> Aggregating that info upwards whenever a file is created or renamed (let a... | Hacker News

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adgar on Jan 17, 2012 | parent | context | favorite | on: Building the next generation file system for Windo...

> Aggregating that info upwards whenever a file is created or renamed (let alone deleted) cannot come for free, can it?

Not free, but it's not asymptotically significant.

tlb on Jan 17, 2012 [–]

Even when you reparent a directory? Reparenting a directory to a longer prefix would have to sometimes fail.

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