VOP_RENAME of the future

Matthew Dillon dillon at apollo.backplane.com
Mon Aug 7 16:37:22 PDT 2006

:what?  which use could this have, ever?  what happens then when it unbloc=
:ks, will it just sleep or will it fail after the lock becomes free again?=
:  simon

     Precisely what I said.  There were some very, very special cases in
     FreeBSD related to vnode destruction that still use it.  But if you
     grep the code you will see that 98% of the calls specify LK_RETRY.

     We also have LK_SLEEPFAIL and LK_NOWAIT.  Both are still seriously
     misused.  FreeBSD still has LK_DRAIN and LK_INTERLOCK which are abused
     even worse then LK_SLEEPFAIL.  I was able to get rid of those two
     in DragonFly.


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