[PATCH] ctdb-locking: Use real-time only for actual record or DB locking

[Amitay Isaacs]

Hi,

Use real-time priority only for obtaining record and database locks.
Do not open databases with real-time priority as it can cause thundering
herd on fcntl lock while opening tdb database.  Also relinquish real-time
priority after the lock is obtained.

Please review and push.

Amitay.
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