From 4ff34ad3d39377d9f6953f3606ccf611ce636767 Mon Sep 17 00:00:00 2001 From: Uros Bizjak Date: Tue, 28 Feb 2023 17:14:26 +0100 Subject: sched/core: Use do-while instead of for loop in set_nr_if_polling() Use equivalent do-while loop instead of infinite for loop. There are no asm code changes. Signed-off-by: Uros Bizjak Signed-off-by: Ingo Molnar Link: https://lore.kernel.org/r/20230228161426.4508-1-ubizjak@gmail.com --- kernel/sched/core.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'kernel/sched/core.c') diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 76662d809183..f39482d6a6e6 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -919,14 +919,13 @@ static bool set_nr_if_polling(struct task_struct *p) struct thread_info *ti = task_thread_info(p); typeof(ti->flags) val = READ_ONCE(ti->flags); - for (;;) { + do { if (!(val & _TIF_POLLING_NRFLAG)) return false; if (val & _TIF_NEED_RESCHED) return true; - if (try_cmpxchg(&ti->flags, &val, val | _TIF_NEED_RESCHED)) - break; - } + } while (!try_cmpxchg(&ti->flags, &val, val | _TIF_NEED_RESCHED)); + return true; } -- cgit v1.2.3