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

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Message-ID: <MW2PR2101MB1052BA9AB5DB8C11D7F9CE33D71E0@MW2PR2101MB1052.namprd21.prod.outlook.com>
Date:   Mon, 19 Oct 2020 03:02:22 +0000
From:   Michael Kelley <mikelley@...rosoft.com>
To:     Olaf Hering <olaf@...fle.de>,
        "linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     KY Srinivasan <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Wei Liu <wei.liu@...nel.org>
Subject: RE: [PATCH v1] hv_balloon: disable warning when floor reached

From: Olaf Hering <olaf@...fle.de> Sent: Thursday, October 8, 2020 12:12 AM
> 
> It is not an error if a the host requests to balloon down, but the VM

Spurious word "a"

> refuses to do so. Without this change a warning is logged in dmesg
> every five minutes.
> 
> Fixes commit b3bb97b8a49f3

This "Fixes" line isn't formatted correctly.  Should be:

Fixes:  b3bb97b8a49f3 ("Drivers: hv: balloon: Add logging for dynamic memory operations")

> 
> 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.");
> 

Above nits notwithstanding,

Reviewed-by: Michael Kelley <mikelley@...rosoft.com>