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idr test suite: Improve reporting from idr_find_test_1 

Instead of just reporting an assertion failure, report enough information
that we can start diagnosing exactly went wrong.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2021-04-01 07:50:42 -04:00
parent 094ffbd1d8
commit 2c7e57a027
1 changed files with 10 additions and 1 deletions
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11
tools/testing/radix-tree/idr-test.c
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@ -296,6 +296,10 @@ static void *idr_throbber(void *arg)
return NULL;
}
/*
* There are always either 1 or 2 objects in the IDR. If we find nothing,
* or we find something at an ID we didn't expect, that's a bug.
*/
void idr_find_test_1(int anchor_id, int throbber_id)
{
pthread_t throbber;
@ -311,7 +315,12 @@ void idr_find_test_1(int anchor_id, int throbber_id)
int id = 0;
void *entry = idr_get_next(&find_idr, &id);
rcu_read_unlock();
BUG_ON(entry != xa_mk_value(id));
if ((id != anchor_id && id != throbber_id) ||
entry != xa_mk_value(id)) {
printf("%s(%d, %d): %p at %d\n", __func__, anchor_id,
throbber_id, entry, id);
abort();
}
rcu_read_lock();
} while (time(NULL) < start + 11);
rcu_read_unlock();