From: Werner Almesberger <wa@almesberger.net>
To: Jamie Lokier <jamie@shareable.org>
Cc: Jens Axboe <axboe@suse.de>, linux-fsdevel@vger.kernel.org
Subject: Re: barriers vs. reads
Date: Tue, 22 Jun 2004 20:13:34 -0300 [thread overview]
Message-ID: <20040622201334.K1325@almesberger.net> (raw)
In-Reply-To: <20040622195746.GB24771@mail.shareable.org>; from jamie@shareable.org on Tue, Jun 22, 2004 at 08:57:46PM +0100
Jamie Lokier wrote:
> If there's a read which depends on a prior write, doesn't it make more
> sense to just copy the data in memory for the parts which overlap?
Probably. In this case, we'd have to fragment the read request
into the part that's handled through this copy operation, and
the 0-2 parts that need to come from disk.
- Werner
--
_________________________________________________________________________
/ Werner Almesberger, Buenos Aires, Argentina wa@almesberger.net /
/_http://www.almesberger.net/____________________________________________/
next prev parent reply other threads:[~2004-06-22 23:13 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-22 3:53 barriers vs. reads Werner Almesberger
2004-06-22 7:39 ` Jens Axboe
2004-06-22 7:50 ` Werner Almesberger
2004-06-22 7:55 ` Jens Axboe
2004-06-22 8:34 ` Werner Almesberger
2004-06-22 10:08 ` Jens Axboe
2004-06-22 11:28 ` Jamie Lokier
2004-06-22 11:32 ` Jens Axboe
2004-06-22 17:12 ` Bryan Henderson
2004-06-22 20:53 ` Jens Axboe
2004-06-23 16:41 ` Bryan Henderson
2004-06-23 16:52 ` Jens Axboe
2004-06-23 16:53 ` Jamie Lokier
2004-06-23 21:08 ` Bryan Henderson
2004-06-23 23:23 ` Werner Almesberger
2004-06-24 13:43 ` Jamie Lokier
2004-06-24 14:32 ` Christoph Hellwig
2004-06-24 17:05 ` Werner Almesberger
2004-06-22 18:53 ` Werner Almesberger
2004-06-22 19:57 ` Jamie Lokier
2004-06-22 23:13 ` Werner Almesberger [this message]
2004-06-22 20:57 ` Jens Axboe
2004-06-22 23:10 ` Werner Almesberger
2004-06-23 0:14 ` Jamie Lokier
2004-06-23 6:27 ` Jens Axboe
2004-06-22 18:45 ` Werner Almesberger
2004-06-22 19:07 ` Guy
-- strict thread matches above, loose matches on Subject: below --
2004-06-24 0:48 Werner Almesberger
2004-06-24 3:39 ` Werner Almesberger
2004-06-24 8:00 ` Herbert Poetzl
2004-06-24 12:16 ` Werner Almesberger
2004-06-24 13:36 ` Jamie Lokier
2004-06-24 17:02 ` Werner Almesberger
2004-06-24 16:39 ` Steve Lord
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