From: Vlastimil Babka <vbabka@suse.cz>
To: Namhyung Kim <namhyung@kernel.org>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>
Cc: Martin KaFai Lau <martin.lau@linux.dev>,
Eduard Zingerman <eddyz87@gmail.com>, Song Liu <song@kernel.org>,
Yonghong Song <yonghong.song@linux.dev>,
John Fastabend <john.fastabend@gmail.com>,
KP Singh <kpsingh@kernel.org>,
Stanislav Fomichev <sdf@fomichev.me>, Hao Luo <haoluo@google.com>,
Jiri Olsa <jolsa@kernel.org>, LKML <linux-kernel@vger.kernel.org>,
bpf@vger.kernel.org, Andrew Morton <akpm@linux-foundation.org>,
Christoph Lameter <cl@linux.com>,
Pekka Enberg <penberg@kernel.org>,
David Rientjes <rientjes@google.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Roman Gushchin <roman.gushchin@linux.dev>,
Hyeonggon Yoo <42.hyeyoo@gmail.com>,
linux-mm@kvack.org, Arnaldo Carvalho de Melo <acme@kernel.org>,
Kees Cook <kees@kernel.org>
Subject: Re: [PATCH v4 bpf-next 1/3] bpf: Add kmem_cache iterator
Date: Thu, 3 Oct 2024 09:35:40 +0200 [thread overview]
Message-ID: <29c666d1-1e68-4b90-a919-60efbc8ab7bf@suse.cz> (raw)
In-Reply-To: <20241002180956.1781008-2-namhyung@kernel.org>
On 10/2/24 20:09, Namhyung Kim wrote:
> The new "kmem_cache" iterator will traverse the list of slab caches
> and call attached BPF programs for each entry. It should check the
> argument (ctx.s) if it's NULL before using it.
>
> Now the iteration grabs the slab_mutex only if it traverse the list and
> releases the mutex when it runs the BPF program. The kmem_cache entry
> is protected by a refcount during the execution.
>
> It includes the internal "mm/slab.h" header to access kmem_cache,
> slab_caches and slab_mutex. Hope it's ok to mm folks.
>
> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz> #mm/slab
next prev parent reply other threads:[~2024-10-03 7:35 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-02 18:09 [PATCH v4 bpf-next 0/3] bpf: Add kmem_cache iterator and kfunc Namhyung Kim
2024-10-02 18:09 ` [PATCH v4 bpf-next 1/3] bpf: Add kmem_cache iterator Namhyung Kim
2024-10-03 7:35 ` Vlastimil Babka [this message]
2024-10-04 20:33 ` Song Liu
2024-10-04 21:37 ` Namhyung Kim
2024-10-04 21:46 ` Song Liu
2024-10-04 23:29 ` Namhyung Kim
2024-10-04 20:45 ` Song Liu
2024-10-04 21:42 ` Namhyung Kim
2024-10-02 18:09 ` [PATCH v4 bpf-next 2/3] mm/bpf: Add bpf_get_kmem_cache() kfunc Namhyung Kim
2024-10-04 5:31 ` Namhyung Kim
2024-10-04 20:10 ` Song Liu
2024-10-04 21:25 ` Roman Gushchin
2024-10-04 21:36 ` Song Liu
2024-10-04 21:58 ` Namhyung Kim
2024-10-04 22:57 ` Song Liu
2024-10-04 23:28 ` Namhyung Kim
2024-10-04 23:44 ` Alexei Starovoitov
2024-10-04 23:56 ` Song Liu
2024-10-06 19:00 ` Namhyung Kim
2024-10-07 12:57 ` Vlastimil Babka
2024-10-09 7:17 ` Namhyung Kim
2024-10-10 16:46 ` Namhyung Kim
2024-10-10 17:04 ` Alexei Starovoitov
2024-10-10 22:56 ` Namhyung Kim
2024-10-02 18:09 ` [PATCH v4 bpf-next 3/3] selftests/bpf: Add a test for kmem_cache_iter Namhyung Kim
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=29c666d1-1e68-4b90-a919-60efbc8ab7bf@suse.cz \
--to=vbabka@suse.cz \
--cc=42.hyeyoo@gmail.com \
--cc=acme@kernel.org \
--cc=akpm@linux-foundation.org \
--cc=andrii@kernel.org \
--cc=ast@kernel.org \
--cc=bpf@vger.kernel.org \
--cc=cl@linux.com \
--cc=daniel@iogearbox.net \
--cc=eddyz87@gmail.com \
--cc=haoluo@google.com \
--cc=iamjoonsoo.kim@lge.com \
--cc=john.fastabend@gmail.com \
--cc=jolsa@kernel.org \
--cc=kees@kernel.org \
--cc=kpsingh@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=martin.lau@linux.dev \
--cc=namhyung@kernel.org \
--cc=penberg@kernel.org \
--cc=rientjes@google.com \
--cc=roman.gushchin@linux.dev \
--cc=sdf@fomichev.me \
--cc=song@kernel.org \
--cc=yonghong.song@linux.dev \
/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