gfs: constify xattr_handler

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/gfs2/acl.c

@@ -335,7 +335,7 @@ out:
 	return error;
 }
 
-struct xattr_handler gfs2_xattr_system_handler = {
+const struct xattr_handler gfs2_xattr_system_handler = {
 	.prefix = XATTR_SYSTEM_PREFIX,
 	.flags  = GFS2_EATYPE_SYS,
 	.get    = gfs2_xattr_system_get,

fs/gfs2/acl.h

@@ -19,6 +19,6 @@
 extern int gfs2_check_acl(struct inode *inode, int mask);
 extern int gfs2_acl_create(struct gfs2_inode *dip, struct inode *inode);
 extern int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr);
-extern struct xattr_handler gfs2_xattr_system_handler;
+extern const struct xattr_handler gfs2_xattr_system_handler;
 
 #endif /* __ACL_DOT_H__ */

fs/gfs2/super.h

@@ -54,7 +54,7 @@ extern struct file_system_type gfs2meta_fs_type;
 extern const struct export_operations gfs2_export_ops;
 extern const struct super_operations gfs2_super_ops;
 extern const struct dentry_operations gfs2_dops;
-extern struct xattr_handler *gfs2_xattr_handlers[];
+extern const struct xattr_handler *gfs2_xattr_handlers[];
 
 #endif /* __SUPER_DOT_H__ */
 

fs/gfs2/xattr.c

@@ -1535,21 +1535,21 @@ out_alloc:
 	return error;
 }
 
-static struct xattr_handler gfs2_xattr_user_handler = {
+static const struct xattr_handler gfs2_xattr_user_handler = {
 	.prefix = XATTR_USER_PREFIX,
 	.flags  = GFS2_EATYPE_USR,
 	.get    = gfs2_xattr_get,
 	.set    = gfs2_xattr_set,
 };
 
-static struct xattr_handler gfs2_xattr_security_handler = {
+static const struct xattr_handler gfs2_xattr_security_handler = {
 	.prefix = XATTR_SECURITY_PREFIX,
 	.flags  = GFS2_EATYPE_SECURITY,
 	.get    = gfs2_xattr_get,
 	.set    = gfs2_xattr_set,
 };
 
-struct xattr_handler *gfs2_xattr_handlers[] = {
+const struct xattr_handler *gfs2_xattr_handlers[] = {
 	&gfs2_xattr_user_handler,
 	&gfs2_xattr_security_handler,
 	&gfs2_xattr_system_handler,