diff options
| author | Cong Wang <cong.wang@bytedance.com> | 2024-12-10 02:20:38 +0100 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2024-12-20 17:59:47 +0100 |
| commit | 54f89b3178d5448dd4457afbb98fc1ab99090a65 (patch) | |
| tree | db313b7069a0cf84afe847dfdb5dccd49b98da70 /include/net | |
| parent | selftests/bpf: Fix compilation error in get_uprobe_offset() (diff) | |
| download | linux-54f89b3178d5448dd4457afbb98fc1ab99090a65.tar.xz linux-54f89b3178d5448dd4457afbb98fc1ab99090a65.zip | |
tcp_bpf: Charge receive socket buffer in bpf_tcp_ingress()
When bpf_tcp_ingress() is called, the skmsg is being redirected to the
ingress of the destination socket. Therefore, we should charge its
receive socket buffer, instead of sending socket buffer.
Because sk_rmem_schedule() tests pfmemalloc of skb, we need to
introduce a wrapper and call it for skmsg.
Fixes: 604326b41a6f ("bpf, sockmap: convert to generic sk_msg interface")
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20241210012039.1669389-2-zijianzhang@bytedance.com
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/sock.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index 7464e9f9f47c..c383126f691d 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1527,7 +1527,7 @@ static inline bool sk_wmem_schedule(struct sock *sk, int size) } static inline bool -sk_rmem_schedule(struct sock *sk, struct sk_buff *skb, int size) +__sk_rmem_schedule(struct sock *sk, int size, bool pfmemalloc) { int delta; @@ -1535,7 +1535,13 @@ sk_rmem_schedule(struct sock *sk, struct sk_buff *skb, int size) return true; delta = size - sk->sk_forward_alloc; return delta <= 0 || __sk_mem_schedule(sk, delta, SK_MEM_RECV) || - skb_pfmemalloc(skb); + pfmemalloc; +} + +static inline bool +sk_rmem_schedule(struct sock *sk, struct sk_buff *skb, int size) +{ + return __sk_rmem_schedule(sk, size, skb_pfmemalloc(skb)); } static inline int sk_unused_reserved_mem(const struct sock *sk) |