Displaying 7 results from an estimated 7 matches for "nr_anon_thp".
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nr_anon_thps
2020 Sep 03
1
[PATCH v3] mm/thp: fix __split_huge_pmd_locked() for migration PMD
...(page)) {
- for (i = 0; i < HPAGE_PMD_NR; i++)
+ if (!pmd_migration)
atomic_inc(&page[i]._mapcount);
+ pte_unmap(pte);
}
- lock_page_memcg(page);
- if (atomic_add_negative(-1, compound_mapcount_ptr(page))) {
- /* Last compound_mapcount is gone. */
- __dec_lruvec_page_state(page, NR_ANON_THPS);
- if (TestClearPageDoubleMap(page)) {
- /* No need in mapcount reference anymore */
+ if (!pmd_migration) {
+ /*
+ * Set PG_double_map before dropping compound_mapcount to avoid
+ * false-negative page_mapped().
+ */
+ if (compound_mapcount(page) > 1 &&
+ !TestSetPageD...
2020 Sep 02
0
[PATCH v2 1/7] mm/thp: fix __split_huge_pmd_locked() for migration PMD
...(page)) {
- for (i = 0; i < HPAGE_PMD_NR; i++)
+ if (!pmd_migration)
atomic_inc(&page[i]._mapcount);
+ pte_unmap(pte);
}
- lock_page_memcg(page);
- if (atomic_add_negative(-1, compound_mapcount_ptr(page))) {
- /* Last compound_mapcount is gone. */
- __dec_lruvec_page_state(page, NR_ANON_THPS);
- if (TestClearPageDoubleMap(page)) {
- /* No need in mapcount reference anymore */
+ if (!pmd_migration) {
+ /*
+ * Set PG_double_map before dropping compound_mapcount to avoid
+ * false-negative page_mapped().
+ */
+ if (compound_mapcount(page) > 1 &&
+ !TestSetPageD...
2020 Sep 02
1
[PATCH v2 1/7] mm/thp: fix __split_huge_pmd_locked() for migration PMD
...R; i++)
> + if (!pmd_migration)
> atomic_inc(&page[i]._mapcount);
> + pte_unmap(pte);
> }
>
> - lock_page_memcg(page);
> - if (atomic_add_negative(-1, compound_mapcount_ptr(page))) {
> - /* Last compound_mapcount is gone. */
> - __dec_lruvec_page_state(page, NR_ANON_THPS);
> - if (TestClearPageDoubleMap(page)) {
> - /* No need in mapcount reference anymore */
> + if (!pmd_migration) {
> + /*
> + * Set PG_double_map before dropping compound_mapcount to avoid
> + * false-negative page_mapped().
> + */
> + if (compound_mapcount(page...
2020 Sep 02
10
[PATCH v2 0/7] mm/hmm/nouveau: add THP migration to migrate_vma_*
This series adds support for transparent huge page migration to
migrate_vma_*() and adds nouveau SVM and HMM selftests as consumers.
An earlier version was posted previously [1]. This version now
supports splitting a THP midway in the migration process which
led to a number of changes.
The patches apply cleanly to the current linux-mm tree. Since there
are a couple of patches in linux-mm from Dan
2019 Aug 09
6
[RFC PATCH v6 71/92] mm: add support for remote mapping
...ddress of the mapping
+ * @address: User virtual address of the mapping
* @exclusive: the page is exclusively owned by the current process
*/
static void __page_set_anon_rmap(struct page *page,
@@ -1125,7 +1126,8 @@ void do_page_add_anon_rmap(struct page *page,
__inc_node_page_state(page, NR_ANON_THPS);
__mod_node_page_state(page_pgdat(page), NR_ANON_MAPPED, nr);
}
- if (unlikely(PageKsm(page)))
+
+ if (unlikely(PageKsm(page) || PageRemote(page)))
return;
VM_BUG_ON_PAGE(!PageLocked(page), page);
@@ -1897,6 +1899,8 @@ void rmap_walk(struct page *page, struct rmap_walk_control *rwc)...
2019 Aug 09
117
[RFC PATCH v6 00/92] VM introspection
The KVM introspection subsystem provides a facility for applications running
on the host or in a separate VM, to control the execution of other VM-s
(pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.),
alter the page access bits in the shadow page tables (only for the hardware
backed ones, eg. Intel's EPT) and receive notifications when events of
interest have taken place
2019 Aug 09
117
[RFC PATCH v6 00/92] VM introspection
The KVM introspection subsystem provides a facility for applications running
on the host or in a separate VM, to control the execution of other VM-s
(pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.),
alter the page access bits in the shadow page tables (only for the hardware
backed ones, eg. Intel's EPT) and receive notifications when events of
interest have taken place