From: NeilBrown <neilb@suse.de>
Date: Thu, 22 Dec 2011 23:17:52 +0000 (+1100)
Subject: md/raid5: remove redundant bio initialisations.
X-Git-Tag: v3.3-rc1~164^2~25
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=995c4275a7e14b8752f301e4570831a108ae4303;p=pandora-kernel.git

md/raid5: remove redundant bio initialisations.

We current initialise some fields of a bio when preparing a
stripe_head, and again just before submitting the request.

Remove the duplication by only setting the fields that lower level
devices don't touch in raid5_build_block, and only set the changeable
fields in ops_run_io.

Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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