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authorJason Xing <kernelxing@tencent.com>2024-04-18 09:36:03 +0200
committerDavid S. Miller <davem@davemloft.net>2024-04-19 12:38:03 +0200
commitf7b60cce847036f4a639d44c675553a564d8e876 (patch)
tree48669426a813531a30360209f49f26de7e5e5f56 /net/core/dev.c
parentnet: rps: protect filter locklessly (diff)
downloadlinux-f7b60cce847036f4a639d44c675553a564d8e876.tar.xz
linux-f7b60cce847036f4a639d44c675553a564d8e876.zip
net: rps: locklessly access rflow->cpu
This is the last member in struct rps_dev_flow which should be protected locklessly. So finish it. Signed-off-by: Jason Xing <kernelxing@tencent.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/dev.c')
-rw-r--r--net/core/dev.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 182fce2537d4..8bdc59074b29 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4539,7 +4539,7 @@ set_rps_cpu(struct net_device *dev, struct sk_buff *skb,
rps_input_queue_tail_save(&rflow->last_qtail, head);
}
- rflow->cpu = next_cpu;
+ WRITE_ONCE(rflow->cpu, next_cpu);
return rflow;
}