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Punching holes in filesPunching holes in filesPosted Nov 18, 2010 13:53 UTC (Thu) by stefanha (subscriber, #55072)In reply to: Punching holes in files by Tomasu Parent article: Punching holes in files
I was asking about the FITRIM ioctl in particular, which I thought might serve a similar purpose. After some more digging, the best explanation seems to be:
http://lwn.net/Articles/397538/
FITRIM will only discard freed blocks in a filesystem. It does not punch new holes in a particular file.
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