netdev - Re: [PATCH net-next] mlx4: support __GFP

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Date:   Thu, 19 Jan 2017 23:36:34 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     eric.dumazet@...il.com
Cc:     netdev@...r.kernel.org, khlebnikov@...dex-team.ru,
        tariqt@...lanox.com
Subject: Re: [PATCH net-next] mlx4: support __GFP_MEMALLOC for rx

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Tue, 17 Jan 2017 20:14:10 -0800

> From: Eric Dumazet <edumazet@...gle.com>
> 
> Commit 04aeb56a1732 ("net/mlx4_en: allocate non 0-order pages for RX
> ring with __GFP_NOMEMALLOC") added code that appears to be not needed at
> that time, since mlx4 never used __GFP_MEMALLOC allocations anyway.
> 
> As using memory reserves is a must in some situations (swap over NFS or
> iSCSI), this patch adds this flag.
> 
> Note that this driver does not reuse pages (yet) so we do not have to
> add anything else.
> 
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Applied, thanks Eric.