* wang.y...@zte.com.cn wrote:
> Hi Ingo,
>
> > * Yi Wang wrote:
> >
> > > We may get -Wmissing-prototypes warnings when building
> > > kernel with W=1, it's better to fix them as global function
> > > signature can be changed and caller who use the old unchanged
> > > prototypes will be
Linux marks pages that are logically offline via a page flag (map count).
Such pages e.g. include pages infated as part of a balloon driver or
pages that were not actually onlined when onlining the whole section.
While the hypervisor usually allows to read such inflated memory, we
basically read
The content of pages that are marked PG_offline is not of interest
(e.g. inflated by a balloon driver), let's skip these pages.
In saveable_highmem_page(), move the PageReserved() check to a new
check along with the PageOffline() check to separate it from the
swsusp checks.
Cc: "Rafael J.
Mark inflated and never onlined pages PG_offline, to tell the world that
the content is stale and should not be dumped.
Cc: Xavier Deguillard
Cc: Nadav Amit
Cc: Arnd Bergmann
Cc: Greg Kroah-Hartman
Cc: Julien Freche
Cc: Andrew Morton
Cc: Matthew Wilcox
Cc: Michal Hocko
Cc: "Michael S.
Let's use pfn_to_online_page() instead of pfn_to_page() when checking
for saveable pages to not save/restore offline memory sections.
Cc: "Rafael J. Wysocki"
Cc: Pavel Machek
Cc: Len Brown
Cc: Andrew Morton
Cc: Matthew Wilcox
Cc: Michal Hocko
Cc: "Michael S. Tsirkin"
Suggested-by: Michal
Mark inflated and never onlined pages PG_offline, to tell the world that
the content is stale and should not be dumped.
Cc: Boris Ostrovsky
Cc: Juergen Gross
Cc: Stefano Stabellini
Cc: Andrew Morton
Cc: Matthew Wilcox
Cc: Michal Hocko
Cc: "Michael S. Tsirkin"
Signed-off-by: David
Mark inflated and never onlined pages PG_offline, to tell the world that
the content is stale and should not be dumped.
Cc: "K. Y. Srinivasan"
Cc: Haiyang Zhang
Cc: Stephen Hemminger
Cc: Kairui Song
Cc: Vitaly Kuznetsov
Cc: Andrew Morton
Cc: Matthew Wilcox
Cc: Michal Hocko
Cc: "Michael S.
Right now, pages inflated as part of a balloon driver will be dumped
by dump tools like makedumpfile. While XEN is able to check in the
crash kernel whether a certain pfn is actuall backed by memory in the
hypervisor (see xen_oldmem_pfn_is_ram) and optimize this case, dumps of
other balloon
Right now, pages inflated as part of a balloon driver will be dumped
by dump tools like makedumpfile. While XEN is able to check in the
crash kernel whether a certain pfn is actually backed by memory in the
hypervisor (see xen_oldmem_pfn_is_ram) and optimize this case, dumps of
virtio-balloon,
PG_balloon was introduced to implement page migration/compaction for pages
inflated in virtio-balloon. Nowadays, it is only a marker that a page is
part of virtio-balloon and therefore logically offline.
We also want to make use of this flag in other balloon drivers - for
inflated pages or when
Commit b1123ea6d3b3 ("mm: balloon: use general non-lru movable page
feature") reworked balloon handling to make use of the general
non-lru movable page feature. The big comment block in
balloon_compaction.h contains quite some outdated information. Let's fix
this.
Cc: Andrew Morton
Cc: Matthew
We may get -Wmissing-prototypes warnings when building
kernel with W=1, it's better to fix them as global function
signature can be changed and caller who use the old unchanged
prototypes will be hosed.
This patch fixes most of -Wmissing-prototypes warnings which
are in the root directory of
On Mon, Oct 22, 2018 at 10:53:22PM +0530, Arun KS wrote:
> Remove managed_page_count_lock spinlock and instead use atomic
> variables.
>
> Suggested-by: Michal Hocko
> Suggested-by: Vlastimil Babka
> Signed-off-by: Arun KS
>
> ---
> As discussed here,
>
* Yi Wang wrote:
> We may get -Wmissing-prototypes warnings when building
> kernel with W=1, it's better to fix them as global function
> signature can be changed and caller who use the old unchanged
> prototypes will be hosed.
>
> This patch fixes most of -Wmissing-prototypes warnings which
>
在 2018年11月22日 15:42, Dave Young 写道:
> On 11/15/18 at 05:55pm, Lianbo Jiang wrote:
>> The upstream kernel can not accurately add the e820 reserved type to
>> kdump krenel e820 table.
>>
>> Kdump uses walk_iomem_res_desc() to iterate io resources, then adds
>> the matched resource ranges to the e820
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