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Diffstat (limited to 'mm')
-rw-r--r--mm/memory.c36
1 files changed, 23 insertions, 13 deletions
diff --git a/mm/memory.c b/mm/memory.c
index 854bd90eeca..6bad4c4064e 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -190,7 +190,7 @@ static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
*
* Must be called with pagetable lock held.
*/
-static inline void free_pgd_range(struct mmu_gather *tlb,
+void free_pgd_range(struct mmu_gather **tlb,
unsigned long addr, unsigned long end,
unsigned long floor, unsigned long ceiling)
{
@@ -241,37 +241,47 @@ static inline void free_pgd_range(struct mmu_gather *tlb,
return;
start = addr;
- pgd = pgd_offset(tlb->mm, addr);
+ pgd = pgd_offset((*tlb)->mm, addr);
do {
next = pgd_addr_end(addr, end);
if (pgd_none_or_clear_bad(pgd))
continue;
- free_pud_range(tlb, pgd, addr, next, floor, ceiling);
+ free_pud_range(*tlb, pgd, addr, next, floor, ceiling);
} while (pgd++, addr = next, addr != end);
- if (!tlb_is_full_mm(tlb))
- flush_tlb_pgtables(tlb->mm, start, end);
+ if (!tlb_is_full_mm(*tlb))
+ flush_tlb_pgtables((*tlb)->mm, start, end);
}
void free_pgtables(struct mmu_gather **tlb, struct vm_area_struct *vma,
- unsigned long floor, unsigned long ceiling)
+ unsigned long floor, unsigned long ceiling)
{
while (vma) {
struct vm_area_struct *next = vma->vm_next;
unsigned long addr = vma->vm_start;
- /* Optimization: gather nearby vmas into a single call down */
- while (next && next->vm_start <= vma->vm_end + PMD_SIZE) {
- vma = next;
- next = vma->vm_next;
- }
- free_pgd_range(*tlb, addr, vma->vm_end,
+ if (is_hugepage_only_range(vma->vm_mm, addr, HPAGE_SIZE)) {
+ hugetlb_free_pgd_range(tlb, addr, vma->vm_end,
+ floor, next? next->vm_start: ceiling);
+ } else {
+ /*
+ * Optimization: gather nearby vmas into one call down
+ */
+ while (next && next->vm_start <= vma->vm_end + PMD_SIZE
+ && !is_hugepage_only_range(vma->vm_mm, next->vm_start,
+ HPAGE_SIZE)) {
+ vma = next;
+ next = vma->vm_next;
+ }
+ free_pgd_range(tlb, addr, vma->vm_end,
floor, next? next->vm_start: ceiling);
+ }
vma = next;
}
}
-pte_t fastcall * pte_alloc_map(struct mm_struct *mm, pmd_t *pmd, unsigned long address)
+pte_t fastcall *pte_alloc_map(struct mm_struct *mm, pmd_t *pmd,
+ unsigned long address)
{
if (!pmd_present(*pmd)) {
struct page *new;