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e7c30675a7
Currently a few pointer dereferences need to be made to both check if BPF filters are installed, and then also to retrieve the actual filter for the opcode. Cache the table in ctx->bpf_filters to avoid that. Add a bit of debug info on ring exit to show if we ever got this wrong. Small risk of that given that the table is currently only updated in one spot, but once task forking is enabled, that will add one more spot. Reviewed-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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