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From: Cong Wang <xiyou.wangcong@gmail.com>
To: Jiayuan Chen <jiayuan.chen@linux.dev>
Cc: bpf@vger.kernel.org, mrpre@163.com,
	Boris Pismenny <borisp@nvidia.com>,
	John Fastabend <john.fastabend@gmail.com>,
	Jakub Kicinski <kuba@kernel.org>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Paolo Abeni <pabeni@redhat.com>, Simon Horman <horms@kernel.org>,
	Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Andrii Nakryiko <andrii@kernel.org>,
	Martin KaFai Lau <martin.lau@linux.dev>,
	Eduard Zingerman <eddyz87@gmail.com>, Song Liu <song@kernel.org>,
	Yonghong Song <yonghong.song@linux.dev>,
	KP Singh <kpsingh@kernel.org>,
	Stanislav Fomichev <sdf@fomichev.me>, Hao Luo <haoluo@google.com>,
	Jiri Olsa <jolsa@kernel.org>, Mykola Lysenko <mykolal@fb.com>,
	Shuah Khan <shuah@kernel.org>,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-kselftest@vger.kernel.org
Subject: Re: [PATCH bpf-next v1 1/2] ktls, sockmap: Fix missing uncharge operation
Date: Mon, 28 Apr 2025 17:14:54 -0700	[thread overview]
Message-ID: <aBAZ/p0Yj2kFGHhg@pop-os.localdomain> (raw)
In-Reply-To: <20250425060015.6968-2-jiayuan.chen@linux.dev>

On Fri, Apr 25, 2025 at 01:59:57PM +0800, Jiayuan Chen wrote:
>  net/tls/tls_sw.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
> index f3d7d19482da..fc88e34b7f33 100644
> --- a/net/tls/tls_sw.c
> +++ b/net/tls/tls_sw.c
> @@ -908,6 +908,13 @@ static int bpf_exec_tx_verdict(struct sk_msg *msg, struct sock *sk,
>  					    &msg_redir, send, flags);
>  		lock_sock(sk);
>  		if (err < 0) {
> +			/* Regardless of whether the data represented by
> +			 * msg_redir is sent successfully, we have already
> +			 * uncharged it via sk_msg_return_zero(). The
> +			 * msg->sg.size represents the remaining unprocessed
> +			 * data, which needs to be uncharged here.
> +			 */
> +			sk_mem_uncharge(sk, msg->sg.size);
>  			*copied -= sk_msg_free_nocharge(sk, &msg_redir);

Equivalent to sk_msg_free() ?

Thanks.

  reply	other threads:[~2025-04-29  0:14 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-25  5:59 [PATCH bpf-next v1 0/2] ktls, sockmap: Fix missing uncharge operation and add selfttest Jiayuan Chen
2025-04-25  5:59 ` [PATCH bpf-next v1 1/2] ktls, sockmap: Fix missing uncharge operation Jiayuan Chen
2025-04-29  0:14   ` Cong Wang [this message]
2025-04-29  1:55     ` Jiayuan Chen
2025-05-04 20:19   ` Cong Wang
2025-04-25  5:59 ` [PATCH bpf-next v1 2/2] selftests/bpf: Add test to cover sockmap with ktls Jiayuan Chen
2025-05-02  5:26 ` [PATCH bpf-next v1 0/2] ktls, sockmap: Fix missing uncharge operation and add selfttest John Fastabend

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