Re: [RFC PATCH v11 bpf-next 10/14] bpf: Add d_path helper

[KP Singh]

On 09.08.20 17:02, Jiri Olsa wrote:
> Adding d_path helper function that returns full path for
> given 'struct path' object, which needs to be the kernel
> BTF 'path' object. The path is returned in buffer provided
> 'buf' of size 'sz' and is zero terminated.
> 
>   bpf_d_path(&file->f_path, buf, size);
> 
> The helper calls directly d_path function, so there's only
> limited set of function it can be called from. Adding just
> very modest set for the start.
> 
> Updating also bpf.h tools uapi header and adding 'path' to
> bpf_helpers_doc.py script.
> 
> Acked-by: Andrii Nakryiko <andr...@fb.com>

Acked-by: KP Singh <kpsi...@google.com>

Thank you so much for working on this! 

> Signed-off-by: Jiri Olsa <jo...@kernel.org>
> ---

[...]

>  /* integer value in 'imm' field of BPF_CALL instruction selects which helper
>