[PATCH 4/5] Drivers: hv: balloon: Initialize last_post_time on startup

From: kys
Date: Sun Aug 06 2017 - 16:14:51 EST


From: Alex Ng <alexng@xxxxxxxxxxxxxxxxxxxxxx>

When left uninitialized, this sometimes fails the following check in
post_status():

if (!time_after(now, (last_post_time + HZ))) {
return;
}

This causes unnecessary delays in reporting memory pressure to host after
booting up.

Signed-off-by: Alex Ng <alexng@xxxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
---
drivers/hv/hv_balloon.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
index 7cec482..db0e665 100644
--- a/drivers/hv/hv_balloon.c
+++ b/drivers/hv/hv_balloon.c
@@ -1655,6 +1655,7 @@ static int balloon_probe(struct hv_device *dev,
}

dm_device.state = DM_INITIALIZED;
+ last_post_time = jiffies;

return 0;

--
1.7.1