constify dentry_operations: rest

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c
index 3bbdb9d..1dd96d4 100644
--- a/fs/anon_inodes.c
+++ b/fs/anon_inodes.c
@@ -48,7 +48,7 @@
 	.get_sb		= anon_inodefs_get_sb,
 	.kill_sb	= kill_anon_super,
 };
-static struct dentry_operations anon_inodefs_dentry_operations = {
+static const struct dentry_operations anon_inodefs_dentry_operations = {
 	.d_delete	= anon_inodefs_delete_dentry,
 };
 
diff --git a/fs/libfs.c b/fs/libfs.c
index 49b4409..ec600bd 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -44,7 +44,7 @@
  */
 struct dentry *simple_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
 {
-	static struct dentry_operations simple_dentry_operations = {
+	static const struct dentry_operations simple_dentry_operations = {
 		.d_delete = simple_delete_dentry,
 	};
 
diff --git a/fs/pipe.c b/fs/pipe.c
index df37195..6ddf052 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -870,7 +870,7 @@
 				dentry->d_inode->i_ino);
 }
 
-static struct dentry_operations pipefs_dentry_operations = {
+static const struct dentry_operations pipefs_dentry_operations = {
 	.d_delete	= pipefs_delete_dentry,
 	.d_dname	= pipefs_dname,
 };