linux-kernel - Re: [PATCH RFC] s390x/vmem: get rid of memory segment list

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Date:   Mon, 29 Jun 2020 13:55:37 +0200
From:   Heiko Carstens <heiko.carstens@...ibm.com>
To:     Gerald Schaefer <gerald.schaefer@...ibm.com>
Cc:     David Hildenbrand <david@...hat.com>, linux-kernel@...r.kernel.org,
        linux-s390@...r.kernel.org, linux-mm@...ck.org,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH RFC] s390x/vmem: get rid of memory segment list

On Fri, Jun 26, 2020 at 08:46:21PM +0200, Gerald Schaefer wrote:
> Verified with DCSS overlapping boot and standby memory, works fine.
> As expected, the error message changes, but I don't think that is a
> problem, as long as you also remove the old -ENOSPC case / comment
> in arch/s390/mm/extmem.c. It is actually more correct now I guess,
> -ENOSPC doesn't look like the correct return value anyway.
> 
> Thanks for cleaning up! Looks good to me, and removes > 100 LOC,
> unless Heiko remembers some other issues from ancient times.
> 
> Reviewed-by: Gerald Schaefer <gerald.schaefer@...ibm.com>
> Tested-by: Gerald Schaefer <gerald.schaefer@...ibm.com> [DCSS]

Looks good to me too. Gerald, thanks for looking and verifying this,
and David, thanks for providing the patch.

Applied.