constify security_path_{mkdir,mknod,symlink}

... as well as unix_mknod() and may_o_create()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
index 322912c..919fb4f 100644
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
@@ -1361,13 +1361,13 @@
 
 #ifdef CONFIG_SECURITY_PATH
 	int (*path_unlink)(const struct path *dir, struct dentry *dentry);
-	int (*path_mkdir)(struct path *dir, struct dentry *dentry,
+	int (*path_mkdir)(const struct path *dir, struct dentry *dentry,
 				umode_t mode);
 	int (*path_rmdir)(const struct path *dir, struct dentry *dentry);
-	int (*path_mknod)(struct path *dir, struct dentry *dentry,
+	int (*path_mknod)(const struct path *dir, struct dentry *dentry,
 				umode_t mode, unsigned int dev);
 	int (*path_truncate)(const struct path *path);
-	int (*path_symlink)(struct path *dir, struct dentry *dentry,
+	int (*path_symlink)(const struct path *dir, struct dentry *dentry,
 				const char *old_name);
 	int (*path_link)(struct dentry *old_dentry, struct path *new_dir,
 				struct dentry *new_dentry);
diff --git a/include/linux/security.h b/include/linux/security.h
index e292d8c..ccb8c2a 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -1443,12 +1443,12 @@
 
 #ifdef CONFIG_SECURITY_PATH
 int security_path_unlink(const struct path *dir, struct dentry *dentry);
-int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode);
+int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode);
 int security_path_rmdir(const struct path *dir, struct dentry *dentry);
-int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
+int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
 			unsigned int dev);
 int security_path_truncate(const struct path *path);
-int security_path_symlink(struct path *dir, struct dentry *dentry,
+int security_path_symlink(const struct path *dir, struct dentry *dentry,
 			  const char *old_name);
 int security_path_link(struct dentry *old_dentry, struct path *new_dir,
 		       struct dentry *new_dentry);
@@ -1464,7 +1464,7 @@
 	return 0;
 }
 
-static inline int security_path_mkdir(struct path *dir, struct dentry *dentry,
+static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry,
 				      umode_t mode)
 {
 	return 0;
@@ -1475,7 +1475,7 @@
 	return 0;
 }
 
-static inline int security_path_mknod(struct path *dir, struct dentry *dentry,
+static inline int security_path_mknod(const struct path *dir, struct dentry *dentry,
 				      umode_t mode, unsigned int dev)
 {
 	return 0;
@@ -1486,7 +1486,7 @@
 	return 0;
 }
 
-static inline int security_path_symlink(struct path *dir, struct dentry *dentry,
+static inline int security_path_symlink(const struct path *dir, struct dentry *dentry,
 					const char *old_name)
 {
 	return 0;