linux-kernel - [PATCH v1] hv_balloon: disable warning when floor reached

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Message-Id: <20201008071216.16554-1-olaf@aepfle.de>
Date:   Thu,  8 Oct 2020 09:12:15 +0200
From:   Olaf Hering <olaf@...fle.de>
To:     linux-hyperv@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Olaf Hering <olaf@...fle.de>,
        "K. Y. Srinivasan" <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Wei Liu <wei.liu@...nel.org>
Subject: [PATCH v1] hv_balloon: disable warning when floor reached

It is not an error if a the host requests to balloon down, but the VM
refuses to do so. Without this change a warning is logged in dmesg
every five minutes.

Fixes commit b3bb97b8a49f3

Signed-off-by: Olaf Hering <olaf@...fle.de>
---
 drivers/hv/hv_balloon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
index 32e3bc0aa665..0f50295d0214 100644
--- a/drivers/hv/hv_balloon.c
+++ b/drivers/hv/hv_balloon.c
@@ -1275,7 +1275,7 @@ static void balloon_up(struct work_struct *dummy)
 
 	/* Refuse to balloon below the floor. */
 	if (avail_pages < num_pages || avail_pages - num_pages < floor) {
-		pr_warn("Balloon request will be partially fulfilled. %s\n",
+		pr_info("Balloon request will be partially fulfilled. %s\n",
 			avail_pages < num_pages ? "Not enough memory." :
 			"Balloon floor reached.");