Merge blk_recount_segments into blk_recalc_rq_segments
authorNeilBrown <neilb@suse.de>
Thu, 16 Aug 2007 11:27:52 +0000 (13:27 +0200)
committerJens Axboe <axboe@carl.home.kernel.dk>
Wed, 10 Oct 2007 07:25:56 +0000 (09:25 +0200)
commit9dfa52831e96194b8649613e3131baa2c109f7dc
tree4a3c8b8261c54ba9530232a02ab241a4111d9ce3
parentbbf25010f1a6b761914430f5fca081ec8c7accd1
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>
block/ll_rw_blk.c