diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
index 621de36..39a1669 100644
--- a/fs/ntfs/file.c
+++ b/fs/ntfs/file.c
@@ -606,11 +606,8 @@
 					ntfs_submit_bh_for_read(bh);
 					*wait_bh++ = bh;
 				} else {
-					u8 *kaddr = kmap_atomic(page, KM_USER0);
-					memset(kaddr + bh_offset(bh), 0,
-							blocksize);
-					kunmap_atomic(kaddr, KM_USER0);
-					flush_dcache_page(page);
+					zero_user_page(page, bh_offset(bh),
+							blocksize, KM_USER0);
 					set_buffer_uptodate(bh);
 				}
 			}
@@ -685,12 +682,9 @@
 						ntfs_submit_bh_for_read(bh);
 						*wait_bh++ = bh;
 					} else {
-						u8 *kaddr = kmap_atomic(page,
-								KM_USER0);
-						memset(kaddr + bh_offset(bh),
-								0, blocksize);
-						kunmap_atomic(kaddr, KM_USER0);
-						flush_dcache_page(page);
+						zero_user_page(page,
+							bh_offset(bh),
+							blocksize, KM_USER0);
 						set_buffer_uptodate(bh);
 					}
 				}
@@ -708,11 +702,8 @@
 			 */
 			if (bh_end <= pos || bh_pos >= end) {
 				if (!buffer_uptodate(bh)) {
-					u8 *kaddr = kmap_atomic(page, KM_USER0);
-					memset(kaddr + bh_offset(bh), 0,
-							blocksize);
-					kunmap_atomic(kaddr, KM_USER0);
-					flush_dcache_page(page);
+					zero_user_page(page, bh_offset(bh),
+							blocksize, KM_USER0);
 					set_buffer_uptodate(bh);
 				}
 				mark_buffer_dirty(bh);
@@ -751,10 +742,8 @@
 				if (!buffer_uptodate(bh))
 					set_buffer_uptodate(bh);
 			} else if (!buffer_uptodate(bh)) {
-				u8 *kaddr = kmap_atomic(page, KM_USER0);
-				memset(kaddr + bh_offset(bh), 0, blocksize);
-				kunmap_atomic(kaddr, KM_USER0);
-				flush_dcache_page(page);
+				zero_user_page(page, bh_offset(bh), blocksize,
+						KM_USER0);
 				set_buffer_uptodate(bh);
 			}
 			continue;
@@ -878,11 +867,8 @@
 					if (!buffer_uptodate(bh))
 						set_buffer_uptodate(bh);
 				} else if (!buffer_uptodate(bh)) {
-					u8 *kaddr = kmap_atomic(page, KM_USER0);
-					memset(kaddr + bh_offset(bh), 0,
-							blocksize);
-					kunmap_atomic(kaddr, KM_USER0);
-					flush_dcache_page(page);
+					zero_user_page(page, bh_offset(bh),
+							blocksize, KM_USER0);
 					set_buffer_uptodate(bh);
 				}
 				continue;
@@ -1137,16 +1123,12 @@
 			 * to zero the overflowing region.
 			 */
 			if (unlikely(bh_pos + blocksize > initialized_size)) {
-				u8 *kaddr;
 				int ofs = 0;
 
 				if (likely(bh_pos < initialized_size))
 					ofs = initialized_size - bh_pos;
-				kaddr = kmap_atomic(page, KM_USER0);
-				memset(kaddr + bh_offset(bh) + ofs, 0,
-						blocksize - ofs);
-				kunmap_atomic(kaddr, KM_USER0);
-				flush_dcache_page(page);
+				zero_user_page(page, bh_offset(bh) + ofs,
+						blocksize - ofs, KM_USER0);
 			}
 		} else /* if (unlikely(!buffer_uptodate(bh))) */
 			err = -EIO;
@@ -1286,11 +1268,8 @@
 				if (PageUptodate(page))
 					set_buffer_uptodate(bh);
 				else {
-					u8 *kaddr = kmap_atomic(page, KM_USER0);
-					memset(kaddr + bh_offset(bh), 0,
-							blocksize);
-					kunmap_atomic(kaddr, KM_USER0);
-					flush_dcache_page(page);
+					zero_user_page(page, bh_offset(bh),
+							blocksize, KM_USER0);
 					set_buffer_uptodate(bh);
 				}
 			}
@@ -1350,9 +1329,7 @@
 		len = PAGE_CACHE_SIZE;
 		if (len > bytes)
 			len = bytes;
-		kaddr = kmap_atomic(*pages, KM_USER0);
-		memset(kaddr, 0, len);
-		kunmap_atomic(kaddr, KM_USER0);
+		zero_user_page(*pages, 0, len, KM_USER0);
 	}
 	goto out;
 }
@@ -1473,9 +1450,7 @@
 		len = PAGE_CACHE_SIZE;
 		if (len > bytes)
 			len = bytes;
-		kaddr = kmap_atomic(*pages, KM_USER0);
-		memset(kaddr, 0, len);
-		kunmap_atomic(kaddr, KM_USER0);
+		zero_user_page(*pages, 0, len, KM_USER0);
 	}
 	goto out;
 }