[RFC PATCH] Various fixes for zcache.

[Konrad Rzeszutek Wilk]

Hey Greg, and Dan,

I posted these patches some time ago, and I think Dan Ack-ed them but they
are based on the patches which enables frontswap to have backends as modules.

So PLEASE just consider them RFC and _NOT_ apply them - as they won't cleanly
apply. They are based on this posting:

https://lkml.org/lkml/2013/2/1/542

This patchset is just cleaning the zcache driver a bit. I was hoping that the
end goal would be less code but with the header file ('debug.h') that did not
happend. But I can axe it some more - on the next iteration.

Konrad Rzeszutek Wilk (16):
      zcache: s/int/bool/ on the various options.
      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/debug: Use an array to initialize/use debugfs attributes.
      zcache: Move the last of the debugfs counters out
      zcache: Module license is defined twice.
      zcache/debug: Coalesce all debug under CONFIG_ZCACHE_DEBUG
      zcache/zbud: Fix compiler warnings.
      zcache/zbud: Add incremental accessory counters
      zcache/zbud: Provide the accessory functions for counter decrease.
      ramster: Fix compile warnings due to usage of debugfs_create_size_t
      zcache/zbud: Fix __init mismatch

 drivers/staging/zcache/Kconfig           |   8 +
 drivers/staging/zcache/Makefile          |   3 +-
 drivers/staging/zcache/debug.c           |  66 ++++++
 drivers/staging/zcache/debug.h           | 225 ++++++++++++++++++
 drivers/staging/zcache/ramster/ramster.c |  34 +--
 drivers/staging/zcache/zbud.c            | 130 +++++++----
 drivers/staging/zcache/zcache-main.c     | 382 +++++++------------------------
 7 files changed, 487 insertions(+), 361 deletions(-)