[PATCHv2] nvme: generate uevent once a multipath namespace is operational again

[Hannes Reinecke]

On 5/11/21 6:19 PM, Christoph Hellwig wrote:
> On Tue, May 11, 2021 at 10:03:08AM +0200, Hannes Reinecke wrote:
>> In an all paths down scenario I/O will be requeued or aborted, so no
>> further I/O will be ongoing on this namespace.
>> This leaves upper layers like MD unable to determine if the namespace
>> becomes operational again after a successful controller reset.
>> This patch will send an uevent per multipathed namespace once the
>> underlying controller is LIVE, allowing MD to start resync.
> 
> Can you please also add a comment why we are sending the event?
> 
You mean, why sending KOBJ_CHANGE and not KOBJ_ADD?

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                Kernel Storage Architect
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