[PATCH 1/2] nvme-mpath: delete disk after last connection

[Daniel Wagner]

On Mon, Oct 05, 2020 at 02:44:59PM +0200, Hannes Reinecke wrote:
>  # cat /proc/mdstat
>  Personalities : [raid1]
>  md0 : active raid1 nvme5n1[1] nvme3n1[0]
>        64512 blocks super 1.2 [2/2] [UU]
> 
> Now delete all paths to one of the namespaces:
> 
>  # echo 1 > /sys/class/nvme/nvme3/delete_controller
>  # echo 1 > /sys/class/nvme/nvme4/delete_controller
> 
> We have no path, but mdstat says:
> 
>  # cat /proc/mdstat
>  Personalities : [raid1]
>  md0 : active (auto-read-only) raid1 nvme5n1[1]
>        64512 blocks super 1.2 [2/1] [_U]

Shouldn't there be nvme3n1 still listed?