From: Joe Thornber <ejt@redhat.com>
Date: Fri, 27 Jul 2012 14:08:15 +0000 (+0100)
Subject: dm persistent data: introduce dm_bm_set_read_only
X-Git-Tag: v3.6-rc1~56^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=310975573ba40ab526b0d76d28225d8d0999d72b;p=pandora-kernel.git

dm persistent data: introduce dm_bm_set_read_only

Introduce dm_bm_set_read_only to switch the block manager into a
read-only mode.  To be used when dm-thin degrades due to io errors on
the metadata device.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
---

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