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bpf: Move trampoline JIT image allocation to a function

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Refactor the image allocation in the BPF trampoline code into a
separate function, so it can be shared with the BPF dispatcher in
upcoming commits.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20191213175112.30208-2-bjorn.topel@gmail.com
This commit is contained in:
Björn Töpel 2019-12-13 18:51:07 +01:00 • committed by Alexei Starovoitov
parent 91cbdf740a
commit 98e8627efc
2 changed files with 18 additions and 7 deletions
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1
include/linux/bpf.h
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@ -475,6 +475,7 @@ struct bpf_trampoline *bpf_trampoline_lookup(u64 key);
int bpf_trampoline_link_prog(struct bpf_prog *prog);
int bpf_trampoline_unlink_prog(struct bpf_prog *prog);
void bpf_trampoline_put(struct bpf_trampoline *tr);
void *bpf_jit_alloc_exec_page(void);
#else
static inline struct bpf_trampoline *bpf_trampoline_lookup(u64 key)
{