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Date: Tue, 30 Nov 2004 16:18:35 -0800 (PST)
From: Linus Torvalds <torvalds@osdl.org>
To: David Woodhouse <dwmw2@infradead.org>
cc: Alexandre Oliva <aoliva@redhat.com>, dhowells <dhowells@redhat.com>,
       Paul Mackerras <paulus@samba.org>, Greg KH <greg@kroah.com>,
       Matthew Wilcox <matthew@wil.cx>, hch@infradead.org,
       Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [RFC] Splitting kernel headers and deprecating __KERNEL__
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On Tue, 30 Nov 2004, Linus Torvalds wrote:
> 
> Even atomic.h. I could well imagine that somebody includes atomic.h just 
> to get the thread-safe updates for some architectures. For example, 
> asm-alpha/atomic.h does it right, and I would not be at all surprised if 
> somebody had noticed.

In fact, this is not entirely theoretical. I know people _have_ noticed, 
because I've gotten queries from some projects that wanted to copy the 
definitions for their alpha port. I only got those queries because my name 
is on the file, and those people wanted to actually copy them, not just 
include the header file. I don't know _how_ many people decided to just 
do the #include.

There are probably more people familiar with the kernel source tree than 
with GLIB which is probably the preferred way to do those things these 
days. And a few years ago that choice wasn't even there. 

		Linus