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

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Message-ID: <21776.1185529438@redhat.com>
Date:	Fri, 27 Jul 2007 10:43:58 +0100
From:	David Howells <dhowells@...hat.com>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
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()

Benjamin Herrenschmidt <benh@...nel.crashing.org> 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.

Acked-By: David Howells <dhowells@...hat.com>
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