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test_ida: Move ida_check_max

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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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28
tools/testing/radix-tree/idr-test.c
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@@ -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();