linux-kernel - [PATCH PART3 v4 4/6] staging: ramster/debug: Add CONFIG_RAMSTER

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Message-Id: <1365858092-21920-5-git-send-email-liwanp@linux.vnet.ibm.com>
Date:	Sat, 13 Apr 2013 21:01:30 +0800
From:	Wanpeng Li <liwanp@...ux.vnet.ibm.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Dan Magenheimer <dan.magenheimer@...cle.com>,
	Seth Jennings <sjenning@...ux.vnet.ibm.com>,
	Konrad Rzeszutek Wilk <konrad@...nok.org>,
	Minchan Kim <minchan@...nel.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Bob Liu <bob.liu@...cle.com>,
	Wanpeng Li <liwanp@...ux.vnet.ibm.com>
Subject: [PATCH PART3 v4 4/6] staging: ramster/debug: Add CONFIG_RAMSTER_DEBUG Kconfig entry 

Add CONFIG_RAMSTER_DEBUG Kconfig entry.

Acked-by: Dan Magenheimer <dan.magenheimer@...cle.com>
Signed-off-by: Wanpeng Li <liwanp@...ux.vnet.ibm.com>
---
 drivers/staging/zcache/Kconfig         |    8 ++++++++
 drivers/staging/zcache/Makefile        |    2 +-
 drivers/staging/zcache/ramster/debug.h |    2 +-
 3 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/zcache/Kconfig b/drivers/staging/zcache/Kconfig
index c3b8a10..05e87a1 100644
--- a/drivers/staging/zcache/Kconfig
+++ b/drivers/staging/zcache/Kconfig
@@ -33,6 +33,14 @@ config RAMSTER
 	  zcache2, compresses swap pages into local RAM, but then remotifies
 	  the compressed pages to another node in the RAMster cluster.
 
+config RAMSTER_DEBUG
+        bool "Enable ramster debug statistics"
+        depends on DEBUG_FS && RAMSTER
+        default n
+        help
+          This is used to provide an debugfs directory with counters of
+          how ramster is doing. You probably want to set this to 'N'.
+
 # Depends on not-yet-upstreamed mm patches to export end_swap_bio_write and
 # __add_to_swap_cache, and implement __swap_writepage (which is swap_writepage
 # without the frontswap call. When these are in-tree, the dependency on
diff --git a/drivers/staging/zcache/Makefile b/drivers/staging/zcache/Makefile
index 4956fa0..845a5c2 100644
--- a/drivers/staging/zcache/Makefile
+++ b/drivers/staging/zcache/Makefile
@@ -1,6 +1,6 @@
 zcache-y	:=		zcache-main.o tmem.o zbud.o
 zcache-$(CONFIG_ZCACHE_DEBUG) += debug.o
-zcache-$(CONFIG_RAMSTER) += ramster/debug.o
+zcache-$(CONFIG_RAMSTER_DEBUG) += ramster/debug.o
 zcache-$(CONFIG_RAMSTER)	+=	ramster/ramster.o ramster/r2net.o
 zcache-$(CONFIG_RAMSTER)	+=	ramster/nodemanager.o ramster/tcp.o
 zcache-$(CONFIG_RAMSTER)	+=	ramster/heartbeat.o ramster/masklog.o
diff --git a/drivers/staging/zcache/ramster/debug.h b/drivers/staging/zcache/ramster/debug.h
index 4428c79..5ffab50 100644
--- a/drivers/staging/zcache/ramster/debug.h
+++ b/drivers/staging/zcache/ramster/debug.h
@@ -1,6 +1,6 @@
 #include <linux/bug.h>
 
-#ifdef CONFIG_RAMSTER
+#ifdef CONFIG_RAMSTER_DEBUG
 
 extern long ramster_flnodes;
 static atomic_t ramster_flnodes_atomic = ATOMIC_INIT(0);
-- 
1.7.10.4

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