Suleiman Souhlal 34cc826ae8 Holding a vnode doesn't prevent v_mount from disappearing (when the
vnode is inactivated), possibly leading to a NULL dereference when
checking if the mount wants knotes to be activated in the VOP hooks.
So, we add a new vnode flag VV_NOKNOTE that is only set in getnewvnode(),
if necessary, and check it when activating knotes.
Since the flags are not erased when a vnode is being held, we can safely
read them.

Reviewed by:	kris@
MFC after:	3 days
2005-08-06 01:42:04 +00:00
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2005-03-11 22:07:04 +00:00
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