linux-kernel - Re: [RFC v2] percpu: Add a separate function to merge free areas

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Message-ID: <alpine.DEB.2.11.1412041514250.14832@gentwo.org>
Date:	Thu, 4 Dec 2014 15:15:27 -0600 (CST)
From:	Christoph Lameter <cl@...ux.com>
To:	Al Viro <viro@...IV.linux.org.uk>
cc:	Leonard Crestez <lcrestez@...acom.com>, Tejun Heo <tj@...nel.org>,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Sorin Dumitru <sdumitru@...acom.com>
Subject: Re: [RFC v2] percpu: Add a separate function to merge free areas

On Thu, 4 Dec 2014, Al Viro wrote:

> ... except that somebody has not known that and took refcounts on e.g.
> vfsmounts into percpu.  With massive amounts of hilarity once docker folks
> started to test the workloads that created/destroyed those in large amounts.

Well, vfsmounts being a performance issue is a bit weird and unexpected.

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