[tip: sched/hrtick] hrtimer: Simplify run_hrtimer_queues()

[tip-bot2 for Thomas Gleixner]

The following commit has been merged into the sched/hrtick branch of tip:

Commit-ID:     a64ad57e41c7e3daadbc2c1bc252d9a90c87222f
Gitweb:        https://git.kernel.org/tip/a64ad57e41c7e3daadbc2c1bc252d9a90c87222f
Author:        Thomas Gleixner <tglx@xxxxxxxxxx>
AuthorDate:    Tue, 24 Feb 2026 17:38:37 +01:00
Committer:     Peter Zijlstra <peterz@xxxxxxxxxxxxx>
CommitterDate: Fri, 27 Feb 2026 16:40:15 +01:00

hrtimer: Simplify run_hrtimer_queues()

Replace the open coded container_of() orgy with a trivial
clock_base_next_timer() helper.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Link: https://patch.msgid.link/20260224163431.532927977@xxxxxxxxxx
---
 kernel/time/hrtimer.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index aa1cb4f..b0e7e29 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -1933,6 +1933,13 @@ static void __run_hrtimer(struct hrtimer_cpu_base *cpu_base, struct hrtimer_cloc
 	base->running = NULL;
 }
 
+static __always_inline struct hrtimer *clock_base_next_timer_safe(struct hrtimer_clock_base *base)
+{
+	struct timerqueue_node *next = timerqueue_getnext(&base->active);
+
+	return next ? container_of(next, struct hrtimer, node) : NULL;
+}
+
 static void __hrtimer_run_queues(struct hrtimer_cpu_base *cpu_base, ktime_t now,
 				 unsigned long flags, unsigned int active_mask)
 {
@@ -1940,16 +1947,10 @@ static void __hrtimer_run_queues(struct hrtimer_cpu_base *cpu_base, ktime_t now,
 	struct hrtimer_clock_base *base;
 
 	for_each_active_base(base, cpu_base, active) {
-		struct timerqueue_node *node;
-		ktime_t basenow;
-
-		basenow = ktime_add(now, base->offset);
-
-		while ((node = timerqueue_getnext(&base->active))) {
-			struct hrtimer *timer;
-
-			timer = container_of(node, struct hrtimer, node);
+		ktime_t basenow = ktime_add(now, base->offset);
+		struct hrtimer *timer;
 
+		while ((timer = clock_base_next_timer(base))) {
 			/*
 			 * The immediate goal for using the softexpires is
 			 * minimizing wakeups, not running timers at the