457aa487be6a7a21afd715
author Jens Axboe <jens.axboe@oracle.com> 1178694177 +0200
committer Jens Axboe <jens.axboe@oracle.com> 1192525630 +0200

Add sg helpers for iterating over a scatterlist table

First step to being able to change the scatterlist setup without
having to modify drivers (a lot :-)

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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