diff options
| author | Steven Rostedt (Google) <rostedt@goodmis.org> | 2024-06-05 14:03:37 -0400 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2024-06-06 15:21:25 -0400 |
| commit | da73f6d49007d1b6889d5cb3320dc9f90cf3ccbe (patch) | |
| tree | 402018b5c56109a61efaf421d70bf22f280f5a6c /kernel/trace | |
| parent | 07bbe0833ed62f48785dffa8e429f35c1d906415 (diff) | |
ftrace: Add comments to ftrace_hash_rec_disable/enable()
Add comments to describe what the functions ftrace_hash_rec_disable() and
ftrace_hash_rec_enable() do. Also change the passing of the "inc" variable
to __ftrace_hash_rec_update() to a boolean value as that is what it is
supposed to take.
Link: https://lore.kernel.org/linux-trace-kernel/20240605180408.857333430@goodmis.org
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/ftrace.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index abcdffa4d572..4140d0ce25f1 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -1863,14 +1863,24 @@ static bool __ftrace_hash_rec_update(struct ftrace_ops *ops, return update; } +/* + * This is called when an ops is removed from tracing. It will decrement + * the counters of the dyn_ftrace records for all the functions that + * the @ops attached to. + */ static bool ftrace_hash_rec_disable(struct ftrace_ops *ops) { - return __ftrace_hash_rec_update(ops, 0); + return __ftrace_hash_rec_update(ops, false); } +/* + * This is called when an ops is added to tracing. It will increment + * the counters of the dyn_ftrace records for all the functions that + * the @ops attached to. + */ static bool ftrace_hash_rec_enable(struct ftrace_ops *ops) { - return __ftrace_hash_rec_update(ops, 1); + return __ftrace_hash_rec_update(ops, true); } static void ftrace_hash_rec_update_modify(struct ftrace_ops *ops, int inc) |