LSM: lift extracting and parsing LSM options into the caller of ->sb_remount()

This paves the way for retaining the LSM options from a common filesystem
mount context during a mount parameter parsing phase to be instituted prior
to actual mount/reconfiguration actions.

Reviewed-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/security/security.c b/security/security.c
index b5fc8e1..3f50beb 100644
--- a/security/security.c
+++ b/security/security.c
@@ -390,9 +390,10 @@ int security_sb_copy_data(char *orig, char *copy)
 }
 EXPORT_SYMBOL(security_sb_copy_data);
 
-int security_sb_remount(struct super_block *sb, void *data)
+int security_sb_remount(struct super_block *sb,
+			struct security_mnt_opts *opts)
 {
-	return call_int_hook(sb_remount, 0, sb, data);
+	return call_int_hook(sb_remount, 0, sb, opts);
 }
 
 int security_sb_kern_mount(struct super_block *sb, int flags,