CODEOWNERS: assign code ownership to florianl, mmat11 and dylandreime…

…rink

As discussed at the Cilium Dev Summit 2024, this codifies review assignments
and expectations around interactivity on PR reviews.

Signed-off-by: Timo Beckers <timo@isovalent.com>

CODEOWNERS

@@ -1,2 +1,9 @@
 * @cilium/ebpf-lib-maintainers
+
 features/ @rgo3
+link/ @mmat11
+
+perf/ @florianl
+ringbuf/ @florianl
+
+btf/ @dylandreimerink

docs/ebpf/contributing/index.md

@@ -67,7 +67,7 @@ from upstream kernel versions. You can update them to the latest version by:
 
 Finally, bump the tested kernels in `.github/workflows/ci.yml`
 
-## Project permissions
+## Project Roles
 
 If you'd like to contribute to the library more regularly, one of the
 [maintainers][ebpf-lib-maintainers] can add you to the appropriate team or mark
@@ -81,10 +81,13 @@ you as a code owner. Please create an issue in the repository.
     * Have ["Write"][permissions] role
     * CODEOWNER of a part of the code base
     * In-depth review of code, escalates to maintainers if necessary
+        * For bugfixes: review within 1-2 days
+        * Otherwise: review within a work week
+        * When lacking time: escalate to maintainers, but don’t ignore
 * [ebpf-lib-maintainers]
     * Have ["Admin"][permissions] role
     * Manage releases
-    * Triage incoming issues and discussions
+    * Triage incoming issues and discussions and pull in CODEOWNERS if needed
     * Maintain CI & project permissions
     * Maintain roadmap and encourage contributions towards it
     * Merge approved PRs
@@ -94,4 +97,4 @@ you as a code owner. Please create an issue in the repository.
 [permissions]: https://docs.github.com/en/organizations/managing-user-access-to-your-organizations-repositories/repository-roles-for-an-organization#permissions-for-each-role
 [ebpf-go-contributors]: https://github.com/orgs/cilium/teams/ebpf-go-contributors/members
 [ebpf-go-reviewers]: https://github.com/orgs/cilium/teams/ebpf-go-reviewers/members
-[ebpf-lib-maintainers]: https://github.com/orgs/cilium/teams/ebpf-lib-maintainers/members
+[ebpf-lib-maintainers]: https://github.com/orgs/cilium/teams/ebpf-lib-maintainers/members