Merge branch 'akpm' (incoming from Andrew)

Merge third batch of fixes from Andrew Morton:
 "Most of the rest.  I still have two large patchsets against AIO and
  IPC, but they're a bit stuck behind other trees and I'm about to
  vanish for six days.

   - random fixlets
   - inotify
   - more of the MM queue
   - show_stack() cleanups
   - DMI update
   - kthread/workqueue things
   - compat cleanups
   - epoll udpates
   - binfmt updates
   - nilfs2
   - hfs
   - hfsplus
   - ptrace
   - kmod
   - coredump
   - kexec
   - rbtree
   - pids
   - pidns
   - pps
   - semaphore tweaks
   - some w1 patches
   - relay updates
   - core Kconfig changes
   - sysrq tweaks"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (109 commits)
  Documentation/sysrq: fix inconstistent help message of sysrq key
  ethernet/emac/sysrq: fix inconstistent help message of sysrq key
  sparc/sysrq: fix inconstistent help message of sysrq key
  powerpc/xmon/sysrq: fix inconstistent help message of sysrq key
  ARM/etm/sysrq: fix inconstistent help message of sysrq key
  power/sysrq: fix inconstistent help message of sysrq key
  kgdb/sysrq: fix inconstistent help message of sysrq key
  lib/decompress.c: fix initconst
  notifier-error-inject: fix module names in Kconfig
  kernel/sys.c: make prctl(PR_SET_MM) generally available
  UAPI: remove empty Kbuild files
  menuconfig: print more info for symbol without prompts
  init/Kconfig: re-order CONFIG_EXPERT options to fix menuconfig display
  kconfig menu: move Virtualization drivers near other virtualization options
  Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
  relay: use macro PAGE_ALIGN instead of FIX_SIZE
  kernel/relay.c: move FIX_SIZE macro into relay.c
  kernel/relay.c: remove unused function argument actor
  drivers/w1/slaves/w1_ds2760.c: fix the error handling in w1_ds2760_add_slave()
  drivers/w1/slaves/w1_ds2781.c: fix the error handling in w1_ds2781_add_slave()
  ...

32 files changed, 269 insertions, 189 deletions

diff --git a/drivers/Kconfig b/drivers/Kconfig
index 78a956e286e6..8d96238549fa 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -120,6 +120,8 @@ source "drivers/vfio/Kconfig"
 
 source "drivers/vlynq/Kconfig"
 
+source "drivers/virt/Kconfig"
+
 source "drivers/virtio/Kconfig"
 
 source "drivers/hv/Kconfig"
@@ -144,8 +146,6 @@ source "drivers/remoteproc/Kconfig"
 
 source "drivers/rpmsg/Kconfig"
 
-source "drivers/virt/Kconfig"
-
 source "drivers/devfreq/Kconfig"
 
 source "drivers/extcon/Kconfig"
diff --git a/drivers/block/aoe/aoechr.c b/drivers/block/aoe/aoechr.c
index 42e67ad6bd20..ab41be625a53 100644
--- a/drivers/block/aoe/aoechr.c
+++ b/drivers/block/aoe/aoechr.c
@@ -139,13 +139,12 @@ bail:		spin_unlock_irqrestore(&emsgs_lock, flags);
 		return;
 	}
 
-	mp = kmalloc(n, GFP_ATOMIC);
+	mp = kmemdup(msg, n, GFP_ATOMIC);
 	if (mp == NULL) {
 		printk(KERN_ERR "aoe: allocation failure, len=%ld\n", n);
 		goto bail;
 	}
 
-	memcpy(mp, msg, n);
 	em->msg = mp;
 	em->flags |= EMFL_VALID;
 	em->len = n;
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 7fecc784be01..037288e7874d 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -856,6 +856,8 @@ static int __init nbd_init(void)
 		disk->queue->limits.discard_granularity = 512;
 		disk->queue->limits.max_discard_sectors = UINT_MAX;
 		disk->queue->limits.discard_zeroes_data = 0;
+		blk_queue_max_hw_sectors(disk->queue, 65536);
+		disk->queue->limits.max_sectors = 256;
 	}
 
 	if (register_blkdev(NBD_MAJOR, "nbd")) {
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 32a6c5764950..cd9a6211dcad 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1485,6 +1485,7 @@ unsigned int get_random_int(void)
 
 	return ret;
 }
+EXPORT_SYMBOL(get_random_int);
 
