Staging: Rename ramzswap files to zram

Related changes:
 - Modify revelant Kconfig and Makefile accordingly.
 - Change include filenames in code.
 - Remove dependency on CONFIG_SWAP in Kconfig as zram usage
is no longer limited to swap disks.

Signed-off-by: Nitin Gupta <ngupta@vflare.org>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/Kconfig

@@ -119,7 +119,7 @@ source "drivers/staging/sep/Kconfig"
 
 source "drivers/staging/iio/Kconfig"
 
-source "drivers/staging/ramzswap/Kconfig"
+source "drivers/staging/zram/Kconfig"
 
 source "drivers/staging/wlags49_h2/Kconfig"
 

drivers/staging/Makefile

@@ -40,7 +40,7 @@ obj-$(CONFIG_RAR_REGISTER)	+= rar_register/
 obj-$(CONFIG_MRST_RAR_HANDLER)	+= memrar/
 obj-$(CONFIG_DX_SEP)		+= sep/
 obj-$(CONFIG_IIO)		+= iio/
-obj-$(CONFIG_RAMZSWAP)		+= ramzswap/
+obj-$(CONFIG_ZRAM)		+= zram/
 obj-$(CONFIG_WLAGS49_H2)	+= wlags49_h2/
 obj-$(CONFIG_WLAGS49_H25)	+= wlags49_h25/
 obj-$(CONFIG_BATMAN_ADV)	+= batman-adv/

drivers/staging/ramzswap/Kconfig

@@ -1,21 +0,0 @@
-config RAMZSWAP
-	tristate "Compressed in-memory swap device (ramzswap)"
-	depends on SWAP
-	select LZO_COMPRESS
-	select LZO_DECOMPRESS
-	default n
-	help
-	  Creates virtual block devices which can (only) be used as swap
-	  disks. Pages swapped to these disks are compressed and stored in
-	  memory itself.
-
-	  See ramzswap.txt for more information.
-	  Project home: http://compcache.googlecode.com/
-
-config RAMZSWAP_STATS
-	bool "Enable ramzswap stats"
-	depends on RAMZSWAP
-	default y
-	help
-	  Enable statistics collection for ramzswap. This adds only a minimal
-	  overhead. In unsure, say Y.

drivers/staging/ramzswap/Makefile

@@ -1,3 +0,0 @@
-ramzswap-objs	:=	ramzswap_drv.o xvmalloc.o
-
-obj-$(CONFIG_RAMZSWAP)	+=	ramzswap.o

drivers/staging/zram/Kconfig

@@ -0,0 +1,28 @@
+config ZRAM
+	tristate "Compressed RAM block device support"
+	select LZO_COMPRESS
+	select LZO_DECOMPRESS
+	default n
+	help
+	  Creates virtual block devices called /dev/zramX (X = 0, 1, ...).
+	  Pages written to these disks are compressed and stored in memory
+	  itself. These disks allow very fast I/O and compression provides
+	  good amounts of memory savings.
+
+	  It has several use cases, for example: /tmp storage, use as swap
+	  disks and maybe many more.
+
+	  See zram.txt for more information.
+	  Project home: http://compcache.googlecode.com/
+
+config ZRAM_STATS
+	bool "Enable statistics for compressed RAM disks"
+	depends on ZRAM
+	default y
+	help
+	  Enable statistics collection for compressed RAM devices. Statistics
+	  are exported through ioctl interface, so you have to use zramconfig
+	  program to get them. This adds only a minimal overhead.
+
+	  If unsure, say Y.
+

drivers/staging/zram/Makefile

@@ -0,0 +1,3 @@
+zram-objs	:=	zram_drv.o xvmalloc.o
+
+obj-$(CONFIG_ZRAM)	+=	zram.o

drivers/staging/ramzswap/ramzswap_drv.c → drivers/staging/zram/zram_drv.c

@@ -30,7 +30,7 @@
 #include <linux/swapops.h>
 #include <linux/vmalloc.h>
 
-#include "ramzswap_drv.h"
+#include "zram_drv.h"
 
 /* Globals */
 static int ramzswap_major;

drivers/staging/ramzswap/ramzswap_drv.h → drivers/staging/zram/zram_drv.h

@@ -18,7 +18,7 @@
 #include <linux/spinlock.h>
 #include <linux/mutex.h>
 
-#include "ramzswap_ioctl.h"
+#include "zram_ioctl.h"
 #include "xvmalloc.h"
 
 /*