[6/15] scsi xcopy: suppress error messages
diff mbox

Message ID alpine.LRH.2.02.1512101211440.25927@file01.intranet.prod.int.rdu2.redhat.com
State New
Headers show

Commit Message

Mikulas Patocka Dec. 10, 2015, 5:30 p.m. UTC
This patch suppresses error messages when copying between two arrays that
support XCOPY each, but that cannot copy data between each other.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

---
 drivers/scsi/sd.c |   14 ++++++++++++++
 1 file changed, 14 insertions(+)


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Patch
diff mbox

Index: linux-4.4-rc4/drivers/scsi/sd.c
===================================================================
--- linux-4.4-rc4.orig/drivers/scsi/sd.c	2015-12-07 16:58:48.000000000 +0100
+++ linux-4.4-rc4/drivers/scsi/sd.c	2015-12-07 16:59:09.000000000 +0100
@@ -1995,6 +1995,20 @@  static int sd_done(struct scsi_cmnd *SCp
 					req->cmd_flags |= REQ_QUIET;
 				}
 			}
+		} else if (sshdr.asc == 0x26) {
+			switch (op) {
+			/*
+			 * Copying between two arrays that support XCOPY, but
+			 * cannot access each other.
+			 */
+			case EXTENDED_COPY:
+				if ((SCpnt->cmnd[1] & 0x1f) == 0) {
+					good_bytes = 0;
+					req->__data_len = blk_rq_bytes(req);
+					req->cmd_flags |= REQ_QUIET;
+				}
+				break;
+			}
 		}
 		break;
 	default: