Re: [PATCH net-next] sctp: cancel a blocking accept when shutdown a listen socket

Hello:

This patch was applied to netdev/net-next.git (main)
by David S. Miller [off-list ref]:

On Mon,  1 Jul 2024 13:48:49 -0400 you wrote:

As David Laight noticed,

"In a multithreaded program it is reasonable to have a thread blocked in
 accept(). With TCP a subsequent shutdown(listen_fd, SHUT_RDWR) causes
 the accept to fail. But nothing happens for SCTP."

sctp_disconnect() is eventually called when shutdown a listen socket,
but nothing is done in this function. This patch sets RCV_SHUTDOWN
flag in sk->sk_shutdown there, and adds the check (sk->sk_shutdown &
RCV_SHUTDOWN) to break and return in sctp_accept().

[...]

Here is the summary with links:
  - [net-next] sctp: cancel a blocking accept when shutdown a listen socket
    https://git.kernel.org/netdev/net-next/c/cda91d5b911a

You are awesome, thank you!
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