On Mon, Feb 01, 2021 at 10:55:47PM -0800, Chris Goldsworthy wrote: > @@ -1289,6 +1289,8 @@ static inline void check_irqs_on(void) > #endif > } > > +bool bh_migration_done = true; What protects this global variable? Or is there some subtle reason it doesn't need protection, in which case, please put that in a comment.