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SubjectRe: [PATCH 1/2] md: make devices disappear when they are no longer needed.
On Mon, Nov 24, 2008 at 03:56:12PM +0900, Tejun Heo wrote:

> mddev holds module reference and till the gendisk is gone mddev won't
> be gone, so as long as gendisk is around the respective mddev and
> md.ko are around.

It doesn't and it *could* *not* - you can't drop the final reference to
module from within that module, period.

> I don't think it's necessary to allow modules to unload while devices
> are hot.

gendisk may stay referenced past the point when everything got closed
and unregistered.



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