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authorBorislav Petkov <bp@suse.de>2021-03-18 16:43:11 +0100
committerBorislav Petkov <bp@suse.de>2021-03-18 16:43:11 +0100
commitafb4a37778491eae010a43edebea32ff2d45f01c (patch)
treec40bcc6143e5542134477dd96a108d24b1f9074f /mm/memcontrol.c
parent229164175ff0c61ff581e6bf37fbfcb608b6e9bb (diff)
parent1e28eed17697bcf343c6743f0028cc3b5dd88bf0 (diff)
Merge tag 'v5.12-rc3' into x86/seves
Pick up dependent SEV-ES urgent changes which went into -rc3 to base new work ontop. Signed-off-by: Borislav Petkov <bp@suse.de>
Diffstat (limited to 'mm/memcontrol.c')
-rw-r--r--mm/memcontrol.c15
1 files changed, 6 insertions, 9 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 845eec01ef9d..e064ac0d850a 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -3287,24 +3287,21 @@ void obj_cgroup_uncharge(struct obj_cgroup *objcg, size_t size)
#endif /* CONFIG_MEMCG_KMEM */
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
/*
- * Because page_memcg(head) is not set on compound tails, set it now.
+ * Because page_memcg(head) is not set on tails, set it now.
*/
-void mem_cgroup_split_huge_fixup(struct page *head)
+void split_page_memcg(struct page *head, unsigned int nr)
{
struct mem_cgroup *memcg = page_memcg(head);
int i;
- if (mem_cgroup_disabled())
+ if (mem_cgroup_disabled() || !memcg)
return;
- for (i = 1; i < HPAGE_PMD_NR; i++) {
- css_get(&memcg->css);
- head[i].memcg_data = (unsigned long)memcg;
- }
+ for (i = 1; i < nr; i++)
+ head[i].memcg_data = head->memcg_data;
+ css_get_many(&memcg->css, nr - 1);
}
-#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
#ifdef CONFIG_MEMCG_SWAP
/**