From: Peter Zijlstra <peterz@infradead.org>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
"Ted Ts'o" <tytso@mit.edu>, Greg KH <greg@kroah.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
Ingo Molnar <mingo@elte.hu>
Subject: Re: printk() vs tty_io
Date: Thu, 15 Dec 2011 11:55:17 +0100 [thread overview]
Message-ID: <1323946517.18942.29.camel@twins> (raw)
In-Reply-To: <20111215103220.7c08498f@pyramind.ukuu.org.uk>
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.
next prev parent reply other threads:[~2011-12-15 10:56 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-13 19:33 printk() vs tty_io Peter Zijlstra
2011-12-13 23:52 ` Linus Torvalds
2011-12-14 9:38 ` Peter Zijlstra
2011-12-14 10:43 ` Alan Cox
2011-12-14 10:56 ` Peter Zijlstra
2011-12-14 14:05 ` Ted Ts'o
2011-12-14 14:23 ` Peter Zijlstra
2011-12-14 15:54 ` Linus Torvalds
2011-12-15 9:56 ` Peter Zijlstra
2011-12-15 10:32 ` Alan Cox
2011-12-15 10:55 ` Peter Zijlstra [this message]
2011-12-15 17:08 ` Linus Torvalds
2011-12-15 18:07 ` Ingo Molnar
2011-12-15 21:22 ` Alan Cox
2011-12-16 13:25 ` Peter Zijlstra
2011-12-15 19:02 ` Greg KH
2011-12-14 6:59 ` Ingo Molnar
2011-12-14 9:40 ` [PATCH] arch, early_printk: Consolidate early_printk() implementations Peter Zijlstra
2011-12-14 9:41 ` [PATCH] lockdep: Enable earlyprintk output Peter Zijlstra
2011-12-14 9:43 ` printk() vs tty_io Peter Zijlstra
2011-12-14 9:46 ` Ingo Molnar
2011-12-21 12:03 ` Stijn Devriendt
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