On Thu, Mar 25, 2021 at 03:14:33PM +0800, Qu Wenruo wrote:
> Add extra sysfs interface features/supported_ro_sectorsize and
> features/supported_rw_sectorsize to indicate subpage support.
> Currently for supported_rw_sectorsize all architectures only have their
> PAGE_SIZE listed.
> While for supported_ro_sectorsize, for systems with 64K page size, 4K
> sectorsize is also supported.
> This new sysfs interface would help mkfs.btrfs to do more accurate
> warning.

I've reworded the changelog to reflect the code status, ie. just one
file and that the read-only support could do more than it's advertised
in the sysfs file and that this will change.

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