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Re: [PATCH] net: wireless: airo semaphore to mutex

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From: Matthew Wilcox <matthew@...>
To: Rusty Russell <rusty@...>
Cc: Michal Schmidt <mschmidt@...>, Daniel Walker <dwalker@...>, <linville@...>, <mingo@...>, <linux-kernel@...>, <linux-wireless@...>, <arjan@...>
Subject: Re: [PATCH] net: wireless: airo semaphore to mutex
Date: Monday, May 26, 2008 - 10:15 pm

On Tue, May 27, 2008 at 11:17:22AM +1000, Rusty Russell wrote:

Because mutexes have an owner.  In interrupt context, there is no owner.
This owner is used to do priority boosts as well as debugging.

-- 
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
--
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Messages in current thread:
[PATCH] net: wireless: airo semaphore to mutex, Daniel Walker, (Thu May 22, 7:21 pm)
Re: [PATCH] net: wireless: airo semaphore to mutex, Matthew Wilcox, (Tue May 27, 9:13 am)
Re: [PATCH] net: wireless: airo semaphore to mutex, Dan Williams, (Tue May 27, 9:48 am)
Re: [PATCH] net: wireless: airo semaphore to mutex, Daniel Walker, (Tue May 27, 11:08 am)
Re: [PATCH] net: wireless: airo semaphore to mutex, Matthew Wilcox, (Tue May 27, 11:34 am)
Re: [PATCH] net: wireless: airo semaphore to mutex, Daniel Walker, (Tue May 27, 12:01 pm)
Re: [PATCH] net: wireless: airo semaphore to mutex, Michal Schmidt, (Mon May 26, 1:29 pm)
Re: [PATCH] net: wireless: airo semaphore to mutex, Rusty Russell, (Mon May 26, 9:17 pm)
Re: [PATCH] net: wireless: airo semaphore to mutex, Matthew Wilcox, (Mon May 26, 10:15 pm)
Re: [PATCH] net: wireless: airo semaphore to mutex, Rusty Russell, (Tue May 27, 12:37 am)
Re: [PATCH] net: wireless: airo semaphore to mutex, Daniel Walker, (Tue May 27, 12:34 am)
Re: [PATCH] net: wireless: airo semaphore to mutex, Matthew Wilcox, (Tue May 27, 7:24 am)
Re: [PATCH] net: wireless: airo semaphore to mutex, Daniel Walker, (Mon May 26, 1:59 pm)