From: Song Liu <songliubraving@fb.com>
To: <bpf@vger.kernel.org>, <netdev@vger.kernel.org>, <linux-mm@kvack.org>
Cc: <ast@kernel.org>, <daniel@iogearbox.net>, <kernel-team@fb.com>,
<akpm@linux-foundation.org>, Song Liu <songliubraving@fb.com>,
Yonghong Song <yhs@fb.com>, KP Singh <kpsingh@kernel.org>
Subject: [PATCH v4 bpf-next 3/4] libbpf: introduce section "iter.s/" for sleepable bpf_iter program
Date: Thu, 4 Feb 2021 12:50:00 -0800 [thread overview]
Message-ID: <20210204205002.4075937-4-songliubraving@fb.com> (raw)
In-Reply-To: <20210204205002.4075937-1-songliubraving@fb.com>
Sleepable iterator program have access to helper functions like bpf_d_path.
Acked-by: Yonghong Song <yhs@fb.com>
Acked-by: KP Singh <kpsingh@kernel.org>
Signed-off-by: Song Liu <songliubraving@fb.com>
---
tools/lib/bpf/libbpf.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 2abbc38005684..903ccd7e93206 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -8555,6 +8555,11 @@ static const struct bpf_sec_def section_defs[] = {
.expected_attach_type = BPF_TRACE_ITER,
.is_attach_btf = true,
.attach_fn = attach_iter),
+ SEC_DEF("iter.s/", TRACING,
+ .expected_attach_type = BPF_TRACE_ITER,
+ .is_attach_btf = true,
+ .is_sleepable = true,
+ .attach_fn = attach_iter),
BPF_EAPROG_SEC("xdp_devmap/", BPF_PROG_TYPE_XDP,
BPF_XDP_DEVMAP),
BPF_EAPROG_SEC("xdp_cpumap/", BPF_PROG_TYPE_XDP,
--
2.24.1
next prev parent reply other threads:[~2021-02-04 20:51 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-04 20:49 [PATCH v4 bpf-next 0/4] introduce bpf_iter for task_vma Song Liu
2021-02-04 20:49 ` [PATCH v4 bpf-next 1/4] bpf: introduce task_vma bpf_iter Song Liu
2021-02-08 4:30 ` Yonghong Song
2021-02-04 20:49 ` [PATCH v4 bpf-next 2/4] bpf: allow bpf_d_path in sleepable bpf_iter program Song Liu
2021-02-04 20:50 ` Song Liu [this message]
2021-02-04 20:50 ` [PATCH v4 bpf-next 4/4] selftests/bpf: add test for bpf_iter_task_vma Song Liu
2021-02-08 4:38 ` Yonghong Song
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