Merge 4.6-rc3 into staging-next

This resolves a lot of merge issues with PAGE_CACHE_* changes, and an
iio driver merge issue.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

23 files changed, 252 insertions, 263 deletions

diff --git a/mm/fadvise.c b/mm/fadvise.c
index b8a5bc66b0c0..b8024fa7101d 100644
--- a/mm/fadvise.c
+++ b/mm/fadvise.c
@@ -97,8 +97,8 @@ SYSCALL_DEFINE4(fadvise64_64, int, fd, loff_t, offset, loff_t, len, int, advice)
 		break;
 	case POSIX_FADV_WILLNEED:
 		/* First and last PARTIAL page! */
-		start_index = offset >> PAGE_CACHE_SHIFT;
-		end_index = endbyte >> PAGE_CACHE_SHIFT;
+		start_index = offset >> PAGE_SHIFT;
+		end_index = endbyte >> PAGE_SHIFT;
 
 		/* Careful about overflow on the "+1" */
 		nrpages = end_index - start_index + 1;
@@ -124,8 +124,8 @@ SYSCALL_DEFINE4(fadvise64_64, int, fd, loff_t, offset, loff_t, len, int, advice)
 		 * preserved on the expectation that it is better to preserve
 		 * needed memory than to discard unneeded memory.
 		 */
-		start_index = (offset+(PAGE_CACHE_SIZE-1)) >> PAGE_CACHE_SHIFT;
-		end_index = (endbyte >> PAGE_CACHE_SHIFT);
+		start_index = (offset+(PAGE_SIZE-1)) >> PAGE_SHIFT;
+		end_index = (endbyte >> PAGE_SHIFT);
 
 		if (end_index >= start_index) {
 			unsigned long count = invalidate_mapping_pages(mapping,
diff --git a/mm/filemap.c b/mm/filemap.c
index a8c69c8c0a90..f2479af09da9 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -265,7 +265,7 @@ void delete_from_page_cache(struct page *page)
 
 	if (freepage)
 		freepage(page);
-	page_cache_release(page);
+	put_page(page);
 }
 EXPORT_SYMBOL(delete_from_page_cache);
 
@@ -352,8 +352,8 @@ EXPORT_SYMBOL(filemap_flush);
 static int __filemap_fdatawait_range(struct address_space *mapping,
 				     loff_t start_byte, loff_t end_byte)
 {
-	pgoff_t index = start_byte >> PAGE_CACHE_SHIFT;
-	pgoff_t end = end_byte >> PAGE_CACHE_SHIFT;
+	pgoff_t index = start_byte >> PAGE_SHIFT;
+	pgoff_t end = end_byte >> PAGE_SHIFT;
 	struct pagevec pvec;
 	int nr_pages;
 	int ret = 0;
@@ -550,7 +550,7 @@ int replace_page_cache_page(struct page *old, struct page *new, gfp_t gfp_mask)
 		pgoff_t offset = old->index;
 		freepage = mapping->a_ops->freepage;
 
-		page_cache_get(new);
+		get_page(new);
 		new->mapping = mapping;
 		new->index = offset;
 
@@ -572,7 +572,7 @@ int replace_page_cache_page(struct page *old, struct page *new, gfp_t gfp_mask)
 		radix_tree_preload_end();
 		if (freepage)
 			freepage(old);
-		page_cache_release(old);
+		put_page(old);
 	}
 
 	return error;
@@ -651,7 +651,7 @@ static int __add_to_page_cache_locked(struct page *page,
 		return error;
 	}
 
-	page_cache_get(page);
+	get_page(page);
 	page->mapping = mapping;
 	page->index = offset;
 
@@ -675,7 +675,7 @@ err_insert:
 	spin_unlock_irq(&mapping->tree_lock);
 	if (!huge)
 		mem_cgroup_cancel_charge(page, memcg, false);
-	page_cache_release(page);
+	put_page(page);
 	return error;
 }
 
@@ -1083,7 +1083,7 @@ repeat:
 		 * include/linux/pagemap.h for details.
 		 */
 		if (unlikely(page != *pagep)) {
-			page_cache_release(page);
+			put_page(page);
 			goto repeat;
 		}
 	}
@@ -1121,7 +1121,7 @@ repeat:
 		/* Has the page been truncated? */
 		if (unlikely(page->mapping != mapping)) {
 			unlock_page(page);
-			page_cache_release(page);
+			put_page(page);
 			goto repeat;
 		}
 		VM_BUG_ON_PAGE(page->index != offset, page);
@@ -1168,7 +1168,7 @@ repeat:
 	if (fgp_flags & FGP_LOCK) {
 		if (fgp_flags & FGP_NOWAIT) {
 			if (!trylock_page(page)) {
-				page_cache_release(page);
+				put_page(page);
 				return NULL;
 			}
 		} else {
@@ -1178,7 +1178,7 @@ repeat:
 		/* Has the page been truncated? */
 		if (unlikely(page->mapping != mapping)) {
 			unlock_page(page);
-			page_cache_release(page);
+			put_page(page);
 			goto repeat;
 		}
 		VM_BUG_ON_PAGE(page->index != offset, page);
@@ -1209,7 +1209,7 @@ no_page:
 		err = add_to_page_cache_lru(page, mapping, offset,
 				gfp_mask & GFP_RECLAIM_MASK);
 		if (unlikely(err)) {
-			page_cache_release(page);
+			put_page(page);
 			page = NULL;
 			if (err == -EEXIST)
 				goto repeat;
@@ -1278,7 +1278,7 @@ repeat:
 
 		/* Has the page moved? */
 		if (unlikely(page != *slot)) {
-			page_cache_release(page);
+			put_page(page);
 			goto repeat;
 		}
 export:
@@ -1343,7 +1343,7 @@ repeat:
 
 		/* Has the page moved? */
 		if (unlikely(page != *slot)) {
-			page_cache_release(page);
+			put_page(page);
 			goto repeat;
 		}
 
@@ -1405,7 +1405,7 @@ repeat:
 
 		/* Has the page moved? */
 		if (unlikely(page != *slot)) {
-			page_cache_release(page);
+			put_page(page);
 			goto repeat;
 		}
 
@@ -1415,7 +1415,7 @@ repeat:
 		 * negatives, which is just confusing to the caller.
 		 */
 		if (page->mapping == NULL || page->index != iter.index) {
-			page_cache_release(page);
+			put_page(page);
 			break;
 		}
 
@@ -1482,7 +1482,7 @@ repeat:
 
 		/* Has the page moved? */
 		if (unlikely(page != *slot)) {
-			page_cache_release(page);
+			put_page(page);
 			goto repeat;
 		}
 
@@ -1549,7 +1549,7 @@ repeat:
 
 		/* Has the page moved? */
 		if (unlikely(page != *slot)) {
-			page_cache_release(page);
+			put_page(page);
 			goto repeat;
 		}
 export:
@@ -1610,11 +1610,11 @@ static ssize_t do_generic_file_read(struct file *filp, loff_t *ppos,
 	unsigned int prev_offset;
 	int error = 0;
 
-	index = *ppos >> PAGE_CACHE_SHIFT;
-	prev_index = ra->prev_pos >> PAGE_CACHE_SHIFT;
-	prev_offset = ra->prev_pos & (PAGE_CACHE_SIZE-1);
-	last_index = (*ppos + iter->count + PAGE_CACHE_SIZE-1) >> PAGE_CACHE_SHIFT;
-	offset = *ppos & ~PAGE_CACHE_MASK;
+	index = *ppos >> PAGE_SHIFT;
+	prev_index = ra->prev_pos >> PAGE_SHIFT;
+	prev_offset = ra->prev_pos & (PAGE_SIZE-1);
+	last_index = (*ppos + iter->count + PAGE_SIZE-1) >> PAGE_SHIFT;
+	offset = *ppos & ~PAGE_MASK;
 
 	for (;;) {
 		struct page *page;
@@ -1648,7 +1648,7 @@ find_page:
 			if (PageUptodate(page))
 				goto page_ok;
 
-			if (inode->i_blkbits == PAGE_CACHE_SHIFT ||
+			if (inode->i_blkbits == PAGE_SHIFT ||
 					!mapping->a_ops->is_partially_uptodate)
 				goto page_not_up_to_date;
 			if (!trylock_page(page))
@@ -1672,18 +1672,18 @@ page_ok:
 		 */
 
 		isize = i_size_read(inode);
-		end_index = (isize - 1) >> PAGE_CACHE_SHIFT;
+		end_index = (isize - 1) >> PAGE_SHIFT;
 		if (unlikely(!isize || index > end_index)) {
-			page_cache_release(page);
+			put_page(page);
 			goto out;
 		}
 
