From: William Lee Irwin III <wli@holomorphy.com>
To: Andrew Morton <akpm@osdl.org>
Cc: Jens Axboe <axboe@suse.de>,
riel@redhat.com, andrea@suse.de, linux-kernel@vger.kernel.org,
Robert_Hentosh@Dell.com, kernel@kolivas.org
Subject: Re: [PATCH][1/2] adjust dirty threshold for lowmem-only mappings
Date: Sun, 2 Jan 2005 12:25:29 -0800 [thread overview]
Message-ID: <20050102202529.GK29332@holomorphy.com> (raw)
In-Reply-To: <20050102120324.2b52a848.akpm@osdl.org>
At some point in the past, I wrote:
>>> Lifting the artificial lowmem restrictions on blockdev mappings
>>> (thereby nuking mapping->gfp_mask altogether) would resolve a number of
>>> problems, not that anything making that much sense could ever happen.
Jens Axboe <axboe@suse.de> wrote:
>> It should be lifted for block devices, it doesn't make any sense.
On Sun, Jan 02, 2005 at 12:03:24PM -0800, Andrew Morton wrote:
> Before we can permit blockdev pagecache to use highmem we must convert
> every piece of code which accesses the cache to use kmap/kmap_atomic. If
> you grep around for b_data you'll see there are a lot of such places.
> Probably the migration could be done on a per-fs basis.
I'd regard such an incremental conversion strategy as a prerequisite, and
would have no trouble working within such constraints.
-- wli
next prev parent reply other threads:[~2005-01-02 20:25 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-20 15:15 [PATCH][1/2] adjust dirty threshold for lowmem-only mappings Rik van Riel
2004-12-20 15:23 ` Rik van Riel
2004-12-20 20:54 ` Andrew Morton
2004-12-20 21:27 ` Rik van Riel
2004-12-23 19:21 ` Rik van Riel
2004-12-24 16:01 ` Andrea Arcangeli
2004-12-24 16:22 ` Rik van Riel
2004-12-24 16:40 ` Andrea Arcangeli
2004-12-24 22:12 ` Rik van Riel
2004-12-25 2:07 ` Andrea Arcangeli
2004-12-25 17:59 ` Rik van Riel
2004-12-25 18:36 ` Andrea Arcangeli
2004-12-25 19:07 ` William Lee Irwin III
2004-12-25 20:03 ` Andrea Arcangeli
2004-12-26 3:07 ` William Lee Irwin III
2005-01-02 16:10 ` Andrea Arcangeli
2005-01-02 16:36 ` William Lee Irwin III
2005-01-02 16:53 ` Rik van Riel
2005-01-02 17:21 ` Andrea Arcangeli
2004-12-25 22:03 ` Nikita Danilov
2004-12-26 3:16 ` William Lee Irwin III
2005-01-02 15:11 ` Jens Axboe
2005-01-02 16:18 ` Andrea Arcangeli
2005-01-02 20:03 ` Andrew Morton
2005-01-02 20:25 ` William Lee Irwin III [this message]
-- strict thread matches above, loose matches on Subject: below --
2004-12-20 16:46 Robert_Hentosh
2004-12-20 17:56 ` Sami Farin
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