linux-kernel - Re: [PATCH for-v3.7 2/2] slub: optimize kmalloc* inlining for GFP

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Message-ID: <0000013a88e2e9dc-9f72abd3-9a31-454c-b70b-9937ba54c0ee-000000@email.amazonses.com>
Date:	Mon, 22 Oct 2012 14:31:43 +0000
From:	Christoph Lameter <cl@...ux.com>
To:	Joonsoo Kim <js1304@...il.com>
cc:	Pekka Enberg <penberg@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH for-v3.7 2/2] slub: optimize kmalloc* inlining for
 GFP_DMA

On Sun, 21 Oct 2012, Joonsoo Kim wrote:

> kmalloc() and kmalloc_node() of the SLUB isn't inlined when @flags = __GFP_DMA.
> This patch optimize this case,
> so when @flags = __GFP_DMA, it will be inlined into generic code.

__GFP_DMA is a rarely used flag for kmalloc allocators and so far it was
not considered that it is worth to directly support it in the inlining
code.


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