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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 29 Aug 2017 23:39:29 +0000
From:   Long Li <longli@...rosoft.com>
To:     Pavel Shilovsky <piastryyy@...il.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" <linux-rdma@...r.kernel.org>,
        Christoph Hellwig <hch@...radead.org>,
        "Tom Talpey" <ttalpey@...rosoft.com>,
        Matthew Wilcox <mawilcox@...rosoft.com>
Subject: RE: [Patch v3 06/19] CIFS: SMBD: Reconnect to SMBDirect session



> -----Original Message-----
> From: Pavel Shilovsky [mailto:piastryyy@...il.com]
> Sent: Tuesday, August 29, 2017 4:15 PM
> To: Long Li <longli@...rosoft.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
> >
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-cifs"
> > in the body of a message to majordomo@...r.kernel.org More
> majordomo
> > info at
> >
> https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fvger.k
> > ernel.org%2Fmajordomo-
> info.html&data=02%7C01%7Clongli%40microsoft.com%
> >
> 7C192678645752449a875b08d4ef33d874%7C72f988bf86f141af91ab2d7cd011d
> b47%
> >
> 7C1%7C0%7C636396453334398562&sdata=i5dZUoUU91foFGipTsgQBnmYJeU
> aeWww2QI
> > xoP9BSO4%3D&reserved=0
> 
> 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.

I will do this in v4.

> --
> Best regards,
> Pavel Shilovsky