mirror of
https://github.com/varun-r-mallya/Python-BPF.git
synced 2025-12-31 21:06:25 +00:00
19 lines
510 B
C
19 lines
510 B
C
#include "vmlinux.h"
|
|
#include <bpf/bpf_helpers.h>
|
|
#include <bpf/bpf_tracing.h>
|
|
#include <bpf/bpf_core_read.h>
|
|
|
|
char LICENSE[] SEC("license") = "GPL";
|
|
|
|
SEC("kprobe/blk_mq_start_request")
|
|
int example(struct pt_regs *ctx)
|
|
{
|
|
u64 a = ctx->r15;
|
|
struct request *req = (struct request *)(ctx->di);
|
|
unsigned int something_ns = BPF_CORE_READ(req, timeout);
|
|
unsigned int data_len = BPF_CORE_READ(req, __data_len);
|
|
bpf_printk("data length %lld %ld %ld\n", data_len, something_ns, a);
|
|
|
|
return 0;
|
|
}
|