From: Shaohua Li <shaohua.li@intel.com>
To: Tejun Heo <htejun@gmail.com>
Cc: lkml <linux-kernel@vger.kernel.org>,
"hpa@zytor.com" <hpa@zytor.com>,
Andrew Morton <akpm@linux-foundation.org>,
"sam@ravnborg.org" <sam@ravnborg.org>,
"eric.dumazet@gmail.com" <eric.dumazet@gmail.com>
Subject: Re: [patch 2/3] add new macros to make percpu readmostly section correctly align
Date: Tue, 14 Dec 2010 09:08:44 +0800 [thread overview]
Message-ID: <1292288924.2323.458.camel@sli10-conroe> (raw)
In-Reply-To: <4D05EBA4.60202@gmail.com>
On Mon, 2010-12-13 at 17:47 +0800, Tejun Heo wrote:
> Hello,
>
> On 12/13/2010 01:41 AM, Shaohua Li wrote:
> >> Why add another set of macros? Can't you just make the default one
> >> aligned?
> > how to do it without changing all arch code? There isn't cache line size
> > macro for all arch which could be used in vmlinux.lds.h, IIRC.
>
> Can't we get around that with some ifdefferies? And even if we'll
> have to change lds on every arch, I think we better do it that way.
I don't understand what you mean. defining a cachine line size macro for
all archs? There is such macro, but using it in vmlinux.ld.h always
report error. There is some other defines which can't be included in a
link script.
> It's not like the problem exists only on x86, right?
yes, though currently only x86 has it.
Thanks,
Shaohua
next prev parent reply other threads:[~2010-12-14 1:08 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-02 2:02 Shaohua Li
2010-12-10 15:14 ` Tejun Heo
2010-12-13 0:41 ` Shaohua Li
2010-12-13 9:47 ` Tejun Heo
2010-12-14 1:08 ` Shaohua Li [this message]
2010-12-14 9:58 ` Tejun Heo
2010-12-15 1:57 ` Shaohua Li
2010-12-15 14:08 ` Tejun Heo
2010-12-15 14:49 ` Tejun Heo
2010-12-16 0:55 ` Shaohua Li
2010-12-16 0:53 ` Shaohua Li
2010-12-16 5:46 ` Sam Ravnborg
2010-12-16 5:56 ` Shaohua Li
2010-12-16 9:50 ` Tejun Heo
2010-12-20 1:28 ` Shaohua Li
2010-12-20 15:55 ` Tejun Heo
2010-12-23 2:38 ` Shaohua Li
2010-12-27 12:14 ` Tejun Heo
2010-12-28 0:26 ` Shaohua Li
2010-12-28 11:13 ` Tejun Heo
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