From: Mike Snitzer <snitzer@redhat.com>
Date: Thu, 23 Jul 2009 19:30:42 +0000 (+0100)
Subject: dm table: pass correct dev area size to device_area_is_valid
X-Git-Tag: v2.6.31-rc5~91^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5dea271b6d87bd1d79a59c1d5baac2596a841c37;p=pandora-kernel.git

dm table: pass correct dev area size to device_area_is_valid

Incorrect device area lengths are being passed to device_area_is_valid().

The regression appeared in 2.6.31-rc1 through commit
754c5fc7ebb417b23601a6222a6005cc2e7f2913.

With the dm-stripe target, the size of the target (ti->len) was used
instead of the stripe_width (ti->len/#stripes).  An example of a
consequent incorrect error message is:

  device-mapper: table: 254:0: sdb too small for target

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