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author | Jeff Layton <jlayton@redhat.com> | 2012-03-21 09:52:05 -0400 |
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committer | J. Bruce Fields <bfields@redhat.com> | 2012-03-26 11:49:47 -0400 |
commit | 7ea34ac15e45b790f2faa7d5f69c560a43f2de70 (patch) | |
tree | 1f44c11731e76f25036042d8b41231e42348e958 /fs/nfsd | |
parent | b3537c35c21f0e6750aa8bd786949b55509c6d0d (diff) | |
download | linux-stable-7ea34ac15e45b790f2faa7d5f69c560a43f2de70.tar.gz linux-stable-7ea34ac15e45b790f2faa7d5f69c560a43f2de70.tar.bz2 linux-stable-7ea34ac15e45b790f2faa7d5f69c560a43f2de70.zip |
nfsd: add a per-net-namespace struct for nfsd
Eventually, we'll need this when nfsd gets containerized fully. For
now, create a struct on a per-net-namespace basis that will just hold
a pointer to the cld_net structure. That struct will hold all of the
per-net data that we need for the cld tracker.
Eventually we can add other pernet objects to struct nfsd_net.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd')
-rw-r--r-- | fs/nfsd/netns.h | 34 | ||||
-rw-r--r-- | fs/nfsd/nfsctl.c | 15 |
2 files changed, 48 insertions, 1 deletions
diff --git a/fs/nfsd/netns.h b/fs/nfsd/netns.h new file mode 100644 index 000000000000..12e0cff435b4 --- /dev/null +++ b/fs/nfsd/netns.h @@ -0,0 +1,34 @@ +/* + * per net namespace data structures for nfsd + * + * Copyright (C) 2012, Jeff Layton <jlayton@redhat.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., 51 + * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef __NFSD_NETNS_H__ +#define __NFSD_NETNS_H__ + +#include <net/net_namespace.h> +#include <net/netns/generic.h> + +struct cld_net; + +struct nfsd_net { + struct cld_net *cld_net; +}; + +extern int nfsd_net_id; +#endif /* __NFSD_NETNS_H__ */ diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index 64c24af8d7ea..141197e04703 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -19,6 +19,7 @@ #include "nfsd.h" #include "cache.h" #include "fault_inject.h" +#include "netns.h" /* * We have a single directory with several nodes in it. @@ -1124,14 +1125,23 @@ static int create_proc_exports_entry(void) } #endif +int nfsd_net_id; +static struct pernet_operations nfsd_net_ops = { + .id = &nfsd_net_id, + .size = sizeof(struct nfsd_net), +}; + static int __init init_nfsd(void) { int retval; printk(KERN_INFO "Installing knfsd (copyright (C) 1996 okir@monad.swb.de).\n"); + retval = register_pernet_subsys(&nfsd_net_ops); + if (retval < 0) + return retval; retval = nfsd4_init_slabs(); if (retval) - return retval; + goto out_unregister_pernet; nfs4_state_init(); retval = nfsd_fault_inject_init(); /* nfsd fault injection controls */ if (retval) @@ -1169,6 +1179,8 @@ out_free_stat: nfsd_fault_inject_cleanup(); out_free_slabs: nfsd4_free_slabs(); +out_unregister_pernet: + unregister_pernet_subsys(&nfsd_net_ops); return retval; } @@ -1184,6 +1196,7 @@ static void __exit exit_nfsd(void) nfsd4_free_slabs(); nfsd_fault_inject_cleanup(); unregister_filesystem(&nfsd_fs_type); + unregister_pernet_subsys(&nfsd_net_ops); } MODULE_AUTHOR("Olaf Kirch <okir@monad.swb.de>"); |