diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index 8405d07b49cd..de6b60c52292 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -156,6 +156,19 @@ static struct btrfs_ordered_extent *alloc_ordered_extent(
 	const bool is_nocow = (flags &
 	       ((1U << BTRFS_ORDERED_NOCOW) | (1U << BTRFS_ORDERED_PREALLOC)));
 
+	/* Only one type flag can be set. */
+	ASSERT(has_single_bit_set(flags & BTRFS_ORDERED_EXCLUSIVE_FLAGS));
+
+	/* DIRECT cannot be set with COMPRESSED nor ENCODED. */
+	if (test_bit(BTRFS_ORDERED_DIRECT, &flags)) {
+		ASSERT(!test_bit(BTRFS_ORDERED_COMPRESSED, &flags));
+		ASSERT(!test_bit(BTRFS_ORDERED_ENCODED, &flags));
+	}
+
+	/* ENCODED must be set with COMPRESSED. */
+	if (test_bit(BTRFS_ORDERED_ENCODED, &flags))
+		ASSERT(test_bit(BTRFS_ORDERED_COMPRESSED, &flags));
+
 	/*
 	 * For a NOCOW write we can free the qgroup reserve right now. For a COW
 	 * one we transfer the reserved space from the inode's iotree into the
diff --git a/fs/btrfs/ordered-data.h b/fs/btrfs/ordered-data.h
index cd74c5ecfd67..03e12380a2fd 100644
--- a/fs/btrfs/ordered-data.h
+++ b/fs/btrfs/ordered-data.h
@@ -47,8 +47,25 @@ struct btrfs_ordered_sum {
  * IO is done and any metadata is inserted into the tree.
  */
 enum {
+	/* Extra status bits for ordered extents */
+
+	/* Set when all the pages are written. */
+	BTRFS_ORDERED_IO_DONE,
+	/* Set when removed from the tree. */
+	BTRFS_ORDERED_COMPLETE,
+	/* We had an io error when writing this out. */
+	BTRFS_ORDERED_IOERR,
+	/* Set when we have to truncate an extent. */
+	BTRFS_ORDERED_TRUNCATED,
+	/* Used during fsync to track already logged extents. */
+	BTRFS_ORDERED_LOGGED,
+	/* We have already logged all the csums of the ordered extent. */
+	BTRFS_ORDERED_LOGGED_CSUM,
+	/* We wait for this extent to complete in the current transaction. */
+	BTRFS_ORDERED_PENDING,
+
 	/*
-	 * Different types for ordered extents, one and only one of the 4 types
+	 * Different types for ordered extents, one and only one of these types
 	 * need to be set when creating ordered extent.
 	 *
 	 * REGULAR:	For regular non-compressed COW write
@@ -61,37 +78,27 @@ enum {
 	BTRFS_ORDERED_PREALLOC,
 	BTRFS_ORDERED_COMPRESSED,
 
+	/* Extra bit for encoded write, must be set with COMPRESSED. */
+	BTRFS_ORDERED_ENCODED,
+
 	/*
 	 * Extra bit for direct io, can only be set for
-	 * REGULAR/NOCOW/PREALLOC. No direct io for compressed extent.
+	 * REGULAR/NOCOW/PREALLOC. Must not be set for COMPRESSED nor ENCODED.
 	 */
 	BTRFS_ORDERED_DIRECT,
 
-	/* Extra status bits for ordered extents */
-
-	/* set when all the pages are written */
-	BTRFS_ORDERED_IO_DONE,
-	/* set when removed from the tree */
-	BTRFS_ORDERED_COMPLETE,
-	/* We had an io error when writing this out */
-	BTRFS_ORDERED_IOERR,
-	/* Set when we have to truncate an extent */
-	BTRFS_ORDERED_TRUNCATED,
-	/* Used during fsync to track already logged extents */
-	BTRFS_ORDERED_LOGGED,
-	/* We have already logged all the csums of the ordered extent */
-	BTRFS_ORDERED_LOGGED_CSUM,
-	/* We wait for this extent to complete in the current transaction */
-	BTRFS_ORDERED_PENDING,
-	/* BTRFS_IOC_ENCODED_WRITE */
-	BTRFS_ORDERED_ENCODED,
+	BTRFS_ORDERED_NR_FLAGS,
 };
+static_assert(BTRFS_ORDERED_NR_FLAGS <= BITS_PER_LONG);
+
+/* One and only one flag can be set. */
+#define BTRFS_ORDERED_EXCLUSIVE_FLAGS ((1UL << BTRFS_ORDERED_REGULAR) |		\
+				       (1UL << BTRFS_ORDERED_NOCOW) |		\
+				       (1UL << BTRFS_ORDERED_PREALLOC) |	\
+				       (1UL << BTRFS_ORDERED_COMPRESSED))
 
 /* BTRFS_ORDERED_* flags that specify the type of the extent. */
-#define BTRFS_ORDERED_TYPE_FLAGS ((1UL << BTRFS_ORDERED_REGULAR) |	\
-				  (1UL << BTRFS_ORDERED_NOCOW) |	\
-				  (1UL << BTRFS_ORDERED_PREALLOC) |	\
-				  (1UL << BTRFS_ORDERED_COMPRESSED) |	\
+#define BTRFS_ORDERED_TYPE_FLAGS (BTRFS_ORDERED_EXCLUSIVE_FLAGS |	\
 				  (1UL << BTRFS_ORDERED_DIRECT) |	\
 				  (1UL << BTRFS_ORDERED_ENCODED))