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>

diff --git a/drivers/scsi/xen-scsifront.c b/drivers/scsi/xen-scsifront.c
index 0aceb70e1d83f6f5931fbba92c2a6a76ad5b3227..7e88659bf5af9ba2ff4ad5caefde0e504673959f 100644 (file)
--- a/drivers/scsi/xen-scsifront.c
+++ b/drivers/scsi/xen-scsifront.c
@@ -359,7 +359,7 @@ static int map_data_for_request(struct vscsifrnt_info *info,
                }
                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;
        }