diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-05-28 08:12:24 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-05-28 21:11:45 +0300 |
| commit | d41ecaac903c9f4658a71d4e7a708673cfb5abba (patch) | |
| tree | 331fe773fd40fda6cd7469c3c05e5671019ce703 /net/ipv4 | |
| parent | 71c48eb81c9ecb6fed49dc33e7c9b621fdcb7bf8 (diff) | |
| download | linux-d41ecaac903c9f4658a71d4e7a708673cfb5abba.tar.xz | |
tcp: add tcp_sock_set_keepintvl
Add a helper to directly set the TCP_KEEPINTVL 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/ipv4')
| -rw-r--r-- | net/ipv4/tcp.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index bdf0ff933351..7eb083e09786 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -2934,6 +2934,18 @@ int tcp_sock_set_keepidle(struct sock *sk, int val) } EXPORT_SYMBOL(tcp_sock_set_keepidle); +int tcp_sock_set_keepintvl(struct sock *sk, int val) +{ + if (val < 1 || val > MAX_TCP_KEEPINTVL) + return -EINVAL; + + lock_sock(sk); + tcp_sk(sk)->keepalive_intvl = val * HZ; + release_sock(sk); + return 0; +} +EXPORT_SYMBOL(tcp_sock_set_keepintvl); + /* * Socket option code for TCP. */ |