Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask into merge-rr-cpumask

Conflicts: arch/x86/kernel/io_apic.c kernel/rcuclassic.c kernel/sched.c kernel/time/tick-sched.c Signed-off-by: Mike Travis <travis@sgi.com> [ mingo@elte.hu: backmerged typo fix for io_apic.c ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
author: Mike Travis <travis@sgi.com> 2008-12-31 17:34:16 -0800
committer: Ingo Molnar <mingo@elte.hu> 2009-01-03 18:53:31 +0100
commit: 7eb19553369c46cc1fa64caf120cbcab1b597f7c (patch)
tree: ef1a3beae706b9497c845d0a2557ceb4d2754998 /arch/s390
parent: 6092848a2a23b660150a38bc06f59d75838d70c8 (diff)
parent: 8c384cdee3e04d6194a2c2b192b624754f990835 (diff)
65 files changed, 1953 insertions, 830 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index b4aa5869c7f9..19577aeffd7b 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -43,6 +43,9 @@ config GENERIC_HWEIGHT
 config GENERIC_TIME
 	def_bool y
 
+config GENERIC_TIME_VSYSCALL
+	def_bool y
+
 config GENERIC_CLOCKEVENTS
 	def_bool y
 
@@ -66,10 +69,15 @@ config PGSTE
 	bool
 	default y if KVM
 
+config VIRT_CPU_ACCOUNTING
+	def_bool y
+
 mainmenu "Linux Kernel Configuration"
 
 config S390
 	def_bool y
+	select USE_GENERIC_SMP_HELPERS if SMP
+	select HAVE_FUNCTION_TRACER
 	select HAVE_OPROFILE
 	select HAVE_KPROBES
 	select HAVE_KRETPROBES
@@ -226,6 +234,14 @@ config MARCH_Z9_109
 	  Class (z9 BC). The kernel will be slightly faster but will not
 	  work on older machines such as the z990, z890, z900, and z800.
 
+config MARCH_Z10
+	bool "IBM System z10"
+	help
+	  Select this to enable optimizations for IBM System z10. The
+	  kernel will be slightly faster but will not work on older
+	  machines such as the z990, z890, z900, z800, z9-109, z9-ec
+	  and z9-bc.
+
 endchoice
 
 config PACK_STACK
@@ -344,16 +360,6 @@ config QDIO
 
 	  If unsure, say Y.
 
-config QDIO_DEBUG
-	bool "Extended debugging information"
-	depends on QDIO
-	help
-	  Say Y here to get extended debugging output in
-	    /sys/kernel/debug/s390dbf/qdio...
-	  Warning: this option reduces the performance of the QDIO module.
-
-	  If unsure, say N.
-
 config CHSC_SCH
 	tristate "Support for CHSC subchannels"
 	help
@@ -467,22 +473,9 @@ config PAGE_STATES
 	  hypervisor. The ESSA instruction is used to do the states
 	  changes between a page that has content and the unused state.
 
-config VIRT_TIMER
-	bool "Virtual CPU timer support"
-	help
-	  This provides a kernel interface for virtual CPU timers.
-	  Default is disabled.
-
-config VIRT_CPU_ACCOUNTING
-	bool "Base user process accounting on virtual cpu timer"
-	depends on VIRT_TIMER
-	help
-	  Select this option to use CPU timer deltas to do user
-	  process accounting.
-
 config APPLDATA_BASE
 	bool "Linux - VM Monitor Stream, base infrastructure"
-	depends on PROC_FS && VIRT_TIMER=y
+	depends on PROC_FS
 	help
 	  This provides a kernel interface for creating and updating z/VM APPLDATA
 	  monitor records. The monitor records are updated at certain time
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index 792a4e7743ce..578c61f15a4b 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -34,6 +34,7 @@ cflags-$(CONFIG_MARCH_G5)   += $(call cc-option,-march=g5)
 cflags-$(CONFIG_MARCH_Z900) += $(call cc-option,-march=z900)
 cflags-$(CONFIG_MARCH_Z990) += $(call cc-option,-march=z990)
 cflags-$(CONFIG_MARCH_Z9_109) += $(call cc-option,-march=z9-109)
+cflags-$(CONFIG_MARCH_Z10) += $(call cc-option,-march=z10)
 
 #KBUILD_IMAGE is necessary for make rpm
 KBUILD_IMAGE	:=arch/s390/boot/image
diff --git a/arch/s390/appldata/appldata.h b/arch/s390/appldata/appldata.h
index 17a2636fec0a..f0b23fc759ba 100644
--- a/arch/s390/appldata/appldata.h
+++ b/arch/s390/appldata/appldata.h
@@ -26,10 +26,6 @@
 #define CTL_APPLDATA_NET_SUM	2125
 #define CTL_APPLDATA_PROC	2126
 
-#define P_INFO(x...)	printk(KERN_INFO MY_PRINT_NAME " info: " x)
-#define P_ERROR(x...)	printk(KERN_ERR MY_PRINT_NAME " error: " x)
-#define P_WARNING(x...)	printk(KERN_WARNING MY_PRINT_NAME " status: " x)
-
 struct appldata_ops {
 	struct list_head list;
 	struct ctl_table_header *sysctl_header;
diff --git a/arch/s390/appldata/appldata_base.c b/arch/s390/appldata/appldata_base.c
index a06a47cdd5e0..27b70d8a359c 100644
--- a/arch/s390/appldata/appldata_base.c
+++ b/arch/s390/appldata/appldata_base.c
@@ -10,6 +10,9 @@
  * Author: Gerald Schaefer <gerald.schaefer@de.ibm.com>
  */
 
+#define KMSG_COMPONENT	"appldata"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
@@ -32,7 +35,6 @@
 #include "appldata.h"
 
 
-#define MY_PRINT_NAME	"appldata"		/* for debug messages, etc. */
 #define APPLDATA_CPU_INTERVAL	10000		/* default (CPU) time for
 						   sampling interval in
 						   milliseconds */
@@ -390,8 +392,8 @@ appldata_generic_handler(ctl_table *ctl, int write, struct file *filp,
 					(unsigned long) ops->data, ops->size,
 					ops->mod_lvl);
 		if (rc != 0) {
-			P_ERROR("START DIAG 0xDC for %s failed, "
-				"return code: %d\n", ops->name, rc);
+			pr_err("Starting the data collection for %s "
+			       "failed with rc=%d\n", ops->name, rc);
 			module_put(ops->owner);
 		} else
 			ops->active = 1;
@@ -401,8 +403,8 @@ appldata_generic_handler(ctl_table *ctl, int write, struct file *filp,
 				(unsigned long) ops->data, ops->size,
 				ops->mod_lvl);
 		if (rc != 0)
-			P_ERROR("STOP DIAG 0xDC for %s failed, "
-				"return code: %d\n", ops->name, rc);
+			pr_err("Stopping the data collection for %s "
+			       "failed with rc=%d\n", ops->name, rc);
 		module_put(ops->owner);
 	}
 	spin_unlock(&appldata_ops_lock);
diff --git a/arch/s390/appldata/appldata_net_sum.c b/arch/s390/appldata/appldata_net_sum.c
index 3b746556e1a3..fa741f84c5b9 100644
--- a/arch/s390/appldata/appldata_net_sum.c
+++ b/arch/s390/appldata/appldata_net_sum.c
@@ -67,7 +67,6 @@ static void appldata_get_net_sum_data(void *data)
 	int i;
 	struct appldata_net_sum_data *net_data;
 	struct net_device *dev;
-	struct net_device_stats *stats;
 	unsigned long rx_packets, tx_packets, rx_bytes, tx_bytes, rx_errors,
 			tx_errors, rx_dropped, tx_dropped, collisions;
 
@@ -86,7 +85,8 @@ static void appldata_get_net_sum_data(void *data)
 	collisions = 0;
 	read_lock(&dev_base_lock);
 	for_each_netdev(&init_net, dev) {
-		stats = dev->get_stats(dev);
+		const struct net_device_stats *stats = dev_get_stats(dev);
+
 		rx_packets += stats->rx_packets;
 		tx_packets += stats->tx_packets;
 		rx_bytes   += stats->rx_bytes;
diff --git a/arch/s390/appldata/appldata_os.c b/arch/s390/appldata/appldata_os.c
index eb44f9f8ab91..55c80ffd42b9 100644
--- a/arch/s390/appldata/appldata_os.c
+++ b/arch/s390/appldata/appldata_os.c
@@ -9,6 +9,9 @@
  * Author: Gerald Schaefer <gerald.schaefer@de.ibm.com>
  */
 
+#define KMSG_COMPONENT	"appldata"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
@@ -22,7 +25,6 @@
 #include "appldata.h"
 
 
-#define MY_PRINT_NAME	"appldata_os"		/* for debug messages, etc. */
 #define LOAD_INT(x) ((x) >> FSHIFT)
 #define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
 
@@ -143,21 +145,16 @@ static void appldata_get_os_data(void *data)
 					   (unsigned long) ops.data, new_size,
 					   ops.mod_lvl);
 			if (rc != 0)
-				P_ERROR("os: START NEW DIAG 0xDC failed, "
-					"return code: %d, new size = %i\n", rc,
-					new_size);
+				pr_err("Starting a new OS data collection "
+				       "failed with rc=%d\n", rc);
 
 			rc = appldata_diag(APPLDATA_RECORD_OS_ID,
 					   APPLDATA_STOP_REC,
 					   (unsigned long) ops.data, ops.size,
 					   ops.mod_lvl);
 			if (rc != 0)
-				P_ERROR("os: STOP OLD DIAG 0xDC failed, "
-					"return code: %d, old size = %i\n", rc,
-					ops.size);
-			else
-				P_INFO("os: old record size = %i stopped\n",
-					ops.size);
+				pr_err("Stopping a faulty OS data "
+				       "collection failed with rc=%d\n", rc);
 		}
 		ops.size = new_size;
 	}
@@ -178,8 +175,8 @@ static int __init appldata_os_init(void)
 	max_size = sizeof(struct appldata_os_data) +
 		   (NR_CPUS * sizeof(struct appldata_os_per_cpu));
 	if (max_size > APPLDATA_MAX_REC_SIZE) {
-		P_ERROR("Max. size of OS record = %i, bigger than maximum "
-			"record size (%i)\n", max_size, APPLDATA_MAX_REC_SIZE);
+		pr_err("Maximum OS record size %i exceeds the maximum "
+		       "record size %i\n", max_size, APPLDATA_MAX_REC_SIZE);
 		rc = -ENOMEM;
 		goto out;
 	}
diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c
index e33f32b54c08..c42cd898f68b 100644
--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -17,6 +17,9 @@
  *
  */
 
+#define KMSG_COMPONENT "aes_s390"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
 #include <crypto/aes.h>
 #include <crypto/algapi.h>
 #include <linux/err.h>
@@ -169,7 +172,8 @@ static int fallback_init_cip(struct crypto_tfm *tfm)
 			CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK);
 
 	if (IS_ERR(sctx->fallback.cip)) {
-		printk(KERN_ERR "Error allocating fallback algo %s\n", name);
+		pr_err("Allocating AES fallback algorithm %s failed\n",
+		       name);
 		return PTR_ERR(sctx->fallback.blk);
 	}
 
@@ -349,7 +353,8 @@ static int fallback_init_blk(struct crypto_tfm *tfm)
 			CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK);
 
 	if (IS_ERR(sctx->fallback.blk)) {
-		printk(KERN_ERR "Error allocating fallback algo %s\n", name);
+		pr_err("Allocating AES fallback algorithm %s failed\n",
+		       name);
 		return PTR_ERR(sctx->fallback.blk);
 	}
 
@@ -515,9 +520,8 @@ static int __init aes_s390_init(void)
 
 	/* z9 109 and z9 BC/EC only support 128 bit key length */
 	if (keylen_flag == AES_KEYLEN_128)
-		printk(KERN_INFO
-		       "aes_s390: hardware acceleration only available for "
-		       "128 bit keys\n");
+		pr_info("AES hardware acceleration is only available for"
+			" 128-bit keys\n");
 
 	ret = crypto_register_alg(&aes_alg);
 	if (ret)
diff --git a/arch/s390/hypfs/hypfs_diag.c b/arch/s390/hypfs/hypfs_diag.c
index b9a1ce1f28e4..b1e892a43816 100644
--- a/arch/s390/hypfs/hypfs_diag.c
+++ b/arch/s390/hypfs/hypfs_diag.c
@@ -3,10 +3,13 @@
  *    Hypervisor filesystem for Linux on s390. Diag 204 and 224
  *    implementation.
  *
- *    Copyright (C) IBM Corp. 2006
+ *    Copyright IBM Corp. 2006, 2008
  *    Author(s): Michael Holzheu <holzheu@de.ibm.com>
  */
 
+#define KMSG_COMPONENT "hypfs"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/string.h>
@@ -527,13 +530,14 @@ __init int hypfs_diag_init(void)
 	int rc;
 
 	if (diag204_probe()) {
-		printk(KERN_ERR "hypfs: diag 204 not working.");
+		pr_err("The hardware system does not support hypfs\n");
 		return -ENODATA;
 	}
 	rc = diag224_get_name_table();
 	if (rc) {
 		diag204_free_buffer();
-		printk(KERN_ERR "hypfs: could not get name table.\n");
+		pr_err("The hardware system does not provide all "
+		       "functions required by hypfs\n");
 	}
 	return rc;
 }
diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index 36313801cd5c..9d4f8e6c0800 100644
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -2,10 +2,13 @@
  *  arch/s390/hypfs/inode.c
  *    Hypervisor filesystem for Linux on s390.
  *
- *    Copyright (C) IBM Corp. 2006
+ *    Copyright IBM Corp. 2006, 2008
  *    Author(s): Michael Holzheu <holzheu@de.ibm.com>
  */
 
+#define KMSG_COMPONENT "hypfs"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/fs.h>
@@ -200,7 +203,7 @@ static ssize_t hypfs_aio_write(struct kiocb *iocb, const struct iovec *iov,
 	else
 		rc = hypfs_diag_create_files(sb, sb->s_root);
 	if (rc) {
-		printk(KERN_ERR "hypfs: Update failed\n");
+		pr_err("Updating the hypfs tree failed\n");
 		hypfs_delete_tree(sb->s_root);
 		goto out;
 	}
@@ -252,8 +255,7 @@ static int hypfs_parse_options(char *options, struct super_block *sb)
 			break;
 		case opt_err:
 		default:
-			printk(KERN_ERR "hypfs: Unrecognized mount option "
-			       "\"%s\" or missing value\n", str);
+			pr_err("%s is not a valid mount option\n", str);
 			return -EINVAL;
 		}
 	}
@@ -280,8 +282,8 @@ static int hypfs_fill_super(struct super_block *sb, void *data, int silent)
 	if (!sbi)
 		return -ENOMEM;
 	mutex_init(&sbi->lock);
-	sbi->uid = current->uid;
-	sbi->gid = current->gid;
+	sbi->uid = current_uid();
+	sbi->gid = current_gid();
 	sb->s_fs_info = sbi;
 	sb->s_blocksize = PAGE_CACHE_SIZE;
 	sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
@@ -317,7 +319,7 @@ static int hypfs_fill_super(struct super_block *sb, void *data, int silent)
 	}
 	hypfs_update_update(sb);
 	sb->s_root = root_dentry;
-	printk(KERN_INFO "hypfs: Hypervisor filesystem mounted\n");
+	pr_info("Hypervisor filesystem mounted\n");
 	return 0;
 
 err_tree:
@@ -513,7 +515,7 @@ fail_sysfs:
 	if (!MACHINE_IS_VM)
 		hypfs_diag_exit();
 fail_diag:
-	printk(KERN_ERR "hypfs: Initialization failed with rc = %i.\n", rc);
+	pr_err("Initialization of hypfs failed with rc=%i\n", rc);
 	return rc;
 }
 
diff --git a/arch/s390/include/asm/auxvec.h b/arch/s390/include/asm/auxvec.h
index 0d340720fd99..a1f153e89133 100644
--- a/arch/s390/include/asm/auxvec.h
+++ b/arch/s390/include/asm/auxvec.h
@@ -1,4 +1,6 @@
 #ifndef __ASMS390_AUXVEC_H
 #define __ASMS390_AUXVEC_H
 
+#define AT_SYSINFO_EHDR		33
+
 #endif
diff --git a/arch/s390/include/asm/bug.h b/arch/s390/include/asm/bug.h
index 384e3621e341..7efd0abe8887 100644
--- a/arch/s390/include/asm/bug.h
+++ b/arch/s390/include/asm/bug.h
@@ -47,7 +47,10 @@
 
 #endif /* CONFIG_DEBUG_BUGVERBOSE */
 
-#define BUG()	__EMIT_BUG(0)
+#define BUG() do {					\
+	__EMIT_BUG(0);					\
+	for (;;);					\
+} while (0)
 
 #define WARN_ON(x) ({					\
 	int __ret_warn_on = !!(x);			\
diff --git a/arch/s390/include/asm/byteorder.h b/arch/s390/include/asm/byteorder.h
index 1fe2492baa8d..8bcf277c8468 100644
--- a/arch/s390/include/asm/byteorder.h
+++ b/arch/s390/include/asm/byteorder.h
@@ -11,32 +11,39 @@
 
 #include <asm/types.h>
 
-#ifdef __GNUC__
+#define __BIG_ENDIAN
+
+#ifndef __s390x__
+# define __SWAB_64_THRU_32__
+#endif
 
