[PATCH v6 net-next 10/11] skbuff: allow to use NAPI cache from __napi_alloc_skb()
From: Alexander Lobakin <hidden>
Date: 2021-02-13 14:16:18
Also in:
lkml
Subsystem:
networking [general], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
{,__}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 <redacted>
---
net/core/skbuff.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index a80581eed7fc..875e1a453f7e 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c@@ -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;
--
2.30.1