netdev - Re: [RFC] net: use atomic allocation for order-3 page allocation

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Message-ID: <1434059786.27504.58.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Thu, 11 Jun 2015 14:56:26 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Shaohua Li <shli@...com>
Cc:	Chris Mason <clm@...com>, netdev@...r.kernel.org,
	davem@...emloft.net, Kernel-team@...com,
	Eric Dumazet <edumazet@...gle.com>,
	David Rientjes <rientjes@...gle.com>, linux-mm@...ck.org
Subject: Re: [RFC] net: use atomic allocation for order-3 page allocation

On Thu, 2015-06-11 at 14:45 -0700, Shaohua Li wrote:

> This is exactly what the patch try to do. Atomic 32k allocation will
> fail with memory pressure, kswapd is waken up to do compaction and we
> fallback to 4k.

Read your changelog, then read what you just wrote.

Your changelog  said :

'compaction will not be triggered and we will fallback to order-0
immediately.'

Now you tell me that compaction is started.

What is the truth ?

Please make sure changelog is precise, this would avoid many mails.


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