swiotlb: Don't DoS us with 'swiotlb buffer is full' (v2)

There is no need for that so lets use ratelimiting. Also add some extra information to be helpful.

Konrad Rzeszutek Wilk committed 12 years ago

Commit 0cb637b1 parent 91fec0f1 file · +2 −1Browse files

Unified · Split

@@ -505,7 +505,8 @@ phys_addr_t swiotlb_tbl_map_single(struct device *hwdev, · 504 unmodified lines
505	505
506	506	not_found:
507	507	spin_unlock_irqrestore(&io_tlb_lock, flags);
508		− dev_warn(hwdev, "swiotlb buffer is full\n");
	508	+ if (printk_ratelimit())
	509	+ dev_warn(hwdev, "swiotlb buffer is full (sz: %zd bytes)\n", size);
509	510	return SWIOTLB_MAP_ERROR;
510	511	found:
511	512	spin_unlock_irqrestore(&io_tlb_lock, flags);