From cad8cf20a65f3d6cd70719bd0fec2d54546b12ef Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Wed, 30 Aug 2017 16:58:41 -0700 Subject: [PATCH] scsi: Show .retries and .jiffies_at_alloc in debugfs Make these two member variables available in debugfs such that their value can be verified by kernel developers. An example of the new output: ffff8804a513d480 {.op=READ, .cmd_flags=META|PRIO, .rq_flags=MQ_INFLIGHT|DONTPREP|IO_STAT|STATS, .atomic_flags=STARTED, .tag=17, .internal_tag=-1, .cmd=Read(10) 28 00 08 81 32 38 00 00 08 00, .retries=0, allocated 0.010 s ago} Signed-off-by: Bart Van Assche Cc: Hannes Reinecke Cc: Christoph Hellwig Cc: Johannes Thumshirn Reviewed-by: Johannes Thumshirn Reviewed-by: Christoph Hellwig Signed-off-by: Martin K. Petersen --- drivers/scsi/scsi_debugfs.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/scsi_debugfs.c b/drivers/scsi/scsi_debugfs.c index a97c9507103d..5e9755008aed 100644 --- a/drivers/scsi/scsi_debugfs.c +++ b/drivers/scsi/scsi_debugfs.c @@ -6,8 +6,10 @@ void scsi_show_rq(struct seq_file *m, struct request *rq) { struct scsi_cmnd *cmd = container_of(scsi_req(rq), typeof(*cmd), req); + int msecs = jiffies_to_msecs(jiffies - cmd->jiffies_at_alloc); char buf[80]; __scsi_format_command(buf, sizeof(buf), cmd->cmnd, cmd->cmd_len); - seq_printf(m, ", .cmd=%s", buf); + seq_printf(m, ", .cmd=%s, .retries=%d, allocated %d.%03d s ago", buf, + cmd->retries, msecs / 1000, msecs % 1000); } -- 2.20.1