[PATCH] fork-comment-fix: remove ambiguous question mark in CLONE_CHILD_CLEARTID comment

[Minu Jin <s9430939@naver.com>]

The current comment "Clear TID on mm_release()?" ends with a question mark,
implying uncertainty about whether the TID is actually cleared in mm_release().

However, the code flow is deterministic.
When a task exits, mm_release() explicitly checks 'tsk->clear_child_tid' and clears.

Since this behavior is unambiguous,
remove the confusing question mark and rephrase the comment to clearly state that TID is cleared in mm_release().

Signed-off-by: Minu Jin <s9430939@naver.com>
---
 kernel/fork.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/fork.c b/kernel/fork.c
index 3da0f08615a9..ed46e12c8060 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2031,7 +2031,7 @@ __latent_entropy struct task_struct *copy_process(
 
 	p->set_child_tid = (clone_flags & CLONE_CHILD_SETTID) ? args->child_tid : NULL;
 	/*
-	 * Clear TID on mm_release()?
+	 * TID is cleared in mm_release() when the task exits
 	 */
 	p->clear_child_tid = (clone_flags & CLONE_CHILD_CLEARTID) ? args->child_tid : NULL;
 
-- 
2.43.0