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Revert "tcp: deny tcp_disconnect() when threads are waiting"

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This reverts commit cccc620970 which is
commit 4faeee0cf8a5d88d63cdbc3bab124fb0e6aed08c upstream.

It breaks the Android kernel abi, and if it is needed in the future can
come back in an abi-safe way.

Bug: 161946584
Change-Id: If50dd244848a8aa70b08be347020b263c71f4a61
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Greg Kroah-Hartman
2023-06-28 06:29:42 +00:00
parent 848ca335c1
commit 0c0856714e
4 changed files with 0 additions and 13 deletions
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6
net/ipv4/tcp.c
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@@ -2727,12 +2727,6 @@ int tcp_disconnect(struct sock *sk, int flags)
int old_state = sk->sk_state;
u32 seq;
/* Deny disconnect if other threads are blocked in sk_wait_event()
* or inet_wait_for_connect().
*/
if (sk->sk_wait_pending)
return -EBUSY;
if (old_state != TCP_CLOSE)
tcp_set_state(sk, TCP_CLOSE);