From: Andrew Morton <akpm@linux-foundation.org>
To: Nick Piggin <npiggin@suse.de>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-fsdevel@vger.kernel.org,
"Eric W. Biederman" <ebiederm@xmission.com>,
rob@landley.net, Jens Axboe <axboe@kernel.dk>
Subject: Re: [patch] rd: support XIP
Date: Tue, 4 Dec 2007 03:26:20 -0800 [thread overview]
Message-ID: <20071204032620.aaee039b.akpm@linux-foundation.org> (raw)
In-Reply-To: <20071204112100.GA20420@wotan.suse.de>
On Tue, 4 Dec 2007 12:21:00 +0100 Nick Piggin <npiggin@suse.de> wrote:
> + *
> + * Cannot support XIP and highmem, because our ->direct_access
> + * routine for XIP must return memory that is always addressable.
> + * If XIP was reworked to use pfns and kmap throughout, this
> + * restriction might be able to be lifted.
> */
> + gfp_flags = GFP_NOIO | __GFP_ZERO;
> +#ifndef CONFIG_BLK_DEV_XIP
> + gfp_flags |= __GFP_HIGHMEM;
> +#endif
A dubious tradeoff?
next prev parent reply other threads:[~2007-12-04 11:27 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-04 4:26 [patch] rewrite rd Nick Piggin
2007-12-04 4:26 ` Nick Piggin
2007-12-04 6:29 ` Andrew Morton
2007-12-04 7:01 ` Nick Piggin
2007-12-04 7:08 ` Nick Piggin
2007-12-04 7:55 ` Rob Landley
2007-12-04 9:29 ` Nick Piggin
2007-12-04 19:53 ` Rob Landley
2007-12-04 9:54 ` Christian Borntraeger
2007-12-04 10:10 ` Nick Piggin
2007-12-04 11:21 ` [patch] rd: support XIP Nick Piggin
2007-12-04 11:23 ` [patch] ext2: xip check fix Nick Piggin
2007-12-05 15:43 ` Carsten Otte
2007-12-05 23:33 ` Nick Piggin
2007-12-06 8:43 ` Carsten Otte
2007-12-06 8:52 ` Nick Piggin
2007-12-06 9:59 ` Carsten Otte
2007-12-06 10:18 ` Nick Piggin
2007-12-06 10:24 ` Carsten Otte
2007-12-06 18:11 ` Rob Landley
2007-12-07 3:22 ` Jared Hulbert
2007-12-07 4:17 ` Rob Landley
2007-12-07 4:23 ` Nick Piggin
2007-12-07 4:40 ` Jared Hulbert
2007-12-07 8:59 ` Carsten Otte
2007-12-07 9:52 ` Jared Hulbert
2007-12-04 11:26 ` Andrew Morton [this message]
2007-12-04 11:35 ` [patch] rd: support XIP Nick Piggin
2007-12-04 13:00 ` [patch] mm: fix XIP file writes Nick Piggin
2007-12-10 14:38 ` Christian Borntraeger
2007-12-12 4:03 ` Nick Piggin
2007-12-04 12:06 ` [patch] rd: support XIP Duane Griffin
2007-12-04 13:03 ` [patch] rd: support XIP (updated) Nick Piggin
2008-01-14 16:47 ` [patch] rewrite rd Matthew Wilcox
2008-01-14 17:21 ` Jens Axboe
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