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

[linux-2.6-microblaze.git] / lib / swiotlb.c

diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index e4399fa..4634ac9 100644 (file)
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -505,7 +505,8 @@ phys_addr_t swiotlb_tbl_map_single(struct device *hwdev,
 
 not_found:
        spin_unlock_irqrestore(&io_tlb_lock, flags);
-       dev_warn(hwdev, "swiotlb buffer is full\n");
+       if (printk_ratelimit())
+               dev_warn(hwdev, "swiotlb buffer is full (sz: %zd bytes)\n", size);
        return SWIOTLB_MAP_ERROR;
 found:
        spin_unlock_irqrestore(&io_tlb_lock, flags);