From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 25 Apr 2023 18:49:08 +0000 (+0200)
Subject: posix-timers: Remove pointless irqsafe from hash_lock
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=11fbe6cd41210c7b5173257158a22e11e225622d;p=linux.git

posix-timers: Remove pointless irqsafe from hash_lock

All usage of hash_lock is in thread context. No point in using
spin_lock_irqsave()/irqrestore() for a single usage site.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230425183313.249063953@linutronix.de
---

diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c
index c1b77c597f5fe..ed7d260f51efa 100644
--- a/kernel/time/posix-timers.c
+++ b/kernel/time/posix-timers.c
@@ -471,10 +471,9 @@ static void k_itimer_rcu_free(struct rcu_head *head)
 static void release_posix_timer(struct k_itimer *tmr, int it_id_set)
 {
 	if (it_id_set) {
-		unsigned long flags;
-		spin_lock_irqsave(&hash_lock, flags);
+		spin_lock(&hash_lock, flags);
 		hlist_del_rcu(&tmr->t_hash);
-		spin_unlock_irqrestore(&hash_lock, flags);
+		spin_unlock(&hash_lock, flags);
 	}
 	put_pid(tmr->it_pid);
 	sigqueue_free(tmr->sigq);