ocfs: constify xattr_handler

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/ocfs2/acl.c b/fs/ocfs2/acl.c
index e13fc9e..da70229 100644
--- a/fs/ocfs2/acl.c
+++ b/fs/ocfs2/acl.c
@@ -489,7 +489,7 @@
 	return ret;
 }
 
-struct xattr_handler ocfs2_xattr_acl_access_handler = {
+const struct xattr_handler ocfs2_xattr_acl_access_handler = {
 	.prefix	= POSIX_ACL_XATTR_ACCESS,
 	.flags	= ACL_TYPE_ACCESS,
 	.list	= ocfs2_xattr_list_acl_access,
@@ -497,7 +497,7 @@
 	.set	= ocfs2_xattr_set_acl,
 };
 
-struct xattr_handler ocfs2_xattr_acl_default_handler = {
+const struct xattr_handler ocfs2_xattr_acl_default_handler = {
 	.prefix	= POSIX_ACL_XATTR_DEFAULT,
 	.flags	= ACL_TYPE_DEFAULT,
 	.list	= ocfs2_xattr_list_acl_default,
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index 98ee6c4..e97b348 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -97,7 +97,7 @@
 	.xv.xr_list.l_count = cpu_to_le16(1),
 };
 
-struct xattr_handler *ocfs2_xattr_handlers[] = {
+const struct xattr_handler *ocfs2_xattr_handlers[] = {
 	&ocfs2_xattr_user_handler,
 	&ocfs2_xattr_acl_access_handler,
 	&ocfs2_xattr_acl_default_handler,
@@ -106,7 +106,7 @@
 	NULL
 };
 
-static struct xattr_handler *ocfs2_xattr_handler_map[OCFS2_XATTR_MAX] = {
+static const struct xattr_handler *ocfs2_xattr_handler_map[OCFS2_XATTR_MAX] = {
 	[OCFS2_XATTR_INDEX_USER]	= &ocfs2_xattr_user_handler,
 	[OCFS2_XATTR_INDEX_POSIX_ACL_ACCESS]
 					= &ocfs2_xattr_acl_access_handler,
@@ -540,7 +540,7 @@
 
 static inline const char *ocfs2_xattr_prefix(int name_index)
 {
-	struct xattr_handler *handler = NULL;
+	const struct xattr_handler *handler = NULL;
 
 	if (name_index > 0 && name_index < OCFS2_XATTR_MAX)
 		handler = ocfs2_xattr_handler_map[name_index];
@@ -7213,7 +7213,7 @@
 				     xattr_ac, data_ac);
 }
 
-struct xattr_handler ocfs2_xattr_security_handler = {
+const struct xattr_handler ocfs2_xattr_security_handler = {
 	.prefix	= XATTR_SECURITY_PREFIX,
 	.list	= ocfs2_xattr_security_list,
 	.get	= ocfs2_xattr_security_get,
@@ -7257,7 +7257,7 @@
 			       name, value, size, flags);
 }
 
-struct xattr_handler ocfs2_xattr_trusted_handler = {
+const struct xattr_handler ocfs2_xattr_trusted_handler = {
 	.prefix	= XATTR_TRUSTED_PREFIX,
 	.list	= ocfs2_xattr_trusted_list,
 	.get	= ocfs2_xattr_trusted_get,
@@ -7313,7 +7313,7 @@
 			       name, value, size, flags);
 }
 
-struct xattr_handler ocfs2_xattr_user_handler = {
+const struct xattr_handler ocfs2_xattr_user_handler = {
 	.prefix	= XATTR_USER_PREFIX,
 	.list	= ocfs2_xattr_user_list,
 	.get	= ocfs2_xattr_user_get,
diff --git a/fs/ocfs2/xattr.h b/fs/ocfs2/xattr.h
index abd72a4..aa64bb3 100644
--- a/fs/ocfs2/xattr.h
+++ b/fs/ocfs2/xattr.h
@@ -37,12 +37,12 @@
 	size_t value_len;
 };
 
-extern struct xattr_handler ocfs2_xattr_user_handler;
-extern struct xattr_handler ocfs2_xattr_trusted_handler;
-extern struct xattr_handler ocfs2_xattr_security_handler;
-extern struct xattr_handler ocfs2_xattr_acl_access_handler;
-extern struct xattr_handler ocfs2_xattr_acl_default_handler;
-extern struct xattr_handler *ocfs2_xattr_handlers[];
+extern const struct xattr_handler ocfs2_xattr_user_handler;
+extern const struct xattr_handler ocfs2_xattr_trusted_handler;
+extern const struct xattr_handler ocfs2_xattr_security_handler;
+extern const struct xattr_handler ocfs2_xattr_acl_access_handler;
+extern const struct xattr_handler ocfs2_xattr_acl_default_handler;
+extern const struct xattr_handler *ocfs2_xattr_handlers[];
 
 ssize_t ocfs2_listxattr(struct dentry *, char *, size_t);
 int ocfs2_xattr_get_nolock(struct inode *, struct buffer_head *, int,