From: Christoph Lameter <cl@linux.com>
To: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Pekka Enberg <penberg@kernel.org>,
David Rientjes <rientjes@google.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Jesper Dangaard Brouer <brouer@redhat.com>,
rostedt@goodmis.org, Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH 2/2] mm: don't use compound_head() in virt_to_head_page()
Date: Mon, 5 Jan 2015 08:53:20 -0600 (CST) [thread overview]
Message-ID: <alpine.DEB.2.11.1501050852380.24090@gentwo.org> (raw)
In-Reply-To: <1420421765-3209-2-git-send-email-iamjoonsoo.kim@lge.com>
On Mon, 5 Jan 2015, Joonsoo Kim wrote:
> This patch implements compound_head_fast() which is similar with
> compound_head() except tail flag race handling. And then,
> virt_to_head_page() uses this optimized function to improve performance.
Yeah that is how it was before and how it should be
Acked-by: Christoph Lameter <cl@linux.com>
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next prev parent reply other threads:[~2015-01-05 14:53 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-05 1:36 [PATCH 1/2] mm/slub: optimize alloc/free fastpath by removing preemption on/off Joonsoo Kim
2015-01-05 1:36 ` [PATCH 2/2] mm: don't use compound_head() in virt_to_head_page() Joonsoo Kim
2015-01-05 14:53 ` Christoph Lameter [this message]
2015-01-05 14:52 ` [PATCH 1/2] mm/slub: optimize alloc/free fastpath by removing preemption on/off Christoph Lameter
2015-01-06 3:03 ` Davidlohr Bueso
2015-01-06 8:09 ` Joonsoo Kim
2015-01-06 17:02 ` Davidlohr Bueso
2015-01-08 7:44 ` Joonsoo Kim
2015-01-09 3:34 ` Christoph Lameter
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