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bpf: Consolidate task_struct BTF_ID declarations

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No need to have it defined 5 times. Once is enough.

Signed-off-by: Daniel Xu <dxu@dxuuu.xyz>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/6dcefa5bed26fe1226f26683f36819bb53ec19a2.1629772842.git.dxu@dxuuu.xyz
This commit is contained in:
Daniel Xu 2021-08-23 19:43:47 -07:00 • committed by Alexei Starovoitov
parent 1b07d00a15
commit 33c5cb3601
5 changed files with 12 additions and 15 deletions
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11
kernel/bpf/task_iter.c
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@ -525,7 +525,6 @@ static const struct seq_operations task_vma_seq_ops = {
};
BTF_ID_LIST(btf_task_file_ids)
BTF_ID(struct, task_struct)
BTF_ID(struct, file)
BTF_ID(struct, vm_area_struct)
@ -591,19 +590,19 @@ static int __init task_iter_init(void)
{
int ret;
task_reg_info.ctx_arg_info[0].btf_id = btf_task_file_ids[0];
task_reg_info.ctx_arg_info[0].btf_id = btf_task_struct_ids[0];
ret = bpf_iter_reg_target(&task_reg_info);
if (ret)
return ret;
task_file_reg_info.ctx_arg_info[0].btf_id = btf_task_file_ids[0];
task_file_reg_info.ctx_arg_info[1].btf_id = btf_task_file_ids[1];
task_file_reg_info.ctx_arg_info[0].btf_id = btf_task_struct_ids[0];
task_file_reg_info.ctx_arg_info[1].btf_id = btf_task_file_ids[0];
ret = bpf_iter_reg_target(&task_file_reg_info);
if (ret)
return ret;
task_vma_reg_info.ctx_arg_info[0].btf_id = btf_task_file_ids[0];
task_vma_reg_info.ctx_arg_info[1].btf_id = btf_task_file_ids[2];
task_vma_reg_info.ctx_arg_info[0].btf_id = btf_task_struct_ids[0];
task_vma_reg_info.ctx_arg_info[1].btf_id = btf_task_file_ids[1];
return bpf_iter_reg_target(&task_vma_reg_info);
}
late_initcall(task_iter_init);