On 23/09/2020 02:33, Ming Lei wrote:
Obviously scsi device's queue depth can't be > host's can_queue,
so make it explicitely in scsi_change_queue_depth().
ha, why not can_queue * nr_hw_queues?
Cc: Omar Sandoval <osandov@xxxxxx>
Cc: Kashyap Desai <kashyap.desai@xxxxxxxxxxxx>
Cc: Sumanesh Samanta <sumanesh.samanta@xxxxxxxxxxxx>
Cc: Ewan D. Milne <emilne@xxxxxxxxxx>
Cc: Hannes Reinecke <hare@xxxxxxx>
Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx>
---
drivers/scsi/scsi.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index 24619c3bebd5..cc6ff1ae8c16 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -223,6 +223,8 @@ void scsi_finish_command(struct scsi_cmnd *cmd)
*/
int scsi_change_queue_depth(struct scsi_device *sdev, int depth)
{
+ depth = min_t(int, depth, sdev->host->can_queue);
+
if (depth > 0) {
sdev->queue_depth = depth;
wmb();
