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

		throwaway373438 on March 26, 2020 \| parent \| context \| favorite \| on: WD Passport 4TB drives don't support WRITE SAME co... 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.