 #ifdef __s390x__
-static inline __u64 ___arch__swab64p(const __u64 *x)
+static inline __u64 __arch_swab64p(const __u64 *x)
 {
 	__u64 result;
 
 	asm volatile("lrvg %0,%1" : "=d" (result) : "m" (*x));
 	return result;
 }
+#define __arch_swab64p __arch_swab64p
 
-static inline __u64 ___arch__swab64(__u64 x)
+static inline __u64 __arch_swab64(__u64 x)
 {
 	__u64 result;
 
 	asm volatile("lrvgr %0,%1" : "=d" (result) : "d" (x));
 	return result;
 }
+#define __arch_swab64 __arch_swab64
 
-static inline void ___arch__swab64s(__u64 *x)
+static inline void __arch_swab64s(__u64 *x)
 {
-	*x = ___arch__swab64p(x);
+	*x = __arch_swab64p(x);
 }
+#define __arch_swab64s __arch_swab64s
 #endif /* __s390x__ */
 
-static inline __u32 ___arch__swab32p(const __u32 *x)
+static inline __u32 __arch_swab32p(const __u32 *x)
 {
 	__u32 result;
 	
@@ -53,25 +60,20 @@ static inline __u32 ___arch__swab32p(const __u32 *x)
 #endif /* __s390x__ */
 	return result;
 }
+#define __arch_swab32p __arch_swab32p
 
-static inline __u32 ___arch__swab32(__u32 x)
+#ifdef __s390x__
+static inline __u32 __arch_swab32(__u32 x)
 {
-#ifndef __s390x__
-	return ___arch__swab32p(&x);
-#else /* __s390x__ */
 	__u32 result;
 	
 	asm volatile("lrvr  %0,%1" : "=d" (result) : "d" (x));
 	return result;
-#endif /* __s390x__ */
-}
-
-static __inline__ void ___arch__swab32s(__u32 *x)
-{
-	*x = ___arch__swab32p(x);
 }
+#define __arch_swab32 __arch_swab32
+#endif /* __s390x__ */
 
-static __inline__ __u16 ___arch__swab16p(const __u16 *x)
+static inline __u16 __arch_swab16p(const __u16 *x)
 {
 	__u16 result;
 	
@@ -86,40 +88,8 @@ static __inline__ __u16 ___arch__swab16p(const __u16 *x)
 #endif /* __s390x__ */
 	return result;
 }
+#define __arch_swab16p __arch_swab16p
 
-static __inline__ __u16 ___arch__swab16(__u16 x)
-{
-	return ___arch__swab16p(&x);
-}
-
-static __inline__ void ___arch__swab16s(__u16 *x)
-{
-	*x = ___arch__swab16p(x);
-}
-
-#ifdef __s390x__
-#define __arch__swab64(x) ___arch__swab64(x)
-#define __arch__swab64p(x) ___arch__swab64p(x)
-#define __arch__swab64s(x) ___arch__swab64s(x)
-#endif /* __s390x__ */
-#define __arch__swab32(x) ___arch__swab32(x)
-#define __arch__swab16(x) ___arch__swab16(x)
-#define __arch__swab32p(x) ___arch__swab32p(x)
-#define __arch__swab16p(x) ___arch__swab16p(x)
-#define __arch__swab32s(x) ___arch__swab32s(x)
-#define __arch__swab16s(x) ___arch__swab16s(x)
-
-#ifndef __s390x__
-#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
-#  define __BYTEORDER_HAS_U64__
-#  define __SWAB_64_THRU_32__
-#endif
-#else /* __s390x__ */
-#define __BYTEORDER_HAS_U64__
-#endif /* __s390x__ */
-
-#endif /* __GNUC__ */
-
-#include <linux/byteorder/big_endian.h>
+#include <linux/byteorder.h>
 
 #endif /* _S390_BYTEORDER_H */
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index 261785ab5b22..d480f39d65e6 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -120,6 +120,10 @@ typedef s390_compat_regs compat_elf_gregset_t;
 #include <asm/system.h>		/* for save_access_regs */
 #include <asm/mmu_context.h>
 
+#include <asm/vdso.h>
+
+extern unsigned int vdso_enabled;
+
 /*
  * This is used to ensure we don't load something for the wrong architecture.
  */
@@ -191,4 +195,16 @@ do {							\
 	current->mm->context.noexec == 0;		\
 })
 
+#define ARCH_DLINFO							    \
+do {									    \
+	if (vdso_enabled)						    \
+		NEW_AUX_ENT(AT_SYSINFO_EHDR,				    \
+			    (unsigned long)current->mm->context.vdso_base); \
+} while (0)
+
+struct linux_binprm;
+
+#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
+int arch_setup_additional_pages(struct linux_binprm *, int);
+
 #endif
diff --git a/arch/s390/include/asm/fcx.h b/arch/s390/include/asm/fcx.h
index 8be1f3a58042..ef6170995076 100644
--- a/arch/s390/include/asm/fcx.h
+++ b/arch/s390/include/asm/fcx.h
@@ -248,8 +248,8 @@ struct dcw {
 #define TCCB_MAX_SIZE		(sizeof(struct tccb_tcah) + \
 				 TCCB_MAX_DCW * sizeof(struct dcw) + \
 				 sizeof(struct tccb_tcat))
-#define TCCB_SAC_DEFAULT	0xf901
-#define TCCB_SAC_INTRG		0xf902
+#define TCCB_SAC_DEFAULT	0x1ffe
+#define TCCB_SAC_INTRG		0x1fff
 
 /**
  * struct tccb_tcah - Transport-Command-Area Header (TCAH)
diff --git a/arch/s390/include/asm/ftrace.h b/arch/s390/include/asm/ftrace.h
new file mode 100644
index 000000000000..5a5bc75e19d4
--- /dev/null
+++ b/arch/s390/include/asm/ftrace.h
@@ -0,0 +1,8 @@
+#ifndef _ASM_S390_FTRACE_H
+#define _ASM_S390_FTRACE_H
+
+#ifndef __ASSEMBLY__
+extern void _mcount(void);
+#endif
+
+#endif /* _ASM_S390_FTRACE_H */
diff --git a/arch/s390/include/asm/isc.h b/arch/s390/include/asm/isc.h
index 34bb8916db4f..1420a1115948 100644
--- a/arch/s390/include/asm/isc.h
+++ b/arch/s390/include/asm/isc.h
@@ -17,6 +17,7 @@
 #define CHSC_SCH_ISC 7			/* CHSC subchannels */
 /* Adapter interrupts. */
 #define QDIO_AIRQ_ISC IO_SCH_ISC	/* I/O subchannel in qdio mode */
+#define AP_ISC 6			/* adjunct processor (crypto) devices */
 
 /* Functions for registration of I/O interruption subclasses */
 void isc_register(unsigned int isc);
diff --git a/arch/s390/include/asm/kvm_virtio.h b/arch/s390/include/asm/kvm_virtio.h
index c13568b9351c..0503936f101f 100644
--- a/arch/s390/include/asm/kvm_virtio.h
+++ b/arch/s390/include/asm/kvm_virtio.h
@@ -50,6 +50,10 @@ struct kvm_vqconfig {
 #define KVM_S390_VIRTIO_RESET		1
 #define KVM_S390_VIRTIO_SET_STATUS	2
 
+/* The alignment to use between consumer and producer parts of vring.
+ * This is pagesize for historical reasons. */
+#define KVM_S390_VIRTIO_RING_ALIGN	4096
+
 #ifdef __KERNEL__
 /* early virtio console setup */
 #ifdef CONFIG_S390_GUEST
diff --git a/arch/s390/include/asm/mmu.h b/arch/s390/include/asm/mmu.h
index d2b4ff831477..3b59216e6284 100644
--- a/arch/s390/include/asm/mmu.h
+++ b/arch/s390/include/asm/mmu.h
@@ -6,6 +6,7 @@ typedef struct {
 	struct list_head pgtable_list;
 	unsigned long asce_bits;
 	unsigned long asce_limit;
+	unsigned long vdso_base;
 	int noexec;
 	int has_pgste;	 /* The mmu context has extended page tables */
 	int alloc_pgste; /* cloned contexts will have extended page tables */
diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h
index 991ba939408c..32e8f6aa4384 100644
--- a/arch/s390/include/asm/page.h
+++ b/arch/s390/include/asm/page.h
@@ -152,4 +152,6 @@ void arch_alloc_page(struct page *page, int order);
 #include <asm-generic/memory_model.h>
 #include <asm-generic/page.h>
 
+#define __HAVE_ARCH_GATE_AREA 1
+
 #endif /* _S390_PAGE_H */
diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h
index f5b2bf3d7c1d..b2658b9220fe 100644
--- a/arch/s390/include/asm/pgalloc.h
+++ b/arch/s390/include/asm/pgalloc.h
@@ -28,6 +28,8 @@ void disable_noexec(struct mm_struct *, struct task_struct *);
 
 static inline void clear_table(unsigned long *s, unsigned long val, size_t n)
 {
+	typedef struct { char _[n]; } addrtype;
+
 	*s = val;
 	n = (n / 256) - 1;
 	asm volatile(
@@ -39,7 +41,8 @@ static inline void clear_table(unsigned long *s, unsigned long val, size_t n)
 		"0:	mvc	256(256,%0),0(%0)\n"
 		"	la	%0,256(%0)\n"
 		"	brct	%1,0b\n"
-		: "+a" (s), "+d" (n));
+		: "+a" (s), "+d" (n), "=m" (*(addrtype *) s)
+		: "m" (*(addrtype *) s));
 }
 
 static inline void crst_table_init(unsigned long *crst, unsigned long entry)
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index 4af80af2a88f..066b99502e09 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -13,6 +13,7 @@
 #ifndef __ASM_S390_PROCESSOR_H
 #define __ASM_S390_PROCESSOR_H
 
+#include <linux/linkage.h>
 #include <asm/ptrace.h>
 
 #ifdef __KERNEL__
@@ -258,7 +259,7 @@ static inline void enabled_wait(void)
  * Function to drop a processor into disabled wait state
  */
 
-static inline void disabled_wait(unsigned long code)
+static inline void ATTRIB_NORET disabled_wait(unsigned long code)
 {
         unsigned long ctl_buf;
         psw_t dw_psw;
@@ -322,6 +323,7 @@ static inline void disabled_wait(unsigned long code)
 		: "=m" (ctl_buf)
 		: "a" (&dw_psw), "a" (&ctl_buf), "m" (dw_psw) : "cc", "0");
 #endif /* __s390x__ */
+	while (1);
 }
 
 /*
diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h
index 4734c3f05354..27fc1746de15 100644
--- a/arch/s390/include/asm/qdio.h
+++ b/arch/s390/include/asm/qdio.h
@@ -373,16 +373,16 @@ struct qdio_initialize {
 #define QDIO_FLAG_SYNC_OUTPUT		0x02
 #define QDIO_FLAG_PCI_OUT		0x10
 
-extern int qdio_initialize(struct qdio_initialize *init_data);
-extern int qdio_allocate(struct qdio_initialize *init_data);
-extern int qdio_establish(struct qdio_initialize *init_data);
+extern int qdio_initialize(struct qdio_initialize *);
+extern int qdio_allocate(struct qdio_initialize *);
+extern int qdio_establish(struct qdio_initialize *);
 extern int qdio_activate(struct ccw_device *);
 
-extern int do_QDIO(struct ccw_device*, unsigned int flags,
-		   int q_nr, int qidx, int count);
-extern int qdio_cleanup(struct ccw_device*, int how);
-extern int qdio_shutdown(struct ccw_device*, int how);
+extern int do_QDIO(struct ccw_device *cdev, unsigned int callflags,
+		   int q_nr, int bufnr, int count);
+extern int qdio_cleanup(struct ccw_device*, int);
+extern int qdio_shutdown(struct ccw_device*, int);
 extern int qdio_free(struct ccw_device *);
-extern struct qdio_ssqd_desc *qdio_get_ssqd_desc(struct ccw_device *cdev);
+extern int qdio_get_ssqd_desc(struct ccw_device *dev, struct qdio_ssqd_desc*);
 
 #endif /* __QDIO_H__ */
diff --git a/arch/s390/include/asm/sigp.h b/arch/s390/include/asm/sigp.h
index e16d56f8dfe1..ec403d4304f8 100644
--- a/arch/s390/include/asm/sigp.h
+++ b/arch/s390/include/asm/sigp.h
@@ -61,6 +61,7 @@ typedef enum
 {
 	ec_schedule=0,
 	ec_call_function,
+	ec_call_function_single,
 	ec_bit_last
 } ec_bit_sig;
 
diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h
index ae89cf2478fc..024b91e06239 100644
--- a/arch/s390/include/asm/smp.h
+++ b/arch/s390/include/asm/smp.h
@@ -91,8 +91,9 @@ extern int __cpu_up (unsigned int cpu);
 extern struct mutex smp_cpu_state_mutex;
 extern int smp_cpu_polarization[];
 
-extern int smp_call_function_mask(cpumask_t mask, void (*func)(void *),
-	void *info, int wait);
+extern void arch_send_call_function_single_ipi(int cpu);
+extern void arch_send_call_function_ipi(cpumask_t mask);
+
 #endif
 
 #ifndef CONFIG_SMP
diff --git a/arch/s390/include/asm/sysinfo.h b/arch/s390/include/asm/sysinfo.h
index 79d01343f8b0..ad93212d9e16 100644
--- a/arch/s390/include/asm/sysinfo.h
+++ b/arch/s390/include/asm/sysinfo.h
@@ -118,4 +118,15 @@ static inline int stsi(void *sysinfo, int fc, int sel1, int sel2)
 	return r0;
 }
 
+/*
+ * Service level reporting interface.
+ */
+struct service_level {
+	struct list_head list;
+	void (*seq_print)(struct seq_file *, struct service_level *);
+};
+
+int register_service_level(struct service_level *);
+int unregister_service_level(struct service_level *);
+
 #endif /* __ASM_S390_SYSINFO_H */
diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h
index 819e7d99ca0c..024ef42ed6d7 100644
--- a/arch/s390/include/asm/system.h
+++ b/arch/s390/include/asm/system.h
@@ -12,6 +12,7 @@
 #define __ASM_SYSTEM_H
 
 #include <linux/kernel.h>
+#include <linux/errno.h>
 #include <asm/types.h>
 #include <asm/ptrace.h>
 #include <asm/setup.h>
@@ -98,13 +99,9 @@ static inline void restore_access_regs(unsigned int *acrs)
 	prev = __switch_to(prev,next);					     \
 } while (0)
 
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 extern void account_vtime(struct task_struct *);
 extern void account_tick_vtime(struct task_struct *);
 extern void account_system_vtime(struct task_struct *);
-#else
-#define account_vtime(x) do { /* empty */ } while (0)
-#endif
 
 #ifdef CONFIG_PFAULT
 extern void pfault_irq_init(void);
@@ -413,8 +410,6 @@ __set_psw_mask(unsigned long mask)
 #define local_mcck_enable()  __set_psw_mask(psw_kernel_bits)
 #define local_mcck_disable() __set_psw_mask(psw_kernel_bits & ~PSW_MASK_MCHECK)
 
-int stfle(unsigned long long *list, int doublewords);
-
 #ifdef CONFIG_SMP
 
 extern void smp_ctl_set_bit(int cr, int bit);
@@ -438,6 +433,23 @@ static inline unsigned int stfl(void)
 	return S390_lowcore.stfl_fac_list;
 }
 
+static inline int __stfle(unsigned long long *list, int doublewords)
+{
+	typedef struct { unsigned long long _[doublewords]; } addrtype;
+	register unsigned long __nr asm("0") = doublewords - 1;
+
+	asm volatile(".insn s,0xb2b00000,%0" /* stfle */
+		     : "=m" (*(addrtype *) list), "+d" (__nr) : : "cc");
+	return __nr + 1;
+}
+
+static inline int stfle(unsigned long long *list, int doublewords)
+{
+	if (!(stfl() & (1UL << 24)))
+		return -EOPNOTSUPP;
+	return __stfle(list, doublewords);
+}
+
 static inline unsigned short stap(void)
 {
 	unsigned short cpu_address;
diff --git a/arch/s390/include/asm/timer.h b/arch/s390/include/asm/timer.h
index d98d79e35cd6..61705d60f995 100644
--- a/arch/s390/include/asm/timer.h
+++ b/arch/s390/include/asm/timer.h
@@ -48,18 +48,9 @@ extern int del_virt_timer(struct vtimer_list *timer);
 extern void init_cpu_vtimer(void);
 extern void vtime_init(void);
 
-#ifdef CONFIG_VIRT_TIMER
-
 extern void vtime_start_cpu_timer(void);
 extern void vtime_stop_cpu_timer(void);
 
-#else
-
-static inline void vtime_start_cpu_timer(void) { }
-static inline void vtime_stop_cpu_timer(void) { }
-
-#endif /* CONFIG_VIRT_TIMER */
-
 #endif /* __KERNEL__ */
 
 #endif /* _ASM_S390_TIMER_H */
diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h
index d96c91643458..c93eb50e1d09 100644
--- a/arch/s390/include/asm/topology.h
+++ b/arch/s390/include/asm/topology.h
@@ -6,10 +6,12 @@
 #define mc_capable()	(1)
 
 cpumask_t cpu_coregroup_map(unsigned int cpu);
+const struct cpumask *cpu_coregroup_mask(unsigned int cpu);
 
 extern cpumask_t cpu_core_map[NR_CPUS];
 
