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Commit 8ab8ba38 authored by Matthew Wilcox's avatar Matthew Wilcox
Browse files

ida: Start new test_ida module 



Start transitioning the IDA tests into kernel space.  Framework heavily
cribbed from test_xarray.c.

Signed-off-by: default avatarMatthew Wilcox <willy@infradead.org>
parent 31ff0cee

lib/Kconfig.debug

+3 −0
Original line number Diff line number Diff line
@@ -1827,6 +1827,9 @@ config TEST_HASH 
	  This is intended to help people writing architecture-specific

	  optimized versions.  If unsure, say N.



config TEST_IDA

	tristate "Perform selftest on IDA functions"



config TEST_PARMAN

	tristate "Perform selftest on priority array manager"

	default n

lib/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -50,6 +50,7 @@ obj-$(CONFIG_TEST_BPF) += test_bpf.o 
obj-$(CONFIG_TEST_FIRMWARE) += test_firmware.o

obj-$(CONFIG_TEST_SYSCTL) += test_sysctl.o

obj-$(CONFIG_TEST_HASH) += test_hash.o test_siphash.o

obj-$(CONFIG_TEST_IDA) += test_ida.o

obj-$(CONFIG_TEST_KASAN) += test_kasan.o

CFLAGS_test_kasan.o += -fno-builtin

obj-$(CONFIG_TEST_UBSAN) += test_ubsan.o

lib/test_ida.c

0 → 100644
+45 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0+

/*

 * test_ida.c: Test the IDA API

 * Copyright (c) 2016-2018 Microsoft Corporation

 * Copyright (c) 2018 Oracle Corporation

 * Author: Matthew Wilcox <willy@infradead.org>

 */



#include <linux/idr.h>

#include <linux/module.h>



static unsigned int tests_run;

static unsigned int tests_passed;



#ifdef __KERNEL__

void ida_dump(struct ida *ida) { }

#endif

#define IDA_BUG_ON(ida, x) do {						\

	tests_run++;							\

	if (x) {							\

		ida_dump(ida);						\

		dump_stack();						\

	} else {							\

		tests_passed++;						\

	}								\

} while (0)



static int ida_checks(void)

{

	DEFINE_IDA(ida);



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



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

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

}



static void ida_exit(void)

{

}



module_init(ida_checks);

module_exit(ida_exit);

MODULE_AUTHOR("Matthew Wilcox <willy@infradead.org>");

MODULE_LICENSE("GPL");

tools/testing/radix-tree/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ targets: generated/map-shift.h $(TARGETS) 


main:	$(OFILES)



idr-test.o: ../../../lib/test_ida.c

idr-test: idr-test.o $(CORE_OFILES)



multiorder: multiorder.o $(CORE_OFILES)

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

+19 −3
Original line number Diff line number Diff line
@@ -309,6 +309,15 @@ void idr_checks(void) 
	idr_u32_test(0);

}



#define module_init(x)

#define module_exit(x)

#define MODULE_AUTHOR(x)

#define MODULE_LICENSE(x)

#define dump_stack()    assert(0)

void ida_dump(struct ida *);



#include "../../../lib/test_ida.c"



/*

 * Check that we get the correct error when we run out of memory doing

 * allocations.  To ensure we run out of memory, just "forget" to preload.
@@ -488,7 +497,7 @@ void ida_simple_get_remove_test(void) 
	ida_destroy(&ida);

}



void ida_checks(void)

void user_ida_checks(void)

{

	DEFINE_IDA(ida);

	int id;
@@ -582,12 +591,19 @@ void ida_thread_tests(void) 
		pthread_join(threads[i], NULL);

}



void ida_tests(void)

{

	user_ida_checks();

	ida_checks();

	ida_exit();

	ida_thread_tests();

}



int __weak main(void)

{

	radix_tree_init();

	idr_checks();

	ida_checks();

	ida_thread_tests();

	ida_tests();

	radix_tree_cpu_dead(1);

	rcu_barrier();

	if (nr_allocated)