Re: [PATCH v3 0/7] mm/page_owner: add bpf_iter and kfuncs

[Andrew Morton]

On Wed, 21 Oct 2026 19:24:30 +0800 Zhen Ni <zhen.ni@xxxxxxxxxxxx> wrote:

> page_owner records who allocated every page and is a core memory-debug
> facility, but it currently reaches userspace as the debugfs flat dump:
> slicing allocations by pid, comm, NUMA node, cgroup or stack, etc.,
> means streaming and parsing the entire file in userspace, which is
> expensive on large hosts and hard to query live.

Confused.  Your series 8570b65220e8 ("mm/page_owner: add print_mode
filter") addressed this significantly?