Ensure pool time is longer than block_ns, so there is a margin to
avoid vCPU get into block state unnecessorily.
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@xxxxxxxxxx>
---
drivers/cpuidle/governors/haltpoll.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/cpuidle/governors/haltpoll.c b/drivers/cpuidle/governors/haltpoll.c
index 4b00d7a..59eadaf 100644
--- a/drivers/cpuidle/governors/haltpoll.c
+++ b/drivers/cpuidle/governors/haltpoll.c
@@ -81,9 +81,9 @@ static void adjust_poll_limit(struct cpuidle_device *dev, unsigned int block_us)
u64 block_ns = block_us*NSEC_PER_USEC;
/* Grow cpu_halt_poll_us if
- * cpu_halt_poll_us < block_ns < guest_halt_poll_us
+ * cpu_halt_poll_us <= block_ns < guest_halt_poll_us
*/
- if (block_ns > dev->poll_limit_ns && block_ns <= guest_halt_poll_ns) {
+ if (block_ns >= dev->poll_limit_ns && block_ns < guest_halt_poll_ns) {
val = dev->poll_limit_ns * guest_halt_poll_grow;
/*
@@ -101,7 +101,7 @@ static void adjust_poll_limit(struct cpuidle_device *dev, unsigned int block_us)
val = guest_halt_poll_ns;
dev->poll_limit_ns = val;
- } else if (block_ns > guest_halt_poll_ns &&
+ } else if (block_ns >= guest_halt_poll_ns &&
guest_halt_poll_allow_shrink) {
unsigned int shrink = guest_halt_poll_shrink;
--
1.8.3.1
