On Thu, 24 May 2018, Davidlohr Bueso wrote:

	size = sizeof(*tbl) + nbuckets * sizeof(tbl->buckets[0]);
+	if (retry) {
+		gfp |= __GFP_NOFAIL;
+		tbl = kzalloc(size, gfp);
+	} /* fall-through */
+
	if (gfp != GFP_KERNEL)
		tbl = kzalloc(size, gfp | __GFP_NOWARN | __GFP_NORETRY);

This is wrong I'll fix in a v2, it should be _else_ if (gfp != GFP_KERNEL) ...