[SCSI] scsi_trace: Decode UNMAP bit in WRITE SAME(10)

As of SBC3r26 WRITE SAME(10) supports the UNMAP bit.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/scsi/scsi_trace.c b/drivers/scsi/scsi_trace.c
index b587289cfacb..2bea4f0b684a 100644
--- a/drivers/scsi/scsi_trace.c
+++ b/drivers/scsi/scsi_trace.c
@@ -59,6 +59,10 @@ scsi_trace_rw10(struct trace_seq *p, unsigned char *cdb, int len)
         trace_seq_printf(p, "lba=%llu txlen=%llu protect=%u",
                          (unsigned long long)lba, (unsigned long long)txlen,
                          cdb[1] >> 5);
+
+        if (cdb[0] == WRITE_SAME)
+                trace_seq_printf(p, " unmap=%u", cdb[1] >> 3 & 1);
+
         trace_seq_putc(p, 0);
 
         return ret;