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Date: Tue, 3 Jun 2008 16:42:25 +1000 From: Paul Mackerras <paulus@...ba.org> To: "Pekka Enberg" <penberg@...helsinki.fi> Cc: "FUJITA Tomonori" <fujita.tomonori@....ntt.co.jp>, linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org, akpm@...ux-foundation.org Subject: Re: [PATCH -mm] clean up duplicated alloc/free_thread_info Pekka Enberg writes: > Yeah, I too have wondered why some architectures use kmalloc() whereas > others use the page allocator. Is THREAD_SIZE significantly smaller > than PAGE_SIZE for those? 64-bit powerpc uses 16k kernel stacks and either 4k or 64k page size. If the page size is 64k then we don't want to allocate a whole page for a kernel stack. Paul. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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