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Subject: Re: [PATCH -v7][RFC]: mutex: implement adaptive spinning
From: Harvey Harrison <harvey.harrison@gmail.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
       "H. Peter Anvin" <hpa@zytor.com>, Andi Kleen <andi@firstfloor.org>,
       Chris Mason <chris.mason@oracle.com>,
       Peter Zijlstra <peterz@infradead.org>,
       Steven Rostedt <rostedt@goodmis.org>, paulmck@linux.vnet.ibm.com,
       Gregory Haskins <ghaskins@novell.com>, Matthew Wilcox <matthew@wil.cx>,
       Andrew Morton <akpm@linux-foundation.org>,
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       Peter Morreale <pmorreale@novell.com>,
       Sven Dietrich <SDietrich@novell.com>
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On Sat, 2009-01-10 at 02:01 +0100, Ingo Molnar wrote:
> * Linus Torvalds <torvalds@linux-foundation.org> wrote:

>  - Headers could probably go back to 'extern inline' again. At not small 
>    expense - we just finished moving to 'static inline'. We'd need to 
>    guarantee a library instantiation for every header include file - this 
>    is an additional mechanism with additional introduction complexities 
>    and an ongoing maintenance cost.

Puzzled?  What benefit is there to going back to extern inline in headers?

Harvey

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