Merge branch 'cached-zones' into for-6.19/block

This patch series implements a cached report zones using information
from the block layer zone write plugs and a new zone condition tracking.
This avoids having to execute slow report zones commands on the device
when for instance mounting file systems, which can significantly speed
things up, especially in setups with multiple SMR HDDs (e.g. a BTRFS
RAID volume).

The first patch improves handling of zone management commands. Patch 2
fixes zone resource updates and the following 3 patches cleanup the zone
code in preparation for introducing cached zone report support.
From patch 6 to 13, cached report zones is implemented and made
available to users with a new ioctl() command.

Finally, patches 14 and 15 introduce the use of cached report zones in
the mount operation of XFS and BTRFS.

Link: https://lore.kernel.org/linux-block/20251104212249.1075412-1-dlemoal@kernel.org/
Signed-off-by: Jens Axboe <axboe@kernel.dk>
* cached-zones:
  xfs: use blkdev_report_zones_cached()
  btrfs: use blkdev_report_zones_cached()
  block: add zone write plug condition to debugfs zone_wplugs
  block: improve zone_wplugs debugfs attribute output
  block: introduce BLKREPORTZONESV2 ioctl
  block: introduce blkdev_report_zones_cached()
  block: introduce blkdev_get_zone_info()
  block: refactor blkdev_report_zones() code
  block: track zone conditions
  block: use zone condition to determine conventional zones
  block: reorganize struct blk_zone_wplug
  block: introduce disk_report_zone()
  block: cleanup blkdev_report_zones()
  block: freeze queue when updating zone resources
  block: handle zone management operations completions