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2 Commits

Author SHA1 Message Date
David Teigland
475f230c60 dlm: fix unlock balance warnings 
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>
 2012-08-08 11:33:49 -05:00
David Teigland
e7fd41792f [DLM] The core of the DLM for GFS2/CLVM 
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>
 2006-01-18 09:30:29 +00:00