From: Andrii Nakryiko <andrii.nakryiko@gmail.com>
To: "Toke Høiland-Jørgensen" <toke@redhat.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>,
Alexei Starovoitov <ast@fb.com>, bpf <bpf@vger.kernel.org>,
Networking <netdev@vger.kernel.org>
Subject: Re: [PATCH v4 1/2] libbpf: Add setter for initial value for internal maps
Date: Sun, 29 Mar 2020 13:06:04 -0700 [thread overview]
Message-ID: <CAEf4BzZpd_SMqsJx7UjZDUZk9UY48D2RVW2ero+Rg7=HPzRo=w@mail.gmail.com> (raw)
In-Reply-To: <20200329132253.232541-1-toke@redhat.com>
On Sun, Mar 29, 2020 at 6:23 AM Toke Høiland-Jørgensen <toke@redhat.com> wrote:
>
> For internal maps (most notably the maps backing global variables), libbpf
> uses an internal mmaped area to store the data after opening the object.
> This data is subsequently copied into the kernel map when the object is
> loaded.
>
> This adds a function to set a new value for that data, which can be used to
> before it is loaded into the kernel. This is especially relevant for RODATA
> maps, since those are frozen on load.
>
> Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
> ---
LGTM.
Acked-by: Andrii Nakryiko <andriin@fb.com>
[...]
next prev parent reply other threads:[~2020-03-29 20:06 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-26 15:17 [PATCH bpf-next] libbpf: Add bpf_object__rodata getter function Toke Høiland-Jørgensen
2020-03-26 19:20 ` Andrii Nakryiko
2020-03-27 12:24 ` Toke Høiland-Jørgensen
2020-03-27 17:49 ` Andrii Nakryiko
2020-03-27 18:39 ` Toke Høiland-Jørgensen
2020-03-27 12:58 ` [PATCH bpf-next v2] libbpf: Add getter for pointer to data area for internal maps Toke Høiland-Jørgensen
2020-03-27 19:17 ` Andrii Nakryiko
2020-03-27 22:26 ` Toke Høiland-Jørgensen
2020-03-27 22:28 ` Alexei Starovoitov
2020-03-28 0:08 ` Toke Høiland-Jørgensen
2020-03-28 18:28 ` [PATCH v3 1/2] libbpf: Add setter for initial value " Toke Høiland-Jørgensen
2020-03-28 20:01 ` Andrii Nakryiko
2020-03-29 12:17 ` Toke Høiland-Jørgensen
2020-03-29 13:22 ` [PATCH v4 " Toke Høiland-Jørgensen
2020-03-29 20:06 ` Andrii Nakryiko [this message]
2020-03-29 23:46 ` Daniel Borkmann
2020-03-29 13:22 ` [PATCH v4 2/2] selftests: Add test for overriding global data value before load Toke Høiland-Jørgensen
2020-03-29 20:13 ` Andrii Nakryiko
2020-03-28 18:28 ` [PATCH v3 " Toke Høiland-Jørgensen
2020-03-28 20:06 ` Andrii Nakryiko
2020-03-29 13:10 ` Toke Høiland-Jørgensen
2020-03-29 20:08 ` Andrii Nakryiko
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