xiaomi-sm8450/android_kernel_xiaomi_sm8450
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net: add sock_set_reuseaddr

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Add a helper to directly set the SO_REUSEADDR sockopt from kernel space
without going through a fake uaccess.

For this the iscsi target now has to formally depend on inet to avoid
a mostly theoretical compile failure.  For actual operation it already
did depend on having ipv4 or ipv6 support.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Christoph Hellwig
2020-05-28 07:12:09 +02:00
committed by David S. Miller
parent 1eba1110f0
commit b58f0e8f38
7 changed files with 19 additions and 34 deletions
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6
fs/dlm/lowcomms.c
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@@ -1127,12 +1127,8 @@ static struct socket *tcp_create_listen_sock(struct connection *con,
kernel_setsockopt(sock, SOL_TCP, TCP_NODELAY, (char *)&one,
sizeof(one));
result = kernel_setsockopt(sock, SOL_SOCKET, SO_REUSEADDR,
(char *)&one, sizeof(one));
sock_set_reuseaddr(sock->sk);
if (result < 0) {
log_print("Failed to set SO_REUSEADDR on socket: %d", result);
}
write_lock_bh(&sock->sk->sk_callback_lock);
sock->sk->sk_user_data = con;
save_listen_callbacks(sock);