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Re: locking question: do_mmap(), do_munmap()

To: Dominic Sweetman <dom@algor.co.uk>
Subject: Re: locking question: do_mmap(), do_munmap()
From: Ralf Baechle <ralf@oss.sgi.com>
Date: Wed, 20 Oct 1999 00:02:42 +0200
Cc: Ralf Baechle <ralf@oss.sgi.com>, Kanoj Sarcar <kanoj@google.engr.sgi.com>, linux@cthulhu.engr.sgi.com, linux-mips@fnet.fr, linux-mips@vger.rutgers.edu
In-reply-to: <199910190734.IAA00237@gladsmuir.algor.co.uk>
References: <19991015115816.B948@uni-koblenz.de> <199910151750.KAA99441@google.engr.sgi.com> <19991018103733.B3047@uni-koblenz.de> <199910190734.IAA00237@gladsmuir.algor.co.uk>
On Tue, Oct 19, 1999 at 08:34:30AM +0100, Dominic Sweetman wrote:

> > (On the R3000 which allows swapping of i-cache and d-cache for
> > diagnostic purposes it actually is possible to have dirty lines in
> > the d-cache when it's used as the i-cache...
> 
> Not really; the R3000 caches were always write-through, so the 
> d-cache can never be dirty and in fact has exactly the same possible
> states as the i-cache.

Duh...  You're of course right.

  Ralf

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