diff options
Diffstat (limited to 'mm/memory.c')
-rw-r--r-- | mm/memory.c | 55 |
1 files changed, 27 insertions, 28 deletions
diff --git a/mm/memory.c b/mm/memory.c index 098f00d05461..93897f23cc11 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2054,7 +2054,7 @@ static inline int wp_page_reuse(struct mm_struct *mm, VM_BUG_ON_PAGE(PageAnon(page), page); mapping = page->mapping; unlock_page(page); - page_cache_release(page); + put_page(page); if ((dirtied || page_mkwrite) && mapping) { /* @@ -2188,7 +2188,7 @@ static int wp_page_copy(struct mm_struct *mm, struct vm_area_struct *vma, } if (new_page) - page_cache_release(new_page); + put_page(new_page); pte_unmap_unlock(page_table, ptl); mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end); @@ -2203,14 +2203,14 @@ static int wp_page_copy(struct mm_struct *mm, struct vm_area_struct *vma, munlock_vma_page(old_page); unlock_page(old_page); } - page_cache_release(old_page); + put_page(old_page); } return page_copied ? VM_FAULT_WRITE : 0; oom_free_new: - page_cache_release(new_page); + put_page(new_page); oom: if (old_page) - page_cache_release(old_page); + put_page(old_page); return VM_FAULT_OOM; } @@ -2258,7 +2258,7 @@ static int wp_page_shared(struct mm_struct *mm, struct vm_area_struct *vma, { int page_mkwrite = 0; - page_cache_get(old_page); + get_page(old_page); if (vma->vm_ops && vma->vm_ops->page_mkwrite) { int tmp; @@ -2267,7 +2267,7 @@ static int wp_page_shared(struct mm_struct *mm, struct vm_area_struct *vma, tmp = do_page_mkwrite(vma, old_page, address); if (unlikely(!tmp || (tmp & (VM_FAULT_ERROR | VM_FAULT_NOPAGE)))) { - page_cache_release(old_page); + put_page(old_page); return tmp; } /* @@ -2281,7 +2281,7 @@ static int wp_page_shared(struct mm_struct *mm, struct vm_area_struct *vma, if (!pte_same(*page_table, orig_pte)) { unlock_page(old_page); pte_unmap_unlock(page_table, ptl); - page_cache_release(old_page); + put_page(old_page); return 0; } page_mkwrite = 1; @@ -2341,7 +2341,7 @@ static int do_wp_page(struct mm_struct *mm, struct vm_area_struct *vma, */ if (PageAnon(old_page) && !PageKsm(old_page)) { if (!trylock_page(old_page)) { - page_cache_get(old_page); + get_page(old_page); pte_unmap_unlock(page_table, ptl); lock_page(old_page); page_table = pte_offset_map_lock(mm, pmd, address, @@ -2349,10 +2349,10 @@ static int do_wp_page(struct mm_struct *mm, struct vm_area_struct *vma, if (!pte_same(*page_table, orig_pte)) { unlock_page(old_page); pte_unmap_unlock(page_table, ptl); - page_cache_release(old_page); + put_page(old_page); return 0; } - page_cache_release(old_page); + put_page(old_page); } if (reuse_swap_page(old_page)) { /* @@ -2375,7 +2375,7 @@ static int do_wp_page(struct mm_struct *mm, struct vm_area_struct *vma, /* * Ok, we need to copy. Oh, well.. */ - page_cache_get(old_page); + get_page(old_page); pte_unmap_unlock(page_table, ptl); return wp_page_copy(mm, vma, address, page_table, pmd, @@ -2400,7 +2400,6 @@ static inline void unmap_mapping_range_tree(struct rb_root *root, vba = vma->vm_pgoff; vea = vba + vma_pages(vma) - 1; - /* Assume for now that PAGE_CACHE_SHIFT == PAGE_SHIFT */ zba = details->first_index; if (zba < vba) zba = vba; @@ -2619,7 +2618,7 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma, * parallel locked swapcache. */ unlock_page(swapcache); - page_cache_release(swapcache); + put_page(swapcache); } if (flags & FAULT_FLAG_WRITE) { @@ -2641,10 +2640,10 @@ out_nomap: out_page: unlock_page(page); out_release: - page_cache_release(page); + put_page(page); if (page != swapcache) { unlock_page(swapcache); - page_cache_release(swapcache); + put_page(swapcache); } return ret; } @@ -2752,7 +2751,7 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma, if (userfaultfd_missing(vma)) { pte_unmap_unlock(page_table, ptl); mem_cgroup_cancel_charge(page, memcg, false); - page_cache_release(page); + put_page(page); return handle_userfault(vma, address, flags, VM_UFFD_MISSING); } @@ -2771,10 +2770,10 @@ unlock: return 0; release: mem_cgroup_cancel_charge(page, memcg, false); - page_cache_release(page); + put_page(page); goto unlock; oom_free_page: - page_cache_release(page); + put_page(page); oom: return VM_FAULT_OOM; } @@ -2807,7 +2806,7 @@ static int __do_fault(struct vm_area_struct *vma, unsigned long address, if (unlikely(PageHWPoison(vmf.page))) { if (ret & VM_FAULT_LOCKED) unlock_page(vmf.page); - page_cache_release(vmf.page); + put_page(vmf.page); return VM_FAULT_HWPOISON; } @@ -2996,7 +2995,7 @@ static int do_read_fault(struct mm_struct *mm, struct vm_area_struct *vma, if (unlikely(!pte_same(*pte, orig_pte))) { pte_unmap_unlock(pte, ptl); unlock_page(fault_page); - page_cache_release(fault_page); + put_page(fault_page); return ret; } do_set_pte(vma, address, fault_page, pte, false, false); @@ -3024,7 +3023,7 @@ static int do_cow_fault(struct mm_struct *mm, struct vm_area_struct *vma, return VM_FAULT_OOM; if (mem_cgroup_try_charge(new_page, mm, GFP_KERNEL, &memcg, false)) { - page_cache_release(new_page); + put_page(new_page); return VM_FAULT_OOM; } @@ -3041,7 +3040,7 @@ static int do_cow_fault(struct mm_struct *mm, struct vm_area_struct *vma, pte_unmap_unlock(pte, ptl); if (fault_page) { unlock_page(fault_page); - page_cache_release(fault_page); + put_page(fault_page); } else { /* * The fault handler has no page to lock, so it holds @@ -3057,7 +3056,7 @@ static int do_cow_fault(struct mm_struct *mm, struct vm_area_struct *vma, pte_unmap_unlock(pte, ptl); if (fault_page) { unlock_page(fault_page); - page_cache_release(fault_page); + put_page(fault_page); } else { /* * The fault handler has no page to lock, so it holds @@ -3068,7 +3067,7 @@ static int do_cow_fault(struct mm_struct *mm, struct vm_area_struct *vma, return ret; uncharge_out: mem_cgroup_cancel_charge(new_page, memcg, false); - page_cache_release(new_page); + put_page(new_page); return ret; } @@ -3096,7 +3095,7 @@ static int do_shared_fault(struct mm_struct *mm, struct vm_area_struct *vma, tmp = do_page_mkwrite(vma, fault_page, address); if (unlikely(!tmp || (tmp & (VM_FAULT_ERROR | VM_FAULT_NOPAGE)))) { - page_cache_release(fault_page); + put_page(fault_page); return tmp; } } @@ -3105,7 +3104,7 @@ static int do_shared_fault(struct mm_struct *mm, struct vm_area_struct *vma, if (unlikely(!pte_same(*pte, orig_pte))) { pte_unmap_unlock(pte, ptl); unlock_page(fault_page); - page_cache_release(fault_page); + put_page(fault_page); return ret; } do_set_pte(vma, address, fault_page, pte, true, false); @@ -3736,7 +3735,7 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm, buf, maddr + offset, bytes); } kunmap(page); - page_cache_release(page); + put_page(page); } len -= bytes; buf += bytes; |