Re: [PATCH] memcg: update documentation v5

[Vivek Goyal]

On Tue, Apr 13, 2010 at 09:57:18AM -0400, Vivek Goyal wrote:
> On Tue, Apr 13, 2010 at 01:45:53PM +0900, KAMEZAWA Hiroyuki wrote:
> 

Typed wrong email id last time and mail bounced. So here is another
attempt.

> [..]
> > -2. Locking
> > +2.6 Locking
> >  
> > -The memory controller uses the following hierarchy
> > +   lock_page_cgroup()/unlock_page_cgroup() should not be called under
> > +   mapping->tree_lock.
> >  
> 
> Because I never understood very well, I will ask. Why lock_page_cgroup()
> should not be called under mapping->tree_lock?
> 
> Thanks
> Vivek
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