From: Andrew Morton <akpm@linux-foundation.org>
To: Hugh Dickins <hughd@google.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>,
Ingo Molnar <mingo@elte.hu>,
Linus Torvalds <torvalds@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
linux-kernel@vger.kernel.org, efault@gmx.de,
Arne Jansen <lists@die-jansens.de>
Subject: Re: [PATCH 1/3] printk: Release console_sem after logbuf_lock
Date: Thu, 9 Jun 2011 17:08:04 -0700 [thread overview]
Message-ID: <20110609170804.1b76e853.akpm@linux-foundation.org> (raw)
In-Reply-To: <alpine.LSU.2.00.1106091655560.2710@sister.anvils>
On Thu, 9 Jun 2011 16:57:29 -0700 (PDT)
Hugh Dickins <hughd@google.com> wrote:
> Does your mail below stir any useful memories?
Thanks. I did have the email, but it didn't match any of my grep
patterns.
> Some notes:
Stupid thing doesn't explain the magical locking though :( I'm 99.9%
sure that putting an up() inside a spinlock_irq()ed region was
deliberate.
> - Being heartily sick of reverse-engineering interface information
> from implementations, I have gratuitously added comments in several
> random parts of the kernel. Shoot me.
hah.
next prev parent reply other threads:[~2011-06-10 0:08 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-09 13:06 [PATCH 0/3] printk: Remove lockdep_off() and wakeups Peter Zijlstra
2011-06-09 13:06 ` [PATCH 1/3] printk: Release console_sem after logbuf_lock Peter Zijlstra
2011-06-09 20:06 ` Andrew Morton
2011-06-09 20:27 ` Ingo Molnar
2011-06-09 20:54 ` Peter Zijlstra
2011-06-09 21:07 ` Andrew Morton
2011-06-09 23:57 ` Hugh Dickins
2011-06-10 0:08 ` Andrew Morton [this message]
2011-06-10 9:33 ` Ingo Molnar
2011-06-10 9:40 ` Peter Zijlstra
2011-06-10 9:42 ` Peter Zijlstra
2011-06-10 11:28 ` Peter Zijlstra
2011-06-10 12:30 ` Peter Zijlstra
2011-06-10 12:30 ` Peter Zijlstra
2011-06-10 12:34 ` Ingo Molnar
2011-06-10 12:34 ` Ingo Molnar
2011-06-10 12:41 ` Peter Zijlstra
2011-06-10 12:41 ` Peter Zijlstra
2011-06-10 12:42 ` Peter Zijlstra
2011-06-10 12:42 ` Peter Zijlstra
2011-06-23 19:03 ` Pavel Machek
2011-06-10 9:30 ` Ingo Molnar
2011-06-10 10:15 ` Peter Zijlstra
2011-06-09 13:06 ` [PATCH 2/3] printk, lockdep: Remove lockdep_off() usage Peter Zijlstra
2011-06-10 13:23 ` Peter Zijlstra
2011-06-09 13:06 ` [PATCH 3/3] printk: Avoid all wakeups from printk Peter Zijlstra
2011-06-09 13:32 ` Ingo Molnar
2011-06-09 13:40 ` Peter Zijlstra
2011-06-09 13:55 ` Ingo Molnar
2011-06-09 14:06 ` Peter Zijlstra
2011-06-09 14:19 ` Ingo Molnar
2011-06-09 14:23 ` Peter Zijlstra
2011-06-09 15:47 ` Linus Torvalds
2011-06-09 15:51 ` Ingo Molnar
2011-06-09 16:25 ` Peter Zijlstra
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