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Larry M warned about this

Larry M warned about this

Posted Jun 19, 2003 16:16 UTC (Thu) by pflugstad (subscriber, #224)
Parent article: Big changes to ext3 and journaling

Sounds like this part of the code is falling into the ever increasing fine-grained locking that Larry M warned about...

A seperate question: does this matter on non-SMP, non-preemptable kernels,
or do all these locks go away (become no-ops) in that case?


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Larry M warned about this

Posted Jun 19, 2003 16:19 UTC (Thu) by corbet (editor, #1) [Link]

Spinlocks vanish entirely on uniprocessor kernels, so there will be no performance hit there.

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