bpf: notify offload JITs about optimizations

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Let offload JITs know when instructions are replaced and optimized
out, so they can update their state appropriately.  The optimizations
are best effort, if JIT returns an error from any callback verifier
will stop notifying it as state may now be out of sync, but the
verifier continues making progress.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Jakub Kicinski 2019-01-22 22:45:24 -08:00 • committed by Alexei Starovoitov

parent 9e4c24e7ee

commit 08ca90afba

4 changed files with 53 additions and 0 deletions

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7

include/linux/bpf.h

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5

include/linux/bpf_verifier.h

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35

kernel/bpf/offload.c

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6

kernel/bpf/verifier.c

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