lockdep/selftest: Add more recursive read related test cases
Add those four test cases:
1.
CPU1 CPU2 CPU3
============= ============= =============
write_lock(X);
write_lock(Y);
write_lock(Z);
read_lock(Y);
read_lock(Z);
read_lock(X);
deadlock.
2.
CPU1 CPU2 CPU3
============= ============= =============
write_lock(X);
read_lock(Y);
write_lock(Z);
write_lock(Y);
read_lock(Z);
read_lock(X);
deadlock.
3.
CPU1 CPU2 CPU3
============= ============= =============
write_lock(X);
read_lock(Y);
read_lock(Z);
write_lock(Y);
read_lock(Z);
write_lock(X);
not deadlock.
4.
CPU1 CPU2 CPU3
============= ============= =============
write_lock(X);
read_lock(Y);
write_lock(Z);
read_lock(Y);
read_lock(Z);
write_lock(X);
not deadlock.
Those self testcases are valuable for the development of supporting
recursive read related deadlock detection.
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
1 file changed