 /*
  * randomize_range() returns a start address such that
diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index 4cd392dbf115..b95159b33c39 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -22,6 +22,9 @@ static u16 __initdata dmi_ver;
  */
 static int dmi_initialized;
 
+/* DMI system identification string used during boot */
+static char dmi_ids_string[128] __initdata;
+
 static const char * __init dmi_string_nosave(const struct dmi_header *dm, u8 s)
 {
 	const u8 *bp = ((u8 *) dm) + dm->length;
@@ -376,99 +379,103 @@ static void __init dmi_decode(const struct dmi_header *dm, void *dummy)
 	}
 }
 
-static void __init print_filtered(const char *info)
+static int __init print_filtered(char *buf, size_t len, const char *info)
 {
+	int c = 0;
 	const char *p;
 
 	if (!info)
-		return;
+		return c;
 
 	for (p = info; *p; p++)
 		if (isprint(*p))
-			printk(KERN_CONT "%c", *p);
+			c += scnprintf(buf + c, len - c, "%c", *p);
 		else
-			printk(KERN_CONT "\\x%02x", *p & 0xff);
+			c += scnprintf(buf + c, len - c, "\\x%02x", *p & 0xff);
+	return c;
 }
 
-static void __init dmi_dump_ids(void)
+static void __init dmi_format_ids(char *buf, size_t len)
 {
+	int c = 0;
 	const char *board;	/* Board Name is optional */
 
-	printk(KERN_DEBUG "DMI: ");
-	print_filtered(dmi_get_system_info(DMI_SYS_VENDOR));
-	printk(KERN_CONT " ");
-	print_filtered(dmi_get_system_info(DMI_PRODUCT_NAME));
+	c += print_filtered(buf + c, len - c,
+			    dmi_get_system_info(DMI_SYS_VENDOR));
+	c += scnprintf(buf + c, len - c, " ");
+	c += print_filtered(buf + c, len - c,
+			    dmi_get_system_info(DMI_PRODUCT_NAME));
+
 	board = dmi_get_system_info(DMI_BOARD_NAME);
 	if (board) {
-		printk(KERN_CONT "/");
-		print_filtered(board);
+		c += scnprintf(buf + c, len - c, "/");
+		c += print_filtered(buf + c, len - c, board);
 	}
-	printk(KERN_CONT ", BIOS ");
-	print_filtered(dmi_get_system_info(DMI_BIOS_VERSION));
-	printk(KERN_CONT " ");
-	print_filtered(dmi_get_system_info(DMI_BIOS_DATE));
-	printk(KERN_CONT "\n");
+	c += scnprintf(buf + c, len - c, ", BIOS ");
+	c += print_filtered(buf + c, len - c,
+			    dmi_get_system_info(DMI_BIOS_VERSION));
+	c += scnprintf(buf + c, len - c, " ");
+	c += print_filtered(buf + c, len - c,
+			    dmi_get_system_info(DMI_BIOS_DATE));
 }
 
-static int __init dmi_present(const char __iomem *p)
+static int __init dmi_present(const u8 *buf)
 {
-	u8 buf[15];
+	int smbios_ver;
+
+	if (memcmp(buf, "_SM_", 4) == 0 &&
+	    buf[5] < 32 && dmi_checksum(buf, buf[5])) {
+		smbios_ver = (buf[6] << 8) + buf[7];
+
+		/* Some BIOS report weird SMBIOS version, fix that up */
+		switch (smbios_ver) {
+		case 0x021F:
+		case 0x0221:
+			pr_debug("SMBIOS version fixup(2.%d->2.%d)\n",
+				 smbios_ver & 0xFF, 3);
+			smbios_ver = 0x0203;
+			break;
+		case 0x0233:
+			pr_debug("SMBIOS version fixup(2.%d->2.%d)\n", 51, 6);
+			smbios_ver = 0x0206;
+			break;
+		}
+	} else {
+		smbios_ver = 0;
+	}
 
