diff options
Diffstat (limited to 'mm/hugetlb_vmemmap.c')
| -rw-r--r-- | mm/hugetlb_vmemmap.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/mm/hugetlb_vmemmap.c b/mm/hugetlb_vmemmap.c index 76682d1d79a7..4558b814ffab 100644 --- a/mm/hugetlb_vmemmap.c +++ b/mm/hugetlb_vmemmap.c @@ -483,6 +483,9 @@ int hugetlb_vmemmap_restore(const struct hstate *h, struct page *head) /* Return true iff a HugeTLB whose vmemmap should and can be optimized. */ static bool vmemmap_should_optimize(const struct hstate *h, const struct page *head) { + if (HPageVmemmapOptimized((struct page *)head)) + return false; + if (!READ_ONCE(vmemmap_optimize_enabled)) return false; @@ -572,6 +575,14 @@ void hugetlb_vmemmap_optimize(const struct hstate *h, struct page *head) SetHPageVmemmapOptimized(head); } +void hugetlb_vmemmap_optimize_folios(struct hstate *h, struct list_head *folio_list) +{ + struct folio *folio; + + list_for_each_entry(folio, folio_list, lru) + hugetlb_vmemmap_optimize(h, &folio->page); +} + static struct ctl_table hugetlb_vmemmap_sysctls[] = { { .procname = "hugetlb_optimize_vmemmap", |