problem. It has to be initialized before calling
    > blk_rq_map_sg(). sg_init_one() will zero the entire sg entry, and that
    > breaks if that particular sg entry is part of a larger sg table AND
    > that sg entry happens to be the chain element.
    >

    Ok, then it shouldn't affect my world at least.

    Rgds
    Pierre

    PS. Did someone forget to do a review of all blk_rq_map_sg() callers
    before committing the chained list stuff? ;)
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