-	memcpy_fromio(buf, p, 15);
-	if (dmi_checksum(buf, 15)) {
+	buf += 16;
+
+	if (memcmp(buf, "_DMI_", 5) == 0 && dmi_checksum(buf, 15)) {
 		dmi_num = (buf[13] << 8) | buf[12];
 		dmi_len = (buf[7] << 8) | buf[6];
 		dmi_base = (buf[11] << 24) | (buf[10] << 16) |
 			(buf[9] << 8) | buf[8];
 
 		if (dmi_walk_early(dmi_decode) == 0) {
-			if (dmi_ver)
+			if (smbios_ver) {
+				dmi_ver = smbios_ver;
 				pr_info("SMBIOS %d.%d present.\n",
 				       dmi_ver >> 8, dmi_ver & 0xFF);
-			else {
+			} else {
 				dmi_ver = (buf[14] & 0xF0) << 4 |
 					   (buf[14] & 0x0F);
 				pr_info("Legacy DMI %d.%d present.\n",
 				       dmi_ver >> 8, dmi_ver & 0xFF);
 			}
-			dmi_dump_ids();
+			dmi_format_ids(dmi_ids_string, sizeof(dmi_ids_string));
+			printk(KERN_DEBUG "DMI: %s\n", dmi_ids_string);
 			return 0;
 		}
 	}
-	dmi_ver = 0;
-	return 1;
-}
-
-static int __init smbios_present(const char __iomem *p)
-{
-	u8 buf[32];
 
-	memcpy_fromio(buf, p, 32);
-	if ((buf[5] < 32) && dmi_checksum(buf, buf[5])) {
-		dmi_ver = (buf[6] << 8) + buf[7];
-
-		/* Some BIOS report weird SMBIOS version, fix that up */
-		switch (dmi_ver) {
-		case 0x021F:
-		case 0x0221:
-			pr_debug("SMBIOS version fixup(2.%d->2.%d)\n",
-			       dmi_ver & 0xFF, 3);
-			dmi_ver = 0x0203;
-			break;
-		case 0x0233:
-			pr_debug("SMBIOS version fixup(2.%d->2.%d)\n", 51, 6);
-			dmi_ver = 0x0206;
-			break;
-		}
-		return memcmp(p + 16, "_DMI_", 5) || dmi_present(p + 16);
-	}
 	return 1;
 }
 
 void __init dmi_scan_machine(void)
 {
 	char __iomem *p, *q;
-	int rc;
+	char buf[32];
 
 	if (efi_enabled(EFI_CONFIG_TABLES)) {
 		if (efi.smbios == EFI_INVALID_TABLE_ADDR)
@@ -481,10 +488,10 @@ void __init dmi_scan_machine(void)
 		p = dmi_ioremap(efi.smbios, 32);
 		if (p == NULL)
 			goto error;
-
-		rc = smbios_present(p);
+		memcpy_fromio(buf, p, 32);
 		dmi_iounmap(p, 32);
-		if (!rc) {
+
+		if (!dmi_present(buf)) {
 			dmi_available = 1;
 			goto out;
 		}
@@ -499,18 +506,15 @@ void __init dmi_scan_machine(void)
 		if (p == NULL)
 			goto error;
 
+		memset(buf, 0, 16);
 		for (q = p; q < p + 0x10000; q += 16) {
-			if (memcmp(q, "_SM_", 4) == 0 && q - p <= 0xFFE0)
-				rc = smbios_present(q);
-			else if (memcmp(q, "_DMI_", 5) == 0)
-				rc = dmi_present(q);
-			else
-				continue;
-			if (!rc) {
+			memcpy_fromio(buf + 16, q, 16);
+			if (!dmi_present(buf)) {
 				dmi_available = 1;
 				dmi_iounmap(p, 0x10000);
 				goto out;
 			}
+			memcpy(buf, buf + 16, 16);
 		}
 		dmi_iounmap(p, 0x10000);
 	}
@@ -521,6 +525,19 @@ void __init dmi_scan_machine(void)
 }
 
