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skbuff: allow to use NAPI cache from __napi_alloc_skb() 

{,__}napi_alloc_skb() is mostly used either for optional non-linear
receive methods (usually controlled via Ethtool private flags and off
by default) and/or for Rx copybreaks.
Use __napi_build_skb() here for obtaining skbuff_heads from NAPI cache
instead of inplace allocations. This includes both kmalloc and page
frag paths.

Signed-off-by: Alexander Lobakin <alobakin@pm.me>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexander Lobakin 2021-02-13 14:12:49 +00:00 committed by David S. Miller
parent d13612b58e
commit cfb8ec6595
1 changed files with 3 additions and 2 deletions
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5
net/core/skbuff.c
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@ -562,7 +562,8 @@ struct sk_buff *__napi_alloc_skb(struct napi_struct *napi, unsigned int len,
if (len <= SKB_WITH_OVERHEAD(1024) ||
len > SKB_WITH_OVERHEAD(PAGE_SIZE) ||
(gfp_mask & (__GFP_DIRECT_RECLAIM | GFP_DMA))) {
skb = __alloc_skb(len, gfp_mask, SKB_ALLOC_RX, NUMA_NO_NODE);
skb = __alloc_skb(len, gfp_mask, SKB_ALLOC_RX | SKB_ALLOC_NAPI,
NUMA_NO_NODE);
if (!skb)
goto skb_fail;
goto skb_success;
@ -579,7 +580,7 @@ struct sk_buff *__napi_alloc_skb(struct napi_struct *napi, unsigned int len,
if (unlikely(!data))
return NULL;
skb = __build_skb(data, len);
skb = __napi_build_skb(data, len);
if (unlikely(!skb)) {
skb_free_frag(data);
return NULL;