[PATCH net-next v4 2/8] net: skb: introduce __skb_queue_purge_reason()

[menglong8.dong@gmail.com]

From: Menglong Dong <imagedong@tencent.com>

Introduce __skb_queue_purge_reason() to empty a skb list with drop
reason and make __skb_queue_purge() an inline call to it.

Reviewed-by: Jiang Biao <benbjiang@tencent.com>
Reviewed-by: Hao Peng <flyingpeng@tencent.com>
Signed-off-by: Menglong Dong <imagedong@tencent.com>
---
 include/linux/skbuff.h | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 82edf0359ab3..8d5445c3d3e7 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -3020,18 +3020,24 @@ static inline int skb_orphan_frags_rx(struct sk_buff *skb, gfp_t gfp_mask)
 }
 
 /**
- *	__skb_queue_purge - empty a list
+ *	__skb_queue_purge_reason - empty a list with specific drop reason
  *	@list: list to empty
+ *	@reason: drop reason
  *
  *	Delete all buffers on an &sk_buff list. Each buffer is removed from
  *	the list and one reference dropped. This function does not take the
  *	list lock and the caller must hold the relevant locks to use it.
  */
-static inline void __skb_queue_purge(struct sk_buff_head *list)
+static inline void __skb_queue_purge_reason(struct sk_buff_head *list,
+					    enum skb_drop_reason reason)
 {
 	struct sk_buff *skb;
 	while ((skb = __skb_dequeue(list)) != NULL)
-		kfree_skb(skb);
+		kfree_skb_reason(skb, reason);
+}
+static inline void __skb_queue_purge(struct sk_buff_head *list)
+{
+	__skb_queue_purge_reason(list, SKB_DROP_REASON_NOT_SPECIFIED);
 }
 void skb_queue_purge(struct sk_buff_head *list);
 
-- 
2.36.1