From: "Christopher Friesen" <cfriesen@nortel.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: linuxppc64-dev@ozlabs.org, linuxppc-embedded@ozlabs.org
Subject: Re: modify the cache-inhibit and guard bits from userspace?
Date: Tue, 15 Nov 2005 17:15:58 -0600 [thread overview]
Message-ID: <437A6C2E.1020807@nortel.com> (raw)
In-Reply-To: <200511152338.53238.arnd@arndb.de>
Arnd Bergmann wrote:
> I have seen an earlier patch that modifies madvise to do this, which seems
> a little saner than mprotect, although they can probably both be implemented
> in a similar way.
Ah, that would make sense. It does fit the intent of the function a bit
better.
> Alternatively, you could write a new file system similar to hugetlbfs and set
> the cache-inhibit bit in its mmap function.
Also a possibility. I think the madvise method is a bit cleaner for the
apps.
Chris
prev parent reply other threads:[~2005-11-15 23:15 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-15 21:16 modify the cache-inhibit and guard bits from userspace? Christopher Friesen
2005-11-15 22:38 ` Arnd Bergmann
2005-11-15 23:15 ` Christopher Friesen [this message]
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