posix_acl_from_xattr
acl = posix_acl_from_xattr(&init_user_ns, value, size);
acl = posix_acl_from_xattr(&init_user_ns, value, size);
acl = posix_acl_from_xattr(&init_user_ns, value, size);
acl = posix_acl_from_xattr(&init_user_ns, value, rc);
acl = posix_acl_from_xattr(fc->user_ns, value, size);
acl = posix_acl_from_xattr(&init_user_ns, data, len);
acl = posix_acl_from_xattr(&init_user_ns, value, size);
acl = posix_acl_from_xattr(&init_user_ns, buf, err);
acl = posix_acl_from_xattr(&init_user_ns, value, ret);
acl = posix_acl_from_xattr(current_user_ns(), kvalue, size);
EXPORT_SYMBOL (posix_acl_from_xattr);
struct posix_acl *posix_acl_from_xattr(struct user_namespace *user_ns,