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Instead of transitioning to RECOVER state from CHECKPOINT when a recovery is required, perform the recovery while holding the CHECKPOINT lock.

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dan
2010-05-06 18:48:27 +00:00
parent 5273f58f37
commit 65be0d8cce
6 changed files with 24 additions and 27 deletions
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doc/vfs-shm.txt
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@ -113,9 +113,7 @@ The following are the allowed lock transitions:
(11l) PENDING UNLOCK UNLOCK
(11m) PENDING CHECKPOINT CHECKPOINT
(11n) CHECKPOINT UNLOCK UNLOCK
(11o) CHECKPOINT RECOVER RECOVER
(11p) RECOVER READ READ
(11q) RECOVER CHECKPOINT CHECKPOINT
(11o) RECOVER READ READ
These 17 transitions are all that needs to be supported. The lock
manager implementation can assert that fact. The other 25 possible