 		/* nr is the maximum number of bytes to copy from this page */
-		nr = PAGE_CACHE_SIZE;
+		nr = PAGE_SIZE;
 		if (index == end_index) {
-			nr = ((isize - 1) & ~PAGE_CACHE_MASK) + 1;
+			nr = ((isize - 1) & ~PAGE_MASK) + 1;
 			if (nr <= offset) {
-				page_cache_release(page);
+				put_page(page);
 				goto out;
 			}
 		}
@@ -1711,11 +1711,11 @@ page_ok:
 
 		ret = copy_page_to_iter(page, offset, nr, iter);
 		offset += ret;
-		index += offset >> PAGE_CACHE_SHIFT;
-		offset &= ~PAGE_CACHE_MASK;
+		index += offset >> PAGE_SHIFT;
+		offset &= ~PAGE_MASK;
 		prev_offset = offset;
 
-		page_cache_release(page);
+		put_page(page);
 		written += ret;
 		if (!iov_iter_count(iter))
 			goto out;
@@ -1735,7 +1735,7 @@ page_not_up_to_date_locked:
 		/* Did it get truncated before we got the lock? */
 		if (!page->mapping) {
 			unlock_page(page);
-			page_cache_release(page);
+			put_page(page);
 			continue;
 		}
 
@@ -1757,7 +1757,7 @@ readpage:
 
 		if (unlikely(error)) {
 			if (error == AOP_TRUNCATED_PAGE) {
-				page_cache_release(page);
+				put_page(page);
 				error = 0;
 				goto find_page;
 			}
@@ -1774,7 +1774,7 @@ readpage:
 					 * invalidate_mapping_pages got it
 					 */
 					unlock_page(page);
-					page_cache_release(page);
+					put_page(page);
 					goto find_page;
 				}
 				unlock_page(page);
@@ -1789,7 +1789,7 @@ readpage:
 
 readpage_error:
 		/* UHHUH! A synchronous read error occurred. Report it */
-		page_cache_release(page);
+		put_page(page);
 		goto out;
 
 no_cached_page:
@@ -1805,7 +1805,7 @@ no_cached_page:
 		error = add_to_page_cache_lru(page, mapping, index,
 				mapping_gfp_constraint(mapping, GFP_KERNEL));
 		if (error) {
-			page_cache_release(page);
+			put_page(page);
 			if (error == -EEXIST) {
 				error = 0;
 				goto find_page;
@@ -1817,10 +1817,10 @@ no_cached_page:
 
 out:
 	ra->prev_pos = prev_index;
-	ra->prev_pos <<= PAGE_CACHE_SHIFT;
+	ra->prev_pos <<= PAGE_SHIFT;
 	ra->prev_pos |= prev_offset;
 
-	*ppos = ((loff_t)index << PAGE_CACHE_SHIFT) + offset;
+	*ppos = ((loff_t)index << PAGE_SHIFT) + offset;
 	file_accessed(filp);
 	return written ? written : error;
 }
@@ -1912,7 +1912,7 @@ static int page_cache_read(struct file *file, pgoff_t offset, gfp_t gfp_mask)
 		else if (ret == -EEXIST)
 			ret = 0; /* losing race to add is OK */
 
-		page_cache_release(page);
+		put_page(page);
 
 	} while (ret == AOP_TRUNCATED_PAGE);
 
@@ -2022,8 +2022,8 @@ int filemap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 	loff_t size;
 	int ret = 0;
 
-	size = round_up(i_size_read(inode), PAGE_CACHE_SIZE);
-	if (offset >= size >> PAGE_CACHE_SHIFT)
+	size = round_up(i_size_read(inode), PAGE_SIZE);
+	if (offset >= size >> PAGE_SHIFT)
 		return VM_FAULT_SIGBUS;
 
 	/*
@@ -2049,7 +2049,7 @@ retry_find:
 	}
 
 	if (!lock_page_or_retry(page, vma->vm_mm, vmf->flags)) {
-		page_cache_release(page);
+		put_page(page);
 		return ret | VM_FAULT_RETRY;
 	}
 
@@ -2072,10 +2072,10 @@ retry_find:
 	 * Found the page and have a reference on it.
 	 * We must recheck i_size under page lock.
 	 */
-	size = round_up(i_size_read(inode), PAGE_CACHE_SIZE);
-	if (unlikely(offset >= size >> PAGE_CACHE_SHIFT)) {
+	size = round_up(i_size_read(inode), PAGE_SIZE);
+	if (unlikely(offset >= size >> PAGE_SHIFT)) {
 		unlock_page(page);
-		page_cache_release(page);
+		put_page(page);
 		return VM_FAULT_SIGBUS;
 	}
 
@@ -2120,7 +2120,7 @@ page_not_uptodate:
 		if (!PageUptodate(page))
 			error = -EIO;
 	}
-	page_cache_release(page);
+	put_page(page);
 
 	if (!error || error == AOP_TRUNCATED_PAGE)
 		goto retry_find;
@@ -2164,7 +2164,7 @@ repeat:
 
 		/* Has the page moved? */
 		if (unlikely(page != *slot)) {
-			page_cache_release(page);
+			put_page(page);
 			goto repeat;
 		}
 
@@ -2178,8 +2178,8 @@ repeat:
 		if (page->mapping != mapping || !PageUptodate(page))
 			goto unlock;
 
-		size = round_up(i_size_read(mapping->host), PAGE_CACHE_SIZE);
-		if (page->index >= size >> PAGE_CACHE_SHIFT)
+		size = round_up(i_size_read(mapping->host), PAGE_SIZE);
+		if (page->index >= size >> PAGE_SHIFT)
 			goto unlock;
 
 		pte = vmf->pte + page->index - vmf->pgoff;
@@ -2195,7 +2195,7 @@ repeat:
 unlock:
 		unlock_page(page);
 skip:
-		page_cache_release(page);
+		put_page(page);
 next:
 		if (iter.index == vmf->max_pgoff)
 			break;
@@ -2278,7 +2278,7 @@ static struct page *wait_on_page_read(struct page *page)
 	if (!IS_ERR(page)) {
 		wait_on_page_locked(page);
 		if (!PageUptodate(page)) {
-			page_cache_release(page);
+			put_page(page);
 			page = ERR_PTR(-EIO);
 		}
 	}
@@ -2301,7 +2301,7 @@ repeat:
 			return ERR_PTR(-ENOMEM);
 		err = add_to_page_cache_lru(page, mapping, index, gfp);
 		if (unlikely(err)) {
-			page_cache_release(page);
+			put_page(page);
 			if (err == -EEXIST)
 				goto repeat;
 			/* Presumably ENOMEM for radix tree node */
@@ -2311,7 +2311,7 @@ repeat:
 filler:
 		err = filler(data, page);
 		if (err < 0) {
-			page_cache_release(page);
+			put_page(page);
 			return ERR_PTR(err);
 		}
 
@@ -2364,7 +2364,7 @@ filler:
 	/* Case c or d, restart the operation */
 	if (!page->mapping) {
 		unlock_page(page);
-		page_cache_release(page);
+		put_page(page);
 		goto repeat;
 	}
 
@@ -2511,7 +2511,7 @@ generic_file_direct_write(struct kiocb *iocb, struct iov_iter *from, loff_t pos)
 	struct iov_iter data;
 
 	write_len = iov_iter_count(from);
-	end = (pos + write_len - 1) >> PAGE_CACHE_SHIFT;
+	end = (pos + write_len - 1) >> PAGE_SHIFT;
 
 	written = filemap_write_and_wait_range(mapping, pos, pos + write_len - 1);
 	if (written)
@@ -2525,7 +2525,7 @@ generic_file_direct_write(struct kiocb *iocb, struct iov_iter *from, loff_t pos)
 	 */
 	if (mapping->nrpages) {
 		written = invalidate_inode_pages2_range(mapping,
-					pos >> PAGE_CACHE_SHIFT, end);
+					pos >> PAGE_SHIFT, end);
 		/*
 		 * If a page can not be invalidated, return 0 to fall back
 		 * to buffered write.
@@ -2550,7 +2550,7 @@ generic_file_direct_write(struct kiocb *iocb, struct iov_iter *from, loff_t pos)
 	 */
 	if (mapping->nrpages) {
 		invalidate_inode_pages2_range(mapping,
-					      pos >> PAGE_CACHE_SHIFT, end);
+					      pos >> PAGE_SHIFT, end);
 	}
 
 	if (written > 0) {
@@ -2611,8 +2611,8 @@ ssize_t generic_perform_write(struct file *file,
 		size_t copied;		/* Bytes copied from user */
 		void *fsdata;
 
