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Date: Tue, 06 Oct 2009 00:01:35 +0900 From: Tejun Heo <tj@...nel.org> To: Christoph Lameter <cl@...ux-foundation.org> CC: akpm@...ux-foundation.org, linux-kernel@...r.kernel.org, Mel Gorman <mel@....ul.ie>, mingo@...e.hu, rusty@...tcorp.com.au, Pekka Enberg <penberg@...helsinki.fi> Subject: Re: [this_cpu_xx V4 12/20] Move early initialization of pagesets out of zone_wait_table_init() Christoph Lameter wrote: > On Sat, 3 Oct 2009, Tejun Heo wrote: > >>> arch/ia64/kernel/setup.c | 1 + >>> arch/powerpc/kernel/setup_64.c | 1 + >>> arch/sparc/kernel/smp_64.c | 1 + >>> arch/x86/kernel/setup_percpu.c | 2 ++ >>> include/linux/mm.h | 1 + >>> mm/page_alloc.c | 40 +++++++++++++++++++++++++++++----------- >>> mm/percpu.c | 2 ++ >> Hmmm... why not call this function from start_kernel() after calling >> setup_per_cpu_areas() instead of modifying every implementation of >> setup_per_cpu_areas()? > > Because it has to be called immediately after per cpu areas become > available. Otherwise page allocator uses will fail. But... setup_per_cpu_area() isn't supposed to call page allocator and start_kernel() is the only caller of setup_per_cpu_areas(). -- tejun -- 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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