+
+/*
+ * Fetch a robust-list pointer. Bit 0 signals PI futexes:
+ */
+static inline int
+fetch_robust_entry(compat_uptr_t *uentry, struct robust_list __user **entry,
+ compat_uptr_t __user *head, int *pi)
+{
+ if (get_user(*uentry, head))
+ return -EFAULT;
+
+ *entry = compat_ptr((*uentry) & ~1);
+ *pi = (unsigned int)(*uentry) & 1;
+
+ return 0;
+}
+