[issue1942] non-zero exclusive count(Re: locking against myself in getcacheblk()?)

Matthew Dillon dillon at apollo.backplane.com
Wed Dec 29 00:50:40 PST 2010

   Oh, put TDF_DEADLKTREAT back in guys.  That was indeed one place where
   an exclusive lock could wiggle its way in but the shared->exclusive
   upgrade also allows the same wiggling so my solution was to check for
   the wiggle instead of remove the wiggle.


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