On 2/20/20 6:37 PM, Shin'ichiro Kawasaki wrote:
> Commit b72053072c0b ("block: allow partitions on host aware zone
> devices") introduced the helper function disk_has_partitions() to check
> if a given disk has valid partitions. However, since this function result
> directly depends on the disk partition table length rather than the
> actual existence of valid partitions in the table, it returns true even
> after all partitions are removed from the disk. For host aware zoned
> block devices, this results in zone management support to be kept
> disabled even after removing all partitions.
>
> Fix this by changing disk_has_partitions() to walk through the partition
> table entries and return true if and only if a valid non-zero size
> partition is found.
Applied for 5.6, thanks.
--
Jens Axboe
