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authorEric Dumazet <edumazet@google.com>2014-09-17 04:49:49 -0700
committerDavid S. Miller <davem@davemloft.net>2014-09-19 16:25:23 -0400
commit2e4e44107176d552f8bb1bb76053e850e3809841 (patch)
treeb5cbc8a9e0a02bd3973e918e67493b9d81ffae4a /include
parentcb93471acc42b71fa3f2e46805020f2b323db64f (diff)
net: add alloc_skb_with_frags() helper
Extract from sock_alloc_send_pskb() code building skb with frags, so that we can reuse this in other contexts. Intent is to use it from tcp_send_rcvq(), tcp_collapse(), ... We also want to replace some skb_linearize() calls to a more reliable strategy in pathological cases where we need to reduce number of frags. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/linux/skbuff.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 756e3d057e84..f1bfa3781c75 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -769,6 +769,12 @@ static inline struct sk_buff *alloc_skb(unsigned int size,
return __alloc_skb(size, priority, 0, NUMA_NO_NODE);
}
+struct sk_buff *alloc_skb_with_frags(unsigned long header_len,
+ unsigned long data_len,
+ int max_page_order,
+ int *errcode,
+ gfp_t gfp_mask);
+
static inline struct sk_buff *alloc_skb_fclone(unsigned int size,
gfp_t priority)
{