From: Arjan van de Ven <arjan@infradead.org>
To: Andi Kleen <andi@firstfloor.org>
Cc: x86@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Avoid double flush in do_tlb_flush_all()
Date: Sat, 30 Aug 2008 09:01:58 -0700 [thread overview]
Message-ID: <20080830090158.072d40b3@infradead.org> (raw)
In-Reply-To: <20080830102012.GA21145@basil.nowhere.org>
On Sat, 30 Aug 2008 12:20:12 +0200
Andi Kleen <andi@firstfloor.org> wrote:
> Avoid double flush in do_tlb_flush_all()
>
> leave_mm already flushes the TLBs, so don't need to flush directly
> before that in do_flush_tlb_all(). Avoid the double flush.
but... the leave_mm won't flush the global tlbs, while
__flush_tlb_all() does, right?
sounds like we do need the behavior
prev parent reply other threads:[~2008-08-30 16:02 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-30 10:20 Andi Kleen
2008-08-30 16:01 ` Arjan van de Ven [this message]
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