Re: [patch] rd: support XIP

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From: Andrew Morton

Date: Tuesday, December 4, 2007 - 4:26 am

On Tue, 4 Dec 2007 12:21:00 +0100 Nick Piggin <npiggin@suse.de> wrote:

quoted text> +	 *
> +	 * 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?
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Messages in current thread:

[patch] rewrite rd, Nick Piggin, (Mon Dec 3, 9:26 pm)

Re: [patch] rewrite rd, Andrew Morton, (Mon Dec 3, 11:29 pm)

Re: [patch] rewrite rd, Nick Piggin, (Tue Dec 4, 12:01 am)

Re: [patch] rewrite rd, Nick Piggin, (Tue Dec 4, 12:08 am)

Re: [patch] rewrite rd, Rob Landley, (Tue Dec 4, 12:55 am)

Re: [patch] rewrite rd, Nick Piggin, (Tue Dec 4, 2:29 am)

Re: [patch] rewrite rd, Christian Borntraeger, (Tue Dec 4, 2:54 am)

Re: [patch] rewrite rd, Nick Piggin, (Tue Dec 4, 3:10 am)

[patch] rd: support XIP, Nick Piggin, (Tue Dec 4, 4:21 am)

[patch] ext2: xip check fix, Nick Piggin, (Tue Dec 4, 4:23 am)

Re: [patch] rd: support XIP, Andrew Morton, (Tue Dec 4, 4:26 am)

Re: [patch] rd: support XIP, Nick Piggin, (Tue Dec 4, 4:35 am)

Re: [patch] rd: support XIP, Duane Griffin, (Tue Dec 4, 5:06 am)

[patch] mm: fix XIP file writes, Nick Piggin, (Tue Dec 4, 6:00 am)

[patch] rd: support XIP (updated), Nick Piggin, (Tue Dec 4, 6:03 am)

Re: [patch] rewrite rd, Rob Landley, (Tue Dec 4, 12:53 pm)

Re: [patch] ext2: xip check fix, Carsten Otte, (Wed Dec 5, 8:43 am)

Re: [patch] ext2: xip check fix, Nick Piggin, (Wed Dec 5, 4:33 pm)

Re: [patch] ext2: xip check fix, Carsten Otte, (Thu Dec 6, 1:43 am)

Re: [patch] ext2: xip check fix, Nick Piggin, (Thu Dec 6, 1:52 am)

Re: [patch] ext2: xip check fix, Carsten Otte, (Thu Dec 6, 2:59 am)

Re: [patch] ext2: xip check fix, Nick Piggin, (Thu Dec 6, 3:18 am)

Re: [patch] ext2: xip check fix, Carsten Otte, (Thu Dec 6, 3:24 am)

Re: [patch] ext2: xip check fix, Rob Landley, (Thu Dec 6, 11:11 am)

Re: [patch] ext2: xip check fix, Jared Hulbert, (Thu Dec 6, 8:22 pm)

Re: [patch] ext2: xip check fix, Rob Landley, (Thu Dec 6, 9:17 pm)

Re: [patch] ext2: xip check fix, Nick Piggin, (Thu Dec 6, 9:23 pm)

Re: [patch] ext2: xip check fix, Jared Hulbert, (Thu Dec 6, 9:40 pm)

Re: [patch] ext2: xip check fix, Carsten Otte, (Fri Dec 7, 1:59 am)

Re: [patch] ext2: xip check fix, Jared Hulbert, (Fri Dec 7, 2:52 am)

Re: [patch] mm: fix XIP file writes, Christian Borntraeger, (Mon Dec 10, 7:38 am)

Re: [patch] mm: fix XIP file writes, Nick Piggin, (Tue Dec 11, 9:03 pm)

Re: [patch] rewrite rd, Matthew Wilcox, (Mon Jan 14, 9:47 am)

Re: [patch] rewrite rd, Jens Axboe, (Mon Jan 14, 10:21 am)


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