[PATCH 0/2] btrfs-progs: fix stale active zone after mkfs

On zoned devices, mkfs can leave a stale zone behind that is used as a
staging area but never reset. This zone is not backed by a chunk or
device extent, so the FS itself does not account it as used. On devices
that have a limitied active zone budget this can lead to premature
ENOSPC and/or an exhaustion of active zones.

Fix it in mkfs for new file-systems and also add a check to fsck to find
such zones and repair them with '--repair'.

Johannes Thumshirn (2):
  btrfs-progs: zoned: refresh stale cached zone state in
    btrfs_reset_dev_zone()
  btrfs-progs: check: detect leaked active zones on zoned devices

 check/main.c          | 154 +++++++++++++++++++++++++++++++++++++++++-
 kernel-shared/zoned.c |  18 ++++-
 2 files changed, 168 insertions(+), 4 deletions(-)

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2.55.0