From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Thu, 26 Jun 2008 17:39:23 +0000 (+0200)
Subject: block: add bounce support to blk_rq_map_user_iov
X-Git-Tag: v2.6.27-rc1~1114^2~17
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=07359fc61bb8ed786f96a1c24cca6f94dd17e329;p=pandora-kernel.git

block: add bounce support to blk_rq_map_user_iov

blk_rq_map_user_iov can't handle the bounce buffer (it means that the
bio_map_user_iov path doesn't work with a LLD that needs GFP_DMA).

This patch fixes blk_rq_map_user_iov to support the bounce buffer.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---

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