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MCS locks and qspinlocks

MCS locks and qspinlocks

Posted Mar 21, 2014 0:29 UTC (Fri) by kevinm (guest, #69913)
In reply to: MCS locks and qspinlocks by corbet
Parent article: MCS locks and qspinlocks

Mutexes can't sleep while holding a spinlock, though.

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MCS locks and qspinlocks

Posted Mar 25, 2014 1:47 UTC (Tue) by joern (guest, #22392) [Link]

The array is not for processes holding a lock, but for processes sleeping on a lock. If it were for processes holding a lock, it wouldn't even be sufficient for regular spinlocks.


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