[PATCH] posix_acl.h: define missing ACL functions on non-posix-acl build

[Sergey Senozhatsky <sergey.senozhatsky@gmail.com>]

Some functions that are declared when CONFIG_POSIX_ACL is defined
are not declared when CONFIG_POSIX_ACL is not defined. Add the
missing ones:
  set_posix_acl(), posix_acl_update_mode(), get_cached_acl(),
  get_cached_acl_rcu(), set_cached_acl(), forget_cached_acl().

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
---
 include/linux/posix_acl.h | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h
index 90797f1b421d..f6d206359da5 100644
--- a/include/linux/posix_acl.h
+++ b/include/linux/posix_acl.h
@@ -117,6 +117,39 @@ static inline int posix_acl_create(struct inode *inode, umode_t *mode,
 static inline void forget_all_cached_acls(struct inode *inode)
 {
 }
+
+static inline int set_posix_acl(struct inode *inode, int type,
+				struct posix_acl *acl)
+{
+	return 0;
+}
+
+static inline int posix_acl_update_mode(struct inode *, umode_t *,
+					struct posix_acl **)
+{
+	return 0;
+}
+
+static inline struct posix_acl *get_cached_acl(struct inode *inode,
+					       int type)
+{
+	return NULL;
+}
+
+static inline struct posix_acl *get_cached_acl_rcu(struct inode *inode,
+						   int type)
+{
+	return NULL;
+}
+
+static inline void set_cached_acl(struct inode *inode, int type,
+				  struct posix_acl *acl)
+{
+}
+
+static inline void forget_cached_acl(struct inode *inode, int type)
+{
+}
 #endif /* CONFIG_FS_POSIX_ACL */
 
 struct posix_acl *get_acl(struct inode *inode, int type);
-- 
2.29.2