linux-kernel - Re: [PATCH 1/5] jump_label: factor out the base part of jump

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Message-ID: <20130902022324.GA28673@pek-khao-d1.corp.ad.wrs.com>
Date:	Mon, 2 Sep 2013 10:23:24 +0800
From:	Kevin Hao <haokexin@...il.com>
To:	Radim Krčmář <rkrcmar@...hat.com>
Cc:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	linuxppc <linuxppc-dev@...ts.ozlabs.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/5] jump_label: factor out the base part of jump_label.h
 to a separate file

On Fri, Aug 30, 2013 at 06:37:33PM +0200, Radim Krčmář wrote:
> 2013-08-25 15:15+0800, Kevin Hao:
> > We plan to use the jump label in the cpu/mmu feature check on ppc.
> > This will need to include the jump_label.h in several very basic header
> > files of ppc which seems to be included by most of the other head
> > files implicitly or explicitly. But in the current jump_label.h,
> > it also include the "linux/workqueue.h" and this will cause recursive
> > inclusion. In order to fix this, we choose to factor out the base
> > part of jump_label.h to a separate header file and we can include
> > that file instead of jump_label.h to avoid the recursive inclusion.
> > No functional change.
> 
> "linux/workqueue.h" was included because of deferred keys and they are
> split into "linux/jump_label_ratelimit.h" to solve the same problem in
> paravirt ticket spinlock series.
> (still in -next: 851cf6e7 jump_label: Split jumplabel ratelimit)

OK. I will respin a new version based on this patch. Thanks for the
information Radim.

Thanks,
Kevin

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