Mateusz Guzik 2c054ce924 proc: always store parent pid in p_oppid
Doing so removes the dependency on proctree lock from sysctl process list
export which further reduces contention during poudriere -j 128 runs.

Reviewed by:	kib (previous version)
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D17825
2018-11-16 17:07:54 +00:00
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