bpf, x86: Create bpf_tramp_run_ctx on the caller thread's stack
BPF trampolines will create a bpf_tramp_run_ctx, a bpf_run_ctx, on stacks and set/reset the current bpf_run_ctx before/after calling a bpf_prog. Signed-off-by:Kui-Feng Lee <kuifeng@fb.com> Signed-off-by:
Alexei Starovoitov <ast@kernel.org> Signed-off-by:
Andrii Nakryiko <andrii@kernel.org> Acked-by:
Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220510205923.3206889-3-kuifeng@fb.com
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