Add a kfunc to read xattr from dentry. Also add selftest for the new kfunc. Changes v3 => v4: 1. Fix selftest build. V3: https://lore.kernel.org/bpf/20240806203340.3503805-1-song@xxxxxxxxxx/T/#u Changes v2 => v3: 1. Move the kfuncs to fs/bpf_fs_kfuncs.c. 2. Fix selftests build error on s390. (Alexei) v2: https://lore.kernel.org/bpf/20240730230805.42205-1-song@xxxxxxxxxx/T/#u Changes v1 => v2: 1. Remove 3 kfuncs that are ready yet. v1: https://lore.kernel.org/linux-fsdevel/20240725234706.655613-1-song@xxxxxxxxxx/T/#u Song Liu (3): bpf: Move bpf_get_file_xattr to fs/bpf_fs_kfuncs.c bpf: Add kfunc bpf_get_dentry_xattr() to read xattr from dentry selftests/bpf: Add tests for bpf_get_dentry_xattr fs/bpf_fs_kfuncs.c | 62 +++++++++++++++++ kernel/trace/bpf_trace.c | 68 ------------------- tools/testing/selftests/bpf/bpf_kfuncs.h | 9 +++ .../selftests/bpf/prog_tests/fs_kfuncs.c | 9 ++- .../selftests/bpf/progs/test_get_xattr.c | 37 ++++++++-- 5 files changed, 111 insertions(+), 74 deletions(-) -- 2.43.5
