On 15.03.21 14:26, David Hildenbrand wrote:
On 15.03.21 14:03, Kirill A. Shutemov wrote:
On Mon, Mar 15, 2021 at 01:25:40PM +0100, David Hildenbrand wrote:
On 15.03.21 13:22, Kirill A. Shutemov wrote:
On Mon, Mar 08, 2021 at 05:45:20PM +0100, David Hildenbrand wrote:
+
On 15.03.21 14:03, Kirill A. Shutemov wrote:
On Mon, Mar 15, 2021 at 01:25:40PM +0100, David Hildenbrand wrote:
On 15.03.21 13:22, Kirill A. Shutemov wrote:
On Mon, Mar 08, 2021 at 05:45:20PM +0100, David Hildenbrand wrote:
+ case -EHWPOISON: /* Skip over any poisoned
On Mon, Mar 15, 2021 at 01:25:40PM +0100, David Hildenbrand wrote:
> On 15.03.21 13:22, Kirill A. Shutemov wrote:
> > On Mon, Mar 08, 2021 at 05:45:20PM +0100, David Hildenbrand wrote:
> > > + case -EHWPOISON: /* Skip over any poisoned pages. */
> > > +
On 15.03.21 13:22, Kirill A. Shutemov wrote:
On Mon, Mar 08, 2021 at 05:45:20PM +0100, David Hildenbrand wrote:
+ case -EHWPOISON: /* Skip over any poisoned pages. */
+ start += PAGE_SIZE;
+ continue;
Why is it
On Mon, Mar 08, 2021 at 05:45:20PM +0100, David Hildenbrand wrote:
> + case -EHWPOISON: /* Skip over any poisoned pages. */
> + start += PAGE_SIZE;
> + continue;
Why is it good approach? It's not abvious to me.
--
On 08.03.21 17:45, David Hildenbrand wrote:
I. Background: Sparse Memory Mappings
When we manage sparse memory mappings dynamically in user space - also
sometimes involving MAP_NORESERVE - we want to dynamically populate/
discard memory inside such a sparse memory region. Example users are
On 09.03.21 08:35, Rolf Eike Beer wrote:
diff --git a/mm/internal.h b/mm/internal.h
index 9902648f2206..a5c4ed23b1db 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -340,6 +340,9 @@ void __vma_unlink_list(struct mm_struct *mm,
struct vm_area_struct *vma);
#ifdef CONFIG_MMU
extern long
diff --git a/mm/internal.h b/mm/internal.h
index 9902648f2206..a5c4ed23b1db 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -340,6 +340,9 @@ void __vma_unlink_list(struct mm_struct *mm,
struct vm_area_struct *vma);
#ifdef CONFIG_MMU
extern long populate_vma_page_range(struct vm_area_struct
I. Background: Sparse Memory Mappings
When we manage sparse memory mappings dynamically in user space - also
sometimes involving MAP_NORESERVE - we want to dynamically populate/
discard memory inside such a sparse memory region. Example users are
hypervisors (especially implementing memory
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