Re: [PATCH 0/7] btrfs-progs: zoned: proper "mkfs.btrfs -b" support

[David Sterba <dsterba@suse.cz>]

On Mon, May 13, 2024 at 06:51:26PM -0600, Naohiro Aota wrote:
> mkfs.btrfs -b <byte_count> on a zoned device has several issues listed
> below.
> 
> - The FS size needs to be larger than minimal size that can host a btrfs,
>   but its calculation does not consider non-SINGLE profile
> - The calculation also does not ensure tree-log BG and data relocation BG
> - It allows creating a FS not aligned to the zone boundary
> - It resets all device zones beyond the specified length
> 
> This series fixes the issues with some cleanups.
> 
> Patches 1 to 3 are clean up patches, so they should not change the behavior.
> 
> Patches 4 to 6 address the issues and the last patch adds a test case.
> 
> Naohiro Aota (7):
>   btrfs-progs: rename block_count to byte_count
>   btrfs-progs: mkfs: remove duplicated device size check
>   btrfs-progs: mkfs: unify zoned mode minimum size calc into
>     btrfs_min_dev_size()
>   btrfs-progs: mkfs: fix minimum size calculation for zoned
>   btrfs-progs: mkfs: check if byte_count is zone size aligned
>   btrfs-progs: support byte length for zone resetting
>   btrfs-progs: add test for zone resetting

I did a quick CI check, the mkfs tests fails. You can open a pull
request to get your changes tested (it can be just for the testing
purpose, if you note that I'll skip it until the final version).

https://github.com/kdave/btrfs-progs/actions/runs/9081685951

There are also some compatibility build tests on older distros,

https://github.com/kdave/btrfs-progs/actions/runs/9081685969