git: kernel - Fix alarm() timer race against exit

[Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxxxxx>]

commit a471eac535f632f45345fec35628581b8931e2b1
Author: Matthew Dillon <dillon@apollo.backplane.com>
Date:   Wed Dec 7 18:44:15 2011 -0800

    kernel - Fix alarm() timer race against exit
    
    * Stop the callout synchronously to ensure that any pending alarm timeout
      is completely removed before we allow a process to exit.
    
    * Add a required PHOLD() to the relaitexpire() function.

Summary of changes:
 sys/kern/kern_exit.c    |    2 +-
 sys/kern/kern_time.c    |   11 ++++++-----
 sys/kern/kern_timeout.c |   10 ++++++++--
 3 files changed, 15 insertions(+), 8 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/a471eac535f632f45345fec35628581b8931e2b1


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