git: kern: Split filehead into multiple heads

[Sepherosa Ziehau]

commit 287f6b179fa533a9c8aaf609d389bc6457bdc580
Author: Sepherosa Ziehau <sephe at dragonflybsd.org>
Date:   Mon Oct 12 21:13:09 2015 +0800

    kern: Split filehead into multiple heads
    
    This greatly reduces filehead spinlock contention (almost no contention)
    for the test/kq_connect_client.
    
    Suggested-by: dillon@

Summary of changes:
 sys/kern/kern_descrip.c | 78 +++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 62 insertions(+), 16 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/287f6b179fa533a9c8aaf609d389bc6457bdc580


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