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[GIT pull] timer fixes for 4.12

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  [GIT pull] timer fixes for 4.12 Thomas Gleixner <tglx@linutronix.de> - 2017-05-27 10:50 +0200

#1651818 — [GIT pull] timer fixes for 4.12

Linus,

please pull the latest timers-urgent-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers-urgent-for-linus

Silence dmesg spam by making the posix cpu timer printks depend on
print_fatal_signals.

Thanks,

	tglx

------------------>
Thomas Gleixner (1):
      posix-timers: Make signal printks conditional


 kernel/time/posix-cpu-timers.c | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
index 1370f067fb51..d2a1e6dd0291 100644
--- a/kernel/time/posix-cpu-timers.c
+++ b/kernel/time/posix-cpu-timers.c
@@ -825,8 +825,10 @@ static void check_thread_timers(struct task_struct *tsk,
 			 * At the hard limit, we just die.
 			 * No need to calculate anything else now.
 			 */
-			pr_info("CPU Watchdog Timeout (hard): %s[%d]\n",
-				tsk->comm, task_pid_nr(tsk));
+			if (print_fatal_signals) {
+				pr_info("CPU Watchdog Timeout (hard): %s[%d]\n",
+					tsk->comm, task_pid_nr(tsk));
+			}
 			__group_send_sig_info(SIGKILL, SEND_SIG_PRIV, tsk);
 			return;
 		}
@@ -838,8 +840,10 @@ static void check_thread_timers(struct task_struct *tsk,
 				soft += USEC_PER_SEC;
 				sig->rlim[RLIMIT_RTTIME].rlim_cur = soft;
 			}
-			pr_info("RT Watchdog Timeout (soft): %s[%d]\n",
-				tsk->comm, task_pid_nr(tsk));
+			if (print_fatal_signals) {
+				pr_info("RT Watchdog Timeout (soft): %s[%d]\n",
+					tsk->comm, task_pid_nr(tsk));
+			}
 			__group_send_sig_info(SIGXCPU, SEND_SIG_PRIV, tsk);
 		}
 	}
@@ -936,8 +940,10 @@ static void check_process_timers(struct task_struct *tsk,
 			 * At the hard limit, we just die.
 			 * No need to calculate anything else now.
 			 */
-			pr_info("RT Watchdog Timeout (hard): %s[%d]\n",
-				tsk->comm, task_pid_nr(tsk));
+			if (print_fatal_signals) {
+				pr_info("RT Watchdog Timeout (hard): %s[%d]\n",
+					tsk->comm, task_pid_nr(tsk));
+			}
 			__group_send_sig_info(SIGKILL, SEND_SIG_PRIV, tsk);
 			return;
 		}
@@ -945,8 +951,10 @@ static void check_process_timers(struct task_struct *tsk,
 			/*
 			 * At the soft limit, send a SIGXCPU every second.
 			 */
-			pr_info("CPU Watchdog Timeout (soft): %s[%d]\n",
-				tsk->comm, task_pid_nr(tsk));
+			if (print_fatal_signals) {
+				pr_info("CPU Watchdog Timeout (soft): %s[%d]\n",
+					tsk->comm, task_pid_nr(tsk));
+			}
 			__group_send_sig_info(SIGXCPU, SEND_SIG_PRIV, tsk);
 			if (soft < hard) {
 				soft++;

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