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Commit 0a385639 authored by Matthew Wilcox's avatar Matthew Wilcox
Browse files

test_ida: Move ida_check_leaf 



Convert to new API and move to kernel space.  Take the opportunity to
test the situation a little more thoroughly (ie at different offsets).

Signed-off-by: default avatarMatthew Wilcox <willy@infradead.org>
parent 06b01113

lib/test_ida.c

+25 −0
Original line number Diff line number Diff line
@@ -25,11 +25,36 @@ void ida_dump(struct ida *ida) { } 
	}								\

} while (0)



/*

 * Check what happens when we fill a leaf and then delete it.  This may

 * discover mishandling of IDR_FREE.

 */

static void ida_check_leaf(struct ida *ida, unsigned int base)

{

	unsigned long i;



	for (i = 0; i < IDA_BITMAP_BITS; i++) {

		IDA_BUG_ON(ida, ida_alloc_min(ida, base, GFP_KERNEL) !=

				base + i);

	}



	ida_destroy(ida);

	IDA_BUG_ON(ida, !ida_is_empty(ida));



	IDA_BUG_ON(ida, ida_alloc(ida, GFP_KERNEL) != 0);

	IDA_BUG_ON(ida, ida_is_empty(ida));

	ida_free(ida, 0);

	IDA_BUG_ON(ida, !ida_is_empty(ida));

}



static int ida_checks(void)

{

	DEFINE_IDA(ida);



	IDA_BUG_ON(&ida, !ida_is_empty(&ida));

	ida_check_leaf(&ida, 0);

	ida_check_leaf(&ida, 1024);

	ida_check_leaf(&ida, 1024 * 64);



	printk("IDA: %u of %u tests passed\n", tests_passed, tests_run);

	return (tests_run != tests_passed) ? 0 : -EINVAL;

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

+0 −27
Original line number Diff line number Diff line
@@ -336,32 +336,6 @@ void ida_check_nomem(void) 
	IDA_BUG_ON(&ida, !ida_is_empty(&ida));

}



/*

 * Check what happens when we fill a leaf and then delete it.  This may

 * discover mishandling of IDR_FREE.

 */

void ida_check_leaf(void)

{

	DEFINE_IDA(ida);

	int id;

	unsigned long i;



	for (i = 0; i < IDA_BITMAP_BITS; i++) {

		assert(ida_pre_get(&ida, GFP_KERNEL));

		assert(!ida_get_new(&ida, &id));

		assert(id == i);

	}



	ida_destroy(&ida);

	assert(ida_is_empty(&ida));



	assert(ida_pre_get(&ida, GFP_KERNEL));

	assert(!ida_get_new(&ida, &id));

	assert(id == 0);

	ida_destroy(&ida);

	assert(ida_is_empty(&ida));

}



/*

 * Check handling of conversions between exceptional entries and full bitmaps.

 */
@@ -560,7 +534,6 @@ void user_ida_checks(void) 
	ida_destroy(&ida);

	assert(ida_is_empty(&ida));



	ida_check_leaf();

	ida_check_max();

	ida_check_conv();

	ida_check_random();