-		offset = (pos & (PAGE_CACHE_SIZE - 1));
-		bytes = min_t(unsigned long, PAGE_CACHE_SIZE - offset,
+		offset = (pos & (PAGE_SIZE - 1));
+		bytes = min_t(unsigned long, PAGE_SIZE - offset,
 						iov_iter_count(i));
 
 again:
@@ -2665,7 +2665,7 @@ again:
 			 * because not all segments in the iov can be copied at
 			 * once without a pagefault.
 			 */
-			bytes = min_t(unsigned long, PAGE_CACHE_SIZE - offset,
+			bytes = min_t(unsigned long, PAGE_SIZE - offset,
 						iov_iter_single_seg_count(i));
 			goto again;
 		}
@@ -2752,8 +2752,8 @@ ssize_t __generic_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 			iocb->ki_pos = endbyte + 1;
 			written += status;
 			invalidate_mapping_pages(mapping,
-						 pos >> PAGE_CACHE_SHIFT,
-						 endbyte >> PAGE_CACHE_SHIFT);
+						 pos >> PAGE_SHIFT,
+						 endbyte >> PAGE_SHIFT);
 		} else {
 			/*
 			 * We don't know how much we wrote, so just return
diff --git a/mm/gup.c b/mm/gup.c
index 7f1c4fb77cfa..fb87aea9edc8 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -1107,7 +1107,7 @@ int __mm_populate(unsigned long start, unsigned long len, int ignore_errors)
  * @addr: user address
  *
  * Returns struct page pointer of user page pinned for dump,
- * to be freed afterwards by page_cache_release() or put_page().
+ * to be freed afterwards by put_page().
  *
  * Returns NULL on any kind of failure - a hole must then be inserted into
  * the corefile, to preserve alignment with its headers; and also returns
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 06058eaa173b..19d0d08b396f 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -3346,7 +3346,7 @@ retry_avoidcopy:
 			old_page != pagecache_page)
 		outside_reserve = 1;
 
-	page_cache_get(old_page);
+	get_page(old_page);
 
 	/*
 	 * Drop page table lock as buddy allocator may be called. It will
@@ -3364,7 +3364,7 @@ retry_avoidcopy:
 		 * may get SIGKILLed if it later faults.
 		 */
 		if (outside_reserve) {
-			page_cache_release(old_page);
+			put_page(old_page);
 			BUG_ON(huge_pte_none(pte));
 			unmap_ref_private(mm, vma, old_page, address);
 			BUG_ON(huge_pte_none(pte));
@@ -3425,9 +3425,9 @@ retry_avoidcopy:
 	spin_unlock(ptl);
 	mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end);
 out_release_all:
-	page_cache_release(new_page);
+	put_page(new_page);
 out_release_old:
-	page_cache_release(old_page);
+	put_page(old_page);
 
 	spin_lock(ptl); /* Caller expects lock to be held */
 	return ret;
diff --git a/mm/kasan/kasan.c b/mm/kasan/kasan.c
index acb3b6c4dd89..38f1dd79acdb 100644
--- a/mm/kasan/kasan.c
+++ b/mm/kasan/kasan.c
@@ -498,7 +498,7 @@ void kasan_slab_free(struct kmem_cache *cache, void *object)
 		struct kasan_alloc_meta *alloc_info =
 			get_alloc_info(cache, object);
 		alloc_info->state = KASAN_STATE_FREE;
-		set_track(&free_info->track);
+		set_track(&free_info->track, GFP_NOWAIT);
 	}
 #endif
 
diff --git a/mm/madvise.c b/mm/madvise.c
index a01147359f3b..07427d3fcead 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -170,7 +170,7 @@ static int swapin_walk_pmd_entry(pmd_t *pmd, unsigned long start,
 		page = read_swap_cache_async(entry, GFP_HIGHUSER_MOVABLE,
 								vma, index);
 		if (page)
-			page_cache_release(page);
+			put_page(page);
 	}
 
 	return 0;
@@ -204,14 +204,14 @@ static void force_shm_swapin_readahead(struct vm_area_struct *vma,
 		page = find_get_entry(mapping, index);
 		if (!radix_tree_exceptional_entry(page)) {
 			if (page)
-				page_cache_release(page);
+				put_page(page);
 			continue;
 		}
 		swap = radix_to_swp_entry(page);
 		page = read_swap_cache_async(swap, GFP_HIGHUSER_MOVABLE,
 								NULL, 0);
 		if (page)
-			page_cache_release(page);
+			put_page(page);
 	}
 
 	lru_add_drain();	/* Push any new pages onto the LRU now */
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 5a544c6c0717..78f5f2641b91 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -538,7 +538,7 @@ static int delete_from_lru_cache(struct page *p)
 		/*
 		 * drop the page count elevated by isolate_lru_page()
 		 */
-		page_cache_release(p);
+		put_page(p);
 		return 0;
 	}
 	return -EIO;
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;
diff --git a/mm/mincore.c b/mm/mincore.c
index 563f32045490..c0b5ba965200 100644
--- a/mm/mincore.c
+++ b/mm/mincore.c
@@ -75,7 +75,7 @@ static unsigned char mincore_page(struct address_space *mapping, pgoff_t pgoff)
 #endif
 	if (page) {
 		present = PageUptodate(page);
-		page_cache_release(page);
+		put_page(page);
 	}
 
 	return present;
@@ -211,7 +211,7 @@ static long do_mincore(unsigned long addr, unsigned long pages, unsigned char *v
  * return values:
  *  zero    - success
  *  -EFAULT - vec points to an illegal address
- *  -EINVAL - addr is not a multiple of PAGE_CACHE_SIZE
+ *  -EINVAL - addr is not a multiple of PAGE_SIZE
  *  -ENOMEM - Addresses in the range [addr, addr + len] are
  *		invalid for the address space of this process, or
  *		specify one or more pages which are not currently
@@ -226,14 +226,14 @@ SYSCALL_DEFINE3(mincore, unsigned long, start, size_t, len,
 	unsigned char *tmp;
 
 	/* Check the start address: needs to be page-aligned.. */
- 	if (start & ~PAGE_CACHE_MASK)
+	if (start & ~PAGE_MASK)
 		return -EINVAL;
 
 	/* ..and we need to be passed a valid user-space range */
 	if (!access_ok(VERIFY_READ, (void __user *) start, len))
 		return -ENOMEM;
 
-	/* This also avoids any overflows on PAGE_CACHE_ALIGN */
+	/* This also avoids any overflows on PAGE_ALIGN */
 	pages = len >> PAGE_SHIFT;
 	pages += (offset_in_page(len)) != 0;
 
diff --git a/mm/nommu.c b/mm/nommu.c
index de8b6b6580c1..102e257cc6c3 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -141,7 +141,7 @@ long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
 		if (pages) {
 			pages[i] = virt_to_page(start);
 			if (pages[i])
-				page_cache_get(pages[i]);
+				get_page(pages[i]);
 		}
 		if (vmas)
 			vmas[i] = vma;
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index b34d279a7ee6..86349586eacb 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -547,7 +547,11 @@ static int oom_reaper(void *unused)
 
 static void wake_oom_reaper(struct task_struct *tsk)
 {
-	if (!oom_reaper_th || tsk->oom_reaper_list)
+	if (!oom_reaper_th)
+		return;
+
+	/* tsk is already queued? */
+	if (tsk == oom_reaper_list || tsk->oom_reaper_list)
 		return;
 
 	get_task_struct(tsk);
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 11ff8f758631..999792d35ccc 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -2176,8 +2176,8 @@ int write_cache_pages(struct address_space *mapping,
 			cycled = 0;
 		end = -1;
 	} else {
-		index = wbc->range_start >> PAGE_CACHE_SHIFT;
-		end = wbc->range_end >> PAGE_CACHE_SHIFT;
+		index = wbc->range_start >> PAGE_SHIFT;
+		end = wbc->range_end >> PAGE_SHIFT;
 		if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX)
 			range_whole = 1;
 		cycled = 1; /* ignore range_cyclic tests */
@@ -2382,14 +2382,14 @@ int write_one_page(struct page *page, int wait)
 		wait_on_page_writeback(page);
 
