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authorJeff Layton <jlayton@redhat.com>2013-11-14 07:25:17 -0500
committerTrond Myklebust <Trond.Myklebust@netapp.com>2013-12-06 13:06:30 -0500
commit4b9a445e3eeb8bd9278b1ae51c1b3a651e370cd6 (patch)
tree883070dd3c7eaafc185787649c5591528478eb3b /include/linux
parentc7848f69ec4a8c03732cde5c949bd2aa711a9f4b (diff)
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sunrpc: create a new dummy pipe for gssd to hold open
rpc.gssd will naturally hold open any pipe named */clnt*/gssd that shows up under rpc_pipefs. That behavior gives us a reliable mechanism to tell whether it's actually running or not. Create a new toplevel "gssd" directory in rpc_pipefs when it's mounted. Under that directory create another directory called "clntXX", and then within that a pipe called "gssd". We'll never send an upcall along that pipe, and any downcall written to it will just return -EINVAL. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/sunrpc/rpc_pipe_fs.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h
index a353e0300b54..85f13424647c 100644
--- a/include/linux/sunrpc/rpc_pipe_fs.h
+++ b/include/linux/sunrpc/rpc_pipe_fs.h
@@ -84,7 +84,8 @@ enum {
extern struct dentry *rpc_d_lookup_sb(const struct super_block *sb,
const unsigned char *dir_name);
-extern void rpc_pipefs_init_net(struct net *net);
+extern int rpc_pipefs_init_net(struct net *net);
+extern void rpc_pipefs_exit_net(struct net *net);
extern struct super_block *rpc_get_sb_net(const struct net *net);
extern void rpc_put_sb_net(const struct net *net);