linux-kernel - [RFC v2 5/6] mptsas: use async probe

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Date:	Thu,  4 Sep 2014 23:37:26 -0700
From:	"Luis R. Rodriguez" <mcgrof@...not-panic.com>
To:	gregkh@...uxfoundation.org, dmitry.torokhov@...il.com,
	falcon@...zu.com, tiwai@...e.de, tj@...nel.org,
	arjan@...ux.intel.com
Cc:	linux-kernel@...r.kernel.org, oleg@...hat.com, hare@...e.com,
	akpm@...ux-foundation.org, penguin-kernel@...ove.sakura.ne.jp,
	joseph.salisbury@...onical.com, bpoirier@...e.de,
	santosh@...lsio.com, "Luis R. Rodriguez" <mcgrof@...e.com>,
	Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>,
	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>,
	Tim Gardner <tim.gardner@...onical.com>,
	Pierre Fersing <pierre-fersing@...rref.org>,
	Nagalakshmi Nandigama <nagalakshmi.nandigama@...gotech.com>,
	Praveen Krishnamoorthy <praveen.krishnamoorthy@...gotech.com>,
	Sreekanth Reddy <sreekanth.reddy@...gotech.com>,
	Abhijit Mahajan <abhijit.mahajan@...gotech.com>,
	Hariprasad S <hariprasad@...lsio.com>,
	Casey Leedom <leedom@...lsio.com>,
	MPT-FusionLinux.pdl@...gotech.com, linux-scsi@...r.kernel.org,
	netdev@...r.kernel.org
Subject: [RFC v2 5/6] mptsas: use async probe

From: "Luis R. Rodriguez" <mcgrof@...e.com>

Its reported that mptsas can at times take over 30 seconds
to recognize SCSI storage devices [0], this is done on the
driver's probe path. Use the the new asynch probe to
circumvent systemd from killing this driver.

[0] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1276705

Cc: Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
Cc: Joseph Salisbury <joseph.salisbury@...onical.com>
Cc: One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>
Cc: Tim Gardner <tim.gardner@...onical.com>
Cc: Pierre Fersing <pierre-fersing@...rref.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Oleg Nesterov <oleg@...hat.com>
Cc: Benjamin Poirier <bpoirier@...e.de>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Nagalakshmi Nandigama <nagalakshmi.nandigama@...gotech.com>
Cc: Praveen Krishnamoorthy <praveen.krishnamoorthy@...gotech.com>
Cc: Sreekanth Reddy <sreekanth.reddy@...gotech.com>
Cc: Abhijit Mahajan <abhijit.mahajan@...gotech.com>
Cc: Hariprasad S <hariprasad@...lsio.com>
Cc: Santosh Rastapur <santosh@...lsio.com>
Cc: Casey Leedom <leedom@...lsio.com>
Cc: MPT-FusionLinux.pdl@...gotech.com
Cc: linux-scsi@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Cc: netdev@...r.kernel.org
Signed-off-by: Luis R. Rodriguez <mcgrof@...e.com>
---
 drivers/message/fusion/mptsas.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index 0707fa2..6dfee95 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -5385,6 +5385,7 @@ static struct pci_driver mptsas_driver = {
 	.suspend	= mptscsih_suspend,
 	.resume		= mptscsih_resume,
 #endif
+	.driver.async_probe = true,
 };
 
 static int __init
-- 
2.0.3

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