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From: Alexei Starovoitov <alexei.starovoitov@gmail.com>
To: Andrii Nakryiko <andriin@fb.com>
Cc: bpf <bpf@vger.kernel.org>,
	Network Development <netdev@vger.kernel.org>,
	Alexei Starovoitov <ast@fb.com>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Andrii Nakryiko <andrii.nakryiko@gmail.com>,
	Kernel Team <kernel-team@fb.com>
Subject: Re: [PATCH bpf-next 0/4] Fix perf_buffer creation on systems with offline CPUs
Date: Fri, 13 Dec 2019 13:04:08 -0800	[thread overview]
Message-ID: <CAADnVQJMBbFma+0cGSJXX75=r=5jDK85AxLoqCPUWutf7bmnzg@mail.gmail.com> (raw)
In-Reply-To: <20191212013521.1689228-1-andriin@fb.com>

On Wed, Dec 11, 2019 at 5:35 PM Andrii Nakryiko <andriin@fb.com> wrote:
>
> This patch set fixes perf_buffer__new() behavior on systems which have some of
> the CPUs offline/missing (due to difference between "possible" and "online"
> sets). perf_buffer will create per-CPU buffer and open/attach to corresponding
> perf_event only on CPUs present and online at the moment of perf_buffer
> creation. Without this logic, perf_buffer creation has no chances of
> succeeding on such systems, preventing valid and correct BPF applications from
> starting.

Applied. Thanks

  reply	other threads:[~2019-12-13 21:04 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-12  1:35 [PATCH bpf-next 0/4] Fix perf_buffer creation on systems with offline CPUs Andrii Nakryiko
2019-12-13 21:04 ` Alexei Starovoitov [this message]
2019-12-16 14:44 ` Daniel Borkmann
2019-12-16 17:59   ` Andrii Nakryiko
2019-12-17 13:00     ` Daniel Borkmann
2019-12-20 17:46       ` Andrii Nakryiko
2020-02-09 17:18 ` Naresh Kamboju
2020-02-09 18:32   ` Andrii Nakryiko
2020-02-09 21:03     ` Greg Kroah-Hartman

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