Messages in this thread | | | Subject | Re: [PATCH v7 net-next 1/3] filter: add Extended BPF interpreter and converter | From | Eric Dumazet <> | Date | Sun, 09 Mar 2014 07:45:53 -0700 |
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On Sat, 2014-03-08 at 15:15 -0800, Alexei Starovoitov wrote:
> +/** > + * sk_run_filter_ext - run an extended filter > + * @ctx: buffer to run the filter on > + * @insn: filter to apply > + * > + * Decode and execute extended BPF instructions. > + * @ctx is the data we are operating on. > + * @filter is the array of filter instructions. > + */ > +notrace u32 sk_run_filter_ext(void *ctx, const struct sock_filter_ext *insn) > +{ > + u64 stack[64]; > + u64 regs[16]; > + void *ptr; > + u64 tmp; > + int off;
Why is this 'notrace' ?
80 u64 on the stack, that is 640 bytes to run a filter ????
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