Messages in this thread Patch in this message | | | From | Muhammad Falak R Wani <> | Subject | [PATCH bpf-next] samples/bpf: fix broken bpf programs due to function inlining | Date | Sun, 6 Mar 2022 17:45:35 +0530 |
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commit: "be6bfe36db17 block: inline hot paths of blk_account_io_*()" inlines the function `blk_account_io_done`. As a result we can't attach a kprobe to the function anymore. Use `__blk_account_io_done` instead.
Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com> --- samples/bpf/task_fd_query_kern.c | 2 +- samples/bpf/tracex3_kern.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/samples/bpf/task_fd_query_kern.c b/samples/bpf/task_fd_query_kern.c index c821294e1774..186ac0a79c0a 100644 --- a/samples/bpf/task_fd_query_kern.c +++ b/samples/bpf/task_fd_query_kern.c @@ -10,7 +10,7 @@ int bpf_prog1(struct pt_regs *ctx) return 0; } -SEC("kretprobe/blk_account_io_done") +SEC("kretprobe/__blk_account_io_done") int bpf_prog2(struct pt_regs *ctx) { return 0; diff --git a/samples/bpf/tracex3_kern.c b/samples/bpf/tracex3_kern.c index 710a4410b2fb..bde6591cb20c 100644 --- a/samples/bpf/tracex3_kern.c +++ b/samples/bpf/tracex3_kern.c @@ -49,7 +49,7 @@ struct { __uint(max_entries, SLOTS); } lat_map SEC(".maps"); -SEC("kprobe/blk_account_io_done") +SEC("kprobe/__blk_account_io_done") int bpf_prog2(struct pt_regs *ctx) { long rq = PT_REGS_PARM1(ctx); -- 2.35.1
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