st must check phys and hw segments limits now

PATCH In review Mike Christie 1 participant 1 message Nov 8, 2005

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SCSI SCSI tape driver

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Mike Christie

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2005-11-08 10:07 UTC #0 lore raw

PATCH 8/10 st must check phys and hw segments limits now

We have two segments limitations. Previously st made its own scatterlists that got sent to LLDs so it could ignore max_phys_segments.

Signed-off-by Mike Christie <[email protected]>

drivers/scsi/st.c +2 -1

index 2d8592d..5e61e48 100644
@@ -3889,7 +3889,8 @@ static int st_probe(struct device *dev)
 		return -ENODEV;
 	}
 
-	i = SDp->host->sg_tablesize;
+	i = min(SDp->request_queue->max_hw_segments,
+		SDp->request_queue->max_phys_segments);
 	if (st_max_sg_segs < i)
 		i = st_max_sg_segs;
 	buffer = new_tape_buffer(1, (SDp->host)->unchecked_isa_dma, i);