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mirror of git://sourceware.org/git/lvm2.git synced 2025-01-19 14:04:17 +03:00
Zdenek Kabelac 4459413225 clvmd: singlenode signals only when lock changes
There is no benefit in waking-up all the waiters
when there is no actual change in lock state.
This avoid some unnecessarily ping-pong effects like:

 Resource V_LVMTEST15724vg retrying lock in mode:WRITE...
 Resource V_LVMTEST15724vg already locked lockid=40, mode:WRITE
 Resource V_LVMTEST15724vg retrying lock in mode:WRITE...
 Resource V_LVMTEST15724vg already locked lockid=40, mode:WRITE
2015-04-08 23:19:34 +02:00
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