[PATCH v4 05/14] lockd: Relocate nlmsvc_unlock API declarations

[Chuck Lever <cel@kernel.org>]

From: Chuck Lever <chuck.lever@oracle.com>

The nlmsvc_unlock_all_by_sb() and nlmsvc_unlock_all_by_ip()
functions are part of lockd's external API, consumed by other
kernel subsystems. Their declarations currently reside in
linux/lockd/lockd.h alongside internal implementation details,
which blurs the boundary between lockd's public interface and
its private internals.

Moving these declarations to linux/lockd/bind.h groups them
with other external API functions and makes the separation
explicit. This clarifies which functions are intended for
external use and reduces the risk of internal implementation
details leaking into the public API surface.

Build-tested with allyesconfig; no functional changes.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
 fs/nfsd/nfsctl.c            | 2 +-
 include/linux/lockd/bind.h  | 7 +++++++
 include/linux/lockd/lockd.h | 6 ------
 3 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 39d711e25bff..4d8e3c1a7be3 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -11,7 +11,7 @@
 #include <linux/fs_context.h>
 
 #include <linux/sunrpc/svcsock.h>
-#include <linux/lockd/lockd.h>
+#include <linux/lockd/bind.h>
 #include <linux/sunrpc/addr.h>
 #include <linux/sunrpc/gss_api.h>
 #include <linux/sunrpc/rpc_pipe_fs.h>
diff --git a/include/linux/lockd/bind.h b/include/linux/lockd/bind.h
index 2f5dd9e943ee..82eca0a13ccc 100644
--- a/include/linux/lockd/bind.h
+++ b/include/linux/lockd/bind.h
@@ -21,6 +21,7 @@
 struct svc_rqst;
 struct rpc_task;
 struct rpc_clnt;
+struct super_block;
 
 /*
  * This is the set of functions for lockd->nfsd communication
@@ -80,4 +81,10 @@ extern int	nlmclnt_proc(struct nlm_host *host, int cmd, struct file_lock *fl, vo
 extern int	lockd_up(struct net *net, const struct cred *cred);
 extern void	lockd_down(struct net *net);
 
+/*
+ * Cluster failover support
+ */
+int nlmsvc_unlock_all_by_sb(struct super_block *sb);
+int nlmsvc_unlock_all_by_ip(struct sockaddr *server_addr);
+
 #endif /* LINUX_LOCKD_BIND_H */
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h
index 195e6ce28f6e..0d883f48ec21 100644
--- a/include/linux/lockd/lockd.h
+++ b/include/linux/lockd/lockd.h
@@ -311,12 +311,6 @@ void		  nlmsvc_mark_resources(struct net *);
 void		  nlmsvc_free_host_resources(struct nlm_host *);
 void		  nlmsvc_invalidate_all(void);
 
-/*
- * Cluster failover support
- */
-int           nlmsvc_unlock_all_by_sb(struct super_block *sb);
-int           nlmsvc_unlock_all_by_ip(struct sockaddr *server_addr);
-
 static inline struct file *nlmsvc_file_file(const struct nlm_file *file)
 {
 	return file->f_file[O_RDONLY] ?
-- 
2.52.0