From: Stefan Haberland <stefan.haberland@de.ibm.com>
Date: Thu, 2 Apr 2015 10:52:41 +0000 (+0200)
Subject: s390/dasd: fix unresumed device after suspend/resume
X-Git-Tag: omap-for-v4.1/fixes-rc1~85^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a3147a7bc266df39b4f471ee7c4c9adcb56d29a6;p=pandora-kernel.git

s390/dasd: fix unresumed device after suspend/resume

The DASD device driver only has a limited amount of memory to build
I/O requests.
This memory was used by blocklayer requests leading to an inability
to build needed internal requests to resume the device.
Fix by preventing the DASD driver to fetch requests for a stopped
device.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Reference-ID: RQM 2520
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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