From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: stable-rt@vger.kernel.org
Cc: Clark Williams <williams@redhat.com>
Subject: [PATCH v6.6-RT] kvm: Use the proper mask to check for the LAZY bit.
Date: Fri, 25 Oct 2024 12:26:33 +0200 [thread overview]
Message-ID: <20241025102633.w55fsSjV@linutronix.de> (raw)
To check for the LAZY bit in ti_work, it is needed to use
_TIF_NEED_RESCHED_LAZY which contains the shifted bit (the mask) instead
of TIF_NEED_RESCHED_LAZY which contains the bit number.
This broke while switch from the old PREEMPT_LAZY code to PREEMPT_AUTO.
Use _TIF_NEED_RESCHED_LAZY instead of TIF_NEED_RESCHED_LAZY.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
kernel/entry/kvm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/entry/kvm.c b/kernel/entry/kvm.c
index d952fa5ee8801..5253d3d2d0139 100644
--- a/kernel/entry/kvm.c
+++ b/kernel/entry/kvm.c
@@ -13,7 +13,7 @@ static int xfer_to_guest_mode_work(struct kvm_vcpu *vcpu, unsigned long ti_work)
return -EINTR;
}
- if (ti_work & (_TIF_NEED_RESCHED | TIF_NEED_RESCHED_LAZY))
+ if (ti_work & (_TIF_NEED_RESCHED | _TIF_NEED_RESCHED_LAZY))
schedule();
if (ti_work & _TIF_NOTIFY_RESUME)
--
2.45.2
reply other threads:[~2024-10-25 10:26 UTC|newest]
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