From: "Stephen C. Tweedie" <sct@redhat.com>
To: Chuck Lever <cel@monkey.org>
Cc: Andrea Arcangeli <andrea@e-mind.com>,
linux-kernel@vger.rutgers.edu, linux-mm@kvack.org,
Stephen Tweedie <sct@redhat.com>
Subject: Re: [patch] arca-vm-2.2.5
Date: Tue, 6 Apr 1999 15:02:58 +0100 (BST) [thread overview]
Message-ID: <14090.5138.562574.858572@dukat.scot.redhat.com> (raw)
In-Reply-To: <Pine.BSF.4.03.9904051658150.25730-100000@funky.monkey.org>
Hi,
On Mon, 5 Apr 1999 17:31:43 -0400 (EDT), Chuck Lever <cel@monkey.org>
said:
> hmmm. wouldn't you think that hashing with the low order bits in the
> offset would cause two different offsets against the same page to result
> in the hash function generating different output?
We always, always use page-aligned lookups for the page cache.
(Actually there is one exception: certain obsolete a.out binaries, which
are demand paged with the pages beginning at offset 1K into the binary.
We don't support cache coherency for those and we don't support them at
all on filesystems with a >1k block size. It doesn't impact on the hash
issue.)
--Stephen
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next prev parent reply other threads:[~1999-04-06 14:03 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-04-01 23:32 Andrea Arcangeli
1999-04-04 21:07 ` Chuck Lever
1999-04-05 0:22 ` Andrea Arcangeli
1999-04-05 13:23 ` Mark Hemment
1999-04-05 15:56 ` Andrea Arcangeli
1999-04-07 11:28 ` [patch] only-one-cache-query [was Re: [patch] arca-vm-2.2.5] Andrea Arcangeli
1999-04-07 13:06 ` Stephen C. Tweedie
1999-04-07 13:49 ` Andrea Arcangeli
1999-04-07 13:42 ` Andrea Arcangeli
1999-04-07 13:47 ` Ingo Molnar
1999-04-07 14:08 ` Andrea Arcangeli
1999-04-05 20:24 ` [patch] arca-vm-2.2.5 Horst von Brand
1999-04-05 23:25 ` Andrea Arcangeli
1999-04-05 23:37 ` Horst von Brand
1999-04-06 1:23 ` Andrea Arcangeli
1999-04-17 11:12 ` Andrea Arcangeli
1999-04-05 21:31 ` Chuck Lever
1999-04-06 0:15 ` Andrea Arcangeli
1999-04-06 2:14 ` Doug Ledford
1999-04-06 13:04 ` Andrea Arcangeli
1999-04-06 21:31 ` Stephen C. Tweedie
1999-04-06 22:27 ` Andrea Arcangeli
1999-04-07 12:27 ` Stephen C. Tweedie
1999-04-25 3:22 ` Chuck Lever
1999-04-06 5:52 ` Chuck Lever
1999-04-06 13:09 ` Andrea Arcangeli
1999-04-06 16:19 ` Eric W. Biederman
1999-04-06 20:26 ` Andrea Arcangeli
1999-04-07 5:00 ` Eric W. Biederman
1999-04-07 11:36 ` Andrea Arcangeli
1999-04-06 14:02 ` Stephen C. Tweedie [this message]
1999-04-06 15:38 ` Chuck Lever
1999-04-06 17:16 ` Andrea Arcangeli
1999-04-06 18:07 ` Andrea Arcangeli
1999-04-06 21:22 ` Stephen C. Tweedie
1999-04-06 22:19 ` Ingo Molnar
1999-04-06 22:40 ` David Miller
1999-04-06 22:49 ` Ingo Molnar
1999-04-06 22:53 ` David Miller
1999-04-07 15:59 ` Gabriel Paubert
1999-04-07 21:07 ` Arvind Sankar
1999-04-09 6:58 ` Eric W. Biederman
1999-04-09 9:27 ` Gabriel Paubert
1999-04-09 15:40 ` Eric W. Biederman
1999-04-08 8:09 ` Carlo Daffara
1999-04-06 22:31 ` Andrea Arcangeli
1999-04-06 20:47 ` Chuck Lever
1999-04-06 21:04 ` Andrea Arcangeli
1999-04-06 21:11 ` Stephen C. Tweedie
1999-04-06 14:00 ` Stephen C. Tweedie
1999-04-06 16:29 ` Andrea Arcangeli
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