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| author | Yonghong Song <yhs@fb.com> | 2020-07-23 11:41:09 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-07-25 20:16:32 -0700 |
| commit | 14fc6bd6b79c430f615500d0fe6cea4722110db8 (patch) | |
| tree | 5fef4ccfed6460489ece68286530134f630ad4eb /kernel/bpf/prog_iter.c | |
| parent | a228a64fc1e4428e2b96dc68e9ad3c447095c9e7 (diff) | |
| download | lwn-14fc6bd6b79c430f615500d0fe6cea4722110db8.tar.gz lwn-14fc6bd6b79c430f615500d0fe6cea4722110db8.zip | |
bpf: Refactor bpf_iter_reg to have separate seq_info member
There is no functionality change for this patch.
Struct bpf_iter_reg is used to register a bpf_iter target,
which includes information for both prog_load, link_create
and seq_file creation.
This patch puts fields related seq_file creation into
a different structure. This will be useful for map
elements iterator where one iterator covers different
map types and different map types may have different
seq_ops, init/fini private_data function and
private_data size.
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200723184109.590030-1-yhs@fb.com
Diffstat (limited to 'kernel/bpf/prog_iter.c')
| -rw-r--r-- | kernel/bpf/prog_iter.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/kernel/bpf/prog_iter.c b/kernel/bpf/prog_iter.c index 6541b577d69f..53a73c841c13 100644 --- a/kernel/bpf/prog_iter.c +++ b/kernel/bpf/prog_iter.c @@ -81,17 +81,21 @@ static const struct seq_operations bpf_prog_seq_ops = { BTF_ID_LIST(btf_bpf_prog_id) BTF_ID(struct, bpf_prog) -static struct bpf_iter_reg bpf_prog_reg_info = { - .target = "bpf_prog", +static const struct bpf_iter_seq_info bpf_prog_seq_info = { .seq_ops = &bpf_prog_seq_ops, .init_seq_private = NULL, .fini_seq_private = NULL, .seq_priv_size = sizeof(struct bpf_iter_seq_prog_info), +}; + +static struct bpf_iter_reg bpf_prog_reg_info = { + .target = "bpf_prog", .ctx_arg_info_size = 1, .ctx_arg_info = { { offsetof(struct bpf_iter__bpf_prog, prog), PTR_TO_BTF_ID_OR_NULL }, }, + .seq_info = &bpf_prog_seq_info, }; static int __init bpf_prog_iter_init(void) |