 #define topology_core_siblings(cpu)	(cpu_core_map[cpu])
+#define topology_core_cpumask(cpu)	(&cpu_core_map[cpu])
 
 int topology_set_cpu_management(int fc);
 void topology_schedule_update(void);
diff --git a/arch/s390/include/asm/vdso.h b/arch/s390/include/asm/vdso.h
new file mode 100644
index 000000000000..a44f4fe16a35
--- /dev/null
+++ b/arch/s390/include/asm/vdso.h
@@ -0,0 +1,39 @@
+#ifndef __S390_VDSO_H__
+#define __S390_VDSO_H__
+
+#ifdef __KERNEL__
+
+/* Default link addresses for the vDSOs */
+#define VDSO32_LBASE	0
+#define VDSO64_LBASE	0
+
+#define VDSO_VERSION_STRING	LINUX_2.6.26
+
+#ifndef __ASSEMBLY__
+
+/*
+ * Note about this structure:
+ *
+ * NEVER USE THIS IN USERSPACE CODE DIRECTLY. The layout of this
+ * structure is supposed to be known only to the function in the vdso
+ * itself and may change without notice.
+ */
+
+struct vdso_data {
+	__u64 tb_update_count;		/* Timebase atomicity ctr	0x00 */
+	__u64 xtime_tod_stamp;		/* TOD clock for xtime		0x08 */
+	__u64 xtime_clock_sec;		/* Kernel time			0x10 */
+	__u64 xtime_clock_nsec;		/*				0x18 */
+	__u64 wtom_clock_sec;		/* Wall to monotonic clock	0x20 */
+	__u64 wtom_clock_nsec;		/*				0x28 */
+	__u32 tz_minuteswest;		/* Minutes west of Greenwich	0x30 */
+	__u32 tz_dsttime;		/* Type of dst correction	0x34 */
+};
+
+extern struct vdso_data *vdso_data;
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __KERNEL__ */
+
+#endif /* __S390_VDSO_H__ */
diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile
index 50f657e77344..3edc6c6f258b 100644
--- a/arch/s390/kernel/Makefile
+++ b/arch/s390/kernel/Makefile
@@ -2,6 +2,11 @@
 # Makefile for the linux kernel.
 #
 
+ifdef CONFIG_FUNCTION_TRACER
+# Do not trace early boot code
+CFLAGS_REMOVE_early.o = -pg
+endif
+
 #
 # Passing null pointers is ok for smp code, since we access the lowcore here.
 #
@@ -12,9 +17,10 @@ CFLAGS_smp.o	:= -Wno-nonnull
 #
 CFLAGS_ptrace.o		+= -DUTS_MACHINE='"$(UTS_MACHINE)"'
 
-obj-y	:=  bitmap.o traps.o time.o process.o base.o early.o \
-            setup.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o \
-	    s390_ext.o debug.o irq.o ipl.o dis.o diag.o mem_detect.o
+obj-y	:=  bitmap.o traps.o time.o process.o base.o early.o setup.o \
+	    processor.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o \
+	    s390_ext.o debug.o irq.o ipl.o dis.o diag.o mem_detect.o \
+	    vdso.o vtime.o
 
 obj-y	+= $(if $(CONFIG_64BIT),entry64.o,entry.o)
 obj-y	+= $(if $(CONFIG_64BIT),reipl64.o,reipl.o)
@@ -30,12 +36,16 @@ obj-$(CONFIG_COMPAT)		+= compat_linux.o compat_signal.o \
 					compat_wrapper.o compat_exec_domain.o \
 					$(compat-obj-y)
 
-obj-$(CONFIG_VIRT_TIMER)	+= vtime.o
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
 obj-$(CONFIG_KPROBES)		+= kprobes.o
+obj-$(CONFIG_FUNCTION_TRACER)	+= mcount.o
 
 # Kexec part
 S390_KEXEC_OBJS := machine_kexec.o crash.o
 S390_KEXEC_OBJS += $(if $(CONFIG_64BIT),relocate_kernel64.o,relocate_kernel.o)
 obj-$(CONFIG_KEXEC) += $(S390_KEXEC_OBJS)
 
+# vdso
+obj-$(CONFIG_64BIT)		+= vdso64/
+obj-$(CONFIG_32BIT)		+= vdso32/
+obj-$(CONFIG_COMPAT)		+= vdso32/
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index 3d144e6020c6..e641f60bac99 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -6,6 +6,7 @@
 
 #include <linux/sched.h>
 #include <linux/kbuild.h>
+#include <asm/vdso.h>
 
 int main(void)
 {
@@ -38,5 +39,19 @@ int main(void)
 	DEFINE(__SF_BACKCHAIN, offsetof(struct stack_frame, back_chain));
 	DEFINE(__SF_GPRS, offsetof(struct stack_frame, gprs));
 	DEFINE(__SF_EMPTY, offsetof(struct stack_frame, empty1));
+	BLANK();
+	/* timeval/timezone offsets for use by vdso */
+	DEFINE(__VDSO_UPD_COUNT, offsetof(struct vdso_data, tb_update_count));
+	DEFINE(__VDSO_XTIME_STAMP, offsetof(struct vdso_data, xtime_tod_stamp));
+	DEFINE(__VDSO_XTIME_SEC, offsetof(struct vdso_data, xtime_clock_sec));
+	DEFINE(__VDSO_XTIME_NSEC, offsetof(struct vdso_data, xtime_clock_nsec));
+	DEFINE(__VDSO_WTOM_SEC, offsetof(struct vdso_data, wtom_clock_sec));
+	DEFINE(__VDSO_WTOM_NSEC, offsetof(struct vdso_data, wtom_clock_nsec));
+	DEFINE(__VDSO_TIMEZONE, offsetof(struct vdso_data, tz_minuteswest));
+	/* constants used by the vdso */
+	DEFINE(CLOCK_REALTIME, CLOCK_REALTIME);
+	DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC);
+	DEFINE(CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC);
+
 	return 0;
 }
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index 4646382af34f..6cc87d8c8682 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -148,9 +148,9 @@ asmlinkage long sys32_getresuid16(u16 __user *ruid, u16 __user *euid, u16 __user
 {
 	int retval;
 
-	if (!(retval = put_user(high2lowuid(current->uid), ruid)) &&
-	    !(retval = put_user(high2lowuid(current->euid), euid)))
-		retval = put_user(high2lowuid(current->suid), suid);
+	if (!(retval = put_user(high2lowuid(current->cred->uid), ruid)) &&
+	    !(retval = put_user(high2lowuid(current->cred->euid), euid)))
+		retval = put_user(high2lowuid(current->cred->suid), suid);
 
 	return retval;
 }
@@ -165,9 +165,9 @@ asmlinkage long sys32_getresgid16(u16 __user *rgid, u16 __user *egid, u16 __user
 {
 	int retval;
 
-	if (!(retval = put_user(high2lowgid(current->gid), rgid)) &&
-	    !(retval = put_user(high2lowgid(current->egid), egid)))
-		retval = put_user(high2lowgid(current->sgid), sgid);
+	if (!(retval = put_user(high2lowgid(current->cred->gid), rgid)) &&
+	    !(retval = put_user(high2lowgid(current->cred->egid), egid)))
+		retval = put_user(high2lowgid(current->cred->sgid), sgid);
 
 	return retval;
 }
@@ -217,20 +217,20 @@ asmlinkage long sys32_getgroups16(int gidsetsize, u16 __user *grouplist)
 	if (gidsetsize < 0)
 		return -EINVAL;
 
-	get_group_info(current->group_info);
-	i = current->group_info->ngroups;
+	get_group_info(current->cred->group_info);
+	i = current->cred->group_info->ngroups;
 	if (gidsetsize) {
 		if (i > gidsetsize) {
 			i = -EINVAL;
 			goto out;
 		}
-		if (groups16_to_user(grouplist, current->group_info)) {
+		if (groups16_to_user(grouplist, current->cred->group_info)) {
 			i = -EFAULT;
 			goto out;
 		}
 	}
 out:
-	put_group_info(current->group_info);
+	put_group_info(current->cred->group_info);
 	return i;
 }
 
@@ -261,22 +261,22 @@ asmlinkage long sys32_setgroups16(int gidsetsize, u16 __user *grouplist)
 
 asmlinkage long sys32_getuid16(void)
 {
-	return high2lowuid(current->uid);
+	return high2lowuid(current->cred->uid);
 }
 
 asmlinkage long sys32_geteuid16(void)
 {
-	return high2lowuid(current->euid);
+	return high2lowuid(current->cred->euid);
 }
 
 asmlinkage long sys32_getgid16(void)
 {
-	return high2lowgid(current->gid);
+	return high2lowgid(current->cred->gid);
 }
 
 asmlinkage long sys32_getegid16(void)
 {
-	return high2lowgid(current->egid);
+	return high2lowgid(current->cred->egid);
 }
 
 /*
diff --git a/arch/s390/kernel/cpcmd.c b/arch/s390/kernel/cpcmd.c
index d8c1131e0815..3e8b8816f309 100644
--- a/arch/s390/kernel/cpcmd.c
+++ b/arch/s390/kernel/cpcmd.c
@@ -7,6 +7,9 @@
  *               Christian Borntraeger (cborntra@de.ibm.com),
  */
 
+#define KMSG_COMPONENT "cpcmd"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/slab.h>
@@ -104,8 +107,8 @@ int cpcmd(const char *cmd, char *response, int rlen, int *response_code)
 			(((unsigned long)response + rlen) >> 31)) {
 		lowbuf = kmalloc(rlen, GFP_KERNEL | GFP_DMA);
 		if (!lowbuf) {
-			printk(KERN_WARNING
-				"cpcmd: could not allocate response buffer\n");
+			pr_warning("The cpcmd kernel function failed to "
+				   "allocate a response buffer\n");
 			return -ENOMEM;
 		}
 		spin_lock_irqsave(&cpcmd_lock, flags);
diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index d80fcd4a7fe1..ba03fc0a3a56 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -10,6 +10,9 @@
  *    Bugreports to: <Linux390@de.ibm.com>
  */
 
+#define KMSG_COMPONENT "s390dbf"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
 #include <linux/stddef.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
@@ -388,7 +391,7 @@ debug_info_copy(debug_info_t* in, int mode)
 		debug_info_free(rc);
 	} while (1);
 
-        if(!rc || (mode == NO_AREAS))
+	if (mode == NO_AREAS)
                 goto out;
 
         for(i = 0; i < in->nr_areas; i++){
@@ -693,8 +696,8 @@ debug_info_t *debug_register_mode(const char *name, int pages_per_area,
 	/* Since debugfs currently does not support uid/gid other than root, */
 	/* we do not allow gid/uid != 0 until we get support for that. */
 	if ((uid != 0) || (gid != 0))
-		printk(KERN_WARNING "debug: Warning - Currently only uid/gid "
-		       "= 0 are supported. Using root as owner now!");
+		pr_warning("Root becomes the owner of all s390dbf files "
+			   "in sysfs\n");
 	if (!initialized)
 		BUG();
 	mutex_lock(&debug_mutex);
@@ -709,7 +712,7 @@ debug_info_t *debug_register_mode(const char *name, int pages_per_area,
 	debug_register_view(rc, &debug_pages_view);
 out:
         if (!rc){
-		printk(KERN_ERR "debug: debug_register failed for %s\n",name);
+		pr_err("Registering debug feature %s failed\n", name);
         }
 	mutex_unlock(&debug_mutex);
 	return rc;
@@ -763,8 +766,8 @@ debug_set_size(debug_info_t* id, int nr_areas, int pages_per_area)
 	if(pages_per_area > 0){
 		new_areas = debug_areas_alloc(pages_per_area, nr_areas);
 		if(!new_areas) {
-			printk(KERN_WARNING "debug: could not allocate memory "\
-					 "for pagenumber: %i\n",pages_per_area);
+			pr_info("Allocating memory for %i pages failed\n",
+				pages_per_area);
 			rc = -ENOMEM;
 			goto out;
 		}
@@ -780,8 +783,7 @@ debug_set_size(debug_info_t* id, int nr_areas, int pages_per_area)
 	memset(id->active_entries,0,sizeof(int)*id->nr_areas);
 	memset(id->active_pages, 0, sizeof(int)*id->nr_areas);
 	spin_unlock_irqrestore(&id->lock,flags);
-	printk(KERN_INFO "debug: %s: set new size (%i pages)\n"\
-			 ,id->name, pages_per_area);
+	pr_info("%s: set new size (%i pages)\n" ,id->name, pages_per_area);
 out:
 	return rc;
 }
@@ -800,10 +802,9 @@ debug_set_level(debug_info_t* id, int new_level)
 	spin_lock_irqsave(&id->lock,flags);
         if(new_level == DEBUG_OFF_LEVEL){
                 id->level = DEBUG_OFF_LEVEL;
-                printk(KERN_INFO "debug: %s: switched off\n",id->name);
+		pr_info("%s: switched off\n",id->name);
         } else if ((new_level > DEBUG_MAX_LEVEL) || (new_level < 0)) {
-                printk(KERN_INFO
-                        "debug: %s: level %i is out of range (%i - %i)\n",
+		pr_info("%s: level %i is out of range (%i - %i)\n",
                         id->name, new_level, 0, DEBUG_MAX_LEVEL);
         } else {
                 id->level = new_level;
@@ -1108,8 +1109,8 @@ debug_register_view(debug_info_t * id, struct debug_view *view)
 	pde = debugfs_create_file(view->name, mode, id->debugfs_root_entry,
 				id , &debug_file_ops);
 	if (!pde){
-		printk(KERN_WARNING "debug: debugfs_create_file() failed!"\
-			" Cannot register view %s/%s\n", id->name,view->name);
+		pr_err("Registering view %s/%s failed due to out of "
+		       "memory\n", id->name,view->name);
 		rc = -1;
 		goto out;
 	}
@@ -1119,10 +1120,8 @@ debug_register_view(debug_info_t * id, struct debug_view *view)
 			break;
 	}
 	if (i == DEBUG_MAX_VIEWS) {
-		printk(KERN_WARNING "debug: cannot register view %s/%s\n",
-			id->name,view->name);
-		printk(KERN_WARNING 
-			"debug: maximum number of views reached (%i)!\n", i);
+		pr_err("Registering view %s/%s would exceed the maximum "
+		       "number of views %i\n", id->name, view->name, i);
 		debugfs_remove(pde);
 		rc = -1;
 	} else {
@@ -1303,7 +1302,8 @@ debug_input_level_fn(debug_info_t * id, struct debug_view *view,
 		new_level = debug_get_uint(str);
 	}
 	if(new_level < 0) {
-		printk(KERN_INFO "debug: level `%s` is not valid\n", str);
+		pr_warning("%s is not a valid level for a debug "
+			   "feature\n", str);
 		rc = -EINVAL;
 	} else {
 		debug_set_level(id, new_level);
@@ -1380,7 +1380,8 @@ debug_input_flush_fn(debug_info_t * id, struct debug_view *view,
                 goto out;
         }
 
-        printk(KERN_INFO "debug: area `%c` is not valid\n", input_buf[0]);
+	pr_info("Flushing debug data failed because %c is not a valid "
+		 "area\n", input_buf[0]);
 
 out:
         *offset += user_len;
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 198ea18a534d..55de521aef77 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -109,13 +109,6 @@ STACK_SIZE  = 1 << STACK_SHIFT
  *    R15 - kernel stack pointer
  */
 
-	.macro	STORE_TIMER lc_offset
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
-	stpt	\lc_offset
-#endif
-	.endm
-
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	.macro	UPDATE_VTIME lc_from,lc_to,lc_sum
 	lm	%r10,%r11,\lc_from
 	sl	%r10,\lc_to
@@ -128,7 +121,6 @@ STACK_SIZE  = 1 << STACK_SHIFT
 	al	%r10,BASED(.Lc_1)
 1:	stm	%r10,%r11,\lc_sum
 	.endm
-#endif
 
 	.macro	SAVE_ALL_BASE savearea
 	stm	%r12,%r15,\savearea
@@ -198,7 +190,7 @@ STACK_SIZE  = 1 << STACK_SHIFT
 	ni	\psworg+1,0xfd		# clear wait state bit
 	.endif
 	lm	%r0,%r15,SP_R0(%r15)	# load gprs 0-15 of user
-	STORE_TIMER __LC_EXIT_TIMER
+	stpt	__LC_EXIT_TIMER
 	lpsw	\psworg			# back to caller
 	.endm
 
@@ -247,20 +239,18 @@ __critical_start:
 
 	.globl	system_call
 system_call:
-	STORE_TIMER __LC_SYNC_ENTER_TIMER
+	stpt	__LC_SYNC_ENTER_TIMER
 sysc_saveall:
 	SAVE_ALL_BASE __LC_SAVE_AREA
 	SAVE_ALL_SVC __LC_SVC_OLD_PSW,__LC_SAVE_AREA
 	CREATE_STACK_FRAME __LC_SVC_OLD_PSW,__LC_SAVE_AREA
 	lh	%r7,0x8a	  # get svc number from lowcore
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 sysc_vtime:
 	UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
 sysc_stime:
 	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
 sysc_update:
 	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
-#endif
 sysc_do_svc:
 	l	%r9,__LC_THREAD_INFO	# load pointer to thread_info struct
 	ltr	%r7,%r7			# test for svc 0
@@ -436,7 +426,7 @@ ret_from_fork:
 	basr	%r14,%r1
 	TRACE_IRQS_ON
 	stosm	__SF_EMPTY(%r15),0x03	# reenable interrupts
-	b	BASED(sysc_return)
+	b	BASED(sysc_tracenogo)
 
