[PATCH 2/9] scsi: log request tag for scmd_printk()

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The request tag provides a concise identification of a SCSI
command, so we should be printing that out for scmd_printk().

Suggested-by: Christoph Hellwig <hch@xxxxxx>
Tested-by: Robert Elliott <elliott@xxxxxx>
Reviewed-by: Robert Elliott <elliott@xxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Hannes Reinecke <hare@xxxxxxx>
---
 drivers/scsi/scsi_logging.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/scsi/scsi_logging.c b/drivers/scsi/scsi_logging.c
index 09d65de..4d20132 100644
--- a/drivers/scsi/scsi_logging.c
+++ b/drivers/scsi/scsi_logging.c
@@ -114,6 +114,10 @@ int scmd_printk(const char *level, const struct scsi_cmnd *scmd,
 	if (disk)
 		off += scnprintf(logbuf + off, logbuf_len - off,
 				 "[%s] ", disk->disk_name);
+
+	if (scmd->request->tag >= 0)
+		off += scnprintf(logbuf + off, logbuf_len - off,
+				 "tag#%d ", scmd->request->tag);
 	va_start(args, fmt);
 	off += vscnprintf(logbuf + off, logbuf_len - off, fmt, args);
 	va_end(args);
-- 
1.8.4.5

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