From: Mike Anderson <andmike@linux.vnet.ibm.com>
Date: Thu, 10 Dec 2009 23:52:20 +0000 (+0000)
Subject: dm ioctl: forbid messages to devices being deleted
X-Git-Tag: v2.6.33-rc1~75^2~28
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c50abeb38026ea721a812cf8a9b2fac5d3b7684b;p=pandora-kernel.git

dm ioctl: forbid messages to devices being deleted

Once we begin deleting a device, prevent any further messages being sent
to targets of its table (to avoid races).

Signed-off-by: Mike Anderson <andmike@linux.vnet.ibm.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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