commit d9b1e6374b3a9b88774e30d0c6bf6e394cd10b76
author Dan Carpenter <dan.carpenter@oracle.com> Mon Sep 08 14:15:42 2014 +0300
committer Stefano Stabellini <stefano.stabellini@eu.citrix.com> Tue Sep 23 13:36:19 2014 +0000
tree 759df9442e7f40a8e804ff5cb5f06b6ba52df070
parent 15d036094b75e63a3817ec4f836959d38cecb1e6

xen-scsifront: use GFP_ATOMIC under spin_lock

This function is only called with a spin_lock held and IRQs disabled.
The allocation is not allowed to sleep and NOIO is not sufficient, it
has to be ATOMIC.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>

drivers/scsi/xen-scsifront.c

diff --git a/drivers/scsi/xen-scsifront.c b/drivers/scsi/xen-scsifront.c
index 0aceb70..7e88659 100644
--- a/drivers/scsi/xen-scsifront.c
+++ b/drivers/scsi/xen-scsifront.c
@@ -359,7 +359,7 @@
 		}
 		seg_grants = vscsiif_grants_sg(data_grants);
 		shadow->sg = kcalloc(data_grants,
-			sizeof(struct scsiif_request_segment), GFP_NOIO);
+			sizeof(struct scsiif_request_segment), GFP_ATOMIC);
 		if (!shadow->sg)
 			return -ENOMEM;
 	}