netdev - [PATCH] iscsi: Use GFP_ATOMIC in iscsi_offload

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Date:	Wed, 29 Jul 2009 11:49:52 -0700
From:	"Michael Chan" <mchan@...adcom.com>
To:	"Mike Christie" <michaelc@...wisc.edu>
cc:	"davem@...emloft.net" <davem@...emloft.net>,
	"James.Bottomley@...senPartnership.com" 
	<James.Bottomley@...senPartnership.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
	"open-iscsi@...glegroups.com" <open-iscsi@...glegroups.com>
Subject: [PATCH] iscsi: Use GFP_ATOMIC in iscsi_offload_mesg().

Changing to GFP_ATOMIC because the only caller in cnic/bnx2i may
be calling this function while holding spin_lock.

This problem was discovered by Mike Christie.

Signed-off-by: Michael Chan <mchan@...adcom.com>
---
 drivers/scsi/scsi_transport_iscsi.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 783e33c..b47240c 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -990,7 +990,7 @@ int iscsi_offload_mesg(struct Scsi_Host *shost,
 	struct iscsi_uevent *ev;
 	int len = NLMSG_SPACE(sizeof(*ev) + data_size);
 
-	skb = alloc_skb(len, GFP_NOIO);
+	skb = alloc_skb(len, GFP_ATOMIC);
 	if (!skb) {
 		printk(KERN_ERR "can not deliver iscsi offload message:OOM\n");
 		return -ENOMEM;
@@ -1012,7 +1012,7 @@ int iscsi_offload_mesg(struct Scsi_Host *shost,
 
 	memcpy((char *)ev + sizeof(*ev), data, data_size);
 
-	return iscsi_multicast_skb(skb, ISCSI_NL_GRP_UIP, GFP_NOIO);
+	return iscsi_multicast_skb(skb, ISCSI_NL_GRP_UIP, GFP_ATOMIC);
 }
 EXPORT_SYMBOL_GPL(iscsi_offload_mesg);
 
-- 
1.5.6.GIT




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