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Message-ID: <45097767.7010405@yahoo.com.au>
Date: Fri, 15 Sep 2006 01:38:15 +1000
From: Nick Piggin <nickpiggin@...oo.com.au>
To: Nick Piggin <nickpiggin@...oo.com.au>
CC: David Howells <dhowells@...hat.com>,
Arjan van de Ven <arjan@...radead.org>,
Dong Feng <middle.fengdong@...il.com>, ak@...e.de,
Paul Mackerras <paulus@...ba.org>,
Christoph Lameter <clameter@....com>,
linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org
Subject: Re: Why Semaphore Hardware-Dependent?
Ahh, my mistake :)
Nick Piggin wrote:
> It is actually larger here.
>
> text data bss dec hex filename
> 970 0 0 970 3ca lib/rwsem-spinlock.o
> 576 0 0 576 240 kernel/spinlock.o
^^ should be:
35 0 0 35 23 kernel/rwsem.o
> =1546
>
> text data bss dec hex filename
> 1310 0 0 1310 51e lib/rwsem.o
> 193 0 0 193 c1 kernel/rwsem.o
> =1503
Well, it is still larger than the atomic_inc_return variant
after my patch.
--
SUSE Labs, Novell Inc.
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