On Tue, Apr 28, 2020 at 05:16:04PM -0700, Andrii Nakryiko wrote: > This patch series adds various observability APIs to bpf_link: > - each bpf_link now gets ID, similar to bpf_map and bpf_prog, by which > user-space can iterate over all existing bpf_links and create limited FD > from ID; > - allows to get extra object information with bpf_link general and > type-specific information; > - implements `bpf link show` command which lists all active bpf_links in the > system; > - implements `bpf link pin` allowing to pin bpf_link by ID or from other > pinned path. > > v2->v3: > - improve spin locking around bpf_link ID (Alexei); > - simplify bpf_link_info handling and fix compilation error on sh arch; > v1->v2: > - simplified `bpftool link show` implementation (Quentin); > - fixed formatting of bpftool-link.rst (Quentin); > - fixed attach type printing logic (Quentin); > rfc->v1: > - dropped read-only bpf_links (Alexei); > - fixed bug in bpf_link_cleanup() not removing ID; > - fixed bpftool link pinning search logic; > - added bash-completion and man page. Applied, Thanks
