diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-05-28 07:12:15 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-05-28 11:11:44 -0700 |
| commit | ce3d9544cecacd40389c399d2b7ca31acc533b70 (patch) | |
| tree | 188689107da003fa8137181ab48f6ad973414acc /net/core | |
| parent | 783da70e83967efeacf3c02c9dcfdc2b17bd62eb (diff) | |
| download | linux-ce3d9544cecacd40389c399d2b7ca31acc533b70.tar.bz2 | |
net: add sock_set_keepalive
Add a helper to directly set the SO_KEEPALIVE sockopt from kernel space
without going through a fake uaccess.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/sock.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/net/core/sock.c b/net/core/sock.c index e4a4dd2b3d8b..728f5fb156a0 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -779,6 +779,16 @@ void sock_enable_timestamps(struct sock *sk) } EXPORT_SYMBOL(sock_enable_timestamps); +void sock_set_keepalive(struct sock *sk) +{ + lock_sock(sk); + if (sk->sk_prot->keepalive) + sk->sk_prot->keepalive(sk, true); + sock_valbool_flag(sk, SOCK_KEEPOPEN, true); + release_sock(sk); +} +EXPORT_SYMBOL(sock_set_keepalive); + /* * This is meant for all protocols to use and covers goings on * at the socket level. Everything here is generic. |