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test_ida: Move ida_check_max 

Convert to new API and move to kernel space.

Signed-off-by: Matthew Wilcox <willy@infradead.org>
This commit is contained in:
Matthew Wilcox 2018-06-18 17:25:20 -04:00
parent 0a3856392c
commit 161b47e31f
2 changed files with 23 additions and 28 deletions
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23
lib/test_ida.c
View File

@ -47,6 +47,28 @@ static void ida_check_leaf(struct ida *ida, unsigned int base)
IDA_BUG_ON(ida, !ida_is_empty(ida));
}
/*
* Check allocations up to and slightly above the maximum allowed (2^31-1) ID.
* Allocating up to 2^31-1 should succeed, and then allocating the next one
* should fail.
*/
static void ida_check_max(struct ida *ida)
{
unsigned long i, j;
for (j = 1; j < 65537; j *= 2) {
unsigned long base = (1UL << 31) - j;
for (i = 0; i < j; i++) {
IDA_BUG_ON(ida, ida_alloc_min(ida, base, GFP_KERNEL) !=
base + i);
}
IDA_BUG_ON(ida, ida_alloc_min(ida, base, GFP_KERNEL) !=
-ENOSPC);
ida_destroy(ida);
IDA_BUG_ON(ida, !ida_is_empty(ida));
}
}
static int ida_checks(void)
{
DEFINE_IDA(ida);
@ -55,6 +77,7 @@ static int ida_checks(void)
ida_check_leaf(&ida, 0);
ida_check_leaf(&ida, 1024);
ida_check_leaf(&ida, 1024 * 64);
ida_check_max(&ida);
printk("IDA: %u of %u tests passed\n", tests_passed, tests_run);
return (tests_run != tests_passed) ? 0 : -EINVAL;

28
tools/testing/radix-tree/idr-test.c
View File

@ -396,33 +396,6 @@ void ida_check_conv(void)
ida_destroy(&ida);
}
/*
* Check allocations up to and slightly above the maximum allowed (2^31-1) ID.
* Allocating up to 2^31-1 should succeed, and then allocating the next one
* should fail.
*/
void ida_check_max(void)
{
DEFINE_IDA(ida);
int id, err;
unsigned long i, j;
for (j = 1; j < 65537; j *= 2) {
unsigned long base = (1UL << 31) - j;
for (i = 0; i < j; i++) {
assert(ida_pre_get(&ida, GFP_KERNEL));
assert(!ida_get_new_above(&ida, base, &id));
assert(id == base + i);
}
assert(ida_pre_get(&ida, GFP_KERNEL));
err = ida_get_new_above(&ida, base, &id);
assert(err == -ENOSPC);
ida_destroy(&ida);
assert(ida_is_empty(&ida));
rcu_barrier();
}
}
void ida_check_random(void)
{
DEFINE_IDA(ida);
@ -534,7 +507,6 @@ void user_ida_checks(void)
ida_destroy(&ida);
assert(ida_is_empty(&ida));
ida_check_max();
ida_check_conv();
ida_check_random();
ida_simple_get_remove_test();