On Thu, Apr 16, 2020 at 10:10:36AM +0800, Ming Lei wrote: > In theory, multiple partitions can be traced concurrently, but looks > it never works, so it won't cause trouble for multiple partition trace. > > One userspace visible change is that blktrace debugfs dir name is switched > to disk name from partition name in case of partition trace, will it > break some utilities? How is this possible, its not clear to me, we go from: - q->debugfs_dir = debugfs_create_dir(kobject_name(q->kobj.parent), - blk_debugfs_root); To this: + q->debugfs_dir = debugfs_create_dir(kobject_name(q->kobj.parent), + blk_debugfs_root); Maybe I am overlooking something. Luis
