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authorMatthew Wilcox <willy@infradead.org>2018-06-18 16:59:29 -0400
committerMatthew Wilcox <willy@infradead.org>2018-08-21 23:54:20 -0400
commit8ab8ba38d48867aac01812e18f48fc9173ccd400 (patch)
tree4d149499e92ea666779d91caa2a487dfc322ffba
parent31ff0ceeb266a4ac96f3fc8cebb85df862a22f92 (diff)
downloadlinux-8ab8ba38d48867aac01812e18f48fc9173ccd400.tar.bz2
ida: Start new test_ida module
Start transitioning the IDA tests into kernel space. Framework heavily cribbed from test_xarray.c. Signed-off-by: Matthew Wilcox <willy@infradead.org>
-rw-r--r--lib/Kconfig.debug3
-rw-r--r--lib/Makefile1
-rw-r--r--lib/test_ida.c45
-rw-r--r--tools/testing/radix-tree/Makefile1
-rw-r--r--tools/testing/radix-tree/idr-test.c22
-rw-r--r--tools/testing/radix-tree/main.c3
-rw-r--r--tools/testing/radix-tree/test.h3
7 files changed, 71 insertions, 7 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 8838d1158d19..2fff661d9070 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -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
diff --git a/lib/Makefile b/lib/Makefile
index 90dc5520b784..18d87ca4c949 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -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
diff --git a/lib/test_ida.c b/lib/test_ida.c
new file mode 100644
index 000000000000..8c9a0672696b
--- /dev/null
+++ b/lib/test_ida.c
@@ -0,0 +1,45 @@
+// 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");
diff --git a/tools/testing/radix-tree/Makefile b/tools/testing/radix-tree/Makefile
index da030a65d6d6..37baecc3766f 100644
--- a/tools/testing/radix-tree/Makefile
+++ b/tools/testing/radix-tree/Makefile
@@ -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)
diff --git a/tools/testing/radix-tree/idr-test.c b/tools/testing/radix-tree/idr-test.c
index ee820fcc29b0..604b51dc9b38 100644
--- a/tools/testing/radix-tree/idr-test.c
+++ b/tools/testing/radix-tree/idr-test.c
@@ -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)
diff --git a/tools/testing/radix-tree/main.c b/tools/testing/radix-tree/main.c
index 584a8732f5ce..b741686e53d6 100644
--- a/tools/testing/radix-tree/main.c
+++ b/tools/testing/radix-tree/main.c
@@ -324,7 +324,7 @@ static void single_thread_tests(bool long_run)
printv(2, "after dynamic_height_check: %d allocated, preempt %d\n",
nr_allocated, preempt_count);
idr_checks();
- ida_checks();
+ ida_tests();
rcu_barrier();
printv(2, "after idr_checks: %d allocated, preempt %d\n",
nr_allocated, preempt_count);
@@ -371,7 +371,6 @@ int main(int argc, char **argv)
iteration_test(0, 10 + 90 * long_run);
iteration_test(7, 10 + 90 * long_run);
single_thread_tests(long_run);
- ida_thread_tests();
/* Free any remaining preallocated nodes */
radix_tree_cpu_dead(0);
diff --git a/tools/testing/radix-tree/test.h b/tools/testing/radix-tree/test.h
index 31f1d9b6f506..92d901eacf49 100644
--- a/tools/testing/radix-tree/test.h
+++ b/tools/testing/radix-tree/test.h
@@ -39,8 +39,7 @@ void multiorder_checks(void);
void iteration_test(unsigned order, unsigned duration);
void benchmark(void);
void idr_checks(void);
-void ida_checks(void);
-void ida_thread_tests(void);
+void ida_tests(void);
struct item *
item_tag_set(struct radix_tree_root *root, unsigned long index, int tag);