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Josef Bacik authored
I screwed this up, there is a race between checking if there is a running transaction and actually starting a transaction in sync where we could race with a freezer and get ourselves into trouble. To fix this we need to make a new join type to only do the try lock on the freeze stuff. If it fails we'll return EPERM and just return from sync. This fixes a hang Liu Bo reported when running xfstest 68 in a loop. Thanks, Reported-by:
Liu Bo <bo.li.liu@oracle.com> Signed-off-by:
Josef Bacik <jbacik@fusionio.com>
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