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Re: [Xen-devel] [PATCH v1 8/8] PM / Hibernate: exclude all PageOffline() pages
- To: William Kucharski <william.kucharski@xxxxxxxxxx>
- From: David Hildenbrand <david@xxxxxxxxxx>
- Date: Wed, 21 Nov 2018 13:21:08 +0100
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- Cc: Len Brown <len.brown@xxxxxxxxx>, Michal Hocko <mhocko@xxxxxxxx>, linux-pm@xxxxxxxxxxxxxxx, pv-drivers@xxxxxxxxxx, "Rafael J. Wysocki" <rjw@xxxxxxxxxxxxx>, linux-doc@xxxxxxxxxxxxxxx, kexec-ml <kexec@xxxxxxxxxxxxxxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, Matthew Wilcox <willy@xxxxxxxxxxxxx>, Linux-MM <linux-mm@xxxxxxxxx>, "Michael S. Tsirkin" <mst@xxxxxxxxxx>, Pavel Machek <pavel@xxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, devel@xxxxxxxxxxxxxxxxxxxxxx, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Wed, 21 Nov 2018 12:21:53 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Openpgp: preference=signencrypt
On 21.11.18 12:35, William Kucharski wrote:
> If you are adding PageOffline(page) to the condition list of the already
> existing if in
> saveable_highmem_page(), why explicitly add it as a separate statement in
> saveable_page()?
>
> It would seem more consistent to make the second check:
>
> - if (swsusp_page_is_forbidden(page) || swsusp_page_is_free(page))
> + if (swsusp_page_is_forbidden(page) || swsusp_page_is_free(page) ||
> + PageOffline(page))
>
> instead.
>
> It's admittedly a nit but it just seems cleaner to either do that or, if your
> intention
> was to separate the Page checks from the swsusp checks, to break the calls to
> PageReserved() and PageOffline() into their own check in
> saveable_highmem_page().
I'll split PageReserved() and PageOffline() off from the swsusp checks,
thanks for your comment!
>
> Thanks!
> -- Bill
--
Thanks,
David / dhildenb
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