linux-kernel - Re: [PATCH 06/10] percpu: modify base

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Date:   Wed, 19 Jul 2017 14:20:11 +0000
From:   Josef Bacik <josef@...icpanda.com>
To:     Matthew Wilcox <willy@...radead.org>
Cc:     Josef Bacik <josef@...icpanda.com>, Dennis Zhou <dennisz@...com>,
        Tejun Heo <tj@...nel.org>, Christoph Lameter <cl@...ux.com>,
        kernel-team@...com, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, Dennis Zhou <dennisszhou@...il.com>
Subject: Re: [PATCH 06/10] percpu: modify base_addr to be region specific

On Tue, Jul 18, 2017 at 12:36:27PM -0700, Matthew Wilcox wrote:
> On Tue, Jul 18, 2017 at 03:26:02PM -0400, Josef Bacik wrote:
> > On Sat, Jul 15, 2017 at 10:23:11PM -0400, Dennis Zhou wrote:
> > > +	map_size_bytes = (ai->reserved_size ?: ai->dyn_size) +
> > > +			 pcpu_reserved_offset;
> > 
> > This confused me for a second, better to be explicit with
> > 
> > (ai->reserved_size ? 0 : ai->dyn_size) + pcpu_reserved_offset;
> 
> You're still confused ;-)  What Dennis wrote is equivalent to:
> 
> (ai->reserved_size ? ai->reserved_size : ai->dyn_size) + pcpu_reserved_offset;

Lol jesus, made my point even harder with me being an idiot.  Thanks,

Josef