 /**
+ * dmi_set_dump_stack_arch_desc - set arch description for dump_stack()
+ *
+ * Invoke dump_stack_set_arch_desc() with DMI system information so that
+ * DMI identifiers are printed out on task dumps.  Arch boot code should
+ * call this function after dmi_scan_machine() if it wants to print out DMI
+ * identifiers on task dumps.
+ */
+void __init dmi_set_dump_stack_arch_desc(void)
+{
+	dump_stack_set_arch_desc("%s", dmi_ids_string);
+}
+
+/**
  *	dmi_matches - check if dmi_system_id structure matches system DMI data
  *	@dmi: pointer to the dmi_system_id structure to check
  */
diff --git a/drivers/memstick/host/r592.c b/drivers/memstick/host/r592.c
index a7c5b31c0d50..9718661c1fb6 100644
--- a/drivers/memstick/host/r592.c
+++ b/drivers/memstick/host/r592.c
@@ -847,7 +847,7 @@ static void r592_remove(struct pci_dev *pdev)
 			dev->dummy_dma_page_physical_address);
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int r592_suspend(struct device *core_dev)
 {
 	struct pci_dev *pdev = to_pci_dev(core_dev);
@@ -870,10 +870,10 @@ static int r592_resume(struct device *core_dev)
 	r592_update_card_detect(dev);
 	return 0;
 }
-
-SIMPLE_DEV_PM_OPS(r592_pm_ops, r592_suspend, r592_resume);
 #endif
 
+static SIMPLE_DEV_PM_OPS(r592_pm_ops, r592_suspend, r592_resume);
+
 MODULE_DEVICE_TABLE(pci, r592_pci_id_tbl);
 
 static struct pci_driver r852_pci_driver = {
@@ -881,9 +881,7 @@ static struct pci_driver r852_pci_driver = {
 	.id_table	= r592_pci_id_tbl,
 	.probe		= r592_probe,
 	.remove		= r592_remove,
-#ifdef CONFIG_PM
 	.driver.pm	= &r592_pm_ops,
-#endif
 };
 
 static __init int r592_module_init(void)
diff --git a/drivers/message/i2o/i2o_config.c b/drivers/message/i2o/i2o_config.c
index 5451beff183f..a60c188c2bd9 100644
--- a/drivers/message/i2o/i2o_config.c
+++ b/drivers/message/i2o/i2o_config.c
@@ -687,6 +687,11 @@ static int i2o_cfg_passthru32(struct file *file, unsigned cmnd,
 		}
 		size = size >> 16;
 		size *= 4;
+		if (size > sizeof(rmsg)) {
+			rcode = -EINVAL;
+			goto sg_list_cleanup;
+		}
+
 		/* Copy in the user's I2O command */
 		if (copy_from_user(rmsg, user_msg, size)) {
 			rcode = -EFAULT;
@@ -922,6 +927,11 @@ static int i2o_cfg_passthru(unsigned long arg)
 		}
 		size = size >> 16;
 		size *= 4;
+		if (size > sizeof(rmsg)) {
+			rcode = -EFAULT;
+			goto sg_list_cleanup;
+		}
+
 		/* Copy in the user's I2O command */
 		if (copy_from_user(rmsg, user_msg, size)) {
 			rcode = -EFAULT;
diff --git a/drivers/net/ethernet/ibm/emac/debug.c b/drivers/net/ethernet/ibm/emac/debug.c
index b16b4828b64d..a559f326bf63 100644
--- a/drivers/net/ethernet/ibm/emac/debug.c
+++ b/drivers/net/ethernet/ibm/emac/debug.c
@@ -245,7 +245,7 @@ static void emac_sysrq_handler(int key)
 
 static struct sysrq_key_op emac_sysrq_op = {
 	.handler = emac_sysrq_handler,
-	.help_msg = "emaC",
+	.help_msg = "emac(c)",
 	.action_msg = "Show EMAC(s) status",
 };
 
diff --git a/drivers/pps/Kconfig b/drivers/pps/Kconfig
index 982d16b5a846..7512e98e9311 100644
--- a/drivers/pps/Kconfig
+++ b/drivers/pps/Kconfig
@@ -20,10 +20,10 @@ config PPS
 
 	  To compile this driver as a module, choose M here: the module
 	  will be called pps_core.ko.
+if PPS
 
 config PPS_DEBUG
 	bool "PPS debugging messages"
-	depends on PPS
 	help
 	  Say Y here if you want the PPS support to produce a bunch of debug
 	  messages to the system log.  Select this if you are having a
@@ -31,13 +31,15 @@ config PPS_DEBUG
 
 config NTP_PPS
 	bool "PPS kernel consumer support"
-	depends on PPS && !NO_HZ
+	depends on !NO_HZ
 	help
 	  This option adds support for direct in-kernel time
 	  synchronization using an external PPS signal.
 
