From: Boaz Harrosh <bharrosh@panasas.com>
Date: Tue, 24 Mar 2009 11:35:07 +0000 (+0100)
Subject: block: WARN in __blk_put_request() for potential bio leak
X-Git-Tag: v2.6.30-rc1~660^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1cd96c242a829d52f7a5ae98f554ca9775429685;p=pandora-kernel.git

block: WARN in __blk_put_request() for potential bio leak

Put a WARN_ON in __blk_put_request if it is about to
leak bio(s). This is a serious bug that can happen in error
handling code paths.

For this to work I have fixed a couple of places in block/ where
request->bio != NULL ownership was not honored. And a small cleanup
at sg_io() while at it.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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