diff options
Diffstat (limited to 'kernel/trace/trace_syscalls.c')
| -rw-r--r-- | kernel/trace/trace_syscalls.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c index d7cfb6a673e3..e8540540ecab 100644 --- a/kernel/trace/trace_syscalls.c +++ b/kernel/trace/trace_syscalls.c @@ -551,6 +551,7 @@ static void perf_syscall_enter(void *ignore, struct pt_regs *regs, long id) struct syscall_metadata *sys_data; struct syscall_trace_enter *rec; struct hlist_head *head; + bool valid_prog_array; int syscall_nr; int rctx; int size; @@ -566,7 +567,8 @@ static void perf_syscall_enter(void *ignore, struct pt_regs *regs, long id) return; head = this_cpu_ptr(sys_data->enter_event->perf_events); - if (hlist_empty(head)) + valid_prog_array = bpf_prog_array_valid(sys_data->enter_event); + if (!valid_prog_array && hlist_empty(head)) return; /* get the size after alignment with the u32 buffer size field */ @@ -626,6 +628,7 @@ static void perf_syscall_exit(void *ignore, struct pt_regs *regs, long ret) struct syscall_metadata *sys_data; struct syscall_trace_exit *rec; struct hlist_head *head; + bool valid_prog_array; int syscall_nr; int rctx; int size; @@ -641,7 +644,8 @@ static void perf_syscall_exit(void *ignore, struct pt_regs *regs, long ret) return; head = this_cpu_ptr(sys_data->exit_event->perf_events); - if (hlist_empty(head)) + valid_prog_array = bpf_prog_array_valid(sys_data->exit_event); + if (!valid_prog_array && hlist_empty(head)) return; /* We can probably do that at build time */ |