 	  It doesn't work on tickless systems at the moment.
 
+endif
+
 source drivers/pps/clients/Kconfig
 
 source drivers/pps/generators/Kconfig
diff --git a/drivers/pps/kc.c b/drivers/pps/kc.c
index 079e930b1938..e219db1f1c84 100644
--- a/drivers/pps/kc.c
+++ b/drivers/pps/kc.c
@@ -34,10 +34,10 @@
  */
 
 /* state variables to bind kernel consumer */
-DEFINE_SPINLOCK(pps_kc_hardpps_lock);
+static DEFINE_SPINLOCK(pps_kc_hardpps_lock);
 /* PPS API (RFC 2783): current source and mode for kernel consumer */
-struct pps_device *pps_kc_hardpps_dev;	/* unique pointer to device */
-int pps_kc_hardpps_mode;		/* mode bits for kernel consumer */
+static struct pps_device *pps_kc_hardpps_dev;	/* unique pointer to device */
+static int pps_kc_hardpps_mode;		/* mode bits for kernel consumer */
 
 /* pps_kc_bind - control PPS kernel consumer binding
  * @pps: the PPS source
diff --git a/drivers/staging/speakup/kobjects.c b/drivers/staging/speakup/kobjects.c
index d6d9264e4ca7..943b6c134a22 100644
--- a/drivers/staging/speakup/kobjects.c
+++ b/drivers/staging/speakup/kobjects.c
@@ -15,6 +15,7 @@
 #include <linux/kernel.h>
 #include <linux/kobject.h>
 #include <linux/string.h>
+#include <linux/string_helpers.h>
 #include <linux/sysfs.h>
 #include <linux/ctype.h>
 
@@ -417,7 +418,7 @@ static ssize_t synth_direct_store(struct kobject *kobj,
 		bytes = min_t(size_t, len, 250);
 		strncpy(tmp, ptr, bytes);
 		tmp[bytes] = '\0';
-		spk_xlate(tmp);
+		string_unescape_any_inplace(tmp);
 		synth_printf("%s", tmp);
 		ptr += bytes;
 		len -= bytes;
@@ -605,7 +606,8 @@ ssize_t spk_var_store(struct kobject *kobj, struct kobj_attribute *attr,
 	if (param->data == NULL)
 		return 0;
 	ret = 0;
-	cp = spk_xlate((char *) buf);
+	cp = (char *)buf;
+	string_unescape_any_inplace(cp);
 
 	spk_lock(flags);
 	switch (param->var_type) {
diff --git a/drivers/staging/speakup/speakup.h b/drivers/staging/speakup/speakup.h
index c387a02fc1c2..0126f714821a 100644
--- a/drivers/staging/speakup/speakup.h
+++ b/drivers/staging/speakup/speakup.h
@@ -54,7 +54,6 @@ void spk_get_index_count(int *linecount, int *sentcount);
 extern int spk_set_key_info(const u_char *key_info, u_char *k_buffer);
 extern char *spk_strlwr(char *s);
 extern char *spk_s2uchar(char *start, char *dest);
-extern char *spk_xlate(char *s);
 extern int speakup_kobj_init(void);
 extern void speakup_kobj_exit(void);
 extern int spk_chartab_get_value(char *keyword);
diff --git a/drivers/staging/speakup/varhandlers.c b/drivers/staging/speakup/varhandlers.c
index 0099cb12e560..7f6288fc2299 100644
--- a/drivers/staging/speakup/varhandlers.c
+++ b/drivers/staging/speakup/varhandlers.c
@@ -328,49 +328,3 @@ char *spk_s2uchar(char *start, char *dest)
 	*dest = (u_char)val;
 	return start;
 }
-
-char *spk_xlate(char *s)
-{
-	static const char finds[] = "nrtvafe";
-	static const char subs[] = "\n\r\t\013\001\014\033";
-	static const char hx[] = "0123456789abcdefABCDEF";
-	char *p = s, *p1, *p2, c;
-	int num;
-	while ((p = strchr(p, '\\'))) {
-		p1 = p+1;
-		p2 = strchr(finds, *p1);
-		if (p2) {
-			*p++ = subs[p2-finds];
-			p1++;
-		} else if (*p1 >= '0' && *p1 <= '7') {
-			num = (*p1++)&7;
-			while (num < 32 && *p1 >= '0' && *p1 <= '7') {
-				num <<= 3;
-				num += (*p1++)&7;
-			}
-			*p++ = num;
-		} else if (*p1 == 'x' &&
-				strchr(hx, p1[1]) && strchr(hx, p1[2])) {
-			p1++;
-			c = *p1++;
-			if (c > '9')
-				c = (c - '7') & 0x0f;
-			else
-				c -= '0';
-			num = c << 4;
-			c = *p1++;
-			if (c > '9')
-				c = (c-'7')&0x0f;
-			else
-				c -= '0';
-			num += c;
-			*p++ = num;
-		} else
-			*p++ = *p1++;
-		p2 = p;
-		while (*p1)
-			*p2++ = *p1++;
-		*p2 = '\0';
-	}
-	return s;
-}
diff --git a/drivers/staging/zcache/Kconfig b/drivers/staging/zcache/Kconfig
index 05e87a1e5d93..2d7b2da3b9e0 100644
--- a/drivers/staging/zcache/Kconfig
+++ b/drivers/staging/zcache/Kconfig
@@ -1,5 +1,5 @@
 config ZCACHE
-	bool "Dynamic compression of swap pages and clean pagecache pages"
+	tristate "Dynamic compression of swap pages and clean pagecache pages"
 	depends on CRYPTO=y && SWAP=y && CLEANCACHE && FRONTSWAP
 	select CRYPTO_LZO
 	default n
@@ -19,8 +19,8 @@ config ZCACHE_DEBUG
 	  how zcache is doing. You probably want to set this to 'N'.
 
