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Subject: Re: [PATCH v2 5/7] xen/9pfs: send requests to the backend
To: Stefano Stabellini <sstabellini@kernel.org>,
        xen-devel@lists.xenproject.org
References: <alpine.DEB.2.10.1703081557070.8160@sstabellini-ThinkPad-X260>
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Cc: linux-kernel@vger.kernel.org, Stefano Stabellini <stefano@aporeto.com>,
        jgross@suse.com, Eric Van Hensbergen <ericvh@gmail.com>,
        Ron Minnich <rminnich@sandia.gov>, Latchesar Ionkov <lucho@ionkov.net>,
        v9fs-developer@lists.sourceforge.net
From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Message-ID: <02343d8b-7602-181c-b21f-ba50d79415d5@oracle.com>
Date: Thu, 9 Mar 2017 10:46:10 -0500
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On 03/08/2017 06:58 PM, Stefano Stabellini wrote:
> Implement struct p9_trans_module create and close functions by looking
> at the available Xen 9pfs frontend-backend connections. We don't expect
> many frontend-backend connections, thus walking a list is OK.
>
> Send requests to the backend by copying each request to one of the
> available rings (each frontend-backend connection comes with multiple
> rings). Handle the ring and notifications following the 9pfs
> specification. If there are not enough free bytes on the ring for the
> request, wait on the wait_queue: the backend will send a notification
> after consuming more requests.
>
> Signed-off-by: Stefano Stabellini <stefano@aporeto.com>
> CC: boris.ostrovsky@oracle.com
> CC: jgross@suse.com
> CC: Eric Van Hensbergen <ericvh@gmail.com>
> CC: Ron Minnich <rminnich@sandia.gov>
> CC: Latchesar Ionkov <lucho@ionkov.net>
> CC: v9fs-developer@lists.sourceforge.net
> ---

Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>