leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

bpf: Refactor bpf_iter_reg to have separate seq_info member

Browse Source 
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
This commit is contained in:
Yonghong Song
2020-07-23 11:41:09 -07:00
committed by Alexei Starovoitov
parent a228a64fc1
commit 14fc6bd6b7
9 changed files with 64 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
kernel/bpf/prog_iter.c
View File

@@ -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)