SUNRPC: Add a helper to allow sharing of rpc_pipefs directory objects
Add support for looking up existing objects and creating new ones if there
is no match.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h
index b0cf181..a353e03 100644
--- a/include/linux/sunrpc/rpc_pipe_fs.h
+++ b/include/linux/sunrpc/rpc_pipe_fs.h
@@ -106,6 +106,12 @@
extern void rpc_remove_pipe_dir_object(struct net *net,
struct rpc_pipe_dir_head *pdh,
struct rpc_pipe_dir_object *pdo);
+extern struct rpc_pipe_dir_object *rpc_find_or_alloc_pipe_dir_object(
+ struct net *net,
+ struct rpc_pipe_dir_head *pdh,
+ int (*match)(struct rpc_pipe_dir_object *, void *),
+ struct rpc_pipe_dir_object *(*alloc)(void *),
+ void *data);
struct cache_detail;
extern struct dentry *rpc_create_cache_dir(struct dentry *,