[0/2] Introduce bdev_zone_is_seq()

Message

Damien Le Moal Nov. 6, 2024, 11:13 p.m. UTC

Allow file systems to safely access a block device gendisk bitmap of
conventional zones to determine a zone type by:
1) Patch 1 - changing the gendisk conv_zones_bitmap to be RCU protected
2) Patch 2 - Introducing the helper function bdev_zone_is_seq()

This is in preparation for use in btrfs to remove the btrfs-managed
bitmap of conventional zones and in zoned support for xfs.

Damien Le Moal (2):
  block: RCU protect disk->conv_zones_bitmap
  block: Add a public bdev_zone_is_seq() helper

 block/blk-zoned.c      | 43 ++++++++++++++++++++++++------------------
 include/linux/blkdev.h | 28 ++++++++++++++++++++++++++-
 2 files changed, 52 insertions(+), 19 deletions(-)