btrfs: zoned: document RECLAIM_ZONES flush state

Document the purpose of the RECLAIM_ZONES flush state.

Reviewed-by: Boris Burkov <boris@bur.io>
Reviewed-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Johannes Thumshirn 2026-05-22 11:02:43 +02:00 • committed by Filipe Manana
commit 967c1716eb