 	if (clear_page_dirty_for_io(page)) {
-		page_cache_get(page);
+		get_page(page);
 		ret = mapping->a_ops->writepage(page, &wbc);
 		if (ret == 0 && wait) {
 			wait_on_page_writeback(page);
 			if (PageError(page))
 				ret = -EIO;
 		}
-		page_cache_release(page);
+		put_page(page);
 	} else {
 		unlock_page(page);
 	}
@@ -2431,7 +2431,7 @@ void account_page_dirtied(struct page *page, struct address_space *mapping)
 		__inc_zone_page_state(page, NR_DIRTIED);
 		__inc_wb_stat(wb, WB_RECLAIMABLE);
 		__inc_wb_stat(wb, WB_DIRTIED);
-		task_io_account_write(PAGE_CACHE_SIZE);
+		task_io_account_write(PAGE_SIZE);
 		current->nr_dirtied++;
 		this_cpu_inc(bdp_ratelimits);
 	}
@@ -2450,7 +2450,7 @@ void account_page_cleaned(struct page *page, struct address_space *mapping,
 		mem_cgroup_dec_page_stat(page, MEM_CGROUP_STAT_DIRTY);
 		dec_zone_page_state(page, NR_FILE_DIRTY);
 		dec_wb_stat(wb, WB_RECLAIMABLE);
-		task_io_account_cancelled_write(PAGE_CACHE_SIZE);
+		task_io_account_cancelled_write(PAGE_SIZE);
 	}
 }
 
diff --git a/mm/page_io.c b/mm/page_io.c
index 18aac7819cc9..cd92e3d67a32 100644
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -252,7 +252,7 @@ out:
 
 static sector_t swap_page_sector(struct page *page)
 {
-	return (sector_t)__page_file_index(page) << (PAGE_CACHE_SHIFT - 9);
+	return (sector_t)__page_file_index(page) << (PAGE_SHIFT - 9);
 }
 
 int __swap_writepage(struct page *page, struct writeback_control *wbc,
diff --git a/mm/page_isolation.c b/mm/page_isolation.c
index 92c4c36501e7..c4f568206544 100644
--- a/mm/page_isolation.c
+++ b/mm/page_isolation.c
@@ -215,7 +215,7 @@ int undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn,
  * all pages in [start_pfn...end_pfn) must be in the same zone.
  * zone->lock must be held before call this.
  *
- * Returns 1 if all pages in the range are isolated.
+ * Returns the last tested pfn.
  */
 static unsigned long
 __test_page_isolated_in_pageblock(unsigned long pfn, unsigned long end_pfn,
@@ -289,11 +289,11 @@ struct page *alloc_migrate_target(struct page *page, unsigned long private,
 	 * now as a simple work-around, we use the next node for destination.
 	 */
 	if (PageHuge(page)) {
-		nodemask_t src = nodemask_of_node(page_to_nid(page));
-		nodemask_t dst;
-		nodes_complement(dst, src);
+		int node = next_online_node(page_to_nid(page));
+		if (node == MAX_NUMNODES)
+			node = first_online_node;
 		return alloc_huge_page_node(page_hstate(compound_head(page)),
-					    next_node(page_to_nid(page), dst));
+					    node);
 	}
 
 	if (PageHighMem(page))
diff --git a/mm/readahead.c b/mm/readahead.c
index 20e58e820e44..40be3ae0afe3 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -47,11 +47,11 @@ static void read_cache_pages_invalidate_page(struct address_space *mapping,
 		if (!trylock_page(page))
 			BUG();
 		page->mapping = mapping;
-		do_invalidatepage(page, 0, PAGE_CACHE_SIZE);
+		do_invalidatepage(page, 0, PAGE_SIZE);
 		page->mapping = NULL;
 		unlock_page(page);
 	}
-	page_cache_release(page);
+	put_page(page);
 }
 
 /*
@@ -93,14 +93,14 @@ int read_cache_pages(struct address_space *mapping, struct list_head *pages,
 			read_cache_pages_invalidate_page(mapping, page);
 			continue;
 		}
-		page_cache_release(page);
+		put_page(page);
 
 		ret = filler(data, page);
 		if (unlikely(ret)) {
 			read_cache_pages_invalidate_pages(mapping, pages);
 			break;
 		}
-		task_io_account_read(PAGE_CACHE_SIZE);
+		task_io_account_read(PAGE_SIZE);
 	}
 	return ret;
 }
@@ -130,7 +130,7 @@ static int read_pages(struct address_space *mapping, struct file *filp,
 				mapping_gfp_constraint(mapping, GFP_KERNEL))) {
 			mapping->a_ops->readpage(filp, page);
 		}
-		page_cache_release(page);
+		put_page(page);
 	}
 	ret = 0;
 
@@ -163,7 +163,7 @@ int __do_page_cache_readahead(struct address_space *mapping, struct file *filp,
 	if (isize == 0)
 		goto out;
 
-	end_index = ((isize - 1) >> PAGE_CACHE_SHIFT);
+	end_index = ((isize - 1) >> PAGE_SHIFT);
 
 	/*
 	 * Preallocate as many pages as we will need.
@@ -216,7 +216,7 @@ int force_page_cache_readahead(struct address_space *mapping, struct file *filp,
 	while (nr_to_read) {
 		int err;
 
-		unsigned long this_chunk = (2 * 1024 * 1024) / PAGE_CACHE_SIZE;
+		unsigned long this_chunk = (2 * 1024 * 1024) / PAGE_SIZE;
 
 		if (this_chunk > nr_to_read)
 			this_chunk = nr_to_read;
@@ -425,7 +425,7 @@ ondemand_readahead(struct address_space *mapping,
 	 * trivial case: (offset - prev_offset) == 1
 	 * unaligned reads: (offset - prev_offset) == 0
 	 */
-	prev_offset = (unsigned long long)ra->prev_pos >> PAGE_CACHE_SHIFT;
+	prev_offset = (unsigned long long)ra->prev_pos >> PAGE_SHIFT;
 	if (offset - prev_offset <= 1UL)
 		goto initial_readahead;
 
@@ -558,8 +558,8 @@ SYSCALL_DEFINE3(readahead, int, fd, loff_t, offset, size_t, count)
 	if (f.file) {
 		if (f.file->f_mode & FMODE_READ) {
 			struct address_space *mapping = f.file->f_mapping;
-			pgoff_t start = offset >> PAGE_CACHE_SHIFT;
-			pgoff_t end = (offset + count - 1) >> PAGE_CACHE_SHIFT;
+			pgoff_t start = offset >> PAGE_SHIFT;
+			pgoff_t end = (offset + count - 1) >> PAGE_SHIFT;
 			unsigned long len = end - start + 1;
 			ret = do_readahead(mapping, f.file, start, len);
 		}
diff --git a/mm/rmap.c b/mm/rmap.c
index c399a0d41b31..307b555024ef 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -569,19 +569,6 @@ void page_unlock_anon_vma_read(struct anon_vma *anon_vma)
 }
 
 #ifdef CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH
-static void percpu_flush_tlb_batch_pages(void *data)
-{
-	/*
-	 * All TLB entries are flushed on the assumption that it is
-	 * cheaper to flush all TLBs and let them be refilled than
-	 * flushing individual PFNs. Note that we do not track mm's
-	 * to flush as that might simply be multiple full TLB flushes
-	 * for no gain.
-	 */
-	count_vm_tlb_event(NR_TLB_REMOTE_FLUSH_RECEIVED);
-	flush_tlb_local();
-}
-
 /*
  * Flush TLB entries for recently unmapped pages from remote CPUs. It is
  * important if a PTE was dirty when it was unmapped that it's flushed
@@ -598,15 +585,14 @@ void try_to_unmap_flush(void)
 
 	cpu = get_cpu();
 
-	trace_tlb_flush(TLB_REMOTE_SHOOTDOWN, -1UL);
-
-	if (cpumask_test_cpu(cpu, &tlb_ubc->cpumask))
-		percpu_flush_tlb_batch_pages(&tlb_ubc->cpumask);
-
-	if (cpumask_any_but(&tlb_ubc->cpumask, cpu) < nr_cpu_ids) {
-		smp_call_function_many(&tlb_ubc->cpumask,
-			percpu_flush_tlb_batch_pages, (void *)tlb_ubc, true);
+	if (cpumask_test_cpu(cpu, &tlb_ubc->cpumask)) {
+		count_vm_tlb_event(NR_TLB_LOCAL_FLUSH_ALL);
+		local_flush_tlb();
+		trace_tlb_flush(TLB_LOCAL_SHOOTDOWN, TLB_FLUSH_ALL);
 	}
+
+	if (cpumask_any_but(&tlb_ubc->cpumask, cpu) < nr_cpu_ids)
+		flush_tlb_others(&tlb_ubc->cpumask, NULL, 0, TLB_FLUSH_ALL);
 	cpumask_clear(&tlb_ubc->cpumask);
 	tlb_ubc->flush_required = false;
 	tlb_ubc->writable = false;
@@ -1555,7 +1541,7 @@ static int try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
 
 discard:
 	page_remove_rmap(page, PageHuge(page));
-	page_cache_release(page);
+	put_page(page);
 
 out_unmap:
 	pte_unmap_unlock(pte, ptl);
diff --git a/mm/shmem.c b/mm/shmem.c
index 9428c51ab2d6..719bd6b88d98 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -75,8 +75,8 @@ static struct vfsmount *shm_mnt;
 
