From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Justin Pryzby <justinpryzby@users.sourceforge.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.5isms
Date: Sat, 01 Jan 2005 13:34:29 +1100 [thread overview]
Message-ID: <41D60C35.9000503@yahoo.com.au> (raw)
In-Reply-To: <20041231230624.GA29411@andromeda>
Justin Pryzby wrote:
> Hi all, I have more 2.5isms for the list. ./fs/binfmt_elf.c:
>
> #ifdef CONFIG_X86_HT
> /*
> * In some cases (e.g. Hyper-Threading), we want to avoid L1
> * evictions by the processes running on the same package. One
> * thing we can do is to shuffle the initial stack for them.
> *
> * The conditionals here are unneeded, but kept in to make the
> * code behaviour the same as pre change unless we have
> * hyperthreaded processors. This should be cleaned up
> * before 2.6
> */
>
> if (smp_num_siblings > 1)
> STACK_ALLOC(p, ((current->pid % 64) << 7));
> #endif
>
Can we just kill it? Or do it unconditionally? Or maybe better yet, wrap
it properly in arch code?
next prev parent reply other threads:[~2005-01-01 2:34 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-31 23:06 2.5isms Justin Pryzby
2005-01-01 2:34 ` Nick Piggin [this message]
2005-01-01 8:40 ` 2.5isms Arjan van de Ven
2005-01-01 9:13 ` 2.5isms Andi Kleen
2005-01-02 0:43 ` 2.5isms Nick Piggin
2005-01-02 8:58 ` 2.5isms Arjan van de Ven
2005-01-03 0:49 ` 2.5isms Nick Piggin
2005-01-02 12:04 ` 2.5isms Andi Kleen
2005-01-03 0:44 ` 2.5isms Nick Piggin
-- strict thread matches above, loose matches on Subject: below --
2003-07-03 20:01 "Will be removed in 2.4" Justin Pryzby
2003-12-30 21:30 ` 2.5isms Justin Pryzby
2004-01-03 15:18 ` 2.5isms Pavel Machek
2004-01-07 7:28 ` 2.5isms Justin Pryzby
2004-03-29 15:40 ` 2.5isms Pavel Machek
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