1 files changed, 26 insertions, 25 deletions

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index ce357d986251..e27104039a39 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -485,6 +485,30 @@ void consume_skb(struct sk_buff *skb)
 EXPORT_SYMBOL(consume_skb);
 
 /**
+ *      skb_recycle - clean up an skb for reuse
+ *      @skb: buffer
+ *
+ *      Recycles the skb to be reused as a receive buffer. This
+ *      function does any necessary reference count dropping, and
+ *      cleans up the skbuff as if it just came from __alloc_skb().
+ */
+void skb_recycle(struct sk_buff *skb)
+{
+        struct skb_shared_info *shinfo;
+
+        skb_release_head_state(skb);
+
+        shinfo = skb_shinfo(skb);
+        memset(shinfo, 0, offsetof(struct skb_shared_info, dataref));
+        atomic_set(&shinfo->dataref, 1);
+
+        memset(skb, 0, offsetof(struct sk_buff, tail));
+        skb->data = skb->head + NET_SKB_PAD;
+        skb_reset_tail_pointer(skb);
+}
+EXPORT_SYMBOL(skb_recycle);
+
+/**
  *      skb_recycle_check - check if skb can be reused for receive
  *      @skb: buffer
  *      @skb_size: minimum receive buffer size
@@ -498,33 +522,10 @@ EXPORT_SYMBOL(consume_skb);
  */
 bool skb_recycle_check(struct sk_buff *skb, int skb_size)
 {
-        struct skb_shared_info *shinfo;
-
-        if (irqs_disabled())
-                return false;
-
-        if (skb_shinfo(skb)->tx_flags & SKBTX_DEV_ZEROCOPY)
-                return false;
-
-        if (skb_is_nonlinear(skb) || skb->fclone != SKB_FCLONE_UNAVAILABLE)
-                return false;
-
-        skb_size = SKB_DATA_ALIGN(skb_size + NET_SKB_PAD);
-        if (skb_end_pointer(skb) - skb->head < skb_size)
-                return false;
-
-        if (skb_shared(skb) || skb_cloned(skb))
+        if (!skb_is_recycleable(skb, skb_size))
                 return false;
 
-        skb_release_head_state(skb);
-
-        shinfo = skb_shinfo(skb);
-        memset(shinfo, 0, offsetof(struct skb_shared_info, dataref));
-        atomic_set(&shinfo->dataref, 1);
-
-        memset(skb, 0, offsetof(struct sk_buff, tail));
-        skb->data = skb->head + NET_SKB_PAD;
-        skb_reset_tail_pointer(skb);
+        skb_recycle(skb);
 
         return true;
 }