Would that work on a filesystem that supports sparse files? | Hacker News

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		pixl97 on March 26, 2020 \| parent \| context \| favorite \| on: WD Passport 4TB drives don't support WRITE SAME co... Would that work on a filesystem that supports sparse files?

throwaway373438 on March 26, 2020 | [–]

We're talking about the filesystem driver itself issuing the write.

The above is a discussion about whether the filesystem driver or the block device driver would issue the SCSI commands.

This would never happen from userspace.

tedunangst on March 26, 2020 | [–]

Why would you need to overwrite blocks of a sparse file? Which blocks would you be overwriting?

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