 #include "internal.h"
 
-#define BLOCKS_PER_PAGE  (PAGE_CACHE_SIZE/512)
-#define VM_ACCT(size)    (PAGE_CACHE_ALIGN(size) >> PAGE_SHIFT)
+#define BLOCKS_PER_PAGE  (PAGE_SIZE/512)
+#define VM_ACCT(size)    (PAGE_ALIGN(size) >> PAGE_SHIFT)
 
 /* Pretend that each entry is of this size in directory's i_size */
 #define BOGO_DIRENT_SIZE 20
@@ -176,13 +176,13 @@ static inline int shmem_reacct_size(unsigned long flags,
 static inline int shmem_acct_block(unsigned long flags)
 {
 	return (flags & VM_NORESERVE) ?
-		security_vm_enough_memory_mm(current->mm, VM_ACCT(PAGE_CACHE_SIZE)) : 0;
+		security_vm_enough_memory_mm(current->mm, VM_ACCT(PAGE_SIZE)) : 0;
 }
 
 static inline void shmem_unacct_blocks(unsigned long flags, long pages)
 {
 	if (flags & VM_NORESERVE)
-		vm_unacct_memory(pages * VM_ACCT(PAGE_CACHE_SIZE));
+		vm_unacct_memory(pages * VM_ACCT(PAGE_SIZE));
 }
 
 static const struct super_operations shmem_ops;
@@ -300,7 +300,7 @@ static int shmem_add_to_page_cache(struct page *page,
 	VM_BUG_ON_PAGE(!PageLocked(page), page);
 	VM_BUG_ON_PAGE(!PageSwapBacked(page), page);
 
-	page_cache_get(page);
+	get_page(page);
 	page->mapping = mapping;
 	page->index = index;
 
@@ -318,7 +318,7 @@ static int shmem_add_to_page_cache(struct page *page,
 	} else {
 		page->mapping = NULL;
 		spin_unlock_irq(&mapping->tree_lock);
-		page_cache_release(page);
+		put_page(page);
 	}
 	return error;
 }
@@ -338,7 +338,7 @@ static void shmem_delete_from_page_cache(struct page *page, void *radswap)
 	__dec_zone_page_state(page, NR_FILE_PAGES);
 	__dec_zone_page_state(page, NR_SHMEM);
 	spin_unlock_irq(&mapping->tree_lock);
-	page_cache_release(page);
+	put_page(page);
 	BUG_ON(error);
 }
 
@@ -474,10 +474,10 @@ static void shmem_undo_range(struct inode *inode, loff_t lstart, loff_t lend,
 {
 	struct address_space *mapping = inode->i_mapping;
 	struct shmem_inode_info *info = SHMEM_I(inode);
-	pgoff_t start = (lstart + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
-	pgoff_t end = (lend + 1) >> PAGE_CACHE_SHIFT;
-	unsigned int partial_start = lstart & (PAGE_CACHE_SIZE - 1);
-	unsigned int partial_end = (lend + 1) & (PAGE_CACHE_SIZE - 1);
+	pgoff_t start = (lstart + PAGE_SIZE - 1) >> PAGE_SHIFT;
+	pgoff_t end = (lend + 1) >> PAGE_SHIFT;
+	unsigned int partial_start = lstart & (PAGE_SIZE - 1);
+	unsigned int partial_end = (lend + 1) & (PAGE_SIZE - 1);
 	struct pagevec pvec;
 	pgoff_t indices[PAGEVEC_SIZE];
 	long nr_swaps_freed = 0;
@@ -530,7 +530,7 @@ static void shmem_undo_range(struct inode *inode, loff_t lstart, loff_t lend,
 		struct page *page = NULL;
 		shmem_getpage(inode, start - 1, &page, SGP_READ, NULL);
 		if (page) {
-			unsigned int top = PAGE_CACHE_SIZE;
+			unsigned int top = PAGE_SIZE;
 			if (start > end) {
 				top = partial_end;
 				partial_end = 0;
@@ -538,7 +538,7 @@ static void shmem_undo_range(struct inode *inode, loff_t lstart, loff_t lend,
 			zero_user_segment(page, partial_start, top);
 			set_page_dirty(page);
 			unlock_page(page);
-			page_cache_release(page);
+			put_page(page);
 		}
 	}
 	if (partial_end) {
@@ -548,7 +548,7 @@ static void shmem_undo_range(struct inode *inode, loff_t lstart, loff_t lend,
 			zero_user_segment(page, 0, partial_end);
 			set_page_dirty(page);
 			unlock_page(page);
-			page_cache_release(page);
+			put_page(page);
 		}
 	}
 	if (start >= end)
@@ -833,7 +833,7 @@ int shmem_unuse(swp_entry_t swap, struct page *page)
 		mem_cgroup_commit_charge(page, memcg, true, false);
 out:
 	unlock_page(page);
-	page_cache_release(page);
+	put_page(page);
 	return error;
 }
 
@@ -1080,7 +1080,7 @@ static int shmem_replace_page(struct page **pagep, gfp_t gfp,
 	if (!newpage)
 		return -ENOMEM;
 
-	page_cache_get(newpage);
+	get_page(newpage);
 	copy_highpage(newpage, oldpage);
 	flush_dcache_page(newpage);
 
@@ -1120,8 +1120,8 @@ static int shmem_replace_page(struct page **pagep, gfp_t gfp,
 	set_page_private(oldpage, 0);
 
 	unlock_page(oldpage);
-	page_cache_release(oldpage);
-	page_cache_release(oldpage);
+	put_page(oldpage);
+	put_page(oldpage);
 	return error;
 }
 
@@ -1145,7 +1145,7 @@ static int shmem_getpage_gfp(struct inode *inode, pgoff_t index,
 	int once = 0;
 	int alloced = 0;
 
-	if (index > (MAX_LFS_FILESIZE >> PAGE_CACHE_SHIFT))
+	if (index > (MAX_LFS_FILESIZE >> PAGE_SHIFT))
 		return -EFBIG;
 repeat:
 	swap.val = 0;
@@ -1156,7 +1156,7 @@ repeat:
 	}
 
 	if (sgp != SGP_WRITE && sgp != SGP_FALLOC &&
-	    ((loff_t)index << PAGE_CACHE_SHIFT) >= i_size_read(inode)) {
+	    ((loff_t)index << PAGE_SHIFT) >= i_size_read(inode)) {
 		error = -EINVAL;
 		goto unlock;
 	}
@@ -1169,7 +1169,7 @@ repeat:
 		if (sgp != SGP_READ)
 			goto clear;
 		unlock_page(page);
-		page_cache_release(page);
+		put_page(page);
 		page = NULL;
 	}
 	if (page || (sgp == SGP_READ && !swap.val)) {
@@ -1327,7 +1327,7 @@ clear:
 
 	/* Perhaps the file has been truncated since we checked */
 	if (sgp != SGP_WRITE && sgp != SGP_FALLOC &&
-	    ((loff_t)index << PAGE_CACHE_SHIFT) >= i_size_read(inode)) {
+	    ((loff_t)index << PAGE_SHIFT) >= i_size_read(inode)) {
 		if (alloced) {
 			ClearPageDirty(page);
 			delete_from_page_cache(page);
@@ -1355,7 +1355,7 @@ failed:
 unlock:
 	if (page) {
 		unlock_page(page);
-		page_cache_release(page);
+		put_page(page);
 	}
 	if (error == -ENOSPC && !once++) {
 		info = SHMEM_I(inode);
@@ -1577,7 +1577,7 @@ shmem_write_begin(struct file *file, struct address_space *mapping,
 {
 	struct inode *inode = mapping->host;
 	struct shmem_inode_info *info = SHMEM_I(inode);
-	pgoff_t index = pos >> PAGE_CACHE_SHIFT;
+	pgoff_t index = pos >> PAGE_SHIFT;
 
