Commits
Steven Rostedt (VMware) committed af41acf8347
printk: Remove superfluous memory barriers from printk_safe The variable printk_safe_irq_ready is set and never cleared at system boot up, when there's only one CPU active. It is set before other CPUs come on line. Also, it is extremely unlikely that an NMI would trigger this early in boot up (which I wonder why we even have this variable at all). Also mark the printk_safe_irq_ready as read mostly, as it is set at system boot up, and never touched again. Link: http://lkml.kernel.org/r/20171011124647.7781f98f@gandalf.local.home Reviewed-by: Petr Mladek <pmladek@suse.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>