netdev - Re: [PATCH v3 00/16] make rpc_pipefs be mountable multiple time

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Date:	Mon, 24 Jan 2011 19:25:18 -0500
From:	"J. Bruce Fields" <bfields@...ldses.org>
To:	"Kirill A. Shutemov" <kas@...nvz.org>
Cc:	Trond Myklebust <Trond.Myklebust@...app.com>,
	Neil Brown <neilb@...e.de>,
	Pavel Emelyanov <xemul@...allels.com>,
	linux-nfs@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
	Rob Landley <rlandley@...allels.com>,
	Al Viro <viro@...IV.linux.org.uk>,
	containers@...ts.linux-foundation.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 00/16] make rpc_pipefs be mountable multiple time

On Tue, Jan 25, 2011 at 01:55:45AM +0200, Kirill A. Shutemov wrote:
> On Fri, Jan 14, 2011 at 03:48:58PM +0200, Kirill A. Shutemov wrote:
> > Prepare nfs/sunrpc stack to use multiple instances of rpc_pipefs.
> > Only for client for now.
> > 
> > It's step forwart to get nfs work from container.
> 
> Any feedback?

I haven't seen any more problems with them, but also haven't looked all
that closely; I'm assuming Trond will handle them up at some point....

(Trond, tell me if I assume wrong.)

--b.

> 
> > Changelog:
> > 
> > v3:
> >  - rebase to the current Linus' tree (52cfd503ad)
> >  - rework get_rpc_pipefs() once again;
> >  - solve problem with rmmod sunrpc moudle;
> >  - free dns cache on killing rpc_pipefs superblock.
> > 
> > v2:
> >  - one of rpc_create() calls was missed initially, fixed;
> >  - change logic for get_rpc_pipefs(NULL);
> >  - export get_rpc_pipefs() to be able to use from modules (tnx J. Bruce Field);
> >  - change "From:" and "Signed-off-by:" addresses.
> > 
> > v1:
> >  - initial revision of the patchset.
> > 
> > Kirill A. Shutemov (16):
> >   sunrpc: mount rpc_pipefs on initialization
> >   sunrpc: introduce init_rpc_pipefs
> >   sunrpc: push init_rpc_pipefs up to rpc_create() callers
> >   sunrpc: tag svc_serv with rpc_pipefs mount point
> >   sunrpc: get rpc_pipefs mount point for svc_serv from callers
> >   lockd: get rpc_pipefs mount point from callers
> >   sunrpc: get rpc_pipefs mount point for rpcb_create[_local] from
> >     callers
> >   sunrpc: tag pipefs field of cache_detail with rpc_pipefs mount point
> >   sunrpc: introduce rpc_pipefs_add_destroy_cb()
> >   nfs: per-rpc_pipefs dns cache
> >   Export iterate_mounts symbol to be able to use from sunrpc module.
> >   sunrpc: introduce get_rpc_pipefs()
> >   nfs: introduce mount option 'rpcmount'
> >   sunrpc: make rpc_pipefs be mountable multiple times
> >   sunrpc: remove global init_rpc_pipefs
> >   Rework get_rpc_pipefs and introduce put_rpc_pipefs()
> > 
> >  fs/lockd/clntlock.c                |    8 +-
> >  fs/lockd/host.c                    |   15 ++-
> >  fs/lockd/mon.c                     |   13 ++-
> >  fs/lockd/svc.c                     |    4 +-
> >  fs/namespace.c                     |    1 +
> >  fs/nfs/cache_lib.c                 |   18 +--
> >  fs/nfs/cache_lib.h                 |    3 +-
> >  fs/nfs/callback.c                  |    7 +-
> >  fs/nfs/callback.h                  |    3 +-
> >  fs/nfs/client.c                    |   45 ++++++-
> >  fs/nfs/dns_resolve.c               |  137 ++++++++++++++++-----
> >  fs/nfs/dns_resolve.h               |   15 +--
> >  fs/nfs/inode.c                     |    9 +--
> >  fs/nfs/internal.h                  |   10 ++-
> >  fs/nfs/mount_clnt.c                |    1 +
> >  fs/nfs/namespace.c                 |    3 +-
> >  fs/nfs/nfs4namespace.c             |   20 ++--
> >  fs/nfs/super.c                     |   20 +++
> >  fs/nfsd/nfs4callback.c             |    5 +
> >  fs/nfsd/nfssvc.c                   |   20 +++-
> >  include/linux/lockd/bind.h         |    3 +-
> >  include/linux/lockd/lockd.h        |    4 +-
> >  include/linux/nfs_fs_sb.h          |    1 +
> >  include/linux/sunrpc/cache.h       |    9 +-
> >  include/linux/sunrpc/clnt.h        |    5 +-
> >  include/linux/sunrpc/rpc_pipe_fs.h |    7 +-
> >  include/linux/sunrpc/svc.h         |    9 +-
> >  net/sunrpc/cache.c                 |   16 ++-
> >  net/sunrpc/clnt.c                  |   19 ++--
> >  net/sunrpc/rpc_pipe.c              |  235 ++++++++++++++++++++++++++++++++----
> >  net/sunrpc/rpcb_clnt.c             |   19 ++-
> >  net/sunrpc/svc.c                   |   52 +++++---
> >  32 files changed, 549 insertions(+), 187 deletions(-)
> > 
> > -- 
> > 1.7.3.4
> > 
> 
> -- 
>  Kirill A. Shutemov
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