static const struct rpc_pipe_ops gss_upcall_ops_v1 = {
    .upcall        = gss_v1_upcall,
    .downcall    = gss_pipe_downcall,
    .destroy_msg    = gss_pipe_destroy_msg,
    .open_pipe    = gss_pipe_open_v1,
    .release_pipe    = gss_pipe_release,
};
/// ...
static int
rpc_pipe_release(struct inode *inode, struct file *filp)
{
    struct rpc_pipe *pipe;
    struct rpc_pipe_msg *msg;
    int last_close;
    inode_lock(inode);
    pipe = RPC_I(inode)->pipe;
    if (pipe == NULL)
        goto out;
    msg = filp->private_data;
    if (msg != NULL) {
        spin_lock(&pipe->lock);
        msg->errno = -EAGAIN;
        list_del_init(&msg->list);
        spin_unlock(&pipe->lock);
        pipe->ops->destroy_msg(msg);
    }

> Чувак Greg KH вообще дальше носа своего не видит

Вот тут  https://joindiaspora.com/uploads/images/scaled_full_b39c6332...
хорошо видно, куда направлены глаза.