From: Dave Carroll <[email protected]> During slave_alloc, for logical volumes include no_write_same into the scsi_device structure. This will insure that WRITE_SAME will not be used for LD's.
Reviewed-by: Ajish Koshy <[email protected]> Reviewed-by: Murthy Bhat <[email protected]> Reviewed-by: Mahesh Rajashekhara <[email protected]> Reviewed-by: Justin Lindley <[email protected]> Reviewed-by: Scott Benesh <[email protected]> Reviewed-by: Scott Teel <[email protected]> Reviewed-by: Kevin Barnett <[email protected]> Signed-off-by: Dave Carroll <[email protected]> Signed-off-by: Don Brace <[email protected]> --- drivers/scsi/smartpqi/smartpqi_init.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index db95b1cb6889..8e68dba1c789 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -176,6 +176,11 @@ static inline void pqi_scsi_done(struct scsi_cmnd *scmd) scmd->scsi_done(scmd); } +static inline void pqi_disable_write_same(struct scsi_device *sdev) +{ + sdev->no_write_same = 1; +} + static inline bool pqi_scsi3addr_equal(u8 *scsi3addr1, u8 *scsi3addr2) { return memcmp(scsi3addr1, scsi3addr2, 8) == 0; @@ -5326,6 +5331,8 @@ static int pqi_slave_alloc(struct scsi_device *sdev) scsi_change_queue_depth(sdev, device->advertised_queue_depth); } + if (pqi_is_logical_device(device)) + pqi_disable_write_same(sdev); } spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