 	/* i_mutex is held by caller */
 	if (unlikely(info->seals)) {
@@ -1601,16 +1601,16 @@ shmem_write_end(struct file *file, struct address_space *mapping,
 		i_size_write(inode, pos + copied);
 
 	if (!PageUptodate(page)) {
-		if (copied < PAGE_CACHE_SIZE) {
-			unsigned from = pos & (PAGE_CACHE_SIZE - 1);
+		if (copied < PAGE_SIZE) {
+			unsigned from = pos & (PAGE_SIZE - 1);
 			zero_user_segments(page, 0, from,
-					from + copied, PAGE_CACHE_SIZE);
+					from + copied, PAGE_SIZE);
 		}
 		SetPageUptodate(page);
 	}
 	set_page_dirty(page);
 	unlock_page(page);
-	page_cache_release(page);
+	put_page(page);
 
 	return copied;
 }
@@ -1635,8 +1635,8 @@ static ssize_t shmem_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
 	if (!iter_is_iovec(to))
 		sgp = SGP_DIRTY;
 
-	index = *ppos >> PAGE_CACHE_SHIFT;
-	offset = *ppos & ~PAGE_CACHE_MASK;
+	index = *ppos >> PAGE_SHIFT;
+	offset = *ppos & ~PAGE_MASK;
 
 	for (;;) {
 		struct page *page = NULL;
@@ -1644,11 +1644,11 @@ static ssize_t shmem_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
 		unsigned long nr, ret;
 		loff_t i_size = i_size_read(inode);
 
-		end_index = i_size >> PAGE_CACHE_SHIFT;
+		end_index = i_size >> PAGE_SHIFT;
 		if (index > end_index)
 			break;
 		if (index == end_index) {
-			nr = i_size & ~PAGE_CACHE_MASK;
+			nr = i_size & ~PAGE_MASK;
 			if (nr <= offset)
 				break;
 		}
@@ -1666,14 +1666,14 @@ static ssize_t shmem_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
 		 * We must evaluate after, since reads (unlike writes)
 		 * are called without i_mutex protection against truncate
 		 */
-		nr = PAGE_CACHE_SIZE;
+		nr = PAGE_SIZE;
 		i_size = i_size_read(inode);
-		end_index = i_size >> PAGE_CACHE_SHIFT;
+		end_index = i_size >> PAGE_SHIFT;
 		if (index == end_index) {
-			nr = i_size & ~PAGE_CACHE_MASK;
+			nr = i_size & ~PAGE_MASK;
 			if (nr <= offset) {
 				if (page)
-					page_cache_release(page);
+					put_page(page);
 				break;
 			}
 		}
@@ -1694,7 +1694,7 @@ static ssize_t shmem_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
 				mark_page_accessed(page);
 		} else {
 			page = ZERO_PAGE(0);
-			page_cache_get(page);
+			get_page(page);
 		}
 
 		/*
@@ -1704,10 +1704,10 @@ static ssize_t shmem_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
 		ret = copy_page_to_iter(page, offset, nr, to);
 		retval += ret;
 		offset += ret;
-		index += offset >> PAGE_CACHE_SHIFT;
-		offset &= ~PAGE_CACHE_MASK;
+		index += offset >> PAGE_SHIFT;
+		offset &= ~PAGE_MASK;
 
-		page_cache_release(page);
+		put_page(page);
 		if (!iov_iter_count(to))
 			break;
 		if (ret < nr) {
@@ -1717,7 +1717,7 @@ static ssize_t shmem_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
 		cond_resched();
 	}
 
-	*ppos = ((loff_t) index << PAGE_CACHE_SHIFT) + offset;
+	*ppos = ((loff_t) index << PAGE_SHIFT) + offset;
 	file_accessed(file);
 	return retval ? retval : error;
 }
@@ -1755,9 +1755,9 @@ static ssize_t shmem_file_splice_read(struct file *in, loff_t *ppos,
 	if (splice_grow_spd(pipe, &spd))
 		return -ENOMEM;
 
-	index = *ppos >> PAGE_CACHE_SHIFT;
-	loff = *ppos & ~PAGE_CACHE_MASK;
-	req_pages = (len + loff + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+	index = *ppos >> PAGE_SHIFT;
+	loff = *ppos & ~PAGE_MASK;
+	req_pages = (len + loff + PAGE_SIZE - 1) >> PAGE_SHIFT;
 	nr_pages = min(req_pages, spd.nr_pages_max);
 
 	spd.nr_pages = find_get_pages_contig(mapping, index,
@@ -1774,7 +1774,7 @@ static ssize_t shmem_file_splice_read(struct file *in, loff_t *ppos,
 		index++;
 	}
 
-	index = *ppos >> PAGE_CACHE_SHIFT;
+	index = *ppos >> PAGE_SHIFT;
 	nr_pages = spd.nr_pages;
 	spd.nr_pages = 0;
 
@@ -1784,7 +1784,7 @@ static ssize_t shmem_file_splice_read(struct file *in, loff_t *ppos,
 		if (!len)
 			break;
 
-		this_len = min_t(unsigned long, len, PAGE_CACHE_SIZE - loff);
+		this_len = min_t(unsigned long, len, PAGE_SIZE - loff);
 		page = spd.pages[page_nr];
 
 		if (!PageUptodate(page) || page->mapping != mapping) {
@@ -1793,19 +1793,19 @@ static ssize_t shmem_file_splice_read(struct file *in, loff_t *ppos,
 			if (error)
 				break;
 			unlock_page(page);
-			page_cache_release(spd.pages[page_nr]);
+			put_page(spd.pages[page_nr]);
 			spd.pages[page_nr] = page;
 		}
 
 		isize = i_size_read(inode);
-		end_index = (isize - 1) >> PAGE_CACHE_SHIFT;
+		end_index = (isize - 1) >> PAGE_SHIFT;
 		if (unlikely(!isize || index > end_index))
 			break;
 
 		if (end_index == index) {
 			unsigned int plen;
 
-			plen = ((isize - 1) & ~PAGE_CACHE_MASK) + 1;
+			plen = ((isize - 1) & ~PAGE_MASK) + 1;
 			if (plen <= loff)
 				break;
 
@@ -1822,7 +1822,7 @@ static ssize_t shmem_file_splice_read(struct file *in, loff_t *ppos,
 	}
 
 	while (page_nr < nr_pages)
-		page_cache_release(spd.pages[page_nr++]);
+		put_page(spd.pages[page_nr++]);
 
 	if (spd.nr_pages)
 		error = splice_to_pipe(pipe, &spd);
@@ -1904,10 +1904,10 @@ static loff_t shmem_file_llseek(struct file *file, loff_t offset, int whence)
 	else if (offset >= inode->i_size)
 		offset = -ENXIO;
 	else {
-		start = offset >> PAGE_CACHE_SHIFT;
-		end = (inode->i_size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+		start = offset >> PAGE_SHIFT;
+		end = (inode->i_size + PAGE_SIZE - 1) >> PAGE_SHIFT;
 		new_offset = shmem_seek_hole_data(mapping, start, end, whence);
-		new_offset <<= PAGE_CACHE_SHIFT;
+		new_offset <<= PAGE_SHIFT;
 		if (new_offset > offset) {
 			if (new_offset < inode->i_size)
 				offset = new_offset;
@@ -2203,8 +2203,8 @@ static long shmem_fallocate(struct file *file, int mode, loff_t offset,
 		goto out;
 	}
 
-	start = offset >> PAGE_CACHE_SHIFT;
-	end = (offset + len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+	start = offset >> PAGE_SHIFT;
+	end = (offset + len + PAGE_SIZE - 1) >> PAGE_SHIFT;
 	/* Try to avoid a swapstorm if len is impossible to satisfy */
 	if (sbinfo->max_blocks && end - start > sbinfo->max_blocks) {
 		error = -ENOSPC;
@@ -2237,8 +2237,8 @@ static long shmem_fallocate(struct file *file, int mode, loff_t offset,
 		if (error) {
 			/* Remove the !PageUptodate pages we added */
 			shmem_undo_range(inode,
-				(loff_t)start << PAGE_CACHE_SHIFT,
-				(loff_t)index << PAGE_CACHE_SHIFT, true);
+				(loff_t)start << PAGE_SHIFT,
+				(loff_t)index << PAGE_SHIFT, true);
 			goto undone;
 		}
 
@@ -2259,7 +2259,7 @@ static long shmem_fallocate(struct file *file, int mode, loff_t offset,
 		 */
 		set_page_dirty(page);
 		unlock_page(page);
-		page_cache_release(page);
+		put_page(page);
 		cond_resched();
 	}
 
