Add CONFIG_RAMSTER_DEBUG Kconfig entry.
Acked-by: Dan Magenheimer <dan.magenhei...@oracle.com>
Signed-off-by: Wanpeng Li <liw...@linux.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 7b2deaa..7f80dd4 100644
--- a/drivers/staging/zcache/ramster/debug.h
+++ b/drivers/staging/zcache/ramster/debug.h
@@ -1,4 +1,4 @@
-#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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