 #
 # kernel_execve function needs to deal with pt_regs that is not
@@ -490,20 +480,18 @@ pgm_check_handler:
  * we just ignore the PER event (FIXME: is there anything we have to do
  * for LPSW?).
  */
-	STORE_TIMER __LC_SYNC_ENTER_TIMER
+	stpt	__LC_SYNC_ENTER_TIMER
 	SAVE_ALL_BASE __LC_SAVE_AREA
 	tm	__LC_PGM_INT_CODE+1,0x80 # check whether we got a per exception
 	bnz	BASED(pgm_per)		# got per exception -> special case
 	SAVE_ALL_SYNC __LC_PGM_OLD_PSW,__LC_SAVE_AREA
 	CREATE_STACK_FRAME __LC_PGM_OLD_PSW,__LC_SAVE_AREA
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	tm	SP_PSW+1(%r15),0x01	# interrupting from user ?
 	bz	BASED(pgm_no_vtime)
 	UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
 	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
 	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
 pgm_no_vtime:
-#endif
 	l	%r9,__LC_THREAD_INFO	# load pointer to thread_info struct
 	TRACE_IRQS_OFF
 	l	%r3,__LC_PGM_ILC	# load program interruption code
@@ -536,14 +524,12 @@ pgm_per:
 pgm_per_std:
 	SAVE_ALL_SYNC __LC_PGM_OLD_PSW,__LC_SAVE_AREA
 	CREATE_STACK_FRAME __LC_PGM_OLD_PSW,__LC_SAVE_AREA
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	tm	SP_PSW+1(%r15),0x01	# interrupting from user ?
 	bz	BASED(pgm_no_vtime2)
 	UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
 	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
 	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
 pgm_no_vtime2:
-#endif
 	l	%r9,__LC_THREAD_INFO	# load pointer to thread_info struct
 	TRACE_IRQS_OFF
 	l	%r1,__TI_task(%r9)
@@ -565,11 +551,9 @@ pgm_no_vtime2:
 pgm_svcper:
 	SAVE_ALL_SYNC __LC_SVC_OLD_PSW,__LC_SAVE_AREA
 	CREATE_STACK_FRAME __LC_SVC_OLD_PSW,__LC_SAVE_AREA
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
 	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
 	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
-#endif
 	lh	%r7,0x8a		# get svc number from lowcore
 	l	%r9,__LC_THREAD_INFO	# load pointer to thread_info struct
 	TRACE_IRQS_OFF
@@ -599,19 +583,17 @@ kernel_per:
 
 	.globl io_int_handler
 io_int_handler:
-	STORE_TIMER __LC_ASYNC_ENTER_TIMER
+	stpt	__LC_ASYNC_ENTER_TIMER
 	stck	__LC_INT_CLOCK
 	SAVE_ALL_BASE __LC_SAVE_AREA+16
 	SAVE_ALL_ASYNC __LC_IO_OLD_PSW,__LC_SAVE_AREA+16
 	CREATE_STACK_FRAME __LC_IO_OLD_PSW,__LC_SAVE_AREA+16
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	tm	SP_PSW+1(%r15),0x01	# interrupting from user ?
 	bz	BASED(io_no_vtime)
 	UPDATE_VTIME __LC_EXIT_TIMER,__LC_ASYNC_ENTER_TIMER,__LC_USER_TIMER
 	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
 	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
 io_no_vtime:
-#endif
 	l	%r9,__LC_THREAD_INFO	# load pointer to thread_info struct
 	TRACE_IRQS_OFF
 	l	%r1,BASED(.Ldo_IRQ)	# load address of do_IRQ
@@ -741,19 +723,17 @@ io_notify_resume:
 
 	.globl	ext_int_handler
 ext_int_handler:
-	STORE_TIMER __LC_ASYNC_ENTER_TIMER
+	stpt	__LC_ASYNC_ENTER_TIMER
 	stck	__LC_INT_CLOCK
 	SAVE_ALL_BASE __LC_SAVE_AREA+16
 	SAVE_ALL_ASYNC __LC_EXT_OLD_PSW,__LC_SAVE_AREA+16
 	CREATE_STACK_FRAME __LC_EXT_OLD_PSW,__LC_SAVE_AREA+16
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	tm	SP_PSW+1(%r15),0x01	# interrupting from user ?
 	bz	BASED(ext_no_vtime)
 	UPDATE_VTIME __LC_EXIT_TIMER,__LC_ASYNC_ENTER_TIMER,__LC_USER_TIMER
 	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
 	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
 ext_no_vtime:
-#endif
 	l	%r9,__LC_THREAD_INFO	# load pointer to thread_info struct
 	TRACE_IRQS_OFF
 	la	%r2,SP_PTREGS(%r15)	# address of register-save area
@@ -776,7 +756,6 @@ mcck_int_handler:
 	la	%r12,__LC_MCK_OLD_PSW
 	tm	__LC_MCCK_CODE,0x80	# system damage?
 	bo	BASED(mcck_int_main)	# yes -> rest of mcck code invalid
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	mvc	__LC_SAVE_AREA+52(8),__LC_ASYNC_ENTER_TIMER
 	mvc	__LC_ASYNC_ENTER_TIMER(8),__LC_CPU_TIMER_SAVE_AREA
 	tm	__LC_MCCK_CODE+5,0x02	# stored cpu timer value valid?
@@ -793,9 +772,7 @@ mcck_int_handler:
 	la	%r14,__LC_LAST_UPDATE_TIMER
 0:	spt	0(%r14)
 	mvc	__LC_ASYNC_ENTER_TIMER(8),0(%r14)
-1:
-#endif
-	tm	__LC_MCCK_CODE+2,0x09	# mwp + ia of old psw valid?
+1:	tm	__LC_MCCK_CODE+2,0x09	# mwp + ia of old psw valid?
 	bno	BASED(mcck_int_main)	# no -> skip cleanup critical
 	tm	__LC_MCK_OLD_PSW+1,0x01	# test problem state bit
 	bnz	BASED(mcck_int_main)	# from user -> load async stack
@@ -812,7 +789,6 @@ mcck_int_main:
 	be	BASED(0f)
 	l	%r15,__LC_PANIC_STACK	# load panic stack
 0:	CREATE_STACK_FRAME __LC_MCK_OLD_PSW,__LC_SAVE_AREA+32
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	tm	__LC_MCCK_CODE+2,0x08	# mwp of old psw valid?
 	bno	BASED(mcck_no_vtime)	# no -> skip cleanup critical
 	tm	SP_PSW+1(%r15),0x01	# interrupting from user ?
@@ -821,7 +797,6 @@ mcck_int_main:
 	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
 	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
 mcck_no_vtime:
-#endif
 	l	%r9,__LC_THREAD_INFO	# load pointer to thread_info struct
 	la	%r2,SP_PTREGS(%r15)	# load pt_regs
 	l	%r1,BASED(.Ls390_mcck)
@@ -843,16 +818,13 @@ mcck_no_vtime:
 mcck_return:
 	mvc	__LC_RETURN_MCCK_PSW(8),SP_PSW(%r15) # move return PSW
 	ni	__LC_RETURN_MCCK_PSW+1,0xfd # clear wait state bit
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	mvc	__LC_ASYNC_ENTER_TIMER(8),__LC_SAVE_AREA+52
 	tm	__LC_RETURN_MCCK_PSW+1,0x01 # returning to user ?
 	bno	BASED(0f)
 	lm	%r0,%r15,SP_R0(%r15)	# load gprs 0-15
 	stpt	__LC_EXIT_TIMER
 	lpsw	__LC_RETURN_MCCK_PSW	# back to caller
-0:
-#endif
-	lm	%r0,%r15,SP_R0(%r15)	# load gprs 0-15
+0:	lm	%r0,%r15,SP_R0(%r15)	# load gprs 0-15
 	lpsw	__LC_RETURN_MCCK_PSW	# back to caller
 
 	RESTORE_ALL __LC_RETURN_MCCK_PSW,0
@@ -976,13 +948,11 @@ cleanup_system_call:
 	b	BASED(1f)
 0:	la	%r12,__LC_SAVE_AREA+32
 1:
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	clc	__LC_RETURN_PSW+4(4),BASED(cleanup_system_call_insn+4)
 	bh	BASED(0f)
 	mvc	__LC_SYNC_ENTER_TIMER(8),__LC_ASYNC_ENTER_TIMER
 0:	clc	__LC_RETURN_PSW+4(4),BASED(cleanup_system_call_insn+8)
 	bhe	BASED(cleanup_vtime)
-#endif
 	clc	__LC_RETURN_PSW+4(4),BASED(cleanup_system_call_insn)
 	bh	BASED(0f)
 	mvc	__LC_SAVE_AREA(16),0(%r12)
@@ -993,7 +963,6 @@ cleanup_system_call:
 	l	%r12,__LC_SAVE_AREA+48	# argh
 	st	%r15,12(%r12)
 	lh	%r7,0x8a
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 cleanup_vtime:
 	clc	__LC_RETURN_PSW+4(4),BASED(cleanup_system_call_insn+12)
 	bhe	BASED(cleanup_stime)
@@ -1004,18 +973,15 @@ cleanup_stime:
 	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
 cleanup_update:
 	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
-#endif
 	mvc	__LC_RETURN_PSW+4(4),BASED(cleanup_table_system_call+4)
 	la	%r12,__LC_RETURN_PSW
 	br	%r14
 cleanup_system_call_insn:
 	.long	sysc_saveall + 0x80000000
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	.long	system_call + 0x80000000
 	.long	sysc_vtime + 0x80000000
 	.long	sysc_stime + 0x80000000
 	.long	sysc_update + 0x80000000
-#endif
 
 cleanup_sysc_return:
 	mvc	__LC_RETURN_PSW(4),0(%r12)
@@ -1026,11 +992,9 @@ cleanup_sysc_return:
 cleanup_sysc_leave:
 	clc	4(4,%r12),BASED(cleanup_sysc_leave_insn)
 	be	BASED(2f)
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	mvc	__LC_EXIT_TIMER(8),__LC_ASYNC_ENTER_TIMER
 	clc	4(4,%r12),BASED(cleanup_sysc_leave_insn+4)
 	be	BASED(2f)
-#endif
 	mvc	__LC_RETURN_PSW(8),SP_PSW(%r15)
 	c	%r12,BASED(.Lmck_old_psw)
 	bne	BASED(0f)
@@ -1043,9 +1007,7 @@ cleanup_sysc_leave:
 	br	%r14
 cleanup_sysc_leave_insn:
 	.long	sysc_done - 4 + 0x80000000
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	.long	sysc_done - 8 + 0x80000000
-#endif
 
 cleanup_io_return:
 	mvc	__LC_RETURN_PSW(4),0(%r12)
@@ -1056,11 +1018,9 @@ cleanup_io_return:
 cleanup_io_leave:
 	clc	4(4,%r12),BASED(cleanup_io_leave_insn)
 	be	BASED(2f)
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	mvc	__LC_EXIT_TIMER(8),__LC_ASYNC_ENTER_TIMER
 	clc	4(4,%r12),BASED(cleanup_io_leave_insn+4)
 	be	BASED(2f)
-#endif
 	mvc	__LC_RETURN_PSW(8),SP_PSW(%r15)
 	c	%r12,BASED(.Lmck_old_psw)
 	bne	BASED(0f)
@@ -1073,9 +1033,7 @@ cleanup_io_leave:
 	br	%r14
 cleanup_io_leave_insn:
 	.long	io_done - 4 + 0x80000000
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	.long	io_done - 8 + 0x80000000
-#endif
 
 /*
  * Integer constants
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index 89c121ae6339..16bb4fd1a403 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -96,20 +96,12 @@ _TIF_WORK_INT = (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | _TIF_NEED_RESCHED | \
 #define LOCKDEP_SYS_EXIT
 #endif
 
-	.macro	STORE_TIMER lc_offset
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
-	stpt	\lc_offset
-#endif
-	.endm
-
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	.macro	UPDATE_VTIME lc_from,lc_to,lc_sum
 	lg	%r10,\lc_from
 	slg	%r10,\lc_to
 	alg	%r10,\lc_sum
 	stg	%r10,\lc_sum
 	.endm
-#endif
 
 /*
  * Register usage in interrupt handlers:
@@ -186,7 +178,7 @@ _TIF_WORK_INT = (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | _TIF_NEED_RESCHED | \
 	ni	\psworg+1,0xfd		# clear wait state bit
 	.endif
 	lmg	%r0,%r15,SP_R0(%r15)	# load gprs 0-15 of user
-	STORE_TIMER __LC_EXIT_TIMER
+	stpt	__LC_EXIT_TIMER
 	lpswe	\psworg			# back to caller
 	.endm
 
@@ -233,20 +225,18 @@ __critical_start:
 
 	.globl	system_call
 system_call:
-	STORE_TIMER __LC_SYNC_ENTER_TIMER
+	stpt	__LC_SYNC_ENTER_TIMER
 sysc_saveall:
 	SAVE_ALL_BASE __LC_SAVE_AREA
 	SAVE_ALL_SVC __LC_SVC_OLD_PSW,__LC_SAVE_AREA
 	CREATE_STACK_FRAME __LC_SVC_OLD_PSW,__LC_SAVE_AREA
 	llgh	%r7,__LC_SVC_INT_CODE	# get svc number from lowcore
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 sysc_vtime:
 	UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
 sysc_stime:
 	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
 sysc_update:
 	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
-#endif
 sysc_do_svc:
 	lg	%r9,__LC_THREAD_INFO	# load pointer to thread_info struct
 	ltgr	%r7,%r7		# test for svc 0
@@ -417,7 +407,7 @@ ret_from_fork:
 0:	brasl	%r14,schedule_tail
 	TRACE_IRQS_ON
 	stosm	24(%r15),0x03		# reenable interrupts
-	j	sysc_return
+	j	sysc_tracenogo
 
 #
 # kernel_execve function needs to deal with pt_regs that is not
@@ -469,20 +459,18 @@ pgm_check_handler:
  * we just ignore the PER event (FIXME: is there anything we have to do
  * for LPSW?).
  */
-	STORE_TIMER __LC_SYNC_ENTER_TIMER
+	stpt	__LC_SYNC_ENTER_TIMER
 	SAVE_ALL_BASE __LC_SAVE_AREA
 	tm	__LC_PGM_INT_CODE+1,0x80 # check whether we got a per exception
 	jnz	pgm_per 		 # got per exception -> special case
 	SAVE_ALL_SYNC __LC_PGM_OLD_PSW,__LC_SAVE_AREA
 	CREATE_STACK_FRAME __LC_PGM_OLD_PSW,__LC_SAVE_AREA
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	tm	SP_PSW+1(%r15),0x01	# interrupting from user ?
 	jz	pgm_no_vtime
 	UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
 	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
 	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
 pgm_no_vtime:
-#endif
 	lg	%r9,__LC_THREAD_INFO	# load pointer to thread_info struct
 	mvc	SP_ARGS(8,%r15),__LC_LAST_BREAK
 	TRACE_IRQS_OFF
@@ -516,14 +504,12 @@ pgm_per:
 pgm_per_std:
 	SAVE_ALL_SYNC __LC_PGM_OLD_PSW,__LC_SAVE_AREA
 	CREATE_STACK_FRAME __LC_PGM_OLD_PSW,__LC_SAVE_AREA
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	tm	SP_PSW+1(%r15),0x01	# interrupting from user ?
 	jz	pgm_no_vtime2
 	UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
 	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
 	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
 pgm_no_vtime2:
-#endif
 	lg	%r9,__LC_THREAD_INFO	# load pointer to thread_info struct
 	TRACE_IRQS_OFF
 	lg	%r1,__TI_task(%r9)
@@ -545,11 +531,9 @@ pgm_no_vtime2:
 pgm_svcper:
 	SAVE_ALL_SYNC __LC_SVC_OLD_PSW,__LC_SAVE_AREA
 	CREATE_STACK_FRAME __LC_SVC_OLD_PSW,__LC_SAVE_AREA
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
 	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
 	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
-#endif
 	llgh	%r7,__LC_SVC_INT_CODE	# get svc number from lowcore
 	lg	%r9,__LC_THREAD_INFO	# load pointer to thread_info struct
 	lg	%r1,__TI_task(%r9)
@@ -575,19 +559,17 @@ kernel_per:
  */
 	.globl io_int_handler
 io_int_handler:
-	STORE_TIMER __LC_ASYNC_ENTER_TIMER
+	stpt	__LC_ASYNC_ENTER_TIMER
 	stck	__LC_INT_CLOCK
 	SAVE_ALL_BASE __LC_SAVE_AREA+32
 	SAVE_ALL_ASYNC __LC_IO_OLD_PSW,__LC_SAVE_AREA+32
 	CREATE_STACK_FRAME __LC_IO_OLD_PSW,__LC_SAVE_AREA+32
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	tm	SP_PSW+1(%r15),0x01	# interrupting from user ?
 	jz	io_no_vtime
 	UPDATE_VTIME __LC_EXIT_TIMER,__LC_ASYNC_ENTER_TIMER,__LC_USER_TIMER
 	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
 	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
 io_no_vtime:
-#endif
 	lg	%r9,__LC_THREAD_INFO	# load pointer to thread_info struct
 	TRACE_IRQS_OFF
 	la	%r2,SP_PTREGS(%r15)	# address of register-save area
@@ -739,19 +721,17 @@ io_notify_resume:
  */
 	.globl	ext_int_handler
 ext_int_handler:
-	STORE_TIMER __LC_ASYNC_ENTER_TIMER
+	stpt	__LC_ASYNC_ENTER_TIMER
 	stck	__LC_INT_CLOCK
 	SAVE_ALL_BASE __LC_SAVE_AREA+32
 	SAVE_ALL_ASYNC __LC_EXT_OLD_PSW,__LC_SAVE_AREA+32
 	CREATE_STACK_FRAME __LC_EXT_OLD_PSW,__LC_SAVE_AREA+32
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	tm	SP_PSW+1(%r15),0x01	# interrupting from user ?
 	jz	ext_no_vtime
 	UPDATE_VTIME __LC_EXIT_TIMER,__LC_ASYNC_ENTER_TIMER,__LC_USER_TIMER
 	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
 	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
 ext_no_vtime:
-#endif
 	lg	%r9,__LC_THREAD_INFO	# load pointer to thread_info struct
 	TRACE_IRQS_OFF
 	la	%r2,SP_PTREGS(%r15)	# address of register-save area
@@ -773,7 +753,6 @@ mcck_int_handler:
 	la	%r12,__LC_MCK_OLD_PSW
 	tm	__LC_MCCK_CODE,0x80	# system damage?
 	jo	mcck_int_main		# yes -> rest of mcck code invalid
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	la	%r14,4095
 	mvc	__LC_SAVE_AREA+104(8),__LC_ASYNC_ENTER_TIMER
 	mvc	__LC_ASYNC_ENTER_TIMER(8),__LC_CPU_TIMER_SAVE_AREA-4095(%r14)
@@ -791,9 +770,7 @@ mcck_int_handler:
 	la	%r14,__LC_LAST_UPDATE_TIMER
 0:	spt	0(%r14)
 	mvc	__LC_ASYNC_ENTER_TIMER(8),0(%r14)
-1:
-#endif
-	tm	__LC_MCCK_CODE+2,0x09	# mwp + ia of old psw valid?
+1:	tm	__LC_MCCK_CODE+2,0x09	# mwp + ia of old psw valid?
 	jno	mcck_int_main		# no -> skip cleanup critical
 	tm	__LC_MCK_OLD_PSW+1,0x01 # test problem state bit
 	jnz	mcck_int_main		# from user -> load kernel stack
@@ -809,7 +786,6 @@ mcck_int_main:
 	jz	0f
 	lg	%r15,__LC_PANIC_STACK	# load panic stack
 0:	CREATE_STACK_FRAME __LC_MCK_OLD_PSW,__LC_SAVE_AREA+64
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	tm	__LC_MCCK_CODE+2,0x08	# mwp of old psw valid?
 	jno	mcck_no_vtime		# no -> no timer update
 	tm	SP_PSW+1(%r15),0x01	# interrupting from user ?
@@ -818,7 +794,6 @@ mcck_int_main:
 	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
 	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
 mcck_no_vtime:
-#endif
 	lg	%r9,__LC_THREAD_INFO	# load pointer to thread_info struct
 	la	%r2,SP_PTREGS(%r15)	# load pt_regs
 	brasl	%r14,s390_do_machine_check
@@ -839,14 +814,11 @@ mcck_return:
 	mvc	__LC_RETURN_MCCK_PSW(16),SP_PSW(%r15) # move return PSW
 	ni	__LC_RETURN_MCCK_PSW+1,0xfd # clear wait state bit
 	lmg	%r0,%r15,SP_R0(%r15)	# load gprs 0-15
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	mvc	__LC_ASYNC_ENTER_TIMER(8),__LC_SAVE_AREA+104
 	tm	__LC_RETURN_MCCK_PSW+1,0x01 # returning to user ?
 	jno	0f
 	stpt	__LC_EXIT_TIMER
-0:
-#endif
-	lpswe	__LC_RETURN_MCCK_PSW	# back to caller
+0:	lpswe	__LC_RETURN_MCCK_PSW	# back to caller
 
