Re: [RFC][PATCH 7/7] lockdep: spin_lock_nest_lock()

[Roland Dreier]

 > NOTE: we're still bound to the MAX_LOCK_DEPTH (48) limit.

A) It is probably a good idea to put this in a comment somewhere near
   where spin_lock_nest_lock() is declared.

B) It is probably a good idea to write that comment in such a way that
   dumb people like me understand what the limit is.  The sentence I
   quoted above is too telegraphic for me to get.  Is the point that no
   more than 48 spinlocks can be held at once, even if the inner locks
   are protected by some top level lock?  Or do you mean something else?

 - R.
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