btrfs: Document logic regarding inode in async_cow_submit
Add a comment explaining when ->inode could be NULL and why we always perform the ->async_delalloc_pages modification. Signed-off-by: NNikolay Borisov <nborisov@suse.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
Showing
想要评论请 注册 或 登录