linux-kernel - [2/7] SCSI: mpt2sas: _scsih_smart_predicted_fault uses GFP

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Message-Id: <20120103220240.515435411@clark.kroah.org>
Date:	Tue, 03 Jan 2012 14:01:32 -0800
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, Anton Blanchard <anton@...ba.org>,
	James Bottomley <JBottomley@...allels.com>
Subject: [2/7] SCSI: mpt2sas: _scsih_smart_predicted_fault uses GFP_KERNEL in interrupt context

2.6.32-longterm review patch.  If anyone has any objections, please let me know.

------------------

From: Anton Blanchard <anton@...ba.org>

commit f6a290b419a2675c4b77a6b0731cd2a64332365e upstream.

_scsih_smart_predicted_fault is called in an interrupt and therefore
must allocate memory using GFP_ATOMIC.

Signed-off-by: Anton Blanchard <anton@...ba.org>
Signed-off-by: James Bottomley <JBottomley@...allels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/scsi/mpt2sas/mpt2sas_scsih.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -3145,7 +3145,7 @@ _scsih_smart_predicted_fault(struct MPT2
 	/* insert into event log */
 	sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
 	     sizeof(Mpi2EventDataSasDeviceStatusChange_t);
-	event_reply = kzalloc(sz, GFP_KERNEL);
+	event_reply = kzalloc(sz, GFP_ATOMIC);
 	if (!event_reply) {
 		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
 		    ioc->name, __FILE__, __LINE__, __func__);


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