bool __should_failslab(struct kmem_cache *s, gfp_t gfpflags)
{
+ int flags = 0;
+
/* No fault-injection for bootstrap cache */
if (unlikely(s == kmem_cache))
return false;
if (failslab.cache_filter && !(s->flags & SLAB_FAILSLAB))
return false;
+ /*
+ * In some cases, it expects to specify __GFP_NOWARN
+ * to avoid printing any information(not just a warning),
+ * thus avoiding deadlocks. See commit 6b9dbedbe349 for
+ * details.
+ */
if (gfpflags & __GFP_NOWARN)
- failslab.attr.no_warn = true;
+ flags |= FAULT_NOWARN;
- return should_fail(&failslab.attr, s->object_size);
+ return should_fail_ex(&failslab.attr, s->object_size, flags);
}
static int __init setup_failslab(char *str)