On Thu 2021-07-15 21:39:56, John Ogness wrote: > With @logbuf_lock removed, the high level printk functions for > storing messages are lockless. Messages can be stored from any > context, so there is no need for the NMI and safe buffers anymore. > Remove the NMI and safe buffers. > > Although the safe buffers are removed, the NMI and safe context > tracking is still in place. In these contexts, store the message > immediately but still use irq_work to defer the console printing. > > Since printk recursion tracking is in place, safe context tracking > for most of printk is not needed. Remove it. Only safe context > tracking relating to the console and console_owner locks is left > in place. This is because the console and console_owner locks are > needed for the actual printing. > > Signed-off-by: John Ogness <john.ogn...@linutronix.de>
Reviewed-by: Petr Mladek <pmla...@suse.com> Best Regards, Petr
