d2e614cb07
Currently, running sample "task_fd_query" and "tracex3" occurs the following error. On kernel v5.0-rc* this sample will be unavailable due to the removal of function 'blk_start_request' at commit "a1ce35f". (function removed, as "Single Queue IO scheduler" no longer exists) $ sudo ./task_fd_query failed to create kprobe 'blk_start_request' error 'No such file or directory' This commit will change the function 'blk_start_request' to 'blk_mq_start_request' to fix the broken sample. Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
20 lines
412 B
C
20 lines
412 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
#include <linux/version.h>
|
|
#include <linux/ptrace.h>
|
|
#include <uapi/linux/bpf.h>
|
|
#include "bpf_helpers.h"
|
|
|
|
SEC("kprobe/blk_mq_start_request")
|
|
int bpf_prog1(struct pt_regs *ctx)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
SEC("kretprobe/blk_account_io_completion")
|
|
int bpf_prog2(struct pt_regs *ctx)
|
|
{
|
|
return 0;
|
|
}
|
|
char _license[] SEC("license") = "GPL";
|
|
u32 _version SEC("version") = LINUX_VERSION_CODE;
|