Re: [RFC v2 07/10] nvme: enhance max supported LBA format check

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On Fri, Sep 15, 2023 at 11:20:39PM +0100, Matthew Wilcox wrote:
> On Fri, Sep 15, 2023 at 02:32:51PM -0700, Luis Chamberlain wrote:
> > +/* XXX: shift 20 (1 MiB LBA) crashes on pure-iomap */
> I imagine somewhere we do a PAGE_SIZE << 20 and it overflows an int to 0.
> I've been trying to use size_t everywhere, but we probably missed
> something.
> Does 19 work on a machine with 64kB pages?  My guess is no.

Let's ask someone who *might* have access to a 64k PAGE_SIZE system or
might know someone who does.

I definitely don't!


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