[Ocfs2-tools-commits] branch, libdlmcontrol, updated. ocfs2-tools-1.4.0-129-g74e6f9e

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The branch, libdlmcontrol has been updated
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       via  95d05e893adfae93b311d8350b336c9e5a56e613 (commit)
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- Log -----------------------------------------------------------------
commit 74e6f9e117a2b67340485f3448f5f7c6860c2cb2
Author: Joel Becker <joel.becker at oracle.com>
Date:   Tue Aug 12 15:59:05 2008 -0700

    ocfs2_controld: Notify dlm_controld when we have a node go down.
    
    ocfs2 must start recover before the dlm completes recovery.  Otherwise,
    the dlm might give out locks that belonged to the dead node before ocfs2
    has had a chance to replay its journal.
    
    libdlmcontrol implements this ordering.  When ocfs2_controld sees a node
    go down, it tells dlm_controld via dlmc_fs_notified().  dlm_controld
    responds with success if it also has seen the node go down.  It
    responds nonzero otherwise.  dlm_controld knows to wait until it has
    seen the notification from ocfs2_controld.
    
    The ocfs2_controld implementation is simple.  It first notifies ocfs2,
    then sends the notification to dlm_controld.  ocfs2_controld will keep
    resending it while dlm_controld responds in the negative.  When
    dlm_controld finally gets the node down event, ocfs2_controld will stop
    sending.  We keep such a simple busy-looping scheme because the
    back-and-forth traffic actually means context switches and process
    sleeping.
    
    Signed-off-by: Joel Becker <joel.becker at oracle.com>

commit 95d05e893adfae93b311d8350b336c9e5a56e613
Author: Joel Becker <joel.becker at oracle.com>
Date:   Tue Aug 12 15:09:15 2008 -0700

    ocfs2_controld: De-register all filesystems on exit.
    
    If we're exiting uncleanly, we'll have a list of registered filesystems.
    Send fire-and-forget unregister events to dlm_controld.
    
    Signed-off-by: Joel Becker <joel.becker at oracle.com>

-----------------------------------------------------------------------

Summary of changes:
 ocfs2_controld/dlmcontrol.c     |  135 ++++++++++++++++++++++++++++++++++++++-
 ocfs2_controld/mount.c          |    2 +
 ocfs2_controld/ocfs2_controld.h |    1 +
 3 files changed, 136 insertions(+), 2 deletions(-)


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Tools to manage the ocfs2 filesystem.