Justin Hibbits 5db86748b5 powerpc64/mmu: Make moea64_pvo_enter() return if an entry already exists
Summary:
Instead of searching for a PVO entry before adding, take advantage of
the fact that RB_INSERT() returns NULL if it inserts, and the existing entry if
an entry exists, without inserting a new entry.  This saves an extra tree
traversal in the cases where the PVO does not exist.

Reviewed by:	luporl
Differential Revision: https://reviews.freebsd.org/D20944
2019-07-22 03:11:54 +00:00
..
2019-02-04 16:02:03 +00:00
2019-02-04 16:02:03 +00:00