[PATCH 265/961] zram/xvmalloc: create CONFIG_ZRAM_DEBUG for debug code

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Robert Jennings <rcj@xxxxxxxxxxxxxxxxxx>

Add a debug config flag to enable debug printk output and future
debug code.

Signed-off-by: Robert Jennings <rcj@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Pekka Enberg <penberg@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
 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 d3982e6f..2f3b484 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 9cbe04a..4f6cb8d 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 3c8ecab..7d11c59 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>
-- 
1.7.4.1

_______________________________________________
devel mailing list
devel@xxxxxxxxxxxxxxxxxxxxxx
http://driverdev.linuxdriverproject.org/mailman/listinfo/devel


[Index of Archives]     [Linux Driver Backports]     [DMA Engine]     [Linux GPIO]     [Linux SPI]     [Video for Linux]     [Linux USB Devel]     [Linux Coverity]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]
  Powered by Linux