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* dlm: fix unlock balance warningsDavid Teigland2012-08-081-1/+0
| | | | | | | | | | The in_recovery rw_semaphore has always been acquired and released by different threads by design. To work around the "BUG: bad unlock balance detected!" messages, adjust things so the dlm_recoverd thread always does both down_write and up_write. Signed-off-by: David Teigland <teigland@redhat.com>
* [DLM] The core of the DLM for GFS2/CLVMDavid Teigland2006-01-181-0/+24
This is the core of the distributed lock manager which is required to use GFS2 as a cluster filesystem. It is also used by CLVM and can be used as a standalone lock manager independantly of either of these two projects. It implements VAX-style locking modes. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steve Whitehouse <swhiteho@redhat.com>