 /*
  * Restart interruption handler, kick starter for additional CPUs
@@ -964,13 +936,11 @@ cleanup_system_call:
 	j	1f
 0:	la	%r12,__LC_SAVE_AREA+64
 1:
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	clc	__LC_RETURN_PSW+8(8),BASED(cleanup_system_call_insn+8)
 	jh	0f
 	mvc	__LC_SYNC_ENTER_TIMER(8),__LC_ASYNC_ENTER_TIMER
 0:	clc	__LC_RETURN_PSW+8(8),BASED(cleanup_system_call_insn+16)
 	jhe	cleanup_vtime
-#endif
 	clc	__LC_RETURN_PSW+8(8),BASED(cleanup_system_call_insn)
 	jh	0f
 	mvc	__LC_SAVE_AREA(32),0(%r12)
@@ -981,7 +951,6 @@ cleanup_system_call:
 	lg	%r12,__LC_SAVE_AREA+96	# argh
 	stg	%r15,24(%r12)
 	llgh	%r7,__LC_SVC_INT_CODE
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 cleanup_vtime:
 	clc	__LC_RETURN_PSW+8(8),BASED(cleanup_system_call_insn+24)
 	jhe	cleanup_stime
@@ -992,18 +961,15 @@ cleanup_stime:
 	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
 cleanup_update:
 	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
-#endif
 	mvc	__LC_RETURN_PSW+8(8),BASED(cleanup_table_system_call+8)
 	la	%r12,__LC_RETURN_PSW
 	br	%r14
 cleanup_system_call_insn:
 	.quad	sysc_saveall
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	.quad	system_call
 	.quad	sysc_vtime
 	.quad	sysc_stime
 	.quad	sysc_update
-#endif
 
 cleanup_sysc_return:
 	mvc	__LC_RETURN_PSW(8),0(%r12)
@@ -1014,11 +980,9 @@ cleanup_sysc_return:
 cleanup_sysc_leave:
 	clc	8(8,%r12),BASED(cleanup_sysc_leave_insn)
 	je	2f
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	mvc	__LC_EXIT_TIMER(8),__LC_ASYNC_ENTER_TIMER
 	clc	8(8,%r12),BASED(cleanup_sysc_leave_insn+8)
 	je	2f
-#endif
 	mvc	__LC_RETURN_PSW(16),SP_PSW(%r15)
 	cghi	%r12,__LC_MCK_OLD_PSW
 	jne	0f
@@ -1031,9 +995,7 @@ cleanup_sysc_leave:
 	br	%r14
 cleanup_sysc_leave_insn:
 	.quad	sysc_done - 4
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	.quad	sysc_done - 8
-#endif
 
 cleanup_io_return:
 	mvc	__LC_RETURN_PSW(8),0(%r12)
@@ -1044,11 +1006,9 @@ cleanup_io_return:
 cleanup_io_leave:
 	clc	8(8,%r12),BASED(cleanup_io_leave_insn)
 	je	2f
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	mvc	__LC_EXIT_TIMER(8),__LC_ASYNC_ENTER_TIMER
 	clc	8(8,%r12),BASED(cleanup_io_leave_insn+8)
 	je	2f
-#endif
 	mvc	__LC_RETURN_PSW(16),SP_PSW(%r15)
 	cghi	%r12,__LC_MCK_OLD_PSW
 	jne	0f
@@ -1061,9 +1021,7 @@ cleanup_io_leave:
 	br	%r14
 cleanup_io_leave_insn:
 	.quad	io_done - 4
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	.quad	io_done - 8
-#endif
 
 /*
  * Integer constants
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S
index 83477c7dc743..ec7e35f6055b 100644
--- a/arch/s390/kernel/head.S
+++ b/arch/s390/kernel/head.S
@@ -461,6 +461,55 @@ start:
 	.byte 0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7
 	.byte 0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,0xfe,0xff
 
+#
+# startup-code at 0x10000, running in absolute addressing mode
+# this is called either by the ipl loader or directly by PSW restart
+# or linload or SALIPL
+#
+	.org	0x10000
+startup:basr	%r13,0			# get base
+.LPG0:
+
+#ifndef CONFIG_MARCH_G5
+	# check processor version against MARCH_{G5,Z900,Z990,Z9_109,Z10}
+	stidp	__LC_CPUID		# store cpuid
+	lhi	%r0,(3f-2f) / 2
+	la	%r1,2f-.LPG0(%r13)
+0:	clc	__LC_CPUID+4(2),0(%r1)
+	jne	3f
+	lpsw	1f-.LPG0(13)		# machine type not good enough, crash
+	.align 16
+1:	.long	0x000a0000,0x00000000
+2:
+#if defined(CONFIG_MARCH_Z10)
+	.short 0x9672, 0x2064, 0x2066, 0x2084, 0x2086, 0x2094, 0x2096
+#elif defined(CONFIG_MARCH_Z9_109)
+	.short 0x9672, 0x2064, 0x2066, 0x2084, 0x2086
+#elif defined(CONFIG_MARCH_Z990)
+	.short 0x9672, 0x2064, 0x2066
+#elif defined(CONFIG_MARCH_Z900)
+	.short 0x9672
+#endif
+3:	la	%r1,2(%r1)
+	brct	%r0,0b
+#endif
+
+	l	%r13,0f-.LPG0(%r13)
+	b	0(%r13)
+0:	.long	startup_continue
+
+#
+# params at 10400 (setup.h)
+#
+	.org	PARMAREA
+	.long	0,0			# IPL_DEVICE
+	.long	0,0			# INITRD_START
+	.long	0,0			# INITRD_SIZE
+
+	.org	COMMAND_LINE
+	.byte	"root=/dev/ram0 ro"
+	.byte	0
+
 #ifdef CONFIG_64BIT
 #include "head64.S"
 #else
diff --git a/arch/s390/kernel/head31.S b/arch/s390/kernel/head31.S
index a816e2de32b9..db476d114caa 100644
--- a/arch/s390/kernel/head31.S
+++ b/arch/s390/kernel/head31.S
@@ -10,34 +10,13 @@
  *
  */
 
-#
-# startup-code at 0x10000, running in absolute addressing mode
-# this is called either by the ipl loader or directly by PSW restart
-# or linload or SALIPL
-#
-	.org	0x10000
-startup:basr	%r13,0			# get base
-.LPG0:	l	%r13,0f-.LPG0(%r13)
-	b	0(%r13)
-0:	.long	startup_continue
-
-#
-# params at 10400 (setup.h)
-#
-	.org	PARMAREA
-	.long	0,0			# IPL_DEVICE
-	.long	0,0			# INITRD_START
-	.long	0,0			# INITRD_SIZE
-
-	.org	COMMAND_LINE
-	.byte	"root=/dev/ram0 ro"
-	.byte	0
-
 	.org	0x11000
 
 startup_continue:
 	basr	%r13,0			# get base
-.LPG1:	mvi	__LC_AR_MODE_ID,0	# set ESA flag (mode 0)
+.LPG1:
+
+	mvi	__LC_AR_MODE_ID,0	# set ESA flag (mode 0)
 	lctl	%c0,%c15,.Lctl-.LPG1(%r13) # load control registers
 	l	%r12,.Lparmaddr-.LPG1(%r13) # pointer to parameter area
 					# move IPL device to lowcore
@@ -50,7 +29,6 @@ startup_continue:
 	ahi	%r15,1<<(PAGE_SHIFT+THREAD_ORDER) # init_task_union+THREAD_SIZE
 	st	%r15,__LC_KERNEL_STACK	# set end of kernel stack
 	ahi	%r15,-96
-	xc	__SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15) # clear backchain
 #
 # Save ipl parameters, clear bss memory, initialize storage key for kernel pages,
 # and create a kernel NSS if the SAVESYS= parm is defined
diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S
index 1d06961e87b3..3ccd36b24b8f 100644
--- a/arch/s390/kernel/head64.S
+++ b/arch/s390/kernel/head64.S
@@ -10,29 +10,6 @@
  *
  */
 
-#
-# startup-code at 0x10000, running in absolute addressing mode
-# this is called either by the ipl loader or directly by PSW restart
-# or linload or SALIPL
-#
-	.org	0x10000
-startup:basr	%r13,0			# get base
-.LPG0:	l	%r13,0f-.LPG0(%r13)
-	b	0(%r13)
-0:	.long	startup_continue
-
-#
-# params at 10400 (setup.h)
-#
-	.org	PARMAREA
-	.quad	0			# IPL_DEVICE
-	.quad	0			# INITRD_START
-	.quad	0			# INITRD_SIZE
-
-	.org	COMMAND_LINE
-	.byte	"root=/dev/ram0 ro"
-	.byte	0
-
 	.org	0x11000
 
 startup_continue:
@@ -119,7 +96,6 @@ startup_continue:
 	aghi	%r15,1<<(PAGE_SHIFT+THREAD_ORDER) # init_task_union + THREAD_SIZE
 	stg	%r15,__LC_KERNEL_STACK	# set end of kernel stack
 	aghi	%r15,-160
-	xc	__SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15) # clear backchain
 #
 # Save ipl parameters, clear bss memory, initialize storage key for kernel pages,
 # and create a kernel NSS if the SAVESYS= parm is defined
diff --git a/arch/s390/kernel/mcount.S b/arch/s390/kernel/mcount.S
new file mode 100644
index 000000000000..397d131a345f
--- /dev/null
+++ b/arch/s390/kernel/mcount.S
@@ -0,0 +1,56 @@
+/*
+ * Copyright IBM Corp. 2008
+ *
+ *   Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>,
+ *
+ */
+
+#ifndef CONFIG_64BIT
+.globl _mcount
+_mcount:
+	stm	%r0,%r5,8(%r15)
+	st	%r14,56(%r15)
+	lr	%r1,%r15
+	ahi	%r15,-96
+	l	%r3,100(%r15)
+	la	%r2,0(%r14)
+	st	%r1,0(%r15)
+	la	%r3,0(%r3)
+	bras	%r14,0f
+	.long	ftrace_trace_function
+0:	l	%r14,0(%r14)
+	l	%r14,0(%r14)
+	basr	%r14,%r14
+	ahi	%r15,96
+	lm	%r0,%r5,8(%r15)
+	l	%r14,56(%r15)
+	br	%r14
+
+.globl ftrace_stub
+ftrace_stub:
+	br	%r14
+
+#else /* CONFIG_64BIT */
+
+.globl _mcount
+_mcount:
+	stmg	%r0,%r5,16(%r15)
+	stg	%r14,112(%r15)
+	lgr	%r1,%r15
+	aghi	%r15,-160
+	stg	%r1,0(%r15)
+	lgr	%r2,%r14
+	lg	%r3,168(%r15)
+	larl	%r14,ftrace_trace_function
+	lg	%r14,0(%r14)
+	basr	%r14,%r14
+	aghi	%r15,160
+	lmg	%r0,%r5,16(%r15)
+	lg	%r14,112(%r15)
+	br	%r14
+
+.globl ftrace_stub
+ftrace_stub:
+	br	%r14
+
+#endif /* CONFIG_64BIT */
diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c
new file mode 100644
index 000000000000..82c1872cfe80
--- /dev/null
+++ b/arch/s390/kernel/processor.c
@@ -0,0 +1,98 @@
+/*
+ *  arch/s390/kernel/processor.c
+ *
+ *  Copyright IBM Corp. 2008
+ *  Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ */
+
+#define KMSG_COMPONENT "cpu"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/smp.h>
+#include <linux/seq_file.h>
+#include <linux/delay.h>
+
+#include <asm/elf.h>
+#include <asm/lowcore.h>
+#include <asm/param.h>
+
+void __cpuinit print_cpu_info(struct cpuinfo_S390 *cpuinfo)
+{
+	pr_info("Processor %d started, address %d, identification %06X\n",
+		cpuinfo->cpu_nr, cpuinfo->cpu_addr, cpuinfo->cpu_id.ident);
+}
+
+/*
+ * show_cpuinfo - Get information on one CPU for use by procfs.
+ */
+
+static int show_cpuinfo(struct seq_file *m, void *v)
+{
+	static const char *hwcap_str[8] = {
+		"esan3", "zarch", "stfle", "msa", "ldisp", "eimm", "dfp",
+		"edat"
+	};
+       struct cpuinfo_S390 *cpuinfo;
+       unsigned long n = (unsigned long) v - 1;
+       int i;
+
+       s390_adjust_jiffies();
+       preempt_disable();
+       if (!n) {
+	       seq_printf(m, "vendor_id       : IBM/S390\n"
+			  "# processors    : %i\n"
+			  "bogomips per cpu: %lu.%02lu\n",
+			  num_online_cpus(), loops_per_jiffy/(500000/HZ),
+			  (loops_per_jiffy/(5000/HZ))%100);
+	       seq_puts(m, "features\t: ");
+	       for (i = 0; i < 8; i++)
+		       if (hwcap_str[i] && (elf_hwcap & (1UL << i)))
+			       seq_printf(m, "%s ", hwcap_str[i]);
+	       seq_puts(m, "\n");
+       }
+
+       if (cpu_online(n)) {
+#ifdef CONFIG_SMP
+	       if (smp_processor_id() == n)
+		       cpuinfo = &S390_lowcore.cpu_data;
+	       else
+		       cpuinfo = &lowcore_ptr[n]->cpu_data;
+#else
+	       cpuinfo = &S390_lowcore.cpu_data;
+#endif
+	       seq_printf(m, "processor %li: "
+			  "version = %02X,  "
+			  "identification = %06X,  "
+			  "machine = %04X\n",
+			  n, cpuinfo->cpu_id.version,
+			  cpuinfo->cpu_id.ident,
+			  cpuinfo->cpu_id.machine);
+       }
+       preempt_enable();
+       return 0;
+}
+
+static void *c_start(struct seq_file *m, loff_t *pos)
+{
+	return *pos < NR_CPUS ? (void *)((unsigned long) *pos + 1) : NULL;
+}
+
+static void *c_next(struct seq_file *m, void *v, loff_t *pos)
+{
+	++*pos;
+	return c_start(m, pos);
+}
+
+static void c_stop(struct seq_file *m, void *v)
+{
+}
+
+const struct seq_operations cpuinfo_op = {
+	.start	= c_start,
+	.next	= c_next,
+	.stop	= c_stop,
+	.show	= show_cpuinfo,
+};
+
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 38ff2bce1203..75c496f4f16d 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -204,7 +204,6 @@ static unsigned long __peek_user(struct task_struct *child, addr_t addr)
 static int
 peek_user(struct task_struct *child, addr_t addr, addr_t data)
 {
-	struct user *dummy = NULL;
 	addr_t tmp, mask;
 
