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From: Andrii Nakryiko <andrii.nakryiko@gmail.com>
To: "Toke Høiland-Jørgensen" <toke@redhat.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>,
	Alexei Starovoitov <ast@kernel.org>,
	Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>,
	Yonghong Song <yhs@fb.com>,
	Jesper Dangaard Brouer <brouer@redhat.com>,
	David Miller <davem@davemloft.net>,
	Networking <netdev@vger.kernel.org>, bpf <bpf@vger.kernel.org>
Subject: Re: [PATCH bpf-next v3 1/6] libbpf: Unpin auto-pinned maps if loading fails
Date: Fri, 8 Nov 2019 16:42:41 -0800	[thread overview]
Message-ID: <CAEf4Bzb9_1SUQSjiGfc6F-eybMrXBm7p90zauKtgBxj0SZPTog@mail.gmail.com> (raw)
In-Reply-To: <157325765579.27401.11576433476621158813.stgit@toke.dk>

On Fri, Nov 8, 2019 at 4:00 PM Toke Høiland-Jørgensen <toke@redhat.com> wrote:
> From: Toke Høiland-Jørgensen <toke@redhat.com>
> Since the automatic map-pinning happens during load, it will leave pinned
> maps around if the load fails at a later stage. Fix this by unpinning any
> pinned maps on cleanup. To avoid unpinning pinned maps that were reused
> rather than newly pinned, add a new boolean property on struct bpf_map to
> keep track of whether that map was reused or not; and only unpin those maps
> that were not reused.
> Fixes: 57a00f41644f ("libbpf: Add auto-pinning of maps when loading BPF objects")
> Acked-by: David S. Miller <davem@davemloft.net>
> Acked-by: Song Liu <songliubraving@fb.com>
> Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
> ---

Acked-by: Andrii Nakryiko <andriin@fb.com>


  reply	other threads:[~2019-11-09  0:43 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-09  0:00 [PATCH bpf-next v3 0/6] libbpf: Fix pinning and error message bugs and add new getters Toke Høiland-Jørgensen
2019-11-09  0:00 ` [PATCH bpf-next v3 1/6] libbpf: Unpin auto-pinned maps if loading fails Toke Høiland-Jørgensen
2019-11-09  0:42   ` Andrii Nakryiko [this message]
2019-11-09  0:00 ` [PATCH bpf-next v3 2/6] selftests/bpf: Add tests for automatic map unpinning on load failure Toke Høiland-Jørgensen
2019-11-09  0:00 ` [PATCH bpf-next v3 3/6] libbpf: Propagate EPERM to caller on program load Toke Høiland-Jørgensen
2019-11-09  0:44   ` Andrii Nakryiko
2019-11-09  0:00 ` [PATCH bpf-next v3 4/6] libbpf: Use pr_warn() when printing netlink errors Toke Høiland-Jørgensen
2019-11-09  0:01 ` [PATCH bpf-next v3 5/6] libbpf: Add bpf_get_link_xdp_info() function to get more XDP information Toke Høiland-Jørgensen
2019-11-09  0:51   ` Andrii Nakryiko
2019-11-09 11:20     ` Toke Høiland-Jørgensen
2019-11-09 19:10       ` Andrii Nakryiko
2019-11-09 20:18         ` Toke Høiland-Jørgensen
2019-11-09  0:01 ` [PATCH bpf-next v3 6/6] libbpf: Add getter for program size Toke Høiland-Jørgensen

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