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

[Peter Zijlstra]

On Thu, 2012-03-08 at 21:44 +0000, Al Viro wrote:
> I suspect that they right thing would be to have a way to set explicit
> nesting rules, not tied to speficic call trace. 

See might_lock() / might_lock_read(), these are used to implement
might_fault(), which is used to annotate paths that could -- but rarely
do -- fault.
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