test_ida: check_ida_destroy and check_ida_alloc
Move these tests from the userspace test-suite to the kernel test-suite.
Also convert check_ida_random to the new API.
Signed-off-by: Matthew Wilcox <willy@infradead.org>
diff --git a/lib/test_ida.c b/lib/test_ida.c
index eaee9a2..2d1637d 100644
--- a/lib/test_ida.c
+++ b/lib/test_ida.c
@@ -26,6 +26,58 @@ void ida_dump(struct ida *ida) { }
} while (0)
/*
+ * Straightforward checks that allocating and freeing IDs work.
+ */
+static void ida_check_alloc(struct ida *ida)
+{
+ int i, id;
+
+ for (i = 0; i < 10000; i++)
+ IDA_BUG_ON(ida, ida_alloc(ida, GFP_KERNEL) != i);
+
+ ida_free(ida, 20);
+ ida_free(ida, 21);
+ for (i = 0; i < 3; i++) {
+ id = ida_alloc(ida, GFP_KERNEL);
+ IDA_BUG_ON(ida, id < 0);
+ if (i == 2)
+ IDA_BUG_ON(ida, id != 10000);
+ }
+
+ for (i = 0; i < 5000; i++)
+ ida_free(ida, i);
+
+ IDA_BUG_ON(ida, ida_alloc_min(ida, 5000, GFP_KERNEL) != 10001);
+ ida_destroy(ida);
+
+ IDA_BUG_ON(ida, !ida_is_empty(ida));
+}
+
+/* Destroy an IDA with a single entry at @base */
+static void ida_check_destroy_1(struct ida *ida, unsigned int base)
+{
+ IDA_BUG_ON(ida, ida_alloc_min(ida, base, GFP_KERNEL) != base);
+ IDA_BUG_ON(ida, ida_is_empty(ida));
+ ida_destroy(ida);
+ IDA_BUG_ON(ida, !ida_is_empty(ida));
+}
+
+/* Check that ida_destroy and ida_is_empty work */
+static void ida_check_destroy(struct ida *ida)
+{
+ /* Destroy an already-empty IDA */
+ IDA_BUG_ON(ida, !ida_is_empty(ida));
+ ida_destroy(ida);
+ IDA_BUG_ON(ida, !ida_is_empty(ida));
+
+ ida_check_destroy_1(ida, 0);
+ ida_check_destroy_1(ida, 1);
+ ida_check_destroy_1(ida, 1023);
+ ida_check_destroy_1(ida, 1024);
+ ida_check_destroy_1(ida, 12345678);
+}
+
+/*
* Check what happens when we fill a leaf and then delete it. This may
* discover mishandling of IDR_FREE.
*/
@@ -103,6 +155,8 @@ static int ida_checks(void)
DEFINE_IDA(ida);
IDA_BUG_ON(&ida, !ida_is_empty(&ida));
+ ida_check_alloc(&ida);
+ ida_check_destroy(&ida);
ida_check_leaf(&ida, 0);
ida_check_leaf(&ida, 1024);
ida_check_leaf(&ida, 1024 * 64);