linux-kernel - Re: [patch,v3 04/10] scsi: allocate scsi_cmnd-s from the device's local numa node

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Message-ID: <509E178B.6090601@acm.org>
Date:	Sat, 10 Nov 2012 09:59:55 +0100
From:	Bart Van Assche <bvanassche@....org>
To:	Jeff Moyer <jmoyer@...hat.com>
CC:	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
	"James E.J. Bottomley" <JBottomley@...allels.com>
Subject: Re: [patch,v3 04/10] scsi: allocate scsi_cmnd-s from the device's
 local numa node

On 11/09/12 20:18, Jeff Moyer wrote:
> -	cmd = kmem_cache_zalloc(pool->cmd_slab, gfp_mask | pool->gfp_mask);
> +	cmd = kmem_cache_alloc_node(pool->cmd_slab,
> +				    gfp_mask | pool->gfp_mask | __GFP_ZERO,
> +				    node);

Hello Jeff,

Is it necessary to add __GFP_ZERO here ? And if so, why ?

Thanks,

Bart.
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