git: kernel - Fix rare pmap_scan_callback() panic

[Matthew Dillon]

commit 698ba577565a1484600cf605097904c9c974d49e
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Sun May 27 08:45:28 2018 -0700

    kernel - Fix rare pmap_scan_callback() panic
    
    * Fix a panic where pmap_scan_callback() can sometimes call
      pv_put() with a NULL pd_pv.

Summary of changes:
 sys/platform/pc64/x86_64/pmap.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/698ba577565a1484600cf605097904c9c974d49e


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