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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>
This commit is contained in:
Matthew Wilcox 2018-06-18 18:39:28 -04:00
parent 5c78b0b1eb
commit f272668deb
2 changed files with 58 additions and 66 deletions
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54
lib/test_ida.c
View File

@ -25,6 +25,58 @@ 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);

70
tools/testing/radix-tree/idr-test.c
View File

@ -364,7 +364,6 @@ void ida_check_random(void)
{
DEFINE_IDA(ida);
DECLARE_BITMAP(bitmap, 2048);
int id, err;
unsigned int i;
time_t s = time(NULL);
@ -375,15 +374,11 @@ void ida_check_random(void)
int bit = i & 2047;
if (test_bit(bit, bitmap)) {
__clear_bit(bit, bitmap);
ida_remove(&ida, bit);
ida_free(&ida, bit);
} else {
__set_bit(bit, bitmap);
do {
ida_pre_get(&ida, GFP_KERNEL);
err = ida_get_new_above(&ida, bit, &id);
} while (err == -EAGAIN);
assert(!err);
assert(id == bit);
IDA_BUG_ON(&ida, ida_alloc_min(&ida, bit, GFP_KERNEL)
!= bit);
}
}
ida_destroy(&ida);
@ -411,66 +406,9 @@ void ida_simple_get_remove_test(void)
void user_ida_checks(void)
{
DEFINE_IDA(ida);
int id;
unsigned long i;
radix_tree_cpu_dead(1);
ida_check_nomem();
for (i = 0; i < 10000; i++) {
assert(ida_pre_get(&ida, GFP_KERNEL));
assert(!ida_get_new(&ida, &id));
assert(id == i);
}
ida_remove(&ida, 20);
ida_remove(&ida, 21);
for (i = 0; i < 3; i++) {
assert(ida_pre_get(&ida, GFP_KERNEL));
assert(!ida_get_new(&ida, &id));
if (i == 2)
assert(id == 10000);
}
for (i = 0; i < 5000; i++)
ida_remove(&ida, i);
assert(ida_pre_get(&ida, GFP_KERNEL));
assert(!ida_get_new_above(&ida, 5000, &id));
assert(id == 10001);
ida_destroy(&ida);
assert(ida_is_empty(&ida));
assert(ida_pre_get(&ida, GFP_KERNEL));
assert(!ida_get_new_above(&ida, 1, &id));
assert(id == 1);
ida_remove(&ida, id);
assert(ida_is_empty(&ida));
ida_destroy(&ida);
assert(ida_is_empty(&ida));
assert(ida_pre_get(&ida, GFP_KERNEL));
assert(!ida_get_new_above(&ida, 1, &id));
ida_destroy(&ida);
assert(ida_is_empty(&ida));
assert(ida_pre_get(&ida, GFP_KERNEL));
assert(!ida_get_new_above(&ida, 1, &id));
assert(id == 1);
assert(ida_pre_get(&ida, GFP_KERNEL));
assert(!ida_get_new_above(&ida, 1025, &id));
assert(id == 1025);
assert(ida_pre_get(&ida, GFP_KERNEL));
assert(!ida_get_new_above(&ida, 10000, &id));
assert(id == 10000);
ida_remove(&ida, 1025);
ida_destroy(&ida);
assert(ida_is_empty(&ida));
ida_check_conv_user();
ida_check_random();
ida_simple_get_remove_test();