bpf: Refactor reporting log_true_size for prog_load

Browse source

The next commit will add support for reporting logs via extended common
attributes, including 'log_true_size'.

To prepare for that, refactor the 'log_true_size' reporting logic by
introducing a new struct bpf_log_attr to encapsulate log-related behavior:

 * bpf_log_attr_init(): initialize log fields, which will support
   extended common attributes in the next commit.
 * bpf_log_attr_finalize(): handle log finalization and write back
   'log_true_size' to userspace.

Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Leon Hwang <leon.hwang@linux.dev>
Link: https://lore.kernel.org/r/20260512153157.28382-4-leon.hwang@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

...

This commit is contained in:

Leon Hwang 2026-05-12 23:31:52 +08:00 • committed by Alexei Starovoitov

parent b1bff40809

commit 503c039ffe

5 changed files with 57 additions and 17 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

4

include/linux/bpf.h

View file

12

include/linux/bpf_verifier.h

View file

29

kernel/bpf/log.c

View file

12

kernel/bpf/syscall.c

View file

17

kernel/bpf/verifier.c

View file