linux-kernel - Re: [PATCH] lazy freeing of memory through MADV

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Message-ID: <462D91EA.7030003@redhat.com>
Date:	Tue, 24 Apr 2007 01:13:14 -0400
From:	Rik van Riel <riel@...hat.com>
To:	Paul Mackerras <paulus@...ba.org>
CC:	Nick Piggin <nickpiggin@...oo.com.au>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>, shak <dshaks@...hat.com>,
	jakub@...hat.com, drepper@...hat.com
Subject: Re: [PATCH] lazy freeing of memory through MADV_FREE

Paul Mackerras wrote:
> Rik van Riel writes:
> 
>> I guess we'll need to call tlb_remove_tlb_entry() inside the
>> MADV_FREE code to keep powerpc happy.
> 
> I don't see why; once ptep_test_and_clear_young has returned, the
> entry in the hash table has already been removed. 

OK, so this one won't be necessary. Good to know that.

Andrew, it looks like things won't be that bad :)

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