linux-kernel - Re: mmotm 2010-01-06-14-34 uploaded (kernel/cgroup)

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Message-Id: <20100107113154.a1fa0103.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Thu, 7 Jan 2010 11:31:54 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	Randy Dunlap <randy.dunlap@...cle.com>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	"menage@...gle.com" <menage@...gle.com>, kirill@...temov.name,
	"lizf@...fujitsu.com" <lizf@...fujitsu.com>
Subject: Re: mmotm 2010-01-06-14-34 uploaded (kernel/cgroup)

On Wed, 6 Jan 2010 17:08:49 -0800
Randy Dunlap <randy.dunlap@...cle.com> wrote:

> On Wed, 06 Jan 2010 14:34:36 -0800 akpm@...ux-foundation.org wrote:
> 
> > The mm-of-the-moment snapshot 2010-01-06-14-34 has been uploaded to
> > 
> >    http://userweb.kernel.org/~akpm/mmotm/
> > 
> > and will soon be available at
> > 
> >    git://zen-kernel.org/kernel/mmotm.git
> > 
> > It contains the following patches against 2.6.33-rc3:
> 
> 
> kernel/cgroup.c: In function 'cgroup_write_event_control':
> kernel/cgroup.c:2949: error: implicit declaration of function 'eventfd_fget'
> kernel/cgroup.c:2949: warning: assignment makes pointer from integer without a cast
> kernel/cgroup.c:2955: error: implicit declaration of function 'eventfd_ctx_fileget'
> kernel/cgroup.c:2955: warning: assignment makes pointer from integer without a cast
> make[2]: *** [kernel/cgroup.o] Error 1
> 

Hmm, how about this rather than adding #ifdefs..
Paul, Li, how do you think ?
==
Cgroup's eventdf feature has depenedecy to EVENTFD

This is a patch onto
cgroup-implement-eventfd-based-generic-api-for-notifications.patch

CC: Li Zefan <lizf@...fujitsu.com>
CC: Kirill A. Shutemov <kirill@...temov.name>
CC: Paul Menage <menage@...gle.com>
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>

---
 init/Kconfig |    1 +
 1 file changed, 1 insertion(+)

Index: ref-mmotm/init/Kconfig
===================================================================
--- ref-mmotm.orig/init/Kconfig
+++ ref-mmotm/init/Kconfig
@@ -509,6 +509,7 @@ endchoice
 
 menuconfig CGROUPS
 	boolean "Control Group support"
+	depends on EVENTFD
 	help
 	  This option adds support for grouping sets of processes together, for
 	  use with process control subsystems such as Cpusets, CFS, memory

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