[PATCH] net: skbuff: allocate the fclone in the current NUMA node

Huang Shijie
2024-02-20T02:18:36Z

The current code passes NUMA_NO_NODE to __alloc_skb(), we found
it may creates fclone SKB in remote NUMA node.

So use numa_node_id() to limit the allocation to current NUMA node.

Signed-off-by: Huang Shijie <shijie@os.amperecomputing.com>
---
include/linux/skbuff.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 2dde34c29203..ebc42b2604ad 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1343,7 +1343,7 @@ static inline bool skb_fclone_busy(const struct sock *sk,
static inline struct sk_buff *alloc_skb_fclone(unsigned int size,
gfp_t priority)
{
- return __alloc_skb(size, priority, SKB_ALLOC_FCLONE, NUMA_NO_NODE);
+ return __alloc_skb(size, priority, SKB_ALLOC_FCLONE, numa_node_id());
}

struct sk_buff *skb_morph(struct sk_buff *dst, struct sk_buff *src);
--
2.40.1