@@ -2280,7 +2280,7 @@ static int shmem_statfs(struct dentry *dentry, struct kstatfs *buf)
 	struct shmem_sb_info *sbinfo = SHMEM_SB(dentry->d_sb);
 
 	buf->f_type = TMPFS_MAGIC;
-	buf->f_bsize = PAGE_CACHE_SIZE;
+	buf->f_bsize = PAGE_SIZE;
 	buf->f_namelen = NAME_MAX;
 	if (sbinfo->max_blocks) {
 		buf->f_blocks = sbinfo->max_blocks;
@@ -2523,7 +2523,7 @@ static int shmem_symlink(struct inode *dir, struct dentry *dentry, const char *s
 	struct shmem_inode_info *info;
 
 	len = strlen(symname) + 1;
-	if (len > PAGE_CACHE_SIZE)
+	if (len > PAGE_SIZE)
 		return -ENAMETOOLONG;
 
 	inode = shmem_get_inode(dir->i_sb, dir, S_IFLNK|S_IRWXUGO, 0, VM_NORESERVE);
@@ -2562,7 +2562,7 @@ static int shmem_symlink(struct inode *dir, struct dentry *dentry, const char *s
 		SetPageUptodate(page);
 		set_page_dirty(page);
 		unlock_page(page);
-		page_cache_release(page);
+		put_page(page);
 	}
 	dir->i_size += BOGO_DIRENT_SIZE;
 	dir->i_ctime = dir->i_mtime = CURRENT_TIME;
@@ -2835,7 +2835,7 @@ static int shmem_parse_options(char *options, struct shmem_sb_info *sbinfo,
 			if (*rest)
 				goto bad_val;
 			sbinfo->max_blocks =
-				DIV_ROUND_UP(size, PAGE_CACHE_SIZE);
+				DIV_ROUND_UP(size, PAGE_SIZE);
 		} else if (!strcmp(this_char,"nr_blocks")) {
 			sbinfo->max_blocks = memparse(value, &rest);
 			if (*rest)
@@ -2940,7 +2940,7 @@ static int shmem_show_options(struct seq_file *seq, struct dentry *root)
 
 	if (sbinfo->max_blocks != shmem_default_max_blocks())
 		seq_printf(seq, ",size=%luk",
-			sbinfo->max_blocks << (PAGE_CACHE_SHIFT - 10));
+			sbinfo->max_blocks << (PAGE_SHIFT - 10));
 	if (sbinfo->max_inodes != shmem_default_max_inodes())
 		seq_printf(seq, ",nr_inodes=%lu", sbinfo->max_inodes);
 	if (sbinfo->mode != (S_IRWXUGO | S_ISVTX))
@@ -3082,8 +3082,8 @@ int shmem_fill_super(struct super_block *sb, void *data, int silent)
 	sbinfo->free_inodes = sbinfo->max_inodes;
 
 	sb->s_maxbytes = MAX_LFS_FILESIZE;
-	sb->s_blocksize = PAGE_CACHE_SIZE;
-	sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
+	sb->s_blocksize = PAGE_SIZE;
+	sb->s_blocksize_bits = PAGE_SHIFT;
 	sb->s_magic = TMPFS_MAGIC;
 	sb->s_op = &shmem_ops;
 	sb->s_time_gran = 1;
diff --git a/mm/swap.c b/mm/swap.c
index 09fe5e97714a..a0bc206b4ac6 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -114,7 +114,7 @@ void put_pages_list(struct list_head *pages)
 
 		victim = list_entry(pages->prev, struct page, lru);
 		list_del(&victim->lru);
-		page_cache_release(victim);
+		put_page(victim);
 	}
 }
 EXPORT_SYMBOL(put_pages_list);
@@ -142,7 +142,7 @@ int get_kernel_pages(const struct kvec *kiov, int nr_segs, int write,
 			return seg;
 
 		pages[seg] = kmap_to_page(kiov[seg].iov_base);
-		page_cache_get(pages[seg]);
+		get_page(pages[seg]);
 	}
 
 	return seg;
@@ -236,7 +236,7 @@ void rotate_reclaimable_page(struct page *page)
 		struct pagevec *pvec;
 		unsigned long flags;
 
-		page_cache_get(page);
+		get_page(page);
 		local_irq_save(flags);
 		pvec = this_cpu_ptr(&lru_rotate_pvecs);
 		if (!pagevec_add(pvec, page))
@@ -294,7 +294,7 @@ void activate_page(struct page *page)
 	if (PageLRU(page) && !PageActive(page) && !PageUnevictable(page)) {
 		struct pagevec *pvec = &get_cpu_var(activate_page_pvecs);
 
-		page_cache_get(page);
+		get_page(page);
 		if (!pagevec_add(pvec, page))
 			pagevec_lru_move_fn(pvec, __activate_page, NULL);
 		put_cpu_var(activate_page_pvecs);
@@ -389,7 +389,7 @@ static void __lru_cache_add(struct page *page)
 {
 	struct pagevec *pvec = &get_cpu_var(lru_add_pvec);
 
-	page_cache_get(page);
+	get_page(page);
 	if (!pagevec_space(pvec))
 		__pagevec_lru_add(pvec);
 	pagevec_add(pvec, page);
@@ -646,7 +646,7 @@ void deactivate_page(struct page *page)
 	if (PageLRU(page) && PageActive(page) && !PageUnevictable(page)) {
 		struct pagevec *pvec = &get_cpu_var(lru_deactivate_pvecs);
 
-		page_cache_get(page);
+		get_page(page);
 		if (!pagevec_add(pvec, page))
 			pagevec_lru_move_fn(pvec, lru_deactivate_fn, NULL);
 		put_cpu_var(lru_deactivate_pvecs);
@@ -698,7 +698,7 @@ void lru_add_drain_all(void)
 }
 
 /**
- * release_pages - batched page_cache_release()
+ * release_pages - batched put_page()
  * @pages: array of pages to release
  * @nr: number of pages
  * @cold: whether the pages are cache cold
diff --git a/mm/swap_state.c b/mm/swap_state.c
index 69cb2464e7dc..366ce3518703 100644
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -85,7 +85,7 @@ int __add_to_swap_cache(struct page *page, swp_entry_t entry)
 	VM_BUG_ON_PAGE(PageSwapCache(page), page);
 	VM_BUG_ON_PAGE(!PageSwapBacked(page), page);
 
-	page_cache_get(page);
+	get_page(page);
 	SetPageSwapCache(page);
 	set_page_private(page, entry.val);
 
@@ -109,7 +109,7 @@ int __add_to_swap_cache(struct page *page, swp_entry_t entry)
 		VM_BUG_ON(error == -EEXIST);
 		set_page_private(page, 0UL);
 		ClearPageSwapCache(page);
-		page_cache_release(page);
+		put_page(page);
 	}
 
 	return error;
@@ -226,7 +226,7 @@ void delete_from_swap_cache(struct page *page)
 	spin_unlock_irq(&address_space->tree_lock);
 
 	swapcache_free(entry);
-	page_cache_release(page);
+	put_page(page);
 }
 
 /* 
@@ -252,7 +252,7 @@ static inline void free_swap_cache(struct page *page)
 void free_page_and_swap_cache(struct page *page)
 {
 	free_swap_cache(page);
-	page_cache_release(page);
+	put_page(page);
 }
 
 /*
@@ -380,7 +380,7 @@ struct page *__read_swap_cache_async(swp_entry_t entry, gfp_t gfp_mask,
 	} while (err != -ENOMEM);
 
 	if (new_page)
-		page_cache_release(new_page);
+		put_page(new_page);
 	return found_page;
 }
 
@@ -495,7 +495,7 @@ struct page *swapin_readahead(swp_entry_t entry, gfp_t gfp_mask,
 			continue;
 		if (offset != entry_offset)
 			SetPageReadahead(page);
-		page_cache_release(page);
+		put_page(page);
 	}
 	blk_finish_plug(&plug);
 
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 560ad380634c..83874eced5bf 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -119,7 +119,7 @@ __try_to_reclaim_swap(struct swap_info_struct *si, unsigned long offset)
 		ret = try_to_free_swap(page);
 		unlock_page(page);
 	}
-	page_cache_release(page);
+	put_page(page);
 	return ret;
 }
 
