diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index a3b628ea4d64..4049f533e35e 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -992,8 +992,8 @@ struct btrfs_fs_info {
 	 */
 	int send_in_progress;
 
-	/* Type of exclusive operation running */
-	unsigned long exclusive_operation;
+	/* Type of exclusive operation running, protected by super_lock */
+	enum btrfs_exclusive_operation exclusive_operation;
 
 	/*
 	 * Zone size > 0 when in ZONED mode, otherwise it's used for a check
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index a7739461533d..c4e710ea08ba 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -353,15 +353,29 @@ update_flags:
 	return ret;
 }
 
+/*
+ * Start exclusive operation @type, return true on success
+ */
 bool btrfs_exclop_start(struct btrfs_fs_info *fs_info,
 			enum btrfs_exclusive_operation type)
 {
-	return !cmpxchg(&fs_info->exclusive_operation, BTRFS_EXCLOP_NONE, type);
+	bool ret = false;
+
+	spin_lock(&fs_info->super_lock);
+	if (fs_info->exclusive_operation == BTRFS_EXCLOP_NONE) {
+		fs_info->exclusive_operation = type;
+		ret = true;
+	}
+	spin_unlock(&fs_info->super_lock);
+
+	return ret;
 }
 
 void btrfs_exclop_finish(struct btrfs_fs_info *fs_info)
 {
+	spin_lock(&fs_info->super_lock);
 	WRITE_ONCE(fs_info->exclusive_operation, BTRFS_EXCLOP_NONE);
+	spin_unlock(&fs_info->super_lock);
 	sysfs_notify(&fs_info->fs_devices->fsid_kobj, NULL, "exclusive_operation");
 }