 	/*
@@ -213,8 +212,8 @@ peek_user(struct task_struct *child, addr_t addr, addr_t data)
 	 */
 	mask = __ADDR_MASK;
 #ifdef CONFIG_64BIT
-	if (addr >= (addr_t) &dummy->regs.acrs &&
-	    addr < (addr_t) &dummy->regs.orig_gpr2)
+	if (addr >= (addr_t) &((struct user *) NULL)->regs.acrs &&
+	    addr < (addr_t) &((struct user *) NULL)->regs.orig_gpr2)
 		mask = 3;
 #endif
 	if ((addr & mask) || addr > sizeof(struct user) - __ADDR_MASK)
@@ -312,7 +311,6 @@ static int __poke_user(struct task_struct *child, addr_t addr, addr_t data)
 static int
 poke_user(struct task_struct *child, addr_t addr, addr_t data)
 {
-	struct user *dummy = NULL;
 	addr_t mask;
 
 	/*
@@ -321,8 +319,8 @@ poke_user(struct task_struct *child, addr_t addr, addr_t data)
 	 */
 	mask = __ADDR_MASK;
 #ifdef CONFIG_64BIT
-	if (addr >= (addr_t) &dummy->regs.acrs &&
-	    addr < (addr_t) &dummy->regs.orig_gpr2)
+	if (addr >= (addr_t) &((struct user *) NULL)->regs.acrs &&
+	    addr < (addr_t) &((struct user *) NULL)->regs.orig_gpr2)
 		mask = 3;
 #endif
 	if ((addr & mask) || addr > sizeof(struct user) - __ADDR_MASK)
diff --git a/arch/s390/kernel/s390_ksyms.c b/arch/s390/kernel/s390_ksyms.c
index 48238a114ce9..46b90cb03707 100644
--- a/arch/s390/kernel/s390_ksyms.c
+++ b/arch/s390/kernel/s390_ksyms.c
@@ -14,6 +14,7 @@
 #include <asm/delay.h>
 #include <asm/pgalloc.h>
 #include <asm/setup.h>
+#include <asm/ftrace.h>
 #ifdef CONFIG_IP_MULTICAST
 #include <net/arp.h>
 #endif
@@ -43,3 +44,7 @@ EXPORT_SYMBOL(csum_fold);
 EXPORT_SYMBOL(console_mode);
 EXPORT_SYMBOL(console_devno);
 EXPORT_SYMBOL(console_irq);
+
+#ifdef CONFIG_FUNCTION_TRACER
+EXPORT_SYMBOL(_mcount);
+#endif
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 400b040df7fa..b7a1efd5522c 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -14,6 +14,9 @@
  * This file handles the architecture-dependent parts of initialization
  */
 
+#define KMSG_COMPONENT "setup"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
 #include <linux/errno.h>
 #include <linux/module.h>
 #include <linux/sched.h>
@@ -32,7 +35,6 @@
 #include <linux/bootmem.h>
 #include <linux/root_dev.h>
 #include <linux/console.h>
-#include <linux/seq_file.h>
 #include <linux/kernel_stat.h>
 #include <linux/device.h>
 #include <linux/notifier.h>
@@ -291,8 +293,8 @@ unsigned int switch_amode = 0;
 #endif
 EXPORT_SYMBOL_GPL(switch_amode);
 
-static void set_amode_and_uaccess(unsigned long user_amode,
-				  unsigned long user32_amode)
+static int set_amode_and_uaccess(unsigned long user_amode,
+				 unsigned long user32_amode)
 {
 	psw_user_bits = PSW_BASE_BITS | PSW_MASK_DAT | user_amode |
 			PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK |
@@ -309,11 +311,11 @@ static void set_amode_and_uaccess(unsigned long user_amode,
 			  PSW_MASK_MCHECK | PSW_DEFAULT_KEY;
 
 	if (MACHINE_HAS_MVCOS) {
-		printk("mvcos available.\n");
 		memcpy(&uaccess, &uaccess_mvcos_switch, sizeof(uaccess));
+		return 1;
 	} else {
-		printk("mvcos not available.\n");
 		memcpy(&uaccess, &uaccess_pt, sizeof(uaccess));
+		return 0;
 	}
 }
 
@@ -328,9 +330,10 @@ static int __init early_parse_switch_amode(char *p)
 early_param("switch_amode", early_parse_switch_amode);
 
 #else /* CONFIG_S390_SWITCH_AMODE */
-static inline void set_amode_and_uaccess(unsigned long user_amode,
-					 unsigned long user32_amode)
+static inline int set_amode_and_uaccess(unsigned long user_amode,
+					unsigned long user32_amode)
 {
+	return 0;
 }
 #endif /* CONFIG_S390_SWITCH_AMODE */
 
@@ -355,11 +358,20 @@ early_param("noexec", early_parse_noexec);
 static void setup_addressing_mode(void)
 {
 	if (s390_noexec) {
-		printk("S390 execute protection active, ");
-		set_amode_and_uaccess(PSW_ASC_SECONDARY, PSW32_ASC_SECONDARY);
+		if (set_amode_and_uaccess(PSW_ASC_SECONDARY,
+					  PSW32_ASC_SECONDARY))
+			pr_info("Execute protection active, "
+				"mvcos available\n");
+		else
+			pr_info("Execute protection active, "
+				"mvcos not available\n");
 	} else if (switch_amode) {
-		printk("S390 address spaces switched, ");
-		set_amode_and_uaccess(PSW_ASC_PRIMARY, PSW32_ASC_PRIMARY);
+		if (set_amode_and_uaccess(PSW_ASC_PRIMARY, PSW32_ASC_PRIMARY))
+			pr_info("Address spaces switched, "
+				"mvcos available\n");
+		else
+			pr_info("Address spaces switched, "
+				"mvcos not available\n");
 	}
 #ifdef CONFIG_TRACE_IRQFLAGS
 	sysc_restore_trace_psw.mask = psw_kernel_bits & ~PSW_MASK_MCHECK;
@@ -572,15 +584,15 @@ setup_memory(void)
 			start = PFN_PHYS(start_pfn) + bmap_size + PAGE_SIZE;
 
 			if (start + INITRD_SIZE > memory_end) {
-				printk("initrd extends beyond end of memory "
-				       "(0x%08lx > 0x%08lx)\n"
+				pr_err("initrd extends beyond end of "
+				       "memory (0x%08lx > 0x%08lx) "
 				       "disabling initrd\n",
 				       start + INITRD_SIZE, memory_end);
 				INITRD_START = INITRD_SIZE = 0;
 			} else {
-				printk("Moving initrd (0x%08lx -> 0x%08lx, "
-				       "size: %ld)\n",
-				       INITRD_START, start, INITRD_SIZE);
+				pr_info("Moving initrd (0x%08lx -> "
+					"0x%08lx, size: %ld)\n",
+					INITRD_START, start, INITRD_SIZE);
 				memmove((void *) start, (void *) INITRD_START,
 					INITRD_SIZE);
 				INITRD_START = start;
@@ -642,8 +654,9 @@ setup_memory(void)
 			initrd_start = INITRD_START;
 			initrd_end = initrd_start + INITRD_SIZE;
 		} else {
-			printk("initrd extends beyond end of memory "
-			       "(0x%08lx > 0x%08lx)\ndisabling initrd\n",
+			pr_err("initrd extends beyond end of "
+			       "memory (0x%08lx > 0x%08lx) "
+			       "disabling initrd\n",
 			       initrd_start + INITRD_SIZE, memory_end);
 			initrd_start = initrd_end = 0;
 		}
@@ -651,23 +664,6 @@ setup_memory(void)
 #endif
 }
 
-static int __init __stfle(unsigned long long *list, int doublewords)
-{
-	typedef struct { unsigned long long _[doublewords]; } addrtype;
-	register unsigned long __nr asm("0") = doublewords - 1;
-
-	asm volatile(".insn s,0xb2b00000,%0" /* stfle */
-		     : "=m" (*(addrtype *) list), "+d" (__nr) : : "cc");
-	return __nr + 1;
-}
-
-int __init stfle(unsigned long long *list, int doublewords)
-{
-	if (!(stfl() & (1UL << 24)))
-		return -EOPNOTSUPP;
-	return __stfle(list, doublewords);
-}
-
 /*
  * Setup hardware capabilities.
  */
@@ -739,8 +735,13 @@ static void __init setup_hwcaps(void)
 		strcpy(elf_platform, "z990");
 		break;
 	case 0x2094:
+	case 0x2096:
 		strcpy(elf_platform, "z9-109");
 		break;
+	case 0x2097:
+	case 0x2098:
+		strcpy(elf_platform, "z10");
+		break;
 	}
 }
 
@@ -752,25 +753,34 @@ static void __init setup_hwcaps(void)
 void __init
 setup_arch(char **cmdline_p)
 {
+	/* set up preferred console */
+	add_preferred_console("ttyS", 0, NULL);
+
         /*
          * print what head.S has found out about the machine
          */
 #ifndef CONFIG_64BIT
-	printk((MACHINE_IS_VM) ?
-	       "We are running under VM (31 bit mode)\n" :
-	       "We are running native (31 bit mode)\n");
-	printk((MACHINE_HAS_IEEE) ?
-	       "This machine has an IEEE fpu\n" :
-	       "This machine has no IEEE fpu\n");
+	if (MACHINE_IS_VM)
+		pr_info("Linux is running as a z/VM "
+			"guest operating system in 31-bit mode\n");
+	else
+		pr_info("Linux is running natively in 31-bit mode\n");
+	if (MACHINE_HAS_IEEE)
+		pr_info("The hardware system has IEEE compatible "
+			"floating point units\n");
+	else
+		pr_info("The hardware system has no IEEE compatible "
+			"floating point units\n");
 #else /* CONFIG_64BIT */
 	if (MACHINE_IS_VM)
-		printk("We are running under VM (64 bit mode)\n");
+		pr_info("Linux is running as a z/VM "
+			"guest operating system in 64-bit mode\n");
 	else if (MACHINE_IS_KVM) {
-		printk("We are running under KVM (64 bit mode)\n");
+		pr_info("Linux is running under KVM in 64-bit mode\n");
 		add_preferred_console("hvc", 0, NULL);
 		s390_virtio_console_init();
 	} else
-		printk("We are running native (64 bit mode)\n");
+		pr_info("Linux is running natively in 64-bit mode\n");
 #endif /* CONFIG_64BIT */
 
 	/* Have one command line that is parsed and saved in /proc/cmdline */
@@ -818,90 +828,3 @@ setup_arch(char **cmdline_p)
 	/* Setup zfcpdump support */
 	setup_zfcpdump(console_devno);
 }
-
-void __cpuinit print_cpu_info(struct cpuinfo_S390 *cpuinfo)
-{
-   printk(KERN_INFO "cpu %d "
-#ifdef CONFIG_SMP
-           "phys_idx=%d "
-#endif
-           "vers=%02X ident=%06X machine=%04X unused=%04X\n",
-           cpuinfo->cpu_nr,
-#ifdef CONFIG_SMP
-           cpuinfo->cpu_addr,
-#endif
-           cpuinfo->cpu_id.version,
-           cpuinfo->cpu_id.ident,
-           cpuinfo->cpu_id.machine,
-           cpuinfo->cpu_id.unused);
-}
-
-/*
- * show_cpuinfo - Get information on one CPU for use by procfs.
- */
-
-static int show_cpuinfo(struct seq_file *m, void *v)
-{
-	static const char *hwcap_str[8] = {
-		"esan3", "zarch", "stfle", "msa", "ldisp", "eimm", "dfp",
-		"edat"
-	};
-        struct cpuinfo_S390 *cpuinfo;
-	unsigned long n = (unsigned long) v - 1;
-	int i;
-
-	s390_adjust_jiffies();
-	preempt_disable();
-	if (!n) {
-		seq_printf(m, "vendor_id       : IBM/S390\n"
-			       "# processors    : %i\n"
-			       "bogomips per cpu: %lu.%02lu\n",
-			       num_online_cpus(), loops_per_jiffy/(500000/HZ),
-			       (loops_per_jiffy/(5000/HZ))%100);
-		seq_puts(m, "features\t: ");
-		for (i = 0; i < 8; i++)
-			if (hwcap_str[i] && (elf_hwcap & (1UL << i)))
-				seq_printf(m, "%s ", hwcap_str[i]);
-		seq_puts(m, "\n");
-	}
-
-	if (cpu_online(n)) {
-#ifdef CONFIG_SMP
-		if (smp_processor_id() == n)
-			cpuinfo = &S390_lowcore.cpu_data;
-		else
-			cpuinfo = &lowcore_ptr[n]->cpu_data;
-#else
-		cpuinfo = &S390_lowcore.cpu_data;
-#endif
-		seq_printf(m, "processor %li: "
-			       "version = %02X,  "
-			       "identification = %06X,  "
-			       "machine = %04X\n",
-			       n, cpuinfo->cpu_id.version,
-			       cpuinfo->cpu_id.ident,
-			       cpuinfo->cpu_id.machine);
-	}
-	preempt_enable();
-        return 0;
-}
-
-static void *c_start(struct seq_file *m, loff_t *pos)
-{
-	return *pos < NR_CPUS ? (void *)((unsigned long) *pos + 1) : NULL;
-}
-static void *c_next(struct seq_file *m, void *v, loff_t *pos)
-{
-	++*pos;
-	return c_start(m, pos);
-}
-static void c_stop(struct seq_file *m, void *v)
-{
-}
-const struct seq_operations cpuinfo_op = {
-	.start	= c_start,
-	.next	= c_next,
-	.stop	= c_stop,
-	.show	= show_cpuinfo,
-};
-
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index f03914b8ed2f..3ed5c7a83c6c 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -20,6 +20,9 @@
  * cpu_number_map in other architectures.
  */
 
+#define KMSG_COMPONENT "cpu"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/mm.h>
@@ -71,159 +74,6 @@ static DEFINE_PER_CPU(struct cpu, cpu_devices);
 
 static void smp_ext_bitcall(int, ec_bit_sig);
 
-/*
- * Structure and data for __smp_call_function_map(). This is designed to
- * minimise static memory requirements. It also looks cleaner.
- */
-static DEFINE_SPINLOCK(call_lock);
-
-struct call_data_struct {
-	void (*func) (void *info);
-	void *info;
-	cpumask_t started;
-	cpumask_t finished;
-	int wait;
-};
-
-static struct call_data_struct *call_data;
-
-/*
- * 'Call function' interrupt callback
- */
-static void do_call_function(void)
-{
-	void (*func) (void *info) = call_data->func;
-	void *info = call_data->info;
-	int wait = call_data->wait;
-
-	cpu_set(smp_processor_id(), call_data->started);
-	(*func)(info);
-	if (wait)
-		cpu_set(smp_processor_id(), call_data->finished);;
-}
-
-static void __smp_call_function_map(void (*func) (void *info), void *info,
-				    int wait, cpumask_t map)
-{
-	struct call_data_struct data;
-	int cpu, local = 0;
-
-	/*
-	 * Can deadlock when interrupts are disabled or if in wrong context.
-	 */
-	WARN_ON(irqs_disabled() || in_irq());
-
-	/*
-	 * Check for local function call. We have to have the same call order
-	 * as in on_each_cpu() because of machine_restart_smp().
-	 */
-	if (cpu_isset(smp_processor_id(), map)) {
-		local = 1;
-		cpu_clear(smp_processor_id(), map);
-	}
-
-	cpus_and(map, map, cpu_online_map);
-	if (cpus_empty(map))
-		goto out;
-
-	data.func = func;
-	data.info = info;
-	data.started = CPU_MASK_NONE;
-	data.wait = wait;
-	if (wait)
-		data.finished = CPU_MASK_NONE;
-
-	call_data = &data;
-
-	for_each_cpu_mask(cpu, map)
-		smp_ext_bitcall(cpu, ec_call_function);
-
-	/* Wait for response */
-	while (!cpus_equal(map, data.started))
-		cpu_relax();
-	if (wait)
-		while (!cpus_equal(map, data.finished))
-			cpu_relax();
-out:
-	if (local) {
-		local_irq_disable();
-		func(info);
-		local_irq_enable();
-	}
-}
-
-/*
- * smp_call_function:
- * @func: the function to run; this must be fast and non-blocking
- * @info: an arbitrary pointer to pass to the function
- * @wait: if true, wait (atomically) until function has completed on other CPUs
- *
- * Run a function on all other CPUs.
- *
- * You must not call this function with disabled interrupts, from a
- * hardware interrupt handler or from a bottom half.
- */
-int smp_call_function(void (*func) (void *info), void *info, int wait)
-{
-	cpumask_t map;
-
-	spin_lock(&call_lock);
-	map = cpu_online_map;
-	cpu_clear(smp_processor_id(), map);
-	__smp_call_function_map(func, info, wait, map);
-	spin_unlock(&call_lock);
-	return 0;
-}
-EXPORT_SYMBOL(smp_call_function);
-
-/*
- * smp_call_function_single:
- * @cpu: the CPU where func should run
- * @func: the function to run; this must be fast and non-blocking
- * @info: an arbitrary pointer to pass to the function
- * @wait: if true, wait (atomically) until function has completed on other CPUs
- *
- * Run a function on one processor.
- *
- * You must not call this function with disabled interrupts, from a
- * hardware interrupt handler or from a bottom half.
- */
-int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
-			     int wait)
-{
-	spin_lock(&call_lock);
-	__smp_call_function_map(func, info, wait, cpumask_of_cpu(cpu));
-	spin_unlock(&call_lock);
-	return 0;
-}
-EXPORT_SYMBOL(smp_call_function_single);
-
-/**
- * smp_call_function_mask(): Run a function on a set of other CPUs.
- * @mask: The set of cpus to run on.  Must not include the current cpu.
- * @func: The function to run. This must be fast and non-blocking.
- * @info: An arbitrary pointer to pass to the function.
- * @wait: If true, wait (atomically) until function has completed on other CPUs.
- *
- * Returns 0 on success, else a negative status code.
- *
- * If @wait is true, then returns once @func has returned; otherwise
- * it returns just before the target cpu calls @func.
- *
- * You must not call this function with disabled interrupts or from a
- * hardware interrupt handler or from a bottom half handler.
- */
-int smp_call_function_mask(cpumask_t mask, void (*func)(void *), void *info,
-			   int wait)
-{
-	spin_lock(&call_lock);
-	cpu_clear(smp_processor_id(), mask);
-	__smp_call_function_map(func, info, wait, mask);
-	spin_unlock(&call_lock);
-	return 0;
-}
-EXPORT_SYMBOL(smp_call_function_mask);
-
 void smp_send_stop(void)
 {
 	int cpu, rc;
@@ -265,7 +115,10 @@ static void do_ext_call_interrupt(__u16 code)
 	bits = xchg(&S390_lowcore.ext_call_fast, 0);
 
 	if (test_bit(ec_call_function, &bits))
-		do_call_function();
+		generic_smp_call_function_interrupt();
+
+	if (test_bit(ec_call_function_single, &bits))
+		generic_smp_call_function_single_interrupt();
 }
 
