diff options
| author | Bart Van Assche <bart.vanassche@wdc.com> | 2017-12-06 01:57:53 +0100 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-01-09 04:10:27 +0100 |
| commit | 2ee4e9ce594b7c4dae5102fa86ce6339b98a4bc8 (patch) | |
| tree | f38b03780902c661d52417abeebd013aa1842406 /drivers/scsi/sd_zbc.c | |
| parent | Merge branch 'nvme-4.16' of git://git.infradead.org/nvme into for-4.16/block (diff) | |
| download | linux-2ee4e9ce594b7c4dae5102fa86ce6339b98a4bc8.tar.xz linux-2ee4e9ce594b7c4dae5102fa86ce6339b98a4bc8.zip | |
scsi: scsi-mq-debugfs: Show more information
Show the request result, request timeout and SCSI command flags. This
information is very helpful when trying to figure out why a queue got
stuck. An example of the information that is exported through debugfs:
$ (cd /sys/kernel/debug/block && find -type f -print0 | xargs -0 grep ago)
./sda/hctx0/busy:ffff8804a4523300 {.op=READ, .cmd_flags=FAILFAST_DEV|FAILFAST_TRANSPORT|FAILFAST_DRIVER|RAHEAD, .rq_flags=MQ_INFLIGHT|DONTPREP|IO_STAT|STATS, .atomic_flags=STARTED, .tag=24, .internal_tag=-1, .cmd=Read(10) 28 00 06 80 1c c8 00 00 08 00, .retries=0, .result = 0x0, .flags=TAGGED|INITIALIZED, .timeout=90.000, allocated 0.010 s ago}
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/sd_zbc.c')
0 files changed, 0 insertions, 0 deletions