@@ -1000,7 +1000,7 @@ int free_swap_and_cache(swp_entry_t entry)
 			page = find_get_page(swap_address_space(entry),
 						entry.val);
 			if (page && !trylock_page(page)) {
-				page_cache_release(page);
+				put_page(page);
 				page = NULL;
 			}
 		}
@@ -1017,7 +1017,7 @@ int free_swap_and_cache(swp_entry_t entry)
 			SetPageDirty(page);
 		}
 		unlock_page(page);
-		page_cache_release(page);
+		put_page(page);
 	}
 	return p != NULL;
 }
@@ -1518,7 +1518,7 @@ int try_to_unuse(unsigned int type, bool frontswap,
 		}
 		if (retval) {
 			unlock_page(page);
-			page_cache_release(page);
+			put_page(page);
 			break;
 		}
 
@@ -1570,7 +1570,7 @@ int try_to_unuse(unsigned int type, bool frontswap,
 		 */
 		SetPageDirty(page);
 		unlock_page(page);
-		page_cache_release(page);
+		put_page(page);
 
 		/*
 		 * Make sure that we aren't completely killing
@@ -2574,7 +2574,7 @@ bad_swap:
 out:
 	if (page && !IS_ERR(page)) {
 		kunmap(page);
-		page_cache_release(page);
+		put_page(page);
 	}
 	if (name)
 		putname(name);
diff --git a/mm/truncate.c b/mm/truncate.c
index 7598b552ae03..b00272810871 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -118,7 +118,7 @@ truncate_complete_page(struct address_space *mapping, struct page *page)
 		return -EIO;
 
 	if (page_has_private(page))
-		do_invalidatepage(page, 0, PAGE_CACHE_SIZE);
+		do_invalidatepage(page, 0, PAGE_SIZE);
 
 	/*
 	 * Some filesystems seem to re-dirty the page even after
@@ -159,8 +159,8 @@ int truncate_inode_page(struct address_space *mapping, struct page *page)
 {
 	if (page_mapped(page)) {
 		unmap_mapping_range(mapping,
-				   (loff_t)page->index << PAGE_CACHE_SHIFT,
-				   PAGE_CACHE_SIZE, 0);
+				   (loff_t)page->index << PAGE_SHIFT,
+				   PAGE_SIZE, 0);
 	}
 	return truncate_complete_page(mapping, page);
 }
@@ -241,8 +241,8 @@ void truncate_inode_pages_range(struct address_space *mapping,
 		return;
 
 	/* Offsets within partial pages */
-	partial_start = lstart & (PAGE_CACHE_SIZE - 1);
-	partial_end = (lend + 1) & (PAGE_CACHE_SIZE - 1);
+	partial_start = lstart & (PAGE_SIZE - 1);
+	partial_end = (lend + 1) & (PAGE_SIZE - 1);
 
 	/*
 	 * 'start' and 'end' always covers the range of pages to be fully
@@ -250,7 +250,7 @@ void truncate_inode_pages_range(struct address_space *mapping,
 	 * start of the range and 'partial_end' at the end of the range.
 	 * Note that 'end' is exclusive while 'lend' is inclusive.
 	 */
-	start = (lstart + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+	start = (lstart + PAGE_SIZE - 1) >> PAGE_SHIFT;
 	if (lend == -1)
 		/*
 		 * lend == -1 indicates end-of-file so we have to set 'end'
@@ -259,7 +259,7 @@ void truncate_inode_pages_range(struct address_space *mapping,
 		 */
 		end = -1;
 	else
-		end = (lend + 1) >> PAGE_CACHE_SHIFT;
+		end = (lend + 1) >> PAGE_SHIFT;
 
 	pagevec_init(&pvec, 0);
 	index = start;
@@ -298,7 +298,7 @@ void truncate_inode_pages_range(struct address_space *mapping,
 	if (partial_start) {
 		struct page *page = find_lock_page(mapping, start - 1);
 		if (page) {
-			unsigned int top = PAGE_CACHE_SIZE;
+			unsigned int top = PAGE_SIZE;
 			if (start > end) {
 				/* Truncation within a single page */
 				top = partial_end;
@@ -311,7 +311,7 @@ void truncate_inode_pages_range(struct address_space *mapping,
 				do_invalidatepage(page, partial_start,
 						  top - partial_start);
 			unlock_page(page);
-			page_cache_release(page);
+			put_page(page);
 		}
 	}
 	if (partial_end) {
@@ -324,7 +324,7 @@ void truncate_inode_pages_range(struct address_space *mapping,
 				do_invalidatepage(page, 0,
 						  partial_end);
 			unlock_page(page);
-			page_cache_release(page);
+			put_page(page);
 		}
 	}
 	/*
@@ -538,7 +538,7 @@ invalidate_complete_page2(struct address_space *mapping, struct page *page)
 	if (mapping->a_ops->freepage)
 		mapping->a_ops->freepage(page);
 
-	page_cache_release(page);	/* pagecache ref */
+	put_page(page);	/* pagecache ref */
 	return 1;
 failed:
 	spin_unlock_irqrestore(&mapping->tree_lock, flags);
@@ -608,18 +608,18 @@ int invalidate_inode_pages2_range(struct address_space *mapping,
 					 * Zap the rest of the file in one hit.
 					 */
 					unmap_mapping_range(mapping,
-					   (loff_t)index << PAGE_CACHE_SHIFT,
+					   (loff_t)index << PAGE_SHIFT,
 					   (loff_t)(1 + end - index)
-							 << PAGE_CACHE_SHIFT,
-					    0);
+							 << PAGE_SHIFT,
+							 0);
 					did_range_unmap = 1;
 				} else {
 					/*
 					 * Just zap this page
 					 */
 					unmap_mapping_range(mapping,
-					   (loff_t)index << PAGE_CACHE_SHIFT,
-					   PAGE_CACHE_SIZE, 0);
+					   (loff_t)index << PAGE_SHIFT,
+					   PAGE_SIZE, 0);
 				}
 			}
 			BUG_ON(page_mapped(page));
@@ -744,14 +744,14 @@ void pagecache_isize_extended(struct inode *inode, loff_t from, loff_t to)
 
 	WARN_ON(to > inode->i_size);
 
-	if (from >= to || bsize == PAGE_CACHE_SIZE)
+	if (from >= to || bsize == PAGE_SIZE)
 		return;
 	/* Page straddling @from will not have any hole block created? */
 	rounded_from = round_up(from, bsize);
-	if (to <= rounded_from || !(rounded_from & (PAGE_CACHE_SIZE - 1)))
+	if (to <= rounded_from || !(rounded_from & (PAGE_SIZE - 1)))
 		return;
 
-	index = from >> PAGE_CACHE_SHIFT;
+	index = from >> PAGE_SHIFT;
 	page = find_lock_page(inode->i_mapping, index);
 	/* Page not cached? Nothing to do */
 	if (!page)
@@ -763,7 +763,7 @@ void pagecache_isize_extended(struct inode *inode, loff_t from, loff_t to)
 	if (page_mkclean(page))
 		set_page_dirty(page);
 	unlock_page(page);
-	page_cache_release(page);
+	put_page(page);
 }
 EXPORT_SYMBOL(pagecache_isize_extended);
 
diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c
index 9f3a0290b273..af817e5060fb 100644
--- a/mm/userfaultfd.c
+++ b/mm/userfaultfd.c
@@ -93,7 +93,7 @@ out_release_uncharge_unlock:
 	pte_unmap_unlock(dst_pte, ptl);
 	mem_cgroup_cancel_charge(page, memcg, false);
 out_release:
-	page_cache_release(page);
+	put_page(page);
 	goto out;
 }
 
@@ -287,7 +287,7 @@ out_unlock:
 	up_read(&dst_mm->mmap_sem);
 out:
 	if (page)
-		page_cache_release(page);
+		put_page(page);
 	BUG_ON(copied < 0);
 	BUG_ON(err > 0);
 	BUG_ON(!copied && !err);
diff --git a/mm/zswap.c b/mm/zswap.c
index bf14508afd64..91dad80d068b 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -869,7 +869,7 @@ static int zswap_writeback_entry(struct zpool *pool, unsigned long handle)
 
 	case ZSWAP_SWAPCACHE_EXIST:
 		/* page is already in the swap cache, ignore for now */
-		page_cache_release(page);
+		put_page(page);
 		ret = -EEXIST;
 		goto fail;
 
@@ -897,7 +897,7 @@ static int zswap_writeback_entry(struct zpool *pool, unsigned long handle)
 
 	/* start writeback */
 	__swap_writepage(page, &wbc, end_swap_bio_write);
-	page_cache_release(page);
+	put_page(page);
 	zswap_written_back_pages++;
 
 	spin_lock(&tree->lock);