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  • Al Viro's avatar
    coallocate socket_wq with socket itself · 333f7909
    Al Viro authored
    socket->wq is assign-once, set when we are initializing both
    struct socket it's in and struct socket_wq it points to.  As the
    matter of fact, the only reason for separate allocation was the
    ability to RCU-delay freeing of socket_wq.  RCU-delaying the
    freeing of socket itself gets rid of that need, so we can just
    fold struct socket_wq into the end of struct socket and simplify
    the life both for sock_alloc_inode() (one allocation instead of
    two) and for tun/tap oddballs, where we used to embed struct socket
    and struct socket_wq into the same structure (now - embedding just
    the struct socket).
    Note that reference to struct socket_wq in struct sock does remain
    a reference - that's unchanged.
    Signed-off-by: default avatarAl Viro <>
    Signed-off-by: default avatarDavid S. Miller <>