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Subject[PATCH 4/7] [v2] zram/xvmalloc: create CONFIG_ZRAM_DEBUG for debug code
Add a debug config flag to enable debug printk output and future
debug code.

Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com>
---
drivers/staging/zram/Kconfig | 8 ++++++++
drivers/staging/zram/xvmalloc.c | 4 ++++
drivers/staging/zram/zram_drv.c | 4 ++++
3 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/drivers/staging/zram/Kconfig b/drivers/staging/zram/Kconfig
index da079f8..d957747 100644
--- a/drivers/staging/zram/Kconfig
+++ b/drivers/staging/zram/Kconfig
@@ -15,3 +15,11 @@ config ZRAM

See zram.txt for more information.
Project home: http://compcache.googlecode.com/
+
+config ZRAM_DEBUG
+ bool "Compressed RAM block device debug support"
+ depends on ZRAM
+ default n
+ help
+ This option adds additional debugging code to the compressed
+ RAM block device driver.
diff --git a/drivers/staging/zram/xvmalloc.c b/drivers/staging/zram/xvmalloc.c
index 149138a..0560e9d 100644
--- a/drivers/staging/zram/xvmalloc.c
+++ b/drivers/staging/zram/xvmalloc.c
@@ -10,6 +10,10 @@
* Released under the terms of GNU General Public License Version 2.0
*/

+#ifdef CONFIG_ZRAM_DEBUG
+#define DEBUG
+#endif
+
#include <linux/bitops.h>
#include <linux/errno.h>
#include <linux/highmem.h>
diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c
index d85d034..c67060c 100644
--- a/drivers/staging/zram/zram_drv.c
+++ b/drivers/staging/zram/zram_drv.c
@@ -15,6 +15,10 @@
#define KMSG_COMPONENT "zram"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt

+#ifdef CONFIG_ZRAM_DEBUG
+#define DEBUG
+#endif
+
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/bio.h>
--
1.7.0.4


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