From: Andrew Morton <akpm@linux-foundation.org>
To: Zhen Ni <zhen.ni@easystack.cn>
Cc: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org,
eddyz87@gmail.com, memxor@gmail.com, martin.lau@linux.dev,
song@kernel.org, yonghong.song@linux.dev, jolsa@kernel.org,
emil@etsalapatis.com, ihor.solodrai@linux.dev, vbabka@kernel.org,
surenb@google.com, mhocko@suse.com, brendan.jackman@linux.dev,
hannes@cmpxchg.org, ziy@nvidia.com, shuah@kernel.org,
bpf@vger.kernel.org, linux-mm@kvack.org,
linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org,
Zhen Ni <zhen.ni@easystack.cn>
Subject: Re: [PATCH v3 0/7] mm/page_owner: add bpf_iter and kfuncs
Date: Wed, 21 Oct 2026 11:52:40 -0700 [thread overview]
Message-ID: <20261021115240.f195a2a55364fe300cbb6983@linux-foundation.org> (raw)
In-Reply-To: <20261021112437.1799213-1-zhen.ni@easystack.cn>
On Wed, 21 Oct 2026 19:24:30 +0800 Zhen Ni <zhen.ni@easystack.cn> 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?
prev parent reply other threads:[~2026-10-21 18:52 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-21 11:24 Zhen Ni
2026-10-21 11:24 ` [PATCH v3 1/7] mm/page_owner: extract page_owner_next_eligible() from read loop Zhen Ni
2026-10-21 11:51 ` bot+bpf-ci
2026-10-21 11:24 ` [PATCH v3 2/7] mm/page_owner: protect page access with mem-hotplug read lock Zhen Ni
2026-10-21 12:02 ` bot+bpf-ci
2026-10-21 11:24 ` [PATCH v3 3/7] mm/page_owner: add bpf_iter target "page_owner" Zhen Ni
2026-10-21 11:24 ` [PATCH v3 4/7] mm/page_owner: add open-coded page_owner iterator Zhen Ni
2026-10-21 11:24 ` [PATCH v3 5/7] mm/page_owner: record the NUMA node in the scan cursor Zhen Ni
2026-10-21 11:24 ` [PATCH v3 6/7] mm/page_owner: add bpf_page_owner_get_memcg_info() kfunc Zhen Ni
2026-10-21 11:24 ` [PATCH v3 7/7] selftests/bpf: add tests for the page_owner bpf_iter target Zhen Ni
2026-10-21 18:52 ` Andrew Morton [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20261021115240.f195a2a55364fe300cbb6983@linux-foundation.org \
--to=akpm@linux-foundation.org \
--cc=andrii@kernel.org \
--cc=ast@kernel.org \
--cc=bpf@vger.kernel.org \
--cc=brendan.jackman@linux.dev \
--cc=daniel@iogearbox.net \
--cc=eddyz87@gmail.com \
--cc=emil@etsalapatis.com \
--cc=hannes@cmpxchg.org \
--cc=ihor.solodrai@linux.dev \
--cc=jolsa@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-kselftest@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=martin.lau@linux.dev \
--cc=memxor@gmail.com \
--cc=mhocko@suse.com \
--cc=shuah@kernel.org \
--cc=song@kernel.org \
--cc=surenb@google.com \
--cc=vbabka@kernel.org \
--cc=yonghong.song@linux.dev \
--cc=zhen.ni@easystack.cn \
--cc=ziy@nvidia.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®