bpf: rework cgroup storage pointer passing

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To simplify the following introduction of per-cpu cgroup storage,
let's rework a bit a mechanism of passing a pointer to a cgroup
storage into the bpf_get_local_storage(). Let's save a pointer
to the corresponding bpf_cgroup_storage structure, instead of
a pointer to the actual buffer.

It will help us to handle per-cpu storage later, which has
a different way of accessing to the actual data.

Signed-off-by: Roman Gushchin <guro@fb.com>
Acked-by: Song Liu <songliubraving@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

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Roman Gushchin 2018-09-28 14:45:40 +00:00 • committed by Daniel Borkmann

parent 8bad74f984

commit f294b37ec7

3 changed files with 12 additions and 12 deletions

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13

include/linux/bpf-cgroup.h

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8

kernel/bpf/helpers.c

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3

kernel/bpf/local_storage.c

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