git: DragonFly_RELEASE_4_6 kernel - Fix getpid() issue in vfork() when threaded

[Matthew Dillon]

commit b4d214925c8f708d2225d8a54f8bb2fa49238618
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Thu Jul 28 09:39:57 2016 -0700

    kernel - Fix getpid() issue in vfork() when threaded
    
    * upmap->invfork was a 0 or 1, but in a threaded program it is possible
      for multiple threads to be in vfork() at the same time.  Change invfork
      to a count.
    
    * Fixes improper getpid() return when concurrent vfork()s are occuring in
      a threaded program.

Summary of changes:
 sys/kern/kern_exec.c | 2 +-
 sys/kern/kern_exit.c | 2 +-
 sys/kern/kern_fork.c | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/b4d214925c8f708d2225d8a54f8bb2fa49238618


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