[Ocfs2-commits] tag, ocfs2-1.4.11, created. ocfs2-1.4.8-55-ge2515e8

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The tag, ocfs2-1.4.11 has been created
        at  e2515e851c8a936a831ff611e8f741904cc9e1e6 (commit)

- Log -----------------------------------------------------------------
commit e2515e851c8a936a831ff611e8f741904cc9e1e6
Author: Srinivas Eeda <srinivas.eeda at oracle.com>
Date:   Wed Nov 12 23:23:08 2014 -0800

    o2dlm: fix a race between purge and master query
    
    Node A sends a master query request to node B which is the master. At this
    lockres happens to be on purgelist. dlm_master_request_handler gets the dlm
    spinlock, finds the resource and releases the dlm spin lock. Right at this
    dlm_thread on this node could purge the lockres. dlm_master_request_handler
    can then acquire lockres spinlock and reply to Node A that node B is the
    master even though lockres on node B is purged.
    
    The above scenario will now make node B falsely think node A is the master.
    
    Orabug 14613085
    
    Signed-off-by: Srinivas Eeda <srinivas.eeda at oracle.com>
    Reviewed-by: Wengang Wang <wen.gang.wang at oracle.com>
    Signed-off-by: Guangyu Sun <guangyu.sun at oracle.com>
    Signed-off-by: Srinivas Eeda <srinivas.eeda at oracle.com>
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