Robert Watson e5cb5e37d4 Close a race in process label changing opened due to dropping the
proc locking when revoking access to mmaps.  Instead, perform this
later once we've changed the process label (hold onto a reference
to the new cred so that we don't lose it when we release the
process lock if another thread changes the credential).

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
2002-08-19 20:26:32 +00:00
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