From: Matti Aarnio <matti.aarnio@sonera.fi>
To: "Eric W. Biederman" <ebiederm+eric@ccr.net>
Cc: matti.aarnio@sonera.fi, linux-mm@kvack.org,
linux-kernel@vger.rutgers.edu
Subject: Re: Large-File support of 32-bit Linux v0.01 available!
Date: Mon, 28 Dec 1998 00:04:37 +0200 (EET) [thread overview]
Message-ID: <19981227220446Z92289-18655+40@mea.tmt.tele.fi> (raw)
In-Reply-To: <m167ay5bb1.fsf@flinx.ccr.net> from "Eric W. Biederman" at "Dec 27, 98 00:49:38 am"
Eric W. Biederman replied to my challenge on large file offsets on
Linux kernel:
..
> I started on it a while ago but I've be extremly short on free time.
>
> The following is a patch you will need if you intend to make everything page
> aligned in the page cache. It removes the need for old that old a.out binaries
> have for unaligned mappings, leaving only the page alinged QMAGIC
> a.out binaries still in a position to do code sharing. The rest
> continue to work and just print anoying warnings. (Reminding me it's
> time I upgrade some of my old slackware 2.2 software...)
Ok, I added those in.
> I have some other logic mostly complete that keeps offset parameter in
> the vm_area struct at 32 bits, and hopefully a greater chunck of the
> page cache.
You mean 'vm_offset' field ?
There are 37 files with (sub)string 'vm_offset' in them.
Changeing its type from current loff_t to pgoff_t would
help finding its instances, I guess. (And thus ease locating
places using it for page (non-)aligned things.)
That part about "a greater chunk" I don't understand, though.
> If I have the time I'll finish merging that with your start on the
> system calls.
>
> Eric
/Matti Aarnio <matti.aarnio@sonera.fi>
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next prev parent reply other threads:[~1998-12-28 0:07 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-12-27 6:49 Eric W. Biederman
1998-12-27 22:04 ` Matti Aarnio [this message]
1998-12-28 1:01 ` Eric W. Biederman
1998-12-30 17:34 ` Eric W. Biederman
1998-12-30 16:29 ` Matti Aarnio
1998-12-30 20:04 ` Eric W. Biederman
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