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

menglong8.dong
2022-06-17T10:06:18Z

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