From: Hannes Reinecke <hare@suse.de>
Date: Thu, 25 Apr 2013 06:10:00 +0000 (+0200)
Subject: [SCSI] Handle MLQUEUE busy response in scsi_send_eh_cmnd
X-Git-Tag: v3.10-rc1~3^2~1^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fc73648a5026dcf228aadc6ab8ca4b868d91c159;p=pandora-kernel.git

[SCSI] Handle MLQUEUE busy response in scsi_send_eh_cmnd

scsi_send_eh_cmnd() is calling queuecommand() directly, so
it needs to check the return value here.
The only valid return codes for queuecommand() are 'busy'
states, so we need to wait for a bit to allow the LLDD
to recover.

Based on an earlier patch from Wen Xiong.

[jejb: fix confusion between msec and jiffies values and other issues]
[bvanassche: correct stall_for interval]
Cc: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Cc: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---

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