On Thu, Feb 28, 2019 at 06:02:53PM +0800, Qu Wenruo wrote: > 2) No way to distinguish between different btrfs filesystems > Due to the fact that we can't get fs_info easily from extent_io_tree, > there is no way to distinguish events from different fses. > To avoid extra noise, please ensure there is only one btrfs in your > test environment. The id of the filesystem is IMO important for tracepoints, I think we can live with the 8 bytes of fs_info pointer in extent_io_tree.
