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| author |   Daniel T. Lee <danieltimlee@gmail.com> | 2019-02-27 02:52:26 -0500 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2019-02-27 17:27:22 +0100 |
| commit | d2e614cb0795d935aee879e47aab231247274f13 (patch) | |
| tree | 3004ab61b1ad0e1611083510111f3faa8d3c61d0 /samples/bpf/tracex3_kern.c | |
| parent | Merge branch 'bpf-prog-stats' (diff) | |
| download | wireguard-linux-d2e614cb0795d935aee879e47aab231247274f13.tar.xz wireguard-linux-d2e614cb0795d935aee879e47aab231247274f13.zip | |
samples: bpf: fix: broken sample regarding removed function
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>
Diffstat (limited to 'samples/bpf/tracex3_kern.c')
| -rw-r--r-- | samples/bpf/tracex3_kern.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/samples/bpf/tracex3_kern.c b/samples/bpf/tracex3_kern.c index 9974c3d7c18b..ea1d4c19c132 100644 --- a/samples/bpf/tracex3_kern.c +++ b/samples/bpf/tracex3_kern.c @@ -20,7 +20,7 @@ struct bpf_map_def SEC("maps") my_map = { /* kprobe is NOT a stable ABI. If kernel internals change this bpf+kprobe * example will no longer be meaningful */ -SEC("kprobe/blk_start_request") +SEC("kprobe/blk_mq_start_request") int bpf_prog1(struct pt_regs *ctx) { long rq = PT_REGS_PARM1(ctx); |