linux-kernel - Re: [RFC PATCH v5 6/8] drivers: vmware: balloon

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Message-ID: <Y0/WUdUIJ6O7EzQg@kroah.com>
Date:   Wed, 19 Oct 2022 12:49:53 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Alexander Atanasov <alexander.atanasov@...tuozzo.com>
Cc:     Nadav Amit <namit@...are.com>,
        VMware PV-Drivers Reviewers <pv-drivers@...are.com>,
        Arnd Bergmann <arnd@...db.de>, kernel@...nvz.org,
        linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH v5 6/8] drivers: vmware: balloon - report inflated
 memory

On Wed, Oct 19, 2022 at 01:38:13PM +0300, Alexander Atanasov wrote:
> On 19.10.22 13:26, Greg Kroah-Hartman wrote:
> > On Wed, Oct 19, 2022 at 12:56:18PM +0300, Alexander Atanasov wrote:
> > > Update the inflated memory in the mm core on change.
> > 
> > That says what this does, but not why it is needed.
> > 
> > Please expand on this.
> > 
> > Also, is this actually fixing a bug?  Is it a new feature?  Something
> > else?
> 
> The whole series is about adding a new feature - providing access to the
> balloon inflated memory amount - it's in the cover letter. Should I repeat
> it for every driver that implements it?

Each commit needs to justify why it is needed on its own.  You do not
provide the needed information here at all to be able to review and
understand if this commit is even correct or needed.

thanks,

greg k-h