Poul-Henning Kamp 363ad70091 The function union_fsync tries to lock overlaying vnode object when
dolock is not set (that is, targetvp == overlaying vnode object).
Current code use FIXUP macro to do this, and never unlocks overlaying
vnode object in union_fsync.  So, the vnode object will be locked
twice and never unlocked.

PR:		3271
Submitted by:	kato
1997-04-13 06:29:13 +00:00
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