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Diffstat (limited to 'mm')
-rw-r--r--mm/huge_memory.c4
-rw-r--r--mm/hugetlb.c5
-rw-r--r--mm/madvise.c1
-rw-r--r--mm/memory.c7
4 files changed, 16 insertions, 1 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 0103728ffa94..26fd1161ca85 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1323,6 +1323,8 @@ bool madvise_free_huge_pmd(struct mmu_gather *tlb, struct vm_area_struct *vma,
struct mm_struct *mm = tlb->mm;
bool ret = false;
+ tlb_remove_check_page_size_change(tlb, HPAGE_PMD_SIZE);
+
ptl = pmd_trans_huge_lock(pmd, vma);
if (!ptl)
goto out_unlocked;
@@ -1384,6 +1386,8 @@ int zap_huge_pmd(struct mmu_gather *tlb, struct vm_area_struct *vma,
pmd_t orig_pmd;
spinlock_t *ptl;
+ tlb_remove_check_page_size_change(tlb, HPAGE_PMD_SIZE);
+
ptl = __pmd_trans_huge_lock(pmd, vma);
if (!ptl)
return 0;
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 8e519da7242d..3edb759c5c7d 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -3286,6 +3286,11 @@ void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
BUG_ON(start & ~huge_page_mask(h));
BUG_ON(end & ~huge_page_mask(h));
+ /*
+ * This is a hugetlb vma, all the pte entries should point
+ * to huge page.
+ */
+ tlb_remove_check_page_size_change(tlb, sz);
tlb_start_vma(tlb, vma);
mmu_notifier_invalidate_range_start(mm, mmun_start, mmun_end);
address = start;
diff --git a/mm/madvise.c b/mm/madvise.c
index 93fb63e88b5e..0e3828eae9f8 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -281,6 +281,7 @@ static int madvise_free_pte_range(pmd_t *pmd, unsigned long addr,
if (pmd_trans_unstable(pmd))
return 0;
+ tlb_remove_check_page_size_change(tlb, PAGE_SIZE);
orig_pte = pte = pte_offset_map_lock(mm, pmd, addr, &ptl);
arch_enter_lazy_mmu_mode();
for (; addr != end; pte++, addr += PAGE_SIZE) {
diff --git a/mm/memory.c b/mm/memory.c
index d86b7b4afd7d..eae20eb66bfc 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -528,7 +528,11 @@ void free_pgd_range(struct mmu_gather *tlb,
end -= PMD_SIZE;
if (addr > end - 1)
return;
-
+ /*
+ * We add page table cache pages with PAGE_SIZE,
+ * (see pte_free_tlb()), flush the tlb if we need
+ */
+ tlb_remove_check_page_size_change(tlb, PAGE_SIZE);
pgd = pgd_offset(tlb->mm, addr);
do {
next = pgd_addr_end(addr, end);
@@ -1120,6 +1124,7 @@ static unsigned long zap_pte_range(struct mmu_gather *tlb,
swp_entry_t entry;
struct page *pending_page = NULL;
+ tlb_remove_check_page_size_change(tlb, PAGE_SIZE);
again:
init_rss_vec(rss);
start_pte = pte_offset_map_lock(mm, pmd, addr, &ptl);