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From: Pedro Tammela <pctammela@gmail.com>
To: Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Andrii Nakryiko <andrii@kernel.org>,
	Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>,
	Yonghong Song <yhs@fb.com>,
	John Fastabend <john.fastabend@gmail.com>,
	KP Singh <kpsingh@kernel.org>, Shuah Khan <shuah@kernel.org>,
	Pedro Tammela <pctammela@mojatatu.com>,
	David Verbeiren <david.verbeiren@tessares.net>,
	Matthieu Baerts <matthieu.baerts@tessares.net>,
	netdev@vger.kernel.org, bpf@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Subject: [PATCH bpf-next v5 1/2] bpf: add batched ops support for percpu array
Date: Sat, 24 Apr 2021 18:45:09 -0300	[thread overview]
Message-ID: <20210424214510.806627-2-pctammela@mojatatu.com> (raw)
In-Reply-To: <20210424214510.806627-1-pctammela@mojatatu.com>

Uses the already in-place infrastructure provided by the
'generic_map_*_batch' functions.

No tweak was needed as it transparently handles the percpu variant.

As arrays don't have delete operations, let it return a error to
user space (default behaviour).

Suggested-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
 kernel/bpf/arraymap.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/bpf/arraymap.c b/kernel/bpf/arraymap.c
index 463d25e1e67e..3c4105603f9d 100644
--- a/kernel/bpf/arraymap.c
+++ b/kernel/bpf/arraymap.c
@@ -698,6 +698,8 @@ const struct bpf_map_ops percpu_array_map_ops = {
 	.map_delete_elem = array_map_delete_elem,
 	.map_seq_show_elem = percpu_array_map_seq_show_elem,
 	.map_check_btf = array_map_check_btf,
+	.map_lookup_batch = generic_map_lookup_batch,
+	.map_update_batch = generic_map_update_batch,
 	.map_set_for_each_callback_args = map_set_for_each_callback_args,
 	.map_for_each_callback = bpf_for_each_array_elem,
 	.map_btf_name = "bpf_array",

  reply	other threads:[~2021-04-24 21:45 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-24 21:45 [PATCH bpf-next v5 0/2] add batched ops " Pedro Tammela
2021-04-24 21:45 ` Pedro Tammela [this message]
2021-04-24 21:45 ` [PATCH bpf-next v5 2/2] bpf: selftests: update array map tests for per-cpu batched ops Pedro Tammela
2021-04-27 23:20 ` [PATCH bpf-next v5 0/2] add batched ops for percpu array patchwork-bot+netdevbpf

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