Patch review expectations

When should one commit one's own patches without review, versus waiting 
for them to be reviewed?

I've generally been committing Python-3-related patches without expecting 
review for them.  But I also have some other bug-fix patches attached to 
tracker issues without review (since 2014 in one case).  Should I just 
commit these (with appropriate CHANGES.txt updates) if no concerns have 
been raised about them?

-- 
Joseph S. Myers
[email protected]