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| author | Stefan Hajnoczi <stefanha@redhat.com> | 2016-07-28 16:36:31 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2016-08-02 01:57:28 +0200 |
| commit | 6773b7dc39f165bd9d824b50ac52cbb3f87d53c8 (patch) | |
| tree | eec9a1d84ed6d1c3113cd35c47887d6dd42d4448 | |
| parent | VSOCK: transport-specific vsock_transport functions (diff) | |
| download | linux-6773b7dc39f165bd9d824b50ac52cbb3f87d53c8.tar.xz linux-6773b7dc39f165bd9d824b50ac52cbb3f87d53c8.zip | |
VSOCK: defer sock removal to transports
The virtio transport will implement graceful shutdown and the related
SO_LINGER socket option. This requires orphaning the sock but keeping
it in the table of connections after .release().
This patch adds the vsock_remove_sock() function and leaves it up to the
transport when to remove the sock.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| -rw-r--r-- | include/net/af_vsock.h | 1 | ||||
| -rw-r--r-- | net/vmw_vsock/af_vsock.c | 16 | ||||
| -rw-r--r-- | net/vmw_vsock/vmci_transport.c | 2 |
3 files changed, 13 insertions, 6 deletions
diff --git a/include/net/af_vsock.h b/include/net/af_vsock.h index 23f55259b60d..3af0b224f754 100644 --- a/include/net/af_vsock.h +++ b/include/net/af_vsock.h @@ -180,6 +180,7 @@ void vsock_remove_connected(struct vsock_sock *vsk); struct sock *vsock_find_bound_socket(struct sockaddr_vm *addr); struct sock *vsock_find_connected_socket(struct sockaddr_vm *src, struct sockaddr_vm *dst); +void vsock_remove_sock(struct vsock_sock *vsk); void vsock_for_each_connected_socket(void (*fn)(struct sock *sk)); #endif /* __AF_VSOCK_H__ */ diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index e34d96f8bde2..17dbbe64cd73 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -344,6 +344,16 @@ static bool vsock_in_connected_table(struct vsock_sock *vsk) return ret; } +void vsock_remove_sock(struct vsock_sock *vsk) +{ + if (vsock_in_bound_table(vsk)) + vsock_remove_bound(vsk); + + if (vsock_in_connected_table(vsk)) + vsock_remove_connected(vsk); +} +EXPORT_SYMBOL_GPL(vsock_remove_sock); + void vsock_for_each_connected_socket(void (*fn)(struct sock *sk)) { int i; @@ -660,12 +670,6 @@ static void __vsock_release(struct sock *sk) vsk = vsock_sk(sk); pending = NULL; /* Compiler warning. */ - if (vsock_in_bound_table(vsk)) - vsock_remove_bound(vsk); - - if (vsock_in_connected_table(vsk)) - vsock_remove_connected(vsk); - transport->release(vsk); lock_sock(sk); diff --git a/net/vmw_vsock/vmci_transport.c b/net/vmw_vsock/vmci_transport.c index 4120b7a538be..4be4fbbc0b50 100644 --- a/net/vmw_vsock/vmci_transport.c +++ b/net/vmw_vsock/vmci_transport.c @@ -1644,6 +1644,8 @@ static void vmci_transport_destruct(struct vsock_sock *vsk) static void vmci_transport_release(struct vsock_sock *vsk) { + vsock_remove_sock(vsk); + if (!vmci_handle_is_invalid(vmci_trans(vsk)->dg_handle)) { vmci_datagram_destroy_handle(vmci_trans(vsk)->dg_handle); vmci_trans(vsk)->dg_handle = VMCI_INVALID_HANDLE; |