diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2024-10-04 14:47:02 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2024-11-05 12:55:37 +0100 |
| commit | 26baa1f1c4bdc34b8d698c1900b407d863ad0e69 (patch) | |
| tree | 410e81cac79d2f31d7734efc4ac79c3a2003a1d8 /kernel/entry/common.c | |
| parent | 0f0d1b8e5010bfe1feeb4d78d137e41946a5370d (diff) | |
sched: Add TIF_NEED_RESCHED_LAZY infrastructure
Add the basic infrastructure to split the TIF_NEED_RESCHED bit in two.
Either bit will cause a resched on return-to-user, but only
TIF_NEED_RESCHED will drive IRQ preemption.
No behavioural change intended.
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://lkml.kernel.org/r/20241007075055.219540785@infradead.org
Diffstat (limited to 'kernel/entry/common.c')
| -rw-r--r-- | kernel/entry/common.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/entry/common.c b/kernel/entry/common.c index 5b6934e23c21..e33691d5adf7 100644 --- a/kernel/entry/common.c +++ b/kernel/entry/common.c @@ -98,7 +98,7 @@ __always_inline unsigned long exit_to_user_mode_loop(struct pt_regs *regs, local_irq_enable_exit_to_user(ti_work); - if (ti_work & _TIF_NEED_RESCHED) + if (ti_work & (_TIF_NEED_RESCHED | _TIF_NEED_RESCHED_LAZY)) schedule(); if (ti_work & _TIF_UPROBE) |