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authorWanpeng Li <liwanp@linux.vnet.ibm.com>2013-04-13 21:01:30 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-04-13 06:27:09 -0700
commit2a6aba8585c0f56d24daf53bfff29c91bcf0db8a (patch)
tree5215dd4fdce7785ced60de38117df5d9ee2ee587
parentf7d751ff1d866faf723c5ed4d9a7815c37bc07cd (diff)
staging: ramster/debug: Add CONFIG_RAMSTER_DEBUG Kconfig entry
Add CONFIG_RAMSTER_DEBUG Kconfig entry. Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/staging/zcache/Kconfig8
-rw-r--r--drivers/staging/zcache/Makefile2
-rw-r--r--drivers/staging/zcache/ramster/debug.h2
3 files changed, 10 insertions, 2 deletions
diff --git a/drivers/staging/zcache/Kconfig b/drivers/staging/zcache/Kconfig
index c3b8a10e170f..05e87a1e5d93 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 4956fa025a01..845a5c2721b5 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 4428c79e67f3..5ffab50807d8 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);