From: Ming Lei <tom.leiming@gmail.com>
Date: Tue, 11 Nov 2014 16:15:41 +0000 (+0800)
Subject: block: blk-merge: fix blk_recount_segments()
X-Git-Tag: omap-for-v3.19/fixes-for-merge-window~114^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7f60dcaaf91e911002007c7ae885ff6ef0f36c0d;p=pandora-kernel.git

block: blk-merge: fix blk_recount_segments()

For cloned bio, bio->bi_vcnt can't be used at all, and we
have resort to bio_segments() to figure out how many
segment there are in the bio.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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