tree bd399cdabc03d93179c6db9b85e1609af76440a5
parent eb97545d6264b341b06ba7603f52ff6c0b2af6ea
author Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com> 1637561543 +0900
committer Martin K. Petersen <martin.petersen@oracle.com> 1637638071 -0500

scsi: scsi_debug: Zero clear zones at reset write pointer

When a reset is requested the position of the write pointer is updated but
the data in the corresponding zone is not cleared. Instead scsi_debug
returns any data written before the write pointer was reset. This is an
error and prevents using scsi_debug for stale page cache testing of the
BLKRESETZONE ioctl.

Zero written data in the zone when resetting the write pointer.

Link: https://lore.kernel.org/r/20211122061223.298890-1-shinichiro.kawasaki@wdc.com
Fixes: f0d1cf9378bd ("scsi: scsi_debug: Add ZBC zone commands")
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>