linux-kernel - Re: [RFC PATCH 08/13] vsock: move vsock_insert_unbound() in the vsock

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Message-ID: <20191009123423.GI5747@stefanha-x1.localdomain>
Date:   Wed, 9 Oct 2019 13:34:23 +0100
From:   Stefan Hajnoczi <stefanha@...il.com>
To:     Stefano Garzarella <sgarzare@...hat.com>
Cc:     netdev@...r.kernel.org, Sasha Levin <sashal@...nel.org>,
        linux-hyperv@...r.kernel.org,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        kvm@...r.kernel.org, "Michael S. Tsirkin" <mst@...hat.com>,
        Dexuan Cui <decui@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        linux-kernel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org,
        Stefan Hajnoczi <stefanha@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jorgen Hansen <jhansen@...are.com>
Subject: Re: [RFC PATCH 08/13] vsock: move vsock_insert_unbound() in the
 vsock_create()

On Fri, Sep 27, 2019 at 01:26:58PM +0200, Stefano Garzarella wrote:
> vsock_insert_unbound() was called only when 'sock' parameter of
> __vsock_create() was not null. This only happened when
> __vsock_create() was called by vsock_create().
> 
> In order to simplify the multi-transports support, this patch
> moves vsock_insert_unbound() at the end of vsock_create().
> 
> Signed-off-by: Stefano Garzarella <sgarzare@...hat.com>
> ---
>  net/vmw_vsock/af_vsock.c | 13 +++++++++----
>  1 file changed, 9 insertions(+), 4 deletions(-)

Maybe transports shouldn't call __vsock_create() directly.  They always
pass NULL as the parent socket, so we could have a more specific
function that transports call without a parent sock argument.  This
would eliminate any concern over moving vsock_insert_unbound() out of
this function.  In any case, I've checked the code and this patch is
correct.

Reviewed-by: Stefan Hajnoczi <stefanha@...hat.com>

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