From: "Mika Penttilä" <mika.penttila@kolumbus.fi>
To: "David S. Miller" <davem@redhat.com>
Cc: rmk@arm.linux.org.uk, akpm@digeo.com, hugh@veritas.com,
LW@KARO-electronics.de, linux-kernel@vger.kernel.org
Subject: Re: [patch] cache flush bug in mm/filemap.c (all kernels >= 2.5.30(at least))
Date: Mon, 26 May 2003 08:36:34 +0300 [thread overview]
Message-ID: <3ED1A7E2.6080607@kolumbus.fi> (raw)
In-Reply-To: 20030525.220852.42800415.davem@redhat.com
ah, ok. so there are cache issues even if if the user pte is not
established yet? Then it seems natural to couple flush_dcache_page with
pte establishing, not at the driver level.
--Mika
David S. Miller wrote:
> From: **UNKNOWN CHARSET** <mika.penttila@kolumbus.fi>
> Date: Mon, 26 May 2003 08:07:10 +0300
>
> I don't think the flush_dcache_page thing is done almost anywhere in the
> block/driver level right now.
>
>It isn't and it shouldn't :-)
>
> And we shouldn't be doing io reads to pagecache pages with user
> mappings anyway normally. direct-io is a different thing.
>
>We are talking about the case where we are bringing in the
>data for the first time, on the page cache lookup miss.
>
>
>
next prev parent reply other threads:[~2003-05-26 5:17 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-22 12:34 [patch] cache flush bug in mm/filemap.c (all kernels >= 2.5.30(at least)) LW
2003-05-22 14:03 ` Russell King
2003-05-22 14:11 ` Russell King
2003-05-23 8:02 ` David S. Miller
2003-05-23 9:12 ` Andrew Morton
2003-05-23 9:49 ` David S. Miller
2003-05-23 10:04 ` Andrew Morton
2003-05-23 10:15 ` David S. Miller
2003-05-23 8:20 ` Lothar Wassmann
2003-05-23 9:24 ` Andrew Morton
2003-05-23 10:04 ` Lothar Wassmann
2003-05-23 10:45 ` Andrew Morton
2003-05-23 11:22 ` Paul Mackerras
2003-05-23 16:54 ` Russell King
2003-05-23 17:31 ` Hugh Dickins
2003-05-23 18:29 ` Andrew Morton
2003-05-23 18:34 ` Russell King
2003-05-26 3:19 ` David S. Miller
2003-05-26 5:07 ` Mika Penttilä
2003-05-26 5:08 ` David S. Miller
2003-05-26 5:36 ` Mika Penttilä [this message]
2003-05-26 5:36 ` David S. Miller
2003-05-26 13:18 ` Roman Zippel
2003-05-26 22:34 ` David S. Miller
2003-05-27 10:53 ` Roman Zippel
2003-05-27 21:22 ` David S. Miller
2003-05-28 16:35 ` Roman Zippel
2003-05-28 22:47 ` David S. Miller
2003-05-29 0:12 ` Roman Zippel
2003-05-29 1:37 ` David S. Miller
2003-05-29 7:13 ` Russell King
2003-05-29 7:15 ` David S. Miller
2003-05-29 17:49 ` Roman Zippel
2003-05-29 21:09 ` David S. Miller
2003-05-26 8:55 ` Russell King
2003-05-26 13:08 ` Lothar Wassmann
2003-05-26 22:19 ` Russell King
2003-05-26 13:25 ` Jens Axboe
2003-05-26 22:35 ` David S. Miller
2003-05-26 3:20 ` David S. Miller
2003-05-23 11:13 ` Russell King
2003-05-23 12:46 ` Lothar Wassmann
2003-05-23 15:42 ` Hugh Dickins
2003-05-25 17:10 ` David Woodhouse
2003-05-26 11:44 ` Lothar Wassmann
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