search for: skb_set_owner_sk_saf

...ort_common.c b/net/vmw_vsock/virtio_transport_common.c >index b769fc258931..f01cd6adc5cb 100644 >--- a/net/vmw_vsock/virtio_transport_common.c >+++ b/net/vmw_vsock/virtio_transport_common.c >@@ -1343,6 +1343,7 @@ void virtio_transport_recv_pkt(struct virtio_transport *t, > > if (!skb_set_owner_sk_safe(skb, sk)) { > WARN_ONCE(1, "receiving vsock socket has sk_refcnt == 0\n"); >+ sock_put(sk); Did you have any warning, issue here? IIUC skb_set_owner_sk_safe() can return false only if the ref counter is 0, so calling a sock_put() on it should have no effect except to produce a...

...non-linear skb will be >>> created and filled with the pages of user's buffer. Pages of user's >>> buffer are locked in memory by 'get_user_pages()'. Second thing that >>> this patch does is replace type of skb owning: instead of calling >>> 'skb_set_owner_sk_safe()' it calls 'skb_set_owner_w()'. Reason of this >>> change is that '__zerocopy_sg_from_iter()' increments 'sk_wmem_alloc' >>> of socket, so to decrease this field correctly proper skb destructor is >>> needed: 'sock_wfree()'. This dest...