From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
To: Christoph Lameter <cl@linux.com>
Cc: akpm@linuxfoundation.org, rostedt@goodmis.org,
linux-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>,
linux-mm@kvack.org, penberg@kernel.org, iamjoonsoo@lge.com
Subject: Re: [RFC 0/4] [RFC] slub: Fastpath optimization (especially for RT)
Date: Mon, 27 Oct 2014 16:54:26 +0900 [thread overview]
Message-ID: <20141027075426.GE23379@js1304-P5Q-DELUXE> (raw)
In-Reply-To: <alpine.DEB.2.11.1410240901020.26767@gentwo.org>
On Fri, Oct 24, 2014 at 09:02:18AM -0500, Christoph Lameter wrote:
> On Fri, 24 Oct 2014, Joonsoo Kim wrote:
>
> > In this case, object from cpu1's cpu_cache should be
> > different with cpu0's, so allocation would be failed.
>
> That is true for most object pointers unless the value is NULL. Which it
> can be. But if this is the only case then the second patch + your approach
> would work too.
Indeed... I missed the null value case.
Your second patch + mine would fix that situation, but, I need more
thinking. :)
Thanks.
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next prev parent reply other threads:[~2014-10-27 7:53 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-22 15:55 Christoph Lameter
2014-10-22 15:55 ` [RFC 1/4] slub: Remove __slab_alloc code duplication Christoph Lameter
2014-10-22 18:04 ` Thomas Gleixner
2014-10-22 18:27 ` Christoph Lameter
2014-10-22 15:55 ` [RFC 2/4] slub: Use end_token instead of NULL to terminate freelists Christoph Lameter
2014-10-22 15:55 ` [RFC 3/4] slub: Drop ->page field from kmem_cache_cpu Christoph Lameter
2014-10-22 15:55 ` [RFC 4/4] slub: Remove preemption disable/enable from fastpath Christoph Lameter
2014-10-23 8:09 ` [RFC 0/4] [RFC] slub: Fastpath optimization (especially for RT) Joonsoo Kim
2014-10-23 14:18 ` Christoph Lameter
2014-10-24 4:56 ` Joonsoo Kim
2014-10-24 14:02 ` Christoph Lameter
2014-10-27 7:54 ` Joonsoo Kim [this message]
2014-10-24 14:41 ` Christoph Lameter
2014-10-27 7:58 ` Joonsoo Kim
2014-10-27 13:53 ` Christoph Lameter
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