On Fri, Jul 25, 2025 at 01:27:15PM +0200, Christian Brauner wrote: > Hey Linus, > > /* Summary */ > These changes allow bpf to read extended attributes from cgroupfs. > This is useful in redirecting AF_UNIX socket connections based on cgroup > membership of the socket. One use-case is the ability to implement log > namespaces in systemd so services and containers are redirected to > different journals. > > Please note that I plan on merging bpf changes related to the vfs > exclusively via vfs trees. That was not discussed and agreed upon. > /* Testing */ The selftests/bpf had bugs flagged by BPF CI. > /* Conflicts */ > > Merge conflicts with mainline > ============================= > > No known conflicts. > > Merge conflicts with other trees > ================================ > > No known conflicts. You were told a month ago that there are conflicts and you were also told that the branch shouldn't be rebased, yet you ignored it. > Christian Brauner (3): > kernfs: remove iattr_mutex > Merge patch series "Introduce bpf_cgroup_read_xattr" > selftests/kernfs: test xattr retrieval > > Song Liu (3): > bpf: Introduce bpf_cgroup_read_xattr to read xattr of cgroup's node > bpf: Mark cgroup_subsys_state->cgroup RCU safe > selftests/bpf: Add tests for bpf_cgroup_read_xattr > > fs/bpf_fs_kfuncs.c | 34 +++++ > fs/kernfs/inode.c | 70 ++++----- > kernel/bpf/helpers.c | 3 + > kernel/bpf/verifier.c | 5 + > tools/testing/selftests/bpf/bpf_experimental.h | 3 + > .../selftests/bpf/prog_tests/cgroup_xattr.c | 145 +++++++++++++++++++ > .../selftests/bpf/progs/cgroup_read_xattr.c | 158 +++++++++++++++++++++ > .../selftests/bpf/progs/read_cgroupfs_xattr.c | 60 ++++++++ Now Linus needs to resolve the conflicts again. More details in bpf-next PR: https://lore.kernel.org/bpf/20250729180626.35057-1-alexei.starovoitov@xxxxxxxxx/
