Re: [PATCH] fix split_vma vs. invalidate_mmap_range_list race

[Andrew Morton <akpm@osdl.org>]

Rajesh Venkatasubramanian <vrajesh@eecs.umich.edu> wrote:
>
> 
> > 
> > It looks OK.  I updated the VM lock ranking docco to cover this.
> 
> >   *
> > + *  ->i_sem
> > + *    ->i_shared_sem		(truncate->invalidate_mmap_range)
> > + *
> 
> I don't understand how my patch introduced this new(?) ordering.

It did not: I just added this as I was reviewing the code, because it was
missing.

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