Messages in this thread | | | Date | Wed, 16 May 2007 08:58:39 +0200 (CEST) | From | Geert Uytterhoeven <> | Subject | Re: Slab allocators: Define common size limitations |
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On Tue, 15 May 2007, Christoph Lameter wrote: > So define a common maximum size for kmalloc. For conveniences sake > we use the maximum size ever supported which is 32 MB. We limit the maximum > size to a lower limit if MAX_ORDER does not allow such large allocations.
What are the changes a large allocation will actually succeed? Is there an alignment rule for large allocations?
E.g. for one of the PS3 drivers I need a physically contiguous 256 KiB-aligned block of 256 KiB. Currently I'm using __alloc_bootmem() for that, but maybe kmalloc() becomes a suitable alternative now?
Gr{oetje,eeting}s,
Geert
-- Geert Uytterhoeven -- Sony Network and Software Technology Center Europe (NSCE) Geert.Uytterhoeven@sonycom.com ------- The Corporate Village, Da Vincilaan 7-D1 Voice +32-2-7008453 Fax +32-2-7008622 ---------------- B-1935 Zaventem, Belgium - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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