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radix tree test suite: Register the main thread with the RCU library

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[ Upstream commit 1bb4bd266cf39fd2fa711f2d265c558b92df1119 ]

Several test runners register individual worker threads with the
RCU library, but neglect to register the main thread, which can lead
to objects being freed while the main thread is in what appears to be
an RCU critical section.

Reported-by: Chris von Recklinghausen <crecklin@redhat.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Matthew Wilcox (Oracle)
2021-03-31 14:59:19 -04:00
committed by Greg Kroah-Hartman
parent 1d2310d95f
commit edd822b692
3 changed files with 6 additions and 0 deletions
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2
tools/testing/radix-tree/idr-test.c
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@@ -577,6 +577,7 @@ void ida_tests(void)
int __weak main(void)
{
rcu_register_thread();
radix_tree_init();
idr_checks();
ida_tests();
@@ -584,5 +585,6 @@ int __weak main(void)
rcu_barrier();
if (nr_allocated)
printf("nr_allocated = %d\n", nr_allocated);
rcu_unregister_thread();
return 0;
}