From: Qing Wang <wangqing7171@gmail.com>
To: chen.dylane@gmail.com
Cc: acme@kernel.org, adrian.hunter@intel.com,
alexander.shishkin@linux.intel.com, andrii.nakryiko@gmail.com,
bpf@vger.kernel.org, irogers@google.com, jolsa@kernel.org,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
mark.rutland@arm.com, mingo@redhat.com, namhyung@kernel.org,
peterz@infradead.org, radoslaw.zielonek@gmail.com,
syzbot+72a43cdb78469f7fbad1@syzkaller.appspotmail.com,
wangqing7171@gmail.com
Subject: Re: [PATCH] perf callchain: Fix suspicious RCU usage in get_callchain_entry()
Date: Wed, 28 Jan 2026 16:45:38 +0800 [thread overview]
Message-ID: <20260128084538.1889001-1-wangqing7171@gmail.com> (raw)
In-Reply-To: <874829ba-00b9-49cd-8f67-a4c33a8f409f@gmail.com>
On Wed, 28 Jan 2026 at 16:19, Tao Chen <chen.dylane@gmail.com> wrote:
> I have a change that will remove RCU. As Andrii pointed out, using
> get_callchain_entry without RCU lock in BPF appears to be safe for now.
> Please point out if I've missed anything.
Oh, that's a great way. Thank you for reminding me.
--
Best regards,
Qing
prev parent reply other threads:[~2026-01-28 8:45 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-15 10:23 [PATCH] perf callchain: Fix suspicious RCU usage in get_callchain_entry() Radoslaw Zielonek
2024-07-15 10:47 ` Peter Zijlstra
2024-07-18 17:41 ` Andrii Nakryiko
2026-01-28 6:26 ` Qing Wang
2026-01-28 8:19 ` Tao Chen
2026-01-28 8:45 ` Qing Wang [this message]
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