OpenAFS Master Repository branch, master, updated. BP--openafs-stable-1_6_x-82-g31bb2e5

[Gerrit Code Review]

The following commit has been merged in the master branch:
commit 31bb2e5eb5feb9c8e84d17b49fe70268127cdd43
Author: Andrew Deason <adeason@sinenomine.net>
Date:   Thu Sep 2 11:25:27 2010 -0500

    vol: Add VInit cond var and remove busywaits
    
    In DAFS, FSYNC_sync was waiting for VInit to reach at least 2 by
    looping around pthread_yield(). For a server with a large number of
    volumes, it can take a while for volumes to preattach, and so we are
    effectively busy-waiting for preattach to finish. This can slow
    fileserver startup and peg the cpu.
    
    So instead, add a condition variable for when VInit changes, and wait
    on that. Also modify other checkers of VInit to use the cond var.
    
    Change-Id: Icc251fdf7d525d40a9db1938a9cb4d47a74dccba
    Reviewed-on: http://gerrit.openafs.org/2648
    Tested-by: Andrew Deason <adeason@sinenomine.net>
    Tested-by: BuildBot <buildbot@rampaginggeek.com>
    Reviewed-by: Derrick Brashear <shadow@dementia.org>

 src/vol/fssync-server.c |   11 ++++++++++-
 src/vol/volume.c        |   33 ++++++++++++++++++++++++++-------
 src/vol/volume.h        |    1 +
 3 files changed, 37 insertions(+), 8 deletions(-)

-- 
OpenAFS Master Repository