From: NeilBrown <neilb@suse.de>
Date: Thu, 16 Aug 2007 11:27:52 +0000 (+0200)
Subject: Merge blk_recount_segments into blk_recalc_rq_segments
X-Git-Tag: v2.6.24-rc1~1460^2~36
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9dfa52831e96194b8649613e3131baa2c109f7dc;p=pandora-kernel.git

Merge blk_recount_segments into blk_recalc_rq_segments

blk_recalc_rq_segments calls blk_recount_segments on each bio,
then does some extra calculations to handle segments that overlap
two bios.

If we merge the code from blk_recount_segments into
blk_recalc_rq_segments, we can process the whole request one bio_vec
at a time, and not need the messy cross-bio calculations.

Then blk_recount_segments can be implemented by calling
blk_recalc_rq_segments, passing it a simple on-stack request which
stores just the bio.

Signed-off-by: Neil Brown <neilb@suse.de>

diff .prev/block/ll_rw_blk.c ./block/ll_rw_blk.c
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---

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