diff --git a/[refs] b/[refs]
index de178f7524d4..e235fed4693c 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 489406626c42c0176fddae2182d33be2cfb9840c
+refs/heads/master: bedb2cca7252d08c6ca3085826e30f65bdc3b54b
diff --git a/trunk/fs/btrfs/super.c b/trunk/fs/btrfs/super.c
index 0fadcdba8ce4..915ac14c2064 100644
--- a/trunk/fs/btrfs/super.c
+++ b/trunk/fs/btrfs/super.c
@@ -413,7 +413,15 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
 			btrfs_set_opt(info->mount_opt, NODATASUM);
 			break;
 		case Opt_nodatacow:
-			printk(KERN_INFO "btrfs: setting nodatacow\n");
+			if (!btrfs_test_opt(root, COMPRESS) ||
+				!btrfs_test_opt(root, FORCE_COMPRESS)) {
+					printk(KERN_INFO "btrfs: setting nodatacow, compression disabled\n");
+			} else {
+				printk(KERN_INFO "btrfs: setting nodatacow\n");
+			}
+			info->compress_type = BTRFS_COMPRESS_NONE;
+			btrfs_clear_opt(info->mount_opt, COMPRESS);
+			btrfs_clear_opt(info->mount_opt, FORCE_COMPRESS);
 			btrfs_set_opt(info->mount_opt, NODATACOW);
 			btrfs_set_opt(info->mount_opt, NODATASUM);
 			break;
@@ -428,10 +436,14 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
 				compress_type = "zlib";
 				info->compress_type = BTRFS_COMPRESS_ZLIB;
 				btrfs_set_opt(info->mount_opt, COMPRESS);
+				btrfs_clear_opt(info->mount_opt, NODATACOW);
+				btrfs_clear_opt(info->mount_opt, NODATASUM);
 			} else if (strcmp(args[0].from, "lzo") == 0) {
 				compress_type = "lzo";
 				info->compress_type = BTRFS_COMPRESS_LZO;
 				btrfs_set_opt(info->mount_opt, COMPRESS);
+				btrfs_clear_opt(info->mount_opt, NODATACOW);
+				btrfs_clear_opt(info->mount_opt, NODATASUM);
 				btrfs_set_fs_incompat(info, COMPRESS_LZO);
 			} else if (strncmp(args[0].from, "no", 2) == 0) {
 				compress_type = "no";