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Message-ID: <4BA00CE4.1090108@kernel.org> Date: Wed, 17 Mar 2010 07:57:40 +0900 From: Tejun Heo <tj@...nel.org> To: Christoph Lameter <cl@...ux-foundation.org> CC: Linus Torvalds <torvalds@...ux-foundation.org>, Andrew Morton <akpm@...ux-foundation.org>, Ingo Molnar <mingo@...e.hu>, lkml <linux-kernel@...r.kernel.org>, Lee Schermerhorn <Lee.Schermerhorn@...com> Subject: Re: [RFC] remove implicit slab.h inclusion from percpu.h Hello, On 03/17/2010 01:16 AM, Christoph Lameter wrote: > On Thu, 11 Mar 2010, Tejun Heo wrote: > >> Lee Schermerhorn was trying to use percpu from slab.h and ran into a >> dependency loop. percpu.h was using slab.h for UP inline > > The problem is that percpu.h includes slab.h for the UP case. Yes, that's the reason why slab.h is included in percpu.h unconditionally. > slab.h does not use percpu.h. Lee was trying to have topology.h use > percpu.h which fails because percpu.h uses gfp.h which in turn uses > topology.h again. But apparently a lot of files depend on getting slab.h through percpu.h and removing slab.h causes a lot of build breakages UP or SMP. > Did something change there or does the description need an update? I don't find anything too wrong about the description? Thanks. -- 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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