linux-kernel - Re: [PATCH] introduce task cgroup v2

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Message-Id: <20080616160520.78AC.KOSAKI.MOTOHIRO@jp.fujitsu.com>
Date:	Mon, 16 Jun 2008 16:06:34 +0900
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Li Zefan <lizf@...fujitsu.com>
Cc:	kosaki.motohiro@...fujitsu.com, containers@...ts.osdl.org,
	LKML <linux-kernel@...r.kernel.org>,
	Paul Menage <menage@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] introduce task cgroup v2

> I guess you didn't notice this comment ? :)

Agghhh, you are right.
sorry.

> >> --- a/kernel/fork.c
> >> > +++ b/kernel/fork.c
> >> > @@ -54,6 +54,7 @@
> >> >  #include <linux/tty.h>
> >> >  #include <linux/proc_fs.h>
> >> >  #include <linux/blkdev.h>
> >> > +#include <linux/cgroup_task.h>
> >> >  
> >> >  #include <asm/pgtable.h>
> >> >  #include <asm/pgalloc.h>
> >> > @@ -920,6 +921,8 @@ static struct task_struct *copy_process(
> >> >  		    p->user != current->nsproxy->user_ns->root_user)
> >> >  			goto bad_fork_free;
> >> >  	}
> >> > +	if (task_cgroup_can_fork(p))
> >> > +		goto bad_fork_free;
> > 
> > If task_cgroup_can_fork() returns 0, but copy_process() fails afterwords,
> > taskcg->nr_tasks will be in a wrong state.

Sure.
I'll fix it, of cource.

Thanks!



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