[Dovecot] double write-locking dovecot.index.log

[Mike Abbott]

On Apr 14, 2010, at 9:25 PM, Mike Abbott wrote:

> Dovecot's transactions often write-lock dovecot.index.log twice (without unlocking in between), and then unlock it twice.  Is that intended, or is that a bug?

Turns out it was a misunderstanding.  No such double locking occurs.  When the log file rotates locking does occur on a file with the same name but the descriptor (which is what matters to the file locking code) is different.  False alarm.