linux-kernel - Re: [PATCH] posix-timers: omit posix_cpu_timers_init_group when CONFIG_POSIX

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Message-ID: <tencent_289DE02620144CF4490D1F9E1EA941243607@qq.com>
Date: Thu, 12 Jun 2025 21:22:30 +0800
From: 1425075683@...com
To: 1425075683@...com
Cc: nico@...xnic.net,
	tglx@...utronix.de,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] posix-timers: omit posix_cpu_timers_init_group when CONFIG_POSIX_TIMERS is disabled

Hi all,

My apologies—I neglected to CC both of you on my last submission. Please find below the same patch, now with the correct CC list.

---
diff --git a/kernel/fork.c b/kernel/fork.c
index 168681fc4b25a9fddcb90ce155c027551455f4ee..9632e863c17b44424fadc40b2445034ec5cd20d6 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1883,6 +1883,7 @@ void __cleanup_sighand(struct sighand_struct *sighand)
 	}
 }

+#ifdef CONFIG_POSIX_TIMERS
 /*
  * Initialize POSIX timer handling for a thread group.
  */
@@ -1894,6 +1895,9 @@ static void posix_cpu_timers_init_group(struct signal_struct *sig)
 	cpu_limit = READ_ONCE(sig->rlim[RLIMIT_CPU].rlim_cur);
 	posix_cputimers_group_init(pct, cpu_limit);
 }
+#else
+static inline void posix_cpu_timers_init_group(struct signal_struct *sig) { }
+#endif
 
 static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
 {

---

Thanks for your understanding!
–-
Liya Huang <1425075683@...com>