Re: [PATCH] hugetlbfs: lockdep annotate root inode properly

[Aneesh Kumar K.V]

On Thu, 8 Mar 2012 14:19:38 -0800, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
> On Thu, 8 Mar 2012 21:49:52 +0000
> Al Viro <viro@xxxxxxxxxxxxxxxxxx> wrote:
> 
> > > So we need to pull the i_mutex out of hugetlbfs_file_mmap().
> > 
> > IIRC, you have a patch in your tree doing just that...
> 
> Nope.
> 
> But it seems that you've recently seen such a patch - can you recall
> where?  Or was it the ecryptfs thing?
> 

So what we ended up doing was

http://article.gmane.org/gmane.linux.kernel.mm/74732

The patch update hugetlbfs_read to not take i_mutex. That should make
sure deadlock won't happen. 


-aneesh

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