From: Tejun Heo <htejun@gmail.com>
Date: Tue, 19 Feb 2008 10:36:53 +0000 (+0100)
Subject: block: implement request_queue->dma_drain_needed
X-Git-Tag: v2.6.25-rc3~122^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2fb98e8414c42cb14698833aac640b143b9ade4f;p=pandora-kernel.git

block: implement request_queue->dma_drain_needed

Draining shouldn't be done for commands where overflow may indicate
data integrity issues.  Add dma_drain_needed callback to
request_queue.  Drain buffer is appened iff this function returns
non-zero.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---

Reading git-diff-tree failed