From f565913ef8a8d0cfa46a1faaf8340cc357a46f3a Mon Sep 17 00:00:00 2001
From: Jens Axboe <jens.axboe@oracle.com>
Date: Fri, 21 Sep 2007 10:44:19 +0200
Subject: [PATCH] block: convert to using sg helpers

Convert the main rq mapper (blk_rq_map_sg()) to the sg helper setup.

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