IDR test suite: Check handling negative end correctly



One of the charming quirks of the idr_alloc() interface is that you
can pass a negative end and it will be interpreted as "maximum".  Ensure
we don't break that.

Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>

parent 490645d0

tools/testing/radix-tree/idr-test.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -207,6 +207,7 @@ void idr_checks(void)
		assert(idr_alloc(&idr, item, i, i + 10, GFP_KERNEL) == i);
		}
		assert(idr_alloc(&idr, DUMMY_PTR, i - 2, i, GFP_KERNEL) == -ENOSPC);
		assert(idr_alloc(&idr, DUMMY_PTR, i - 2, i + 10, GFP_KERNEL) == -ENOSPC);

		idr_for_each(&idr, item_idr_free, &idr);
		idr_destroy(&idr);