net: Always allocate at least 16 skb frags regardless of page size

[karo-tx-linux.git] / include / linux / skbuff.h

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 24cfa626931ee56d45d8c6e0cdfa8b0474577425..239083bfea13d642c2c11d30398cc0365071b55c 100644 (file)
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -122,8 +122,14 @@ struct sk_buff_head {
 
 struct sk_buff;
 
-/* To allow 64K frame to be packed as single skb without frag_list */
+/* To allow 64K frame to be packed as single skb without frag_list. Since
+ * GRO uses frags we allocate at least 16 regardless of page size.
+ */
+#if (65536/PAGE_SIZE + 2) < 16
+#define MAX_SKB_FRAGS 16
+#else
 #define MAX_SKB_FRAGS (65536/PAGE_SIZE + 2)
+#endif
 
 typedef struct skb_frag_struct skb_frag_t;