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Diffstat (limited to 'net/core/skbuff.c')
-rw-r--r--net/core/skbuff.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index fb35b62af272..c996c09d095f 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1291,7 +1291,7 @@ struct sk_buff *skb_clone(struct sk_buff *skb, gfp_t gfp_mask)
}
EXPORT_SYMBOL(skb_clone);
-static void skb_headers_offset_update(struct sk_buff *skb, int off)
+void skb_headers_offset_update(struct sk_buff *skb, int off)
{
/* Only adjust this if it actually is csum_start rather than csum */
if (skb->ip_summed == CHECKSUM_PARTIAL)
@@ -1305,6 +1305,7 @@ static void skb_headers_offset_update(struct sk_buff *skb, int off)
skb->inner_network_header += off;
skb->inner_mac_header += off;
}
+EXPORT_SYMBOL(skb_headers_offset_update);
void skb_copy_header(struct sk_buff *new, const struct sk_buff *old)
{
@@ -1715,7 +1716,7 @@ void *skb_push(struct sk_buff *skb, unsigned int len)
{
skb->data -= len;
skb->len += len;
- if (unlikely(skb->data<skb->head))
+ if (unlikely(skb->data < skb->head))
skb_under_panic(skb, len, __builtin_return_address(0));
return skb->data;
}
@@ -2858,23 +2859,27 @@ EXPORT_SYMBOL(skb_queue_purge);
/**
* skb_rbtree_purge - empty a skb rbtree
* @root: root of the rbtree to empty
+ * Return value: the sum of truesizes of all purged skbs.
*
* Delete all buffers on an &sk_buff rbtree. Each buffer is removed from
* the list and one reference dropped. This function does not take
* any lock. Synchronization should be handled by the caller (e.g., TCP
* out-of-order queue is protected by the socket lock).
*/
-void skb_rbtree_purge(struct rb_root *root)
+unsigned int skb_rbtree_purge(struct rb_root *root)
{
struct rb_node *p = rb_first(root);
+ unsigned int sum = 0;
while (p) {
struct sk_buff *skb = rb_entry(p, struct sk_buff, rbnode);
p = rb_next(p);
rb_erase(&skb->rbnode, root);
+ sum += skb->truesize;
kfree_skb(skb);
}
+ return sum;
}
/**
@@ -3816,14 +3821,14 @@ err:
}
EXPORT_SYMBOL_GPL(skb_segment);
-int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
+int skb_gro_receive(struct sk_buff *p, struct sk_buff *skb)
{
struct skb_shared_info *pinfo, *skbinfo = skb_shinfo(skb);
unsigned int offset = skb_gro_offset(skb);
unsigned int headlen = skb_headlen(skb);
unsigned int len = skb_gro_len(skb);
- struct sk_buff *lp, *p = *head;
unsigned int delta_truesize;
+ struct sk_buff *lp;
if (unlikely(p->len + len >= 65536))
return -E2BIG;
@@ -4899,7 +4904,6 @@ EXPORT_SYMBOL(skb_try_coalesce);
*/
void skb_scrub_packet(struct sk_buff *skb, bool xnet)
{
- skb->tstamp = 0;
skb->pkt_type = PACKET_HOST;
skb->skb_iif = 0;
skb->ignore_df = 0;
@@ -4912,8 +4916,8 @@ void skb_scrub_packet(struct sk_buff *skb, bool xnet)
return;
ipvs_reset(skb);
- skb_orphan(skb);
skb->mark = 0;
+ skb->tstamp = 0;
}
EXPORT_SYMBOL_GPL(skb_scrub_packet);