6.12-stable review patch. If anyone has any objections, please let me know.
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From: Gabriele Monaco gmonaco@redhat.com
[ Upstream commit f60227f3448911b682c45041c3fbd94f6d3b15a2 ]
Currently, the userspace RV tool skips trace events triggered by the RV tool itself, this can be changed by passing the parameter -s, which sets the variable config_my_pid to 0 (instead of the tool's PID). This has the side effect of skipping events generated by idle (PID 0).
Set config_my_pid to -1 (an invalid pid) to avoid skipping idle.
Cc: Nam Cao namcao@linutronix.de Cc: Tomas Glozar tglozar@redhat.com Cc: Juri Lelli jlelli@redhat.com Cc: Clark Williams williams@redhat.com Cc: John Kacur jkacur@redhat.com Link: https://lore.kernel.org/20250723161240.194860-2-gmonaco@redhat.com Fixes: 6d60f89691fc ("tools/rv: Add in-kernel monitor interface") Signed-off-by: Gabriele Monaco gmonaco@redhat.com Signed-off-by: Steven Rostedt (Google) rostedt@goodmis.org Signed-off-by: Sasha Levin sashal@kernel.org --- tools/verification/rv/src/in_kernel.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/verification/rv/src/in_kernel.c b/tools/verification/rv/src/in_kernel.c index f04479ecc96c..ced72950cb1e 100644 --- a/tools/verification/rv/src/in_kernel.c +++ b/tools/verification/rv/src/in_kernel.c @@ -353,7 +353,7 @@ ikm_event_handler(struct trace_seq *s, struct tep_record *record,
if (config_has_id && (config_my_pid == id)) return 0; - else if (config_my_pid && (config_my_pid == pid)) + else if (config_my_pid == pid) return 0;
tep_print_event(trace_event->tep, s, record, "%16s-%-8d ", TEP_PRINT_COMM, TEP_PRINT_PID); @@ -595,7 +595,7 @@ static int parse_arguments(char *monitor_name, int argc, char **argv) config_reactor = optarg; break; case 's': - config_my_pid = 0; + config_my_pid = -1; break; case 't': config_trace = 1;