 /*
@@ -282,6 +135,19 @@ static void smp_ext_bitcall(int cpu, ec_bit_sig sig)
 		udelay(10);
 }
 
+void arch_send_call_function_ipi(cpumask_t mask)
+{
+	int cpu;
+
+	for_each_cpu_mask(cpu, mask)
+		smp_ext_bitcall(cpu, ec_call_function);
+}
+
+void arch_send_call_function_single_ipi(int cpu)
+{
+	smp_ext_bitcall(cpu, ec_call_function_single);
+}
+
 #ifndef CONFIG_64BIT
 /*
  * this function sends a 'purge tlb' signal to another CPU.
@@ -382,8 +248,8 @@ static void __init smp_get_save_area(unsigned int cpu, unsigned int phy_cpu)
 	if (ipl_info.type != IPL_TYPE_FCP_DUMP)
 		return;
 	if (cpu >= NR_CPUS) {
-		printk(KERN_WARNING "Registers for cpu %i not saved since dump "
-		       "kernel was compiled with NR_CPUS=%i\n", cpu, NR_CPUS);
+		pr_warning("CPU %i exceeds the maximum %i and is excluded from "
+			   "the dump\n", cpu, NR_CPUS - 1);
 		return;
 	}
 	zfcpdump_save_areas[cpu] = kmalloc(sizeof(union save_area), GFP_KERNEL);
@@ -556,7 +422,7 @@ static void __init smp_detect_cpus(void)
 	}
 out:
 	kfree(info);
-	printk(KERN_INFO "CPUs: %d configured, %d standby\n", c_cpus, s_cpus);
+	pr_info("%d configured CPUs, %d standby CPUs\n", c_cpus, s_cpus);
 	get_online_cpus();
 	__smp_rescan_cpus();
 	put_online_cpus();
@@ -572,19 +438,17 @@ int __cpuinit start_secondary(void *cpuvoid)
 	preempt_disable();
 	/* Enable TOD clock interrupts on the secondary cpu. */
 	init_cpu_timer();
-#ifdef CONFIG_VIRT_TIMER
 	/* Enable cpu timer interrupts on the secondary cpu. */
 	init_cpu_vtimer();
-#endif
 	/* Enable pfault pseudo page faults on this cpu. */
 	pfault_init();
 
 	/* call cpu notifiers */
 	notify_cpu_starting(smp_processor_id());
 	/* Mark this cpu as online */
-	spin_lock(&call_lock);
+	ipi_call_lock();
 	cpu_set(smp_processor_id(), cpu_online_map);
-	spin_unlock(&call_lock);
+	ipi_call_unlock();
 	/* Switch on interrupts */
 	local_irq_enable();
 	/* Print info about this processor */
@@ -633,18 +497,15 @@ static int __cpuinit smp_alloc_lowcore(int cpu)
 
 		save_area = get_zeroed_page(GFP_KERNEL);
 		if (!save_area)
-			goto out_save_area;
+			goto out;
 		lowcore->extended_save_area_addr = (u32) save_area;
 	}
 #endif
 	lowcore_ptr[cpu] = lowcore;
 	return 0;
 
-#ifndef CONFIG_64BIT
-out_save_area:
-	free_page(panic_stack);
-#endif
 out:
+	free_page(panic_stack);
 	free_pages(async_stack, ASYNC_ORDER);
 	free_pages((unsigned long) lowcore, lc_order);
 	return -ENOMEM;
@@ -684,12 +545,8 @@ int __cpuinit __cpu_up(unsigned int cpu)
 
 	ccode = signal_processor_p((__u32)(unsigned long)(lowcore_ptr[cpu]),
 				   cpu, sigp_set_prefix);
-	if (ccode) {
-		printk("sigp_set_prefix failed for cpu %d "
-		       "with condition code %d\n",
-		       (int) cpu, (int) ccode);
+	if (ccode)
 		return -EIO;
-	}
 
 	idle = current_set[cpu];
 	cpu_lowcore = lowcore_ptr[cpu];
@@ -772,7 +629,7 @@ void __cpu_die(unsigned int cpu)
 	while (!smp_cpu_not_running(cpu))
 		cpu_relax();
 	smp_free_lowcore(cpu);
-	printk(KERN_INFO "Processor %d spun down\n", cpu);
+	pr_info("Processor %d stopped\n", cpu);
 }
 
 void cpu_die(void)
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index f5bd141c8443..d649600df5b9 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -12,6 +12,9 @@
  *    Copyright (C) 1991, 1992, 1995  Linus Torvalds
  */
 
+#define KMSG_COMPONENT "time"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
 #include <linux/errno.h>
 #include <linux/module.h>
 #include <linux/sched.h>
@@ -20,6 +23,8 @@
 #include <linux/string.h>
 #include <linux/mm.h>
 #include <linux/interrupt.h>
+#include <linux/cpu.h>
+#include <linux/stop_machine.h>
 #include <linux/time.h>
 #include <linux/sysdev.h>
 #include <linux/delay.h>
@@ -36,6 +41,7 @@
 #include <asm/delay.h>
 #include <asm/s390_ext.h>
 #include <asm/div64.h>
+#include <asm/vdso.h>
 #include <asm/irq.h>
 #include <asm/irq_regs.h>
 #include <asm/timer.h>
@@ -223,6 +229,36 @@ static struct clocksource clocksource_tod = {
 };
 
 
+void update_vsyscall(struct timespec *wall_time, struct clocksource *clock)
+{
+	if (clock != &clocksource_tod)
+		return;
+
+	/* Make userspace gettimeofday spin until we're done. */
+	++vdso_data->tb_update_count;
+	smp_wmb();
+	vdso_data->xtime_tod_stamp = clock->cycle_last;
+	vdso_data->xtime_clock_sec = xtime.tv_sec;
+	vdso_data->xtime_clock_nsec = xtime.tv_nsec;
+	vdso_data->wtom_clock_sec = wall_to_monotonic.tv_sec;
+	vdso_data->wtom_clock_nsec = wall_to_monotonic.tv_nsec;
+	smp_wmb();
+	++vdso_data->tb_update_count;
+}
+
+extern struct timezone sys_tz;
+
+void update_vsyscall_tz(void)
+{
+	/* Make userspace gettimeofday spin until we're done. */
+	++vdso_data->tb_update_count;
+	smp_wmb();
+	vdso_data->tz_minuteswest = sys_tz.tz_minuteswest;
+	vdso_data->tz_dsttime = sys_tz.tz_dsttime;
+	smp_wmb();
+	++vdso_data->tb_update_count;
+}
+
 /*
  * Initialize the TOD clock and the CPU timer of
  * the boot cpu.
@@ -253,10 +289,8 @@ void __init time_init(void)
 
 	/* Enable TOD clock interrupts on the boot cpu. */
 	init_cpu_timer();
-
-#ifdef CONFIG_VIRT_TIMER
+	/* Enable cpu timer interrupts on the boot cpu. */
 	vtime_init();
-#endif
 }
 
 /*
@@ -288,8 +322,8 @@ static unsigned long long adjust_time(unsigned long long old,
 	}
 	sched_clock_base_cc += delta;
 	if (adjust.offset != 0) {
-		printk(KERN_NOTICE "etr: time adjusted by %li micro-seconds\n",
-		       adjust.offset);
+		pr_notice("The ETR interface has adjusted the clock "
+			  "by %li microseconds\n", adjust.offset);
 		adjust.modes = ADJ_OFFSET_SINGLESHOT;
 		do_adjtimex(&adjust);
 	}
@@ -360,6 +394,15 @@ static void enable_sync_clock(void)
 	atomic_set_mask(0x80000000, sw_ptr);
 }
 
+/* Single threaded workqueue used for etr and stp sync events */
+static struct workqueue_struct *time_sync_wq;
+
+static void __init time_init_wq(void)
+{
+	if (!time_sync_wq)
+		time_sync_wq = create_singlethread_workqueue("timesync");
+}
+
 /*
  * External Time Reference (ETR) code.
  */
@@ -425,6 +468,7 @@ static struct timer_list etr_timer;
 
 static void etr_timeout(unsigned long dummy);
 static void etr_work_fn(struct work_struct *work);
+static DEFINE_MUTEX(etr_work_mutex);
 static DECLARE_WORK(etr_work, etr_work_fn);
 
 /*
@@ -440,8 +484,8 @@ static void etr_reset(void)
 		etr_tolec = get_clock();
 		set_bit(CLOCK_SYNC_HAS_ETR, &clock_sync_flags);
 	} else if (etr_port0_online || etr_port1_online) {
-		printk(KERN_WARNING "Running on non ETR capable "
-		       "machine, only local mode available.\n");
+		pr_warning("The real or virtual hardware system does "
+			   "not provide an ETR interface\n");
 		etr_port0_online = etr_port1_online = 0;
 	}
 }
@@ -452,17 +496,18 @@ static int __init etr_init(void)
 
 	if (!test_bit(CLOCK_SYNC_HAS_ETR, &clock_sync_flags))
 		return 0;
+	time_init_wq();
 	/* Check if this machine has the steai instruction. */
 	if (etr_steai(&aib, ETR_STEAI_STEPPING_PORT) == 0)
 		etr_steai_available = 1;
 	setup_timer(&etr_timer, etr_timeout, 0UL);
 	if (etr_port0_online) {
 		set_bit(ETR_EVENT_PORT0_CHANGE, &etr_events);
-		schedule_work(&etr_work);
+		queue_work(time_sync_wq, &etr_work);
 	}
 	if (etr_port1_online) {
 		set_bit(ETR_EVENT_PORT1_CHANGE, &etr_events);
-		schedule_work(&etr_work);
+		queue_work(time_sync_wq, &etr_work);
 	}
 	return 0;
 }
@@ -489,7 +534,7 @@ void etr_switch_to_local(void)
 	if (test_bit(CLOCK_SYNC_ETR, &clock_sync_flags))
 		disable_sync_clock(NULL);
 	set_bit(ETR_EVENT_SWITCH_LOCAL, &etr_events);
-	schedule_work(&etr_work);
+	queue_work(time_sync_wq, &etr_work);
 }
 
 /*
@@ -505,7 +550,7 @@ void etr_sync_check(void)
 	if (test_bit(CLOCK_SYNC_ETR, &clock_sync_flags))
 		disable_sync_clock(NULL);
 	set_bit(ETR_EVENT_SYNC_CHECK, &etr_events);
-	schedule_work(&etr_work);
+	queue_work(time_sync_wq, &etr_work);
 }
 
 /*
@@ -529,13 +574,13 @@ static void etr_timing_alert(struct etr_irq_parm *intparm)
 		 * Both ports are not up-to-date now.
 		 */
 		set_bit(ETR_EVENT_PORT_ALERT, &etr_events);
-	schedule_work(&etr_work);
+	queue_work(time_sync_wq, &etr_work);
 }
 
 static void etr_timeout(unsigned long dummy)
 {
 	set_bit(ETR_EVENT_UPDATE, &etr_events);
-	schedule_work(&etr_work);
+	queue_work(time_sync_wq, &etr_work);
 }
 
 /*
@@ -642,14 +687,16 @@ static int etr_aib_follows(struct etr_aib *a1, struct etr_aib *a2, int p)
 }
 
 struct clock_sync_data {
+	atomic_t cpus;
 	int in_sync;
 	unsigned long long fixup_cc;
+	int etr_port;
+	struct etr_aib *etr_aib;
 };
 
-static void clock_sync_cpu_start(void *dummy)
+static void clock_sync_cpu(struct clock_sync_data *sync)
 {
-	struct clock_sync_data *sync = dummy;
-
+	atomic_dec(&sync->cpus);
 	enable_sync_clock();
 	/*
 	 * This looks like a busy wait loop but it isn't. etr_sync_cpus
@@ -675,39 +722,35 @@ static void clock_sync_cpu_start(void *dummy)
 	fixup_clock_comparator(sync->fixup_cc);
 }
 
-static void clock_sync_cpu_end(void *dummy)
-{
-}
-
 /*
  * Sync the TOD clock using the port refered to by aibp. This port
  * has to be enabled and the other port has to be disabled. The
  * last eacr update has to be more than 1.6 seconds in the past.
  */
-static int etr_sync_clock(struct etr_aib *aib, int port)
+static int etr_sync_clock(void *data)
 {
-	struct etr_aib *sync_port;
-	struct clock_sync_data etr_sync;
+	static int first;
 	unsigned long long clock, old_clock, delay, delta;
-	int follows;
+	struct clock_sync_data *etr_sync;
+	struct etr_aib *sync_port, *aib;
+	int port;
 	int rc;
 
-	/* Check if the current aib is adjacent to the sync port aib. */
-	sync_port = (port == 0) ? &etr_port0 : &etr_port1;
-	follows = etr_aib_follows(sync_port, aib, port);
-	memcpy(sync_port, aib, sizeof(*aib));
-	if (!follows)
-		return -EAGAIN;
+	etr_sync = data;
 
-	/*
-	 * Catch all other cpus and make them wait until we have
-	 * successfully synced the clock. smp_call_function will
-	 * return after all other cpus are in etr_sync_cpu_start.
-	 */
-	memset(&etr_sync, 0, sizeof(etr_sync));
-	preempt_disable();
-	smp_call_function(clock_sync_cpu_start, &etr_sync, 0);
-	local_irq_disable();
+	if (xchg(&first, 1) == 1) {
+		/* Slave */
+		clock_sync_cpu(etr_sync);
+		return 0;
+	}
+
+	/* Wait until all other cpus entered the sync function. */
+	while (atomic_read(&etr_sync->cpus) != 0)
+		cpu_relax();
+
+	port = etr_sync->etr_port;
+	aib = etr_sync->etr_aib;
+	sync_port = (port == 0) ? &etr_port0 : &etr_port1;
 	enable_sync_clock();
 
 	/* Set clock to next OTE. */
@@ -724,16 +767,16 @@ static int etr_sync_clock(struct etr_aib *aib, int port)
 		delay = (unsigned long long)
 			(aib->edf2.etv - sync_port->edf2.etv) << 32;
 		delta = adjust_time(old_clock, clock, delay);
-		etr_sync.fixup_cc = delta;
+		etr_sync->fixup_cc = delta;
 		fixup_clock_comparator(delta);
 		/* Verify that the clock is properly set. */
 		if (!etr_aib_follows(sync_port, aib, port)) {
 			/* Didn't work. */
 			disable_sync_clock(NULL);
-			etr_sync.in_sync = -EAGAIN;
+			etr_sync->in_sync = -EAGAIN;
 			rc = -EAGAIN;
 		} else {
-			etr_sync.in_sync = 1;
+			etr_sync->in_sync = 1;
 			rc = 0;
 		}
 	} else {
@@ -741,12 +784,33 @@ static int etr_sync_clock(struct etr_aib *aib, int port)
 		__ctl_clear_bit(0, 29);
 		__ctl_clear_bit(14, 21);
 		disable_sync_clock(NULL);
-		etr_sync.in_sync = -EAGAIN;
+		etr_sync->in_sync = -EAGAIN;
 		rc = -EAGAIN;
 	}
-	local_irq_enable();
-	smp_call_function(clock_sync_cpu_end, NULL, 0);
-	preempt_enable();
+	xchg(&first, 0);
+	return rc;
+}
+
+static int etr_sync_clock_stop(struct etr_aib *aib, int port)
+{
+	struct clock_sync_data etr_sync;
+	struct etr_aib *sync_port;
+	int follows;
+	int rc;
+
+	/* Check if the current aib is adjacent to the sync port aib. */
+	sync_port = (port == 0) ? &etr_port0 : &etr_port1;
+	follows = etr_aib_follows(sync_port, aib, port);
+	memcpy(sync_port, aib, sizeof(*aib));
+	if (!follows)
+		return -EAGAIN;
+	memset(&etr_sync, 0, sizeof(etr_sync));
+	etr_sync.etr_aib = aib;
+	etr_sync.etr_port = port;
+	get_online_cpus();
+	atomic_set(&etr_sync.cpus, num_online_cpus() - 1);
+	rc = stop_machine(etr_sync_clock, &etr_sync, &cpu_online_map);
+	put_online_cpus();
 	return rc;
 }
 
