From: Peter Zijlstra <peterz@infradead.org>
To: Zhao Yakui <yakui.zhao@intel.com>
Cc: Daniel Walker <dwalker@mvista.com>,
linux-acpi@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
len.brown@intel.com, ak@linux.intel.com
Subject: Re: [PATCH 1/3] acpi: add real mutex function calls
Date: Mon, 21 Jul 2008 11:14:58 +0200 [thread overview]
Message-ID: <1216631698.7257.29.camel@twins> (raw)
In-Reply-To: <1216605078.4135.23.camel@yakui_zhao.sh.intel.com>
On Mon, 2008-07-21 at 09:51 +0800, Zhao Yakui wrote:
> On Sat, 2008-07-19 at 11:16 -0700, Daniel Walker wrote:
> > Instead of re-using semaphores for the mutex operation, I've
> > added usage of the kernel mutex for the os mutex implementation.
> >
> What is the advantage that the kernel mutex is used for the ACPI mutex
> implementation instead of using semaphore?
> And it seems that too much ACPICA source code is touched.
You get help from lockdep, and also our goal is to fully eradicate
semaphore usage.
next prev parent reply other threads:[~2008-07-21 9:15 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-19 18:16 [PATCH 0/3] acpi: acpi: sem out, mutex/completion in Daniel Walker
2008-07-19 18:16 ` [PATCH 1/3] acpi: add real mutex function calls Daniel Walker
2008-07-19 18:16 ` [PATCH 2/3] acpi: semaphore removal Daniel Walker
2008-07-19 18:16 ` [PATCH 3/3] Add lockdep integration for the ACPI mutex usage Daniel Walker
2008-07-20 8:15 ` [PATCH 2/3] acpi: semaphore removal Dave Chinner
2008-07-20 14:49 ` Daniel Walker
2008-07-21 1:51 ` [PATCH 1/3] acpi: add real mutex function calls Zhao Yakui
2008-07-21 9:14 ` Peter Zijlstra [this message]
2008-07-21 9:17 ` Andi Kleen
2008-07-21 9:24 ` Peter Zijlstra
2008-07-21 19:15 ` Andi Kleen
2008-07-21 19:33 ` Peter Zijlstra
2008-07-21 19:55 ` Matthew Wilcox
2008-07-21 20:22 ` Daniel Walker
2008-07-21 20:00 ` Andi Kleen
2008-07-21 20:38 ` Daniel Walker
2008-07-21 13:59 ` Daniel Walker
2008-07-21 13:56 ` Daniel Walker
2008-07-21 19:20 ` Andi Kleen
2008-07-21 19:39 ` Daniel Walker
2008-07-23 22:14 ` Moore, Robert
2008-07-24 12:44 ` Daniel Walker
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