netdev - Re: [PATCH 0/2] forcedeth: recv cache support

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Message-Id: <20190708.152352.710464914281100209.davem@davemloft.net>
Date:   Mon, 08 Jul 2019 15:23:52 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     yanjun.zhu@...cle.com
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH 0/2] forcedeth: recv cache support 

From: Zhu Yanjun <yanjun.zhu@...cle.com>
Date: Fri,  5 Jul 2019 02:19:26 -0400

> This recv cache is to make NIC work steadily when the system memory is
> not enough.

The system is supposed to hold onto enough atomic memory to absorb all
reasonable situations like this.

If anything a solution to this problem belongs generically somewhere,
not in a driver.  And furthermore looping over an allocation attempt
with a delay is strongly discouraged.