From: Yonghong Song <yonghong.song@linux.dev>
To: Andrey Grafin <conquistador@yandex-team.ru>, bpf@vger.kernel.org
Cc: andrii@kernel.org
Subject: Re: [PATCH bpf v4 1/2] libbpf: Apply map_set_def_max_entries() for inner_maps on creation
Date: Tue, 16 Jan 2024 10:44:26 -0800 [thread overview]
Message-ID: <98222fd4-394a-43e3-bf03-3fe8d660f2c3@linux.dev> (raw)
In-Reply-To: <20240116140131.24427-1-conquistador@yandex-team.ru>
On 1/16/24 6:01 AM, Andrey Grafin wrote:
> This patch allows to auto create BPF_MAP_TYPE_ARRAY_OF_MAPS and
> BPF_MAP_TYPE_HASH_OF_MAPS with values of BPF_MAP_TYPE_PERF_EVENT_ARRAY
> by bpf_object__load().
>
> Previous behaviour created a zero filled btf_map_def for inner maps and
> tried to use it for a map creation but the linux kernel forbids to create
> a BPF_MAP_TYPE_PERF_EVENT_ARRAY map with max_entries=0.
>
> Signed-off-by: Andrey Grafin <conquistador@yandex-team.ru>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
next prev parent reply other threads:[~2024-01-16 18:44 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-16 14:01 [PATCH bpf v4 1/2] libbpf: Apply map_set_def_max_entries() for inner_maps on creation Andrey Grafin
2024-01-16 14:01 ` [PATCH bpf v4 2/2] selftest/bpf: Add map_in_maps with BPF_MAP_TYPE_PERF_EVENT_ARRAY values Andrey Grafin
2024-01-16 18:49 ` Yonghong Song
2024-01-17 10:33 ` Hou Tao
2024-01-16 18:44 ` Yonghong Song [this message]
2024-01-17 0:47 ` [PATCH bpf v4 1/2] libbpf: Apply map_set_def_max_entries() for inner_maps on creation Hou Tao
-- strict thread matches above, loose matches on Subject: below --
2024-01-16 13:34 Andrey Grafin
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=98222fd4-394a-43e3-bf03-3fe8d660f2c3@linux.dev \
--to=yonghong.song@linux.dev \
--cc=andrii@kernel.org \
--cc=bpf@vger.kernel.org \
--cc=conquistador@yandex-team.ru \
/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