From: Goldwyn Rodrigues <rgoldwyn@suse.de>
Date: Wed, 1 Jul 2015 02:19:56 +0000 (+1000)
Subject: md-cluster: fix bitmap sub-offset in bitmap_read_sb
X-Git-Tag: omap-for-v4.3/fixes-merge-window~190^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=33e38ac6887d975fe2635c7fcaefb6d5495cb2e1;p=pandora-kernel.git

md-cluster: fix bitmap sub-offset in bitmap_read_sb

bitmap_read_sb is modifying mddev->bitmap_info.offset. This works for
the first bitmap read. However, when multiple bitmaps need to be opened
by the same node, it ends up corrupting the offset. Fix it by using a
local variable.

Also, bitmap_read_sb is not required in bitmap_copy_from_slot since
it is called in bitmap_create. Remove bitmap_read_sb().

Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: NeilBrown <neilb@suse.com>
---

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