 config RAMSTER
-	bool "Cross-machine RAM capacity sharing, aka peer-to-peer tmem"
-	depends on CONFIGFS_FS=y && SYSFS=y && !HIGHMEM && ZCACHE=y
+	tristate "Cross-machine RAM capacity sharing, aka peer-to-peer tmem"
+	depends on CONFIGFS_FS=y && SYSFS=y && !HIGHMEM && ZCACHE
 	depends on NET
 	# must ensure struct page is 8-byte aligned
 	select HAVE_ALIGNED_STRUCT_PAGE if !64BIT
diff --git a/drivers/staging/zcache/ramster.h b/drivers/staging/zcache/ramster.h
index 1b71aea2ff62..e1f91d5a0f6a 100644
--- a/drivers/staging/zcache/ramster.h
+++ b/drivers/staging/zcache/ramster.h
@@ -11,10 +11,14 @@
 #ifndef _ZCACHE_RAMSTER_H_
 #define _ZCACHE_RAMSTER_H_
 
+#ifdef CONFIG_RAMSTER_MODULE
+#define CONFIG_RAMSTER
+#endif
+
 #ifdef CONFIG_RAMSTER
 #include "ramster/ramster.h"
 #else
-static inline void ramster_init(bool x, bool y, bool z)
+static inline void ramster_init(bool x, bool y, bool z, bool w)
 {
 }
 
diff --git a/drivers/staging/zcache/ramster/debug.c b/drivers/staging/zcache/ramster/debug.c
index bf34133cc631..327e4f0d98e1 100644
--- a/drivers/staging/zcache/ramster/debug.c
+++ b/drivers/staging/zcache/ramster/debug.c
@@ -43,7 +43,7 @@ static struct debug_entry {
 };
 #undef ATTR
 
-int __init ramster_debugfs_init(void)
+int ramster_debugfs_init(void)
 {
 	int i;
 	struct dentry *root = debugfs_create_dir("ramster", NULL);
diff --git a/drivers/staging/zcache/ramster/nodemanager.c b/drivers/staging/zcache/ramster/nodemanager.c
index c0f48158735d..2cfe93342c0d 100644
--- a/drivers/staging/zcache/ramster/nodemanager.c
+++ b/drivers/staging/zcache/ramster/nodemanager.c
@@ -949,7 +949,7 @@ static void __exit exit_r2nm(void)
 	r2hb_exit();
 }
 
-static int __init init_r2nm(void)
+int r2nm_init(void)
 {
 	int ret = -1;
 
@@ -986,10 +986,11 @@ out_r2hb:
 out:
 	return ret;
 }
+EXPORT_SYMBOL_GPL(r2nm_init);
 
