Re: printk() vs tty_io

From: Peter Zijlstra
Date: Thu Dec 15 2011 - 05:56:25 EST


On Thu, 2011-12-15 at 10:32 +0000, Alan Cox wrote:

> For lockdep spews do they need to be spewed synchronously - clearly it's
> good if they can be but its possible that they could be buffered ?

This wasn't about lockdep per-se, it all started with me trying to
cleanup printk()'s abuse of lockdep_off()/lockdep_on. Which then grew
into something a little bigger.

I'm fine with dropping the larger goal of making printk() work in all
but NMI context and focus on the initial cleanup.


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