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tracing: Remove pid in task_rename tracing output

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Remove pid in task_rename tracepoint output, since that tracepoint only
deals with the current task, and is printed by default. This also saves
some space in the entry and avoids wasted padding.

Link: https://lkml.kernel.org/r/20241105120247.596a0dc9@gandalf.local.home
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Marco Elver <elver@google.com>
Link: https://lore.kernel.org/r/20241108113455.2924361-2-elver@google.com
Signed-off-by: Kees Cook <kees@kernel.org>
This commit is contained in:
Marco Elver 2024-11-08 12:34:25 +01:00 committed by Kees Cook
parent c38904ebb7
commit e3f6a42272
1 changed files with 2 additions and 5 deletions
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7
include/trace/events/task.h
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@ -38,22 +38,19 @@ TRACE_EVENT(task_rename,
TP_ARGS(task, comm), TP_ARGS(task, comm),
TP_STRUCT__entry( TP_STRUCT__entry(
__field( pid_t, pid)
__array( char, oldcomm, TASK_COMM_LEN) __array( char, oldcomm, TASK_COMM_LEN)
__array( char, newcomm, TASK_COMM_LEN) __array( char, newcomm, TASK_COMM_LEN)
__field( short, oom_score_adj) __field( short, oom_score_adj)
), ),
TP_fast_assign( TP_fast_assign(
__entry->pid = task->pid;
memcpy(entry->oldcomm, task->comm, TASK_COMM_LEN); memcpy(entry->oldcomm, task->comm, TASK_COMM_LEN);
strscpy(entry->newcomm, comm, TASK_COMM_LEN); strscpy(entry->newcomm, comm, TASK_COMM_LEN);
__entry->oom_score_adj = task->signal->oom_score_adj; __entry->oom_score_adj = task->signal->oom_score_adj;
), ),
TP_printk("pid=%d oldcomm=%s newcomm=%s oom_score_adj=%hd", TP_printk("oldcomm=%s newcomm=%s oom_score_adj=%hd",
__entry->pid, __entry->oldcomm, __entry->oldcomm, __entry->newcomm, __entry->oom_score_adj)
__entry->newcomm, __entry->oom_score_adj)
); );
/** /**