Re: [PATCH] tools/cgroup/slabinfo: Fix use of slab.memcg_data

[Hongfu Li]

> After the introduce slabobj_ext to support slab object extensions, the
> memcg_slabinfo tool broke. An attempt to run it produces a trace like
> this:
> Traceback (most recent call last):
>   File "/usr/local/bin/drgn", line 8, in <module>
>     sys.exit(_main())
>              ^^^^^^^
>   File "/usr/local/lib64/python3.11/site-packages/drgn/cli.py", line 688, in _main
>     runpy.run_path(
>   File "<frozen runpy>", line 291, in run_path
>   File "<frozen runpy>", line 98, in _run_module_code
>   File "<frozen runpy>", line 88, in _run_code
>   File "/root/memcg_slabinfo.py", line 225, in <module>
>     main()
>   File "/root/memcg_slabinfo.py", line 195, in main
>     objcg_vec_raw = slab.memcg_data.value_()
> AttributeError: 'struct slab' has no member 'memcg_data'
> 
> Fixes: 21c690a349ba ("mm: introduce slabobj_ext to support slab object extensions")
> Signed-off-by: Hongfu Li <lihongfu@xxxxxxxxxx>
> ---
>  tools/cgroup/memcg_slabinfo.py | 20 ++++++++++++++------
>  1 file changed, 14 insertions(+), 6 deletions(-)

Hi,
Gentle ping on this patch.

I’d appreciate any feedback whenever you get time, or let me know if I
should resend/rework anything.

Regards,
Hongfu Li