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Bob Peterson authored
This patch changes the flock code so that it uses the TRY_1CB flag instead of the TRY flag on the first attempt. That forces any holding nodes to issue a dlm callback, which requests a demote of the glock. Then, if the "try" failed, it sleeps a small amount of time for the demote to occur. Then it tries again, for an increasing amount of time. Subsequent attempts to gain the "try" lock don't use "_1CB" so that only one callback is issued. Signed-off-by:
Bob Peterson <rpeterso@redhat.com> Signed-off-by:
Steven Whitehouse <swhiteho@redhat.com>
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