[PATCH v2 0/3] Enable cached zone report

[Damien Le Moal <dlemoal@kernel.org>]

Enable cached zone report to speed up mkfs and repair on a zoned block
device (e.g. an SMR disk). Cached zone report support was introduced in
the kernel with version 6.19-rc1.  This was co-developped with
Christoph.

Darrick,

It may be cleaner to have a common report zones helper instead of
repating the same ioctl pattern in mkfs/xfs_mkfs.c and repair/zoned.c.
However, I am not sure where to place such helper. In libxfs/ or in
libfrog/ ? Please advise.

Thanks !

Changes from v1:
 - Fix erroneous handling of ioctl(BLKREPORTZONEV2) error to correctly
   fallback to the regular ioctl(BLKREPORTZONE) if the kernel does not
   support BLKREPORTZONEV2.

Damien Le Moal (3):
  libxfs: define BLKREPORTZONEV2 if the kernel does not provide it
  mkfs: use cached report zone
  repair: use cached report zone

 libxfs/topology.h | 8 ++++++++
 mkfs/xfs_mkfs.c   | 7 ++++++-
 repair/zoned.c    | 7 ++++++-
 3 files changed, 20 insertions(+), 2 deletions(-)

-- 
2.52.0