linux-kernel - Re: [Patch v3 06/19] CIFS: SMBD: Reconnect to SMBDirect session

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Message-ID: <CAKywueT9qYnY1cXwtrc4HgRHMt27+JOJafpFTupwV45nViSQbw@mail.gmail.com>
Date:   Tue, 29 Aug 2017 16:15:29 -0700
From:   Pavel Shilovsky <piastryyy@...il.com>
To:     Long Li <longli@...hange.microsoft.com>
Cc:     Steve French <sfrench@...ba.org>,
        linux-cifs <linux-cifs@...r.kernel.org>,
        samba-technical <samba-technical@...ts.samba.org>,
        Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-rdma@...r.kernel.org, Christoph Hellwig <hch@...radead.org>,
        Tom Talpey <ttalpey@...rosoft.com>,
        Matthew Wilcox <mawilcox@...rosoft.com>,
        Long Li <longli@...rosoft.com>
Subject: Re: [Patch v3 06/19] CIFS: SMBD: Reconnect to SMBDirect session

2017-08-29 12:29 GMT-07:00 Long Li <longli@...hange.microsoft.com>:
> From: Long Li <longli@...rosoft.com>
>
> Do a reconnect on SMBDirect when it is used as the connection. Reconnect can
> happen for many reasons and it's mostly the decision of upper layer SMB2 not
> SMBDirect.
>
> Signed-off-by: Long Li <longli@...rosoft.com>
> ---
>  fs/cifs/connect.c | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
> index 43b4d54..341a3fd 100644
> --- a/fs/cifs/connect.c
> +++ b/fs/cifs/connect.c
> @@ -409,7 +409,11 @@ cifs_reconnect(struct TCP_Server_Info *server)
>
>                 /* we should try only the port we connected to before */
>                 mutex_lock(&server->srv_mutex);
> -               rc = generic_ip_connect(server);
> +               if (server->rdma)
> +                       rc = smbd_reconnect(server);
> +               else
> +                       rc = generic_ip_connect(server);
> +
>                 if (rc) {
>                         cifs_dbg(FYI, "reconnect error %d\n", rc);
>                         mutex_unlock(&server->srv_mutex);
> --
> 2.7.4
>
> --
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It is a easier to follow the logic if the definition is introduced
together with using of this function in the existing code. I suggest
to add smbd_reconnect() definition in this patch.
--
Best regards,
Pavel Shilovsky