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Btrfs "CLEAR_FREE" Looks Like It Will Be Ready For Linux 6.16
The Btrfs file-system looks like its new 'CLEAR_FREE' feature will be ready to go for the upcoming Linux 6.16 kernel cycle.
David Sterba of SUSE has been working on the CLEAR_FREE patch series as a new kernel ioctl for clearing unused space in various manners. The patches have been queued into the Btrfs for-next Git branch and thus likely material for the upcoming merge window (Linux 6.16) barring any last minute issues or reservations from coming about. David Sterba explained in the prior patch series of this CLEAR_FREE functionality:"Add ioctl that is similar to FITRIM and in addition to trim can do also zeroing (either plain overwrite, or unmap the blocks if the device supports it) and secure erase.
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