diff options
| author | Uros Bizjak <ubizjak@gmail.com> | 2023-02-28 17:14:26 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2023-09-15 17:18:02 +0200 |
| commit | 4ff34ad3d39377d9f6953f3606ccf611ce636767 (patch) | |
| tree | 4e51b4bf94ab8df48401fd24ef782e225ac6b0a1 /kernel/sched/core.c | |
| parent | c0490bc9bb62d9376f3dd4ec28e03ca0fef97152 (diff) | |
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 <ubizjak@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230228161426.4508-1-ubizjak@gmail.com
Diffstat (limited to 'kernel/sched/core.c')
| -rw-r--r-- | kernel/sched/core.c | 7 |
1 files changed, 3 insertions, 4 deletions
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; } |