git: pmap - Missing critical section when calling lwkt_ipiq_process().

[Antonio Huete Jimenez]

commit 9d8625ebaab570eee3ac8eb7269d6001bcda19cf
Author: Antonio Huete Jimenez <tuxillo at quantumachine.net>
Date:   Mon Oct 17 12:26:22 2011 -0700

    pmap - Missing critical section when calling lwkt_ipiq_process().
    
    - pmap_interlock_wait() explicitly calls lwkt_process_ipiq() which expects to
    be in a critical section. We still need cpu_ccfence() to guarantee that
    pmap->pm_active is always read inside the loop.
    
    - Sync pmap_interlock_wait's comment for both i386 and x86_64.
    
    DragonFly-bug: <http://bugs.dragonflybsd.org/issue2152>
    
    Reviewed by: @dillon, @vsrinivas

Summary of changes:
 sys/platform/pc32/i386/pmap.c   |    3 ++-
 sys/platform/pc64/x86_64/pmap.c |   11 +++++++++--
 2 files changed, 11 insertions(+), 3 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/9d8625ebaab570eee3ac8eb7269d6001bcda19cf


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