linux-kernel - Re: [PATCH/RFC] remove frv usage of flush_tlb

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Message-Id: <1185539874.5495.225.camel@localhost.localdomain>
Date:	Fri, 27 Jul 2007 22:37:54 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	David Howells <dhowells@...hat.com>
Cc:	linux-mm <linux-mm@...ck.org>,
	Linux Kernel list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH/RFC] remove frv usage of flush_tlb_pgtables()

On Fri, 2007-07-27 at 10:43 +0100, David Howells wrote:
> > frv is the last user in the tree of that dubious hook, and it's my
> > understanding that it's not even needed. It's only called by
> memory.c
> > free_pgd_range() which is always called within an mmu_gather, and
> > tlb_flush() on frv will do a flush_tlb_mm(), which from my reading
> > of the code, seems to do what flush_tlb_ptables() does, which is
> > to clear the cached PGE.
> 
> Yeah...  I hadn't got around to killing myself yet.

Ahem... hopefully you won't get around to it any time soon :-)

Cheers,
Ben.


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