linux-kernel - Re: [PATCH 11/11] zcache/zbud: Add incremental accessory counters

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Date:	Tue, 5 Mar 2013 09:02:54 -0500
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	Greg KH <gregkh@...uxfoundation.org>
Cc:	linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
	dan.magenheimer@...cle.com
Subject: Re: [PATCH 11/11] zcache/zbud: Add incremental accessory counters

On Tue, Mar 05, 2013 at 04:44:53PM +0800, Greg KH wrote:
> On Mon, Mar 04, 2013 at 01:18:21PM -0500, Konrad Rzeszutek Wilk wrote:
> > that are going to be used for debug fs entries.
> 
> what debugfs entries?
> 
> > 
> > Acked-by: Dan Magenheimer <dan.magenheimer@...cle.com>
> > Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
> > ---
> >  drivers/staging/zcache/zbud.c | 58 +++++++++++++++++++++++++++++--------------
> >  1 file changed, 39 insertions(+), 19 deletions(-)
> > 
> > diff --git a/drivers/staging/zcache/zbud.c b/drivers/staging/zcache/zbud.c
> > index fdff5c6..0feb856 100644
> > --- a/drivers/staging/zcache/zbud.c
> > +++ b/drivers/staging/zcache/zbud.c
> > @@ -301,6 +301,26 @@ static ssize_t zbud_eph_unbuddied_count;
> >  static ssize_t zbud_pers_unbuddied_count;
> >  static ssize_t zbud_eph_zombie_count;
> >  static ssize_t zbud_pers_zombie_count;
> > +static inline void inc_zbud_eph_pageframes(void) { zbud_eph_pageframes++; };
> > +static inline void inc_zbud_pers_pageframes(void) { zbud_pers_pageframes++; };
> > +static inline void inc_zbud_eph_zpages(void) { zbud_eph_zpages++; };
> 
> <snip>
> 
> That's just insane, why are you doing this?

To move them out to their own file, such as debug.h. And if the
user does not want the DebugFS entries for zbud_eph_p* then these:

inc_zbud_eph_pageframes(void) ..

will now be defined as:
static inline void inc_zbud_...(void) { };

and essentially are NOPs.

> 
> As you aren't using this yet, I'm not going to apply this patch, sorry.

OK. Will finish off that part of the cleanup and repost it for the zbud.

> 
> greg k-h
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