On Mon, 23 Apr 2018 12:32:32 +0200 Petr Mladek <pmladek@xxxxxxxx> wrote: > > Really? > > > > > > console_trylock_spinning(); /* console_owner now equals current */ > > No, console_trylock_spinning() does not modify console_owner. The > handshake is done using console_waiter variable. Ug, you're right. Somehow when I looked at where console_owner was set "console_lock_spinning_enabled" I saw it as "console_trylock_spinning". This is what I get when I'm trying to follow three threads at the same time :-/ > > console_owner is really set only between: > > console_lock_spinning_enable() > console_lock_spinning_disable_and_check() > > and this entire section is called with interrupts disabled. OK, I agree with you now. Although, one hour may still be too long. -- Steve
