From: Hou Tao <houtao1@huawei.com>
To: Alexei Starovoitov <ast@kernel.org>
Cc: Martin KaFai Lau <kafai@fb.com>, Yonghong Song <yhs@fb.com>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>,
"David S . Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>, <netdev@vger.kernel.org>,
<bpf@vger.kernel.org>, <houtao1@huawei.com>
Subject: [PATCH bpf-next] bpf: support bpf_jit_enable=2 for CONFIG_BPF_JIT_ALWAYS_ON
Date: Fri, 31 Dec 2021 23:35:50 +0800 [thread overview]
Message-ID: <20211231153550.3807430-1-houtao1@huawei.com> (raw)
bpf_jit_enable=2 is used to dump the jited images for debug purpose,
however if CONFIG_BPF_JIT_ALWAYS_ON is enabled, its value is fixed
as one and can not be changed. So make the debug switch work again.
Signed-off-by: Hou Tao <houtao1@huawei.com>
---
net/core/sysctl_net_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index 7b4d485aac7a..20e44427afa8 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -387,7 +387,7 @@ static struct ctl_table net_core_table[] = {
.proc_handler = proc_dointvec_minmax_bpf_enable,
# ifdef CONFIG_BPF_JIT_ALWAYS_ON
.extra1 = SYSCTL_ONE,
- .extra2 = SYSCTL_ONE,
+ .extra2 = &two,
# else
.extra1 = SYSCTL_ZERO,
.extra2 = &two,
--
2.27.0
next reply other threads:[~2021-12-31 15:20 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-31 15:35 Hou Tao [this message]
2021-12-31 16:32 ` [PATCH bpf-next] bpf: support bpf_jit_enable=2 for CONFIG_BPF_JIT_ALWAYS_ON Alexei Starovoitov
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