Messages in this thread | | | Subject | Re: [PATCH 00/12] make rpc_pipefs be mountable multiple times | From | Trond Myklebust <> | Date | Tue, 21 Dec 2010 18:43:28 -0500 |
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On Wed, 2010-12-22 at 01:32 +0200, Kirill A. Shutemov wrote: > On Mon, Dec 20, 2010 at 09:46:44AM -0500, J. Bruce Fields wrote: > > By the way, was there ever a resolution to Trond's question?: > > > > http://marc.info/?l=linux-nfs&m=128655758712817&w=2 > > > > "The keyring upcalls are currently initiated through the same > > mechanism as module_request and therefore get started with the > > init_nsproxy namespace. We'd really like them to run inside the > > same container as the process. As part of the same problem, > > there is the issue of what to do with the dns resolver and > > Bryan's new keyring based idmapper code." > > I'm not sure that I understand the problem correctly. > > Currently, idmap uses dentry taken from client's cl_rpcclient->cl_path > (see nfs_idmap_new()). cl_rpcclient (and cl_path) is initialized with > rpcmount resolved against mount namespace of mount process (see > nfs_create_rpc_client()). > I assume it's correct.
That would be the legacy idmapper mechanism.
Please see CONFIG_NFS_USE_NEW_IDMAPPER, which uses the keyring upcall mechanism for greater scalability.
Cheers Trond -- Trond Myklebust Linux NFS client maintainer
NetApp Trond.Myklebust@netapp.com www.netapp.com
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