btrfs: use assertion helpers for spinning writers
[sfrench/cifs-2.6.git] / fs / btrfs / extent_io.c
index cc3941ae1ff62f5cdcfada5b805aa762b26baa9d..fc0451c3e24e485cb3be0779eb0448cbf8a68c8c 100644 (file)
@@ -4682,7 +4682,6 @@ __alloc_extent_buffer(struct btrfs_fs_info *fs_info, u64 start,
        atomic_set(&eb->blocking_readers, 0);
        atomic_set(&eb->blocking_writers, 0);
        atomic_set(&eb->spinning_readers, 0);
-       atomic_set(&eb->spinning_writers, 0);
        eb->lock_nested = 0;
        init_waitqueue_head(&eb->write_lock_wq);
        init_waitqueue_head(&eb->read_lock_wq);
@@ -4700,6 +4699,10 @@ __alloc_extent_buffer(struct btrfs_fs_info *fs_info, u64 start,
                > MAX_INLINE_EXTENT_BUFFER_SIZE);
        BUG_ON(len > MAX_INLINE_EXTENT_BUFFER_SIZE);
 
+#ifdef CONFIG_BTRFS_DEBUG
+       atomic_set(&eb->spinning_writers, 0);
+#endif
+
        return eb;
 }