On (03/08/19 11:31), Petr Mladek wrote: > Great catch! > > I think that it is doable to guard the list using RCU. I think console_sem is more than just list lock. E.g. fb_flashcursor() - console_sem protects framebuffer from concurrent modifications. And many other examples. I think the last time we talked about it (two+ years ago) we counted 5 or 7 (don't remember exactly) different things which console_sem does. -ss
