Re: [patch 4/4] vunmap: Fix racy use of rcu_head

[Christoph Lameter]

On Tue, 6 Oct 2009, Mathieu Desnoyers wrote:

> Simplest fix: directly kfree the data structure rather than doing it lazily.

The delay is necessary as far as I can tell for performance reasons. But
Nick was the last one fiddling around with the subsystem as far as I
remember. CCing him. May be he has a minute to think about a fix that
preserved performance.

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