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Date: Mon, 5 Jan 2015 08:53:20 -0600 (CST) From: Christoph Lameter <cl@...ux.com> To: Joonsoo Kim <iamjoonsoo.kim@....com> cc: Andrew Morton <akpm@...ux-foundation.org>, Pekka Enberg <penberg@...nel.org>, David Rientjes <rientjes@...gle.com>, linux-mm@...ck.org, linux-kernel@...r.kernel.org, Jesper Dangaard Brouer <brouer@...hat.com>, rostedt@...dmis.org, Thomas Gleixner <tglx@...utronix.de> Subject: Re: [PATCH 2/2] mm: don't use compound_head() in virt_to_head_page() 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@...ux.com> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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