linux-kernel - RE: [PATCH] [scsi] Remove __GFP

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Message-ID: <Pine.LNX.4.64.0705240958380.28086@schroedinger.engr.sgi.com>
Date:	Thu, 24 May 2007 09:59:01 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	"Salyzyn, Mark" <mark_salyzyn@...ptec.com>
cc:	Aubrey Li <aubreylee@...il.com>, Bernhard Walle <bwalle@...e.de>,
	linux-scsi@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org,
	James Bottomley <James.Bottomley@...eleye.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: RE: [PATCH] [scsi] Remove __GFP_DMA

On Thu, 24 May 2007, Salyzyn, Mark wrote:

> So, is the sequence:
> 
> 	p = kmalloc(upsg->sg[i].count,GFP_KERNEL);
> 	. . .
> 	addr = pci_map_single(dev->pdev, p, upsg->sg[i].count,
> data_dir);
> 
> Going to ensure that we have a 31 bit (not 32 bit) physical address?

Only if you have less than 2G of memory. So no.

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