git: kernel - namecache clock performance improvement

[Matthew Dillon]

commit f47812448fb96f6b04cfcf9fe3002e1086d4899b
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Wed Oct 16 20:31:21 2013 -0700

    kernel - namecache clock performance improvement
    
    * Fix a bug in _cache_lock_shared_special() which could cause a shared
      lock to improperly fall-back to an exclusive lock.  This could result
      in a cascade which regressed all namecache locks on the ncp in question
      to also fall-back.

Summary of changes:
 sys/kern/vfs_cache.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/f47812448fb96f6b04cfcf9fe3002e1086d4899b


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