We have a bpf manager (bpfman) running on the host to maintain the lifecycle of all the bpf progs and maps on this host. The purpose of the bpfman includes, - pin and unpin bpf progs and maps - attach and detach bpf progs - update running bpf progs and the related bpf maps - update some running bpf progs only without updating the related bpf maps - check the possible conflict of bpf progs - etc In order to safely do these works, we used many tools to get the required information, like bpftool and some other customized tools. Some of these works seem a little heavy. After the preloaded progs.debug and maps.debug are introduced, we decided to improve these two files to get the full view of progs and maps that required by bpfman. This patchset includes below features, - the pinned file of progs and maps are introduced into these two files - the relateship of progs and maps is introduced into progs.debug With these features we may also improve how bpftool get the pinned file[1] in the next step. [1]. https://github.com/torvalds/linux/blob/master/tools/bpf/bpftool/prog.c#L648 Yafang Shao (4): bpf: Add pin_name into struct bpf_prog_aux bpf: Add pin_name into struct bpf_map bpf: show pinned file name in {progs, maps}.debug bpf: Show the used maps of each prog in progs.debug include/linux/bpf.h | 3 + include/uapi/linux/bpf.h | 1 + kernel/bpf/inode.c | 29 +- kernel/bpf/preload/iterators/iterators.bpf.c | 33 +- kernel/bpf/preload/iterators/iterators.skel.h | 676 +++++++++++++++----------- 5 files changed, 460 insertions(+), 282 deletions(-) -- 1.8.3.1
