From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Wed, 13 Aug 2014 18:53:42 +0000 (-0500)
Subject: dm mpath: stop queueing IO when no valid paths exist
X-Git-Tag: omap-for-v3.19/prcm-cleanup~48^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1f271972478d84dd9e4d6dd82f414d70ed9e78ce;p=pandora-kernel.git

dm mpath: stop queueing IO when no valid paths exist

'queue_io' is set so that IO is queued while paths are being
initialized.  Clear queue_io in __choose_pgpath if there are no valid
paths, since there are obviously no paths that can be initialized.
Otherwise IOs to the device will back up.

Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---

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