diff options
Diffstat (limited to 'mm/mprotect.c')
| -rw-r--r-- | mm/mprotect.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/mm/mprotect.c b/mm/mprotect.c index 5a688a2..a409926 100644 --- a/mm/mprotect.c +++ b/mm/mprotect.c @@ -60,7 +60,7 @@ static void change_pte_range(struct mm_struct *mm, pmd_t *pmd, ptent = pte_mkwrite(ptent); ptep_modify_prot_commit(mm, addr, pte, ptent); - } else if (PAGE_MIGRATION && !pte_file(oldpte)) { + } else if (IS_ENABLED(CONFIG_MIGRATION) && !pte_file(oldpte)) { swp_entry_t entry = pte_to_swp_entry(oldpte); if (is_write_migration_entry(entry)) { @@ -168,7 +168,7 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev, if (!(oldflags & (VM_ACCOUNT|VM_WRITE|VM_HUGETLB| VM_SHARED|VM_NORESERVE))) { charged = nrpages; - if (security_vm_enough_memory(charged)) + if (security_vm_enough_memory_mm(mm, charged)) return -ENOMEM; newflags |= VM_ACCOUNT; } @@ -262,10 +262,11 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len, down_write(¤t->mm->mmap_sem); - vma = find_vma_prev(current->mm, start, &prev); + vma = find_vma(current->mm, start); error = -ENOMEM; if (!vma) goto out; + prev = vma->vm_prev; if (unlikely(grows & PROT_GROWSDOWN)) { if (vma->vm_start >= end) goto out; |
