linux-kernel - [patch 06/44] posix-cpu-timers: Remove tsk argument from run_posix_cpu

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Date:   Mon, 19 Aug 2019 16:31:47 +0200
From:   Thomas Gleixner <tglx@...utronix.de>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     Oleg Nesterov <oleg@...hat.com>, Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        John Stultz <john.stultz@...aro.org>,
        Frederic Weisbecker <fweisbec@...il.com>,
        Anna-Maria Behnsen <anna-maria@...utronix.de>
Subject: [patch 06/44] posix-cpu-timers: Remove tsk argument from
 run_posix_cpu_timers()

It's always current. Don't give people wrong ideas.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 include/linux/posix-timers.h   |    2 +-
 kernel/time/posix-cpu-timers.c |    5 +++--
 kernel/time/timer.c            |    2 +-
 3 files changed, 5 insertions(+), 4 deletions(-)

--- a/include/linux/posix-timers.h
+++ b/include/linux/posix-timers.h
@@ -118,7 +118,7 @@ struct k_itimer {
 	struct rcu_head		rcu;
 };
 
-void run_posix_cpu_timers(struct task_struct *task);
+void run_posix_cpu_timers(void);
 void posix_cpu_timers_exit(struct task_struct *task);
 void posix_cpu_timers_exit_group(struct task_struct *task);
 void set_process_cpu_timer(struct task_struct *task, unsigned int clock_idx,
--- a/kernel/time/posix-cpu-timers.c
+++ b/kernel/time/posix-cpu-timers.c
@@ -1137,11 +1137,12 @@ static inline int fastpath_timer_check(s
  * already updated our counts.  We need to check if any timers fire now.
  * Interrupts are disabled.
  */
-void run_posix_cpu_timers(struct task_struct *tsk)
+void run_posix_cpu_timers(void)
 {
-	LIST_HEAD(firing);
+	struct task_struct *tsk = current;
 	struct k_itimer *timer, *next;
 	unsigned long flags;
+	LIST_HEAD(firing);
 
 	lockdep_assert_irqs_disabled();
 
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -1728,7 +1728,7 @@ void update_process_times(int user_tick)
 #endif
 	scheduler_tick();
 	if (IS_ENABLED(CONFIG_POSIX_TIMERS))
-		run_posix_cpu_timers(p);
+		run_posix_cpu_timers();
 }
 
 /**