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authorPaolo Abeni <pabeni@redhat.com>2020-11-16 10:48:04 +0100
committerJakub Kicinski <kuba@kernel.org>2020-11-16 10:46:06 -0800
commit77c3c95637526f1e4330cc9a4b2065f668c2c4fe (patch)
tree0b7ce3f20d8bd3109f1b42ba14519bcf1f2030ca /net/ipv4/tcp.c
parente2223995a2872c0e23ed44e1dbb493817b567666 (diff)
downloadlinux-77c3c95637526f1e4330cc9a4b2065f668c2c4fe.tar.bz2
tcp: factor out __tcp_close() helper
unlocked version of protocol level close, will be used by MPTCP to allow decouple orphaning and subflow level close. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv4/tcp.c')
-rw-r--r--net/ipv4/tcp.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index a40981e347c0..b285b338a019 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2420,13 +2420,12 @@ bool tcp_check_oom(struct sock *sk, int shift)
return too_many_orphans || out_of_socket_memory;
}
-void tcp_close(struct sock *sk, long timeout)
+void __tcp_close(struct sock *sk, long timeout)
{
struct sk_buff *skb;
int data_was_unread = 0;
int state;
- lock_sock(sk);
sk->sk_shutdown = SHUTDOWN_MASK;
if (sk->sk_state == TCP_LISTEN) {
@@ -2590,6 +2589,12 @@ adjudge_to_death:
out:
bh_unlock_sock(sk);
local_bh_enable();
+}
+
+void tcp_close(struct sock *sk, long timeout)
+{
+ lock_sock(sk);
+ __tcp_close(sk, timeout);
release_sock(sk);
sock_put(sk);
}