RE: [RFC PATCH] zcache2 cleanups (s/int/bool + debugfs movement).

From: Dan Magenheimer
Date: Tue Nov 06 2012 - 19:03:18 EST


> From: Konrad Rzeszutek Wilk [mailto:konrad.wilk@xxxxxxxxxx]
> Sent: Monday, November 05, 2012 7:37 AM
> To: linux-kernel@xxxxxxxxxxxxxxx; sjenning@xxxxxxxxxxxxxxxxxx; dan.magenheimer@xxxxxxxxxx;
> ngupta@xxxxxxxxxx; minchan@xxxxxxxxxx; rcj@xxxxxxxxxxxxxxxxxx; linux-mm@xxxxxxxxx;
> gregkh@xxxxxxxxxxxxxxxxxxx; devel@xxxxxxxxxxxxxxxxxxxx
> Cc: akpm@xxxxxxxxxxxxxxxxxxxx
> Subject: [RFC PATCH] zcache2 cleanups (s/int/bool + debugfs movement).
>
> Looking at the zcache2 code there were a couple of things that I thought
> would make sense to move out of the code. For one thing it makes it easier
> to read, and for anoter - it can be cleanly compiled out. It also allows
> to have a clean seperation of counters that we _need_ vs the optional ones.
> Which means that in the future we could get rid of the optional ones.
>
> This patchset is based on the patchset that Dan sent out
> (https://lkml.org/lkml/2012/10/31/790). I've stuck
> them (and addressed some review comments) and put them in my branch:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/konrad/mm.git devel/zcache.v3
>
> I am going to repost the module loading some time later this week - Bob Liu had
> some comments that I want to address.
>
> So back to this patchset - it fixes some outstanding compile warnings, cleans
> up some of the code, and rips out the debug counters out of zcache-main.c
> and sticks them in a debug.c file.
>
> I was hoping it would end up with less code, but sadly it ended up with
> a bit more due to the empty non-debug functions.
>
> drivers/staging/ramster/Kconfig | 8 +
> drivers/staging/ramster/Makefile | 1 +
> drivers/staging/ramster/debug.c | 66 ++++++
> drivers/staging/ramster/debug.h | 225 +++++++++++++++++++
> drivers/staging/ramster/zcache-main.c | 384 ++++++++-------------------------
> 5 files changed, 389 insertions(+), 295 deletions(-)
>
> Konrad Rzeszutek Wilk (11):
> zcache2: s/int/bool/ on the various options.
> zcache: Module license is defined twice.
> zcache: Provide accessory functions for counter increase
> zcache: Provide accessory functions for counter decrease.
> zcache: The last of the atomic reads has now an accessory function.
> zcache: Fix compile warnings due to usage of debugfs_create_size_t
> zcache: Make the debug code use pr_debug
> zcache: Move debugfs code out of zcache-main.c file.
> zcache: Use an array to initialize/use debugfs attributes.
> zcache: Move the last of the debugfs counters out
> zcache: Coalesce all debug under CONFIG_ZCACHE2_DEBUG

FWIW, for all these patches, please add my:

Reviewed-by: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>
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