From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Thu, 18 Dec 2008 05:49:36 +0000 (+0900)
Subject: [SCSI] block: fix bio_add_page misuse with rq_map_data
X-Git-Tag: v2.6.29-rc1~41^2~36
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e623ddb4e940b266adc77ba1cc28a3554aa90e79;p=pandora-kernel.git

[SCSI] block: fix bio_add_page misuse with rq_map_data

This fixes bio_add_page misuse in bio_copy_user_iov with rq_map_data,
which only sg uses now.

rq_map_data carries page frames for bio_add_pc_page. bio_copy_user_iov
uses bio_add_pc_page with a larger size than PAGE_SIZE. It's clearly
wrong.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---

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