Re: [PATCH v1 09/10] mm/memory_hotplug: Don't mark pages PG_reserved when initializing the memmap

2019-11-05 Thread Boris Ostrovsky
On 11/5/19 5:18 AM, David Hildenbrand wrote: > On 04.11.19 23:44, Boris Ostrovsky wrote: >> On 10/24/19 8:09 AM, David Hildenbrand wrote: >>> diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c >>> index 4f2e78a5e4db..af69f057913a 100644 >>> --- a/drivers/xen/balloon.c >>> +++

Re: [PATCH v1 09/10] mm/memory_hotplug: Don't mark pages PG_reserved when initializing the memmap

2019-11-05 Thread David Hildenbrand
On 04.11.19 23:44, Boris Ostrovsky wrote: On 10/24/19 8:09 AM, David Hildenbrand wrote: diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index 4f2e78a5e4db..af69f057913a 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -374,6 +374,13 @@ static void

Re: [PATCH v1 09/10] mm/memory_hotplug: Don't mark pages PG_reserved when initializing the memmap

2019-11-04 Thread Boris Ostrovsky
On 10/24/19 8:09 AM, David Hildenbrand wrote: > diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c > index 4f2e78a5e4db..af69f057913a 100644 > --- a/drivers/xen/balloon.c > +++ b/drivers/xen/balloon.c > @@ -374,6 +374,13 @@ static void xen_online_page(struct page *page, unsigned > int

[PATCH v1 09/10] mm/memory_hotplug: Don't mark pages PG_reserved when initializing the memmap

2019-10-24 Thread David Hildenbrand
Everything should be prepared to stop setting pages PG_reserved when initializing the memmap on memory hotplug. Most importantly, we stop marking ZONE_DEVICE pages PG_reserved. a) We made sure that any code that relied on PG_reserved to detect ZONE_DEVICE memory will no longer rely on