 MODULE_AUTHOR("Oracle");
 MODULE_LICENSE("GPL");
 
-/* module_init(init_r2nm) */
-late_initcall(init_r2nm);
-/* module_exit(exit_r2nm) */
+#ifndef CONFIG_RAMSTER_MODULE
+late_initcall(r2nm_init);
+#endif
diff --git a/drivers/staging/zcache/ramster/ramster.c b/drivers/staging/zcache/ramster/ramster.c
index 87816279ce3c..b18b887db79f 100644
--- a/drivers/staging/zcache/ramster/ramster.c
+++ b/drivers/staging/zcache/ramster/ramster.c
@@ -121,6 +121,7 @@ int ramster_do_preload_flnode(struct tmem_pool *pool)
 		kmem_cache_free(ramster_flnode_cache, flnode);
 	return ret;
 }
+EXPORT_SYMBOL_GPL(ramster_do_preload_flnode);
 
 /*
  * Called by the message handler after a (still compressed) page has been
@@ -388,6 +389,7 @@ void *ramster_pampd_free(void *pampd, struct tmem_pool *pool,
 	}
 	return local_pampd;
 }
+EXPORT_SYMBOL_GPL(ramster_pampd_free);
 
 void ramster_count_foreign_pages(bool eph, int count)
 {
@@ -408,6 +410,7 @@ void ramster_count_foreign_pages(bool eph, int count)
 		}
 	}
 }
+EXPORT_SYMBOL_GPL(ramster_count_foreign_pages);
 
 /*
  * For now, just push over a few pages every few seconds to
@@ -593,7 +596,7 @@ requeue:
 	ramster_remotify_queue_delayed_work(HZ);
 }
 
-void __init ramster_remotify_init(void)
+void ramster_remotify_init(void)
 {
 	unsigned long n = 60UL;
 	ramster_remotify_workqueue =
@@ -768,8 +771,10 @@ static bool frontswap_selfshrinking __read_mostly;
 static void selfshrink_process(struct work_struct *work);
 static DECLARE_DELAYED_WORK(selfshrink_worker, selfshrink_process);
 
+#ifndef CONFIG_RAMSTER_MODULE
 /* Enable/disable with kernel boot option. */
-static bool use_frontswap_selfshrink __initdata = true;
+static bool use_frontswap_selfshrink = true;
+#endif
 
 /*
  * The default values for the following parameters were deemed reasonable
@@ -824,6 +829,7 @@ static void frontswap_selfshrink(void)
 	frontswap_shrink(tgt_frontswap_pages);
 }
 
+#ifndef CONFIG_RAMSTER_MODULE
 static int __init ramster_nofrontswap_selfshrink_setup(char *s)
 {
 	use_frontswap_selfshrink = false;
@@ -831,6 +837,7 @@ static int __init ramster_nofrontswap_selfshrink_setup(char *s)
 }
 
 __setup("noselfshrink", ramster_nofrontswap_selfshrink_setup);
+#endif
 
 static void selfshrink_process(struct work_struct *work)
 {
@@ -849,6 +856,7 @@ void ramster_cpu_up(int cpu)
 	per_cpu(ramster_remoteputmem1, cpu) = p1;
 	per_cpu(ramster_remoteputmem2, cpu) = p2;
 }
+EXPORT_SYMBOL_GPL(ramster_cpu_up);
 
 void ramster_cpu_down(int cpu)
 {
@@ -864,6 +872,7 @@ void ramster_cpu_down(int cpu)
 		kp->flnode = NULL;
 	}
 }
+EXPORT_SYMBOL_GPL(ramster_cpu_down);
 
 void ramster_register_pamops(struct tmem_pamops *pamops)
 {
@@ -874,9 +883,11 @@ void ramster_register_pamops(struct tmem_pamops *pamops)
 	pamops->repatriate = ramster_pampd_repatriate;
 	pamops->repatriate_preload = ramster_pampd_repatriate_preload;
 }
+EXPORT_SYMBOL_GPL(ramster_register_pamops);
 
-void __init ramster_init(bool cleancache, bool frontswap,
-				bool frontswap_exclusive_gets)
+void ramster_init(bool cleancache, bool frontswap,
+				bool frontswap_exclusive_gets,
+				bool frontswap_selfshrink)
 {
 	int ret = 0;
 
@@ -891,10 +902,17 @@ void __init ramster_init(bool cleancache, bool frontswap,
 	if (ret)
 		pr_err("ramster: can't create sysfs for ramster\n");
 	(void)r2net_register_handlers();
+#ifdef CONFIG_RAMSTER_MODULE
+	ret = r2nm_init();
+	if (ret)
+		pr_err("ramster: can't init r2net\n");
+	frontswap_selfshrinking = frontswap_selfshrink;
+#else
+	frontswap_selfshrinking = use_frontswap_selfshrink;
+#endif
 	INIT_LIST_HEAD(&ramster_rem_op_list);
 	ramster_flnode_cache = kmem_cache_create("ramster_flnode",
 				sizeof(struct flushlist_node), 0, 0, NULL);
-	frontswap_selfshrinking = use_frontswap_selfshrink;
 	if (frontswap_selfshrinking) {
 		pr_info("ramster: Initializing frontswap selfshrink driver.\n");
 		schedule_delayed_work(&selfshrink_worker,
@@ -902,3 +920,4 @@ void __init ramster_init(bool cleancache, bool frontswap,
 	}
 	ramster_remotify_init();
 }
+EXPORT_SYMBOL_GPL(ramster_init);
diff --git a/drivers/staging/zcache/ramster/ramster.h b/drivers/staging/zcache/ramster/ramster.h
index 12ae56f09ca4..6d41a7a772e3 100644
--- a/drivers/staging/zcache/ramster/ramster.h
+++ b/drivers/staging/zcache/ramster/ramster.h
@@ -147,7 +147,7 @@ extern int r2net_register_handlers(void);
 extern int r2net_remote_target_node_set(int);
 
 extern int ramster_remotify_pageframe(bool);
-extern void ramster_init(bool, bool, bool);
+extern void ramster_init(bool, bool, bool, bool);
 extern void ramster_register_pamops(struct tmem_pamops *);
 extern int ramster_localify(int, struct tmem_oid *oidp, uint32_t, char *,
 				unsigned int, void *);
diff --git a/drivers/staging/zcache/ramster/ramster_nodemanager.h b/drivers/staging/zcache/ramster/ramster_nodemanager.h
index 49f879d943ab..dbaae34ea613 100644
--- a/drivers/staging/zcache/ramster/ramster_nodemanager.h
+++ b/drivers/staging/zcache/ramster/ramster_nodemanager.h
@@ -36,4 +36,6 @@
 /* host name, group name, cluster name all 64 bytes */
 #define R2NM_MAX_NAME_LEN        64    /* __NEW_UTS_LEN */
 
+extern int r2nm_init(void);
+
 #endif /* _RAMSTER_NODEMANAGER_H */
diff --git a/drivers/staging/zcache/tmem.c b/drivers/staging/zcache/tmem.c
index a2b7e03b6062..d7e51e4152eb 100644
--- a/drivers/staging/zcache/tmem.c
+++ b/drivers/staging/zcache/tmem.c
@@ -35,7 +35,8 @@
 #include <linux/list.h>
 #include <linux/spinlock.h>
 #include <linux/atomic.h>
-#ifdef CONFIG_RAMSTER
+#include <linux/export.h>
+#if defined(CONFIG_RAMSTER) || defined(CONFIG_RAMSTER_MODULE)
 #include <linux/delay.h>
 #endif
 
@@ -641,6 +642,7 @@ void *tmem_localify_get_pampd(struct tmem_pool *pool, struct tmem_oid *oidp,
 	/* note, hashbucket remains locked */
 	return pampd;
 }
+EXPORT_SYMBOL_GPL(tmem_localify_get_pampd);
 
 void tmem_localify_finish(struct tmem_obj *obj, uint32_t index,
 			  void *pampd, void *saved_hb, bool delete)
@@ -658,6 +660,7 @@ void tmem_localify_finish(struct tmem_obj *obj, uint32_t index,
 	}
 	spin_unlock(&hb->lock);
 }
+EXPORT_SYMBOL_GPL(tmem_localify_finish);
 
 /*
  * For ramster only.  Helper function to support asynchronous tmem_get.
@@ -719,6 +722,7 @@ out:
 	spin_unlock(&hb->lock);
 	return ret;
 }
+EXPORT_SYMBOL_GPL(tmem_replace);
 #endif