linux-kernel - Re: [PATCH 1/4] net/skbuff: don't waste memory reserves

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Message-Id: <20190418.115639.4353812313618266.davem@davemloft.net>
Date:   Thu, 18 Apr 2019 11:56:39 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     eric.dumazet@...il.com
Cc:     aryabinin@...tuozzo.com, edumazet@...gle.com,
        mgorman@...hsingularity.net, willemb@...gle.com, fw@...len.de,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH 1/4] net/skbuff: don't waste memory reserves

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Thu, 18 Apr 2019 11:55:16 -0700

> AFAIK, drivers allocate skbs way before a frame is actually received,
> (at RX ring buffer initialization or refill)
> 
> So sk_memalloc_socks() might be false at that time, but true later.

This is exactly what I was going to say too.