Some of the highlights for the feature-rich Btrfs file-system in Linux 5.7 consist of:
- Speed-up of extent back reference resolution with an example test going "down from a hour to minutes."
- Preparation for zoned device support.
- An updated ioctl to delete sub-volumes.
- A leak detector for tree root structures.
- A per-inode file extent tree for in-memory tracking of contiguous extent ranges.
- Various fixes and other improvements.
The complete list of Btrfs changes for this cycle can be found via this pull request that is now part of mainline Git.
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