From d2e614cb0795d935aee879e47aab231247274f13 Mon Sep 17 00:00:00 2001 From: "Daniel T. Lee" Date: Wed, 27 Feb 2019 02:52:26 -0500 Subject: 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 Signed-off-by: Daniel Borkmann --- samples/bpf/tracex3_kern.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'samples/bpf/tracex3_kern.c') 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); -- cgit v1.2.3