@@ -903,7 +967,7 @@ static void etr_update_eacr(struct etr_eacr eacr)
 }
 
 /*
- * ETR tasklet. In this function you'll find the main logic. In
+ * ETR work. In this function you'll find the main logic. In
  * particular this is the only function that calls etr_update_eacr(),
  * it "controls" the etr control register.
  */
@@ -914,6 +978,9 @@ static void etr_work_fn(struct work_struct *work)
 	struct etr_aib aib;
 	int sync_port;
 
+	/* prevent multiple execution. */
+	mutex_lock(&etr_work_mutex);
+
 	/* Create working copy of etr_eacr. */
 	eacr = etr_eacr;
 
@@ -929,7 +996,7 @@ static void etr_work_fn(struct work_struct *work)
 		del_timer_sync(&etr_timer);
 		etr_update_eacr(eacr);
 		clear_bit(CLOCK_SYNC_ETR, &clock_sync_flags);
-		return;
+		goto out_unlock;
 	}
 
 	/* Store aib to get the current ETR status word. */
@@ -1016,7 +1083,7 @@ static void etr_work_fn(struct work_struct *work)
 	    eacr.es || sync_port < 0) {
 		etr_update_eacr(eacr);
 		etr_set_tolec_timeout(now);
-		return;
+		goto out_unlock;
 	}
 
 	/*
@@ -1036,7 +1103,7 @@ static void etr_work_fn(struct work_struct *work)
 	etr_update_eacr(eacr);
 	set_bit(CLOCK_SYNC_ETR, &clock_sync_flags);
 	if (now < etr_tolec + (1600000 << 12) ||
-	    etr_sync_clock(&aib, sync_port) != 0) {
+	    etr_sync_clock_stop(&aib, sync_port) != 0) {
 		/* Sync failed. Try again in 1/2 second. */
 		eacr.es = 0;
 		etr_update_eacr(eacr);
@@ -1044,6 +1111,8 @@ static void etr_work_fn(struct work_struct *work)
 		etr_set_sync_timeout();
 	} else
 		etr_set_tolec_timeout(now);
+out_unlock:
+	mutex_unlock(&etr_work_mutex);
 }
 
 /*
@@ -1125,13 +1194,13 @@ static ssize_t etr_online_store(struct sys_device *dev,
 			return count;	/* Nothing to do. */
 		etr_port0_online = value;
 		set_bit(ETR_EVENT_PORT0_CHANGE, &etr_events);
-		schedule_work(&etr_work);
+		queue_work(time_sync_wq, &etr_work);
 	} else {
 		if (etr_port1_online == value)
 			return count;	/* Nothing to do. */
 		etr_port1_online = value;
 		set_bit(ETR_EVENT_PORT1_CHANGE, &etr_events);
-		schedule_work(&etr_work);
+		queue_work(time_sync_wq, &etr_work);
 	}
 	return count;
 }
@@ -1332,6 +1401,7 @@ static struct stp_sstpi stp_info;
 static void *stp_page;
 
 static void stp_work_fn(struct work_struct *work);
+static DEFINE_MUTEX(stp_work_mutex);
 static DECLARE_WORK(stp_work, stp_work_fn);
 
 static int __init early_parse_stp(char *p)
@@ -1356,7 +1426,8 @@ static void __init stp_reset(void)
 	if (rc == 0)
 		set_bit(CLOCK_SYNC_HAS_STP, &clock_sync_flags);
 	else if (stp_online) {
-		printk(KERN_WARNING "Running on non STP capable machine.\n");
+		pr_warning("The real or virtual hardware system does "
+			   "not provide an STP interface\n");
 		free_bootmem((unsigned long) stp_page, PAGE_SIZE);
 		stp_page = NULL;
 		stp_online = 0;
@@ -1365,8 +1436,12 @@ static void __init stp_reset(void)
 
 static int __init stp_init(void)
 {
-	if (test_bit(CLOCK_SYNC_HAS_STP, &clock_sync_flags) && stp_online)
-		schedule_work(&stp_work);
+	if (!test_bit(CLOCK_SYNC_HAS_STP, &clock_sync_flags))
+		return 0;
+	time_init_wq();
+	if (!stp_online)
+		return 0;
+	queue_work(time_sync_wq, &stp_work);
 	return 0;
 }
 
@@ -1383,7 +1458,7 @@ arch_initcall(stp_init);
 static void stp_timing_alert(struct stp_irq_parm *intparm)
 {
 	if (intparm->tsc || intparm->lac || intparm->tcpc)
-		schedule_work(&stp_work);
+		queue_work(time_sync_wq, &stp_work);
 }
 
 /*
@@ -1397,7 +1472,7 @@ void stp_sync_check(void)
 	if (!test_bit(CLOCK_SYNC_STP, &clock_sync_flags))
 		return;
 	disable_sync_clock(NULL);
-	schedule_work(&stp_work);
+	queue_work(time_sync_wq, &stp_work);
 }
 
 /*
@@ -1411,46 +1486,34 @@ void stp_island_check(void)
 	if (!test_bit(CLOCK_SYNC_STP, &clock_sync_flags))
 		return;
 	disable_sync_clock(NULL);
-	schedule_work(&stp_work);
+	queue_work(time_sync_wq, &stp_work);
 }
 
-/*
- * STP tasklet. Check for the STP state and take over the clock
- * synchronization if the STP clock source is usable.
- */
-static void stp_work_fn(struct work_struct *work)
+
+static int stp_sync_clock(void *data)
 {
-	struct clock_sync_data stp_sync;
+	static int first;
 	unsigned long long old_clock, delta;
+	struct clock_sync_data *stp_sync;
 	int rc;
 
-	if (!stp_online) {
-		chsc_sstpc(stp_page, STP_OP_CTRL, 0x0000);
-		return;
-	}
+	stp_sync = data;
 
-	rc = chsc_sstpc(stp_page, STP_OP_CTRL, 0xb0e0);
-	if (rc)
-		return;
+	if (xchg(&first, 1) == 1) {
+		/* Slave */
+		clock_sync_cpu(stp_sync);
+		return 0;
+	}
 
-	rc = chsc_sstpi(stp_page, &stp_info, sizeof(struct stp_sstpi));
-	if (rc || stp_info.c == 0)
-		return;
+	/* Wait until all other cpus entered the sync function. */
+	while (atomic_read(&stp_sync->cpus) != 0)
+		cpu_relax();
 
-	/*
-	 * Catch all other cpus and make them wait until we have
-	 * successfully synced the clock. smp_call_function will
-	 * return after all other cpus are in clock_sync_cpu_start.
-	 */
-	memset(&stp_sync, 0, sizeof(stp_sync));
-	preempt_disable();
-	smp_call_function(clock_sync_cpu_start, &stp_sync, 0);
-	local_irq_disable();
 	enable_sync_clock();
 
 	set_bit(CLOCK_SYNC_STP, &clock_sync_flags);
 	if (test_and_clear_bit(CLOCK_SYNC_ETR, &clock_sync_flags))
-		schedule_work(&etr_work);
+		queue_work(time_sync_wq, &etr_work);
 
 	rc = 0;
 	if (stp_info.todoff[0] || stp_info.todoff[1] ||
@@ -1469,16 +1532,49 @@ static void stp_work_fn(struct work_struct *work)
 	}
 	if (rc) {
 		disable_sync_clock(NULL);
-		stp_sync.in_sync = -EAGAIN;
+		stp_sync->in_sync = -EAGAIN;
 		clear_bit(CLOCK_SYNC_STP, &clock_sync_flags);
 		if (etr_port0_online || etr_port1_online)
-			schedule_work(&etr_work);
+			queue_work(time_sync_wq, &etr_work);
 	} else
-		stp_sync.in_sync = 1;
+		stp_sync->in_sync = 1;
+	xchg(&first, 0);
+	return 0;
+}
+
+/*
+ * STP work. Check for the STP state and take over the clock
+ * synchronization if the STP clock source is usable.
+ */
+static void stp_work_fn(struct work_struct *work)
+{
+	struct clock_sync_data stp_sync;
+	int rc;
+
+	/* prevent multiple execution. */
+	mutex_lock(&stp_work_mutex);
+
+	if (!stp_online) {
+		chsc_sstpc(stp_page, STP_OP_CTRL, 0x0000);
+		goto out_unlock;
+	}
+
+	rc = chsc_sstpc(stp_page, STP_OP_CTRL, 0xb0e0);
+	if (rc)
+		goto out_unlock;
+
+	rc = chsc_sstpi(stp_page, &stp_info, sizeof(struct stp_sstpi));
+	if (rc || stp_info.c == 0)
+		goto out_unlock;
+
+	memset(&stp_sync, 0, sizeof(stp_sync));
+	get_online_cpus();
+	atomic_set(&stp_sync.cpus, num_online_cpus() - 1);
+	stop_machine(stp_sync_clock, &stp_sync, &cpu_online_map);
+	put_online_cpus();
 
-	local_irq_enable();
-	smp_call_function(clock_sync_cpu_end, NULL, 0);
-	preempt_enable();
+out_unlock:
+	mutex_unlock(&stp_work_mutex);
 }
 
 /*
@@ -1587,7 +1683,7 @@ static ssize_t stp_online_store(struct sysdev_class *class,
 	if (!test_bit(CLOCK_SYNC_HAS_STP, &clock_sync_flags))
 		return -EOPNOTSUPP;
 	stp_online = value;
-	schedule_work(&stp_work);
+	queue_work(time_sync_wq, &stp_work);
 	return count;
 }
 
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index bf96f1b5c6ec..cc362c9ea8f1 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -3,6 +3,9 @@
  *    Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
  */
 
+#define KMSG_COMPONENT "cpu"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/init.h>
@@ -12,6 +15,7 @@
 #include <linux/workqueue.h>
 #include <linux/cpu.h>
 #include <linux/smp.h>
+#include <linux/cpuset.h>
 #include <asm/delay.h>
 #include <asm/s390_ext.h>
 #include <asm/sysinfo.h>
@@ -57,11 +61,11 @@ struct core_info {
 	cpumask_t mask;
 };
 
+static int topology_enabled;
 static void topology_work_fn(struct work_struct *work);
 static struct tl_info *tl_info;
 static struct core_info core_info;
 static int machine_has_topology;
-static int machine_has_topology_irq;
 static struct timer_list topology_timer;
 static void set_topology_timer(void);
 static DECLARE_WORK(topology_work, topology_work_fn);
@@ -77,8 +81,8 @@ cpumask_t cpu_coregroup_map(unsigned int cpu)
 	cpumask_t mask;
 
 	cpus_clear(mask);
-	if (!machine_has_topology)
-		return cpu_present_map;
+	if (!topology_enabled || !machine_has_topology)
+		return cpu_possible_map;
 	spin_lock_irqsave(&topology_lock, flags);
 	while (core) {
 		if (cpu_isset(cpu, core->mask)) {
@@ -93,6 +97,11 @@ cpumask_t cpu_coregroup_map(unsigned int cpu)
 	return mask;
 }
 
+const struct cpumask *cpu_coregroup_mask(unsigned int cpu)
+{
+	return &cpu_core_map[cpu];
+}
+
 static void add_cpus_to_core(struct tl_cpu *tl_cpu, struct core_info *core)
 {
 	unsigned int cpu;
@@ -168,7 +177,7 @@ static void topology_update_polarization_simple(void)
 	int cpu;
 
 	mutex_lock(&smp_cpu_state_mutex);
-	for_each_present_cpu(cpu)
+	for_each_possible_cpu(cpu)
 		smp_cpu_polarization[cpu] = POLARIZATION_HRZ;
 	mutex_unlock(&smp_cpu_state_mutex);
 }
@@ -199,7 +208,7 @@ int topology_set_cpu_management(int fc)
 		rc = ptf(PTF_HORIZONTAL);
 	if (rc)
 		return -EBUSY;
-	for_each_present_cpu(cpu)
+	for_each_possible_cpu(cpu)
 		smp_cpu_polarization[cpu] = POLARIZATION_UNKNWN;
 	return rc;
 }
@@ -208,7 +217,7 @@ static void update_cpu_core_map(void)
 {
 	int cpu;
 
-	for_each_present_cpu(cpu)
+	for_each_possible_cpu(cpu)
 		cpu_core_map[cpu] = cpu_coregroup_map(cpu);
 }
 
@@ -235,7 +244,7 @@ int arch_update_cpu_topology(void)
 
 static void topology_work_fn(struct work_struct *work)
 {
-	arch_reinit_sched_domains();
+	rebuild_sched_domains();
 }
 
 void topology_schedule_update(void)
@@ -258,10 +267,14 @@ static void set_topology_timer(void)
 	add_timer(&topology_timer);
 }
 
-static void topology_interrupt(__u16 code)
+static int __init early_parse_topology(char *p)
 {
-	schedule_work(&topology_work);
+	if (strncmp(p, "on", 2))
+		return 0;
+	topology_enabled = 1;
+	return 0;
 }
+early_param("topology", early_parse_topology);
 
 static int __init init_topology_update(void)
 {
@@ -273,14 +286,7 @@ static int __init init_topology_update(void)
 		goto out;
 	}
 	init_timer_deferrable(&topology_timer);
-	if (machine_has_topology_irq) {
-		rc = register_external_interrupt(0x2005, topology_interrupt);
-		if (rc)
-			goto out;
-		ctl_set_bit(0, 8);
-	}
-	else
-		set_topology_timer();
+	set_topology_timer();
 out:
 	update_cpu_core_map();
 	return rc;
@@ -301,9 +307,6 @@ void __init s390_init_cpu_topology(void)
 		return;
 	machine_has_topology = 1;
 
-	if (facility_bits & (1ULL << 51))
-		machine_has_topology_irq = 1;
-
 	tl_info = alloc_bootmem_pages(PAGE_SIZE);
 	info = tl_info;
 	stsi(info, 15, 1, 2);
@@ -312,7 +315,7 @@ void __init s390_init_cpu_topology(void)
 	for (i = 0; i < info->mnest - 2; i++)
 		nr_cores *= info->mag[NR_MAG - 3 - i];
 
-	printk(KERN_INFO "CPU topology:");
+	pr_info("The CPU configuration topology of the machine is:");
 	for (i = 0; i < NR_MAG; i++)
 		printk(" %d", info->mag[i]);
 	printk(" / %d\n", info->mnest);
@@ -327,5 +330,4 @@ void __init s390_init_cpu_topology(void)
 	return;
 error:
 	machine_has_topology = 0;
-	machine_has_topology_irq = 0;
 }
diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c
new file mode 100644
index 000000000000..10a6ccef4412
--- /dev/null
+++ b/arch/s390/kernel/vdso.c
@@ -0,0 +1,234 @@
+/*
+ * vdso setup for s390
+ *
+ *  Copyright IBM Corp. 2008
+ *  Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2 only)
+ * as published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/stddef.h>
+#include <linux/unistd.h>
+#include <linux/slab.h>
+#include <linux/user.h>
+#include <linux/elf.h>
+#include <linux/security.h>
+#include <linux/bootmem.h>
+
+#include <asm/pgtable.h>
+#include <asm/system.h>
+#include <asm/processor.h>
+#include <asm/mmu.h>
+#include <asm/mmu_context.h>
+#include <asm/sections.h>
+#include <asm/vdso.h>
+
+/* Max supported size for symbol names */
+#define MAX_SYMNAME	64
+
+#if defined(CONFIG_32BIT) || defined(CONFIG_COMPAT)
+extern char vdso32_start, vdso32_end;
+static void *vdso32_kbase = &vdso32_start;
+static unsigned int vdso32_pages;
+static struct page **vdso32_pagelist;
+#endif
+
+#ifdef CONFIG_64BIT
+extern char vdso64_start, vdso64_end;
+static void *vdso64_kbase = &vdso64_start;
+static unsigned int vdso64_pages;
+static struct page **vdso64_pagelist;
+#endif /* CONFIG_64BIT */
+
+/*
+ * Should the kernel map a VDSO page into processes and pass its
+ * address down to glibc upon exec()?
+ */
+unsigned int __read_mostly vdso_enabled = 1;
+
+static int __init vdso_setup(char *s)
+{
+	vdso_enabled = simple_strtoul(s, NULL, 0);
+	return 1;
+}
+__setup("vdso=", vdso_setup);
+
+/*
+ * The vdso data page
+ */
+static union {
+	struct vdso_data	data;
+	u8			page[PAGE_SIZE];
+} vdso_data_store __attribute__((__section__(".data.page_aligned")));
+struct vdso_data *vdso_data = &vdso_data_store.data;
+
+/*
+ * This is called from binfmt_elf, we create the special vma for the
+ * vDSO and insert it into the mm struct tree
+ */
+int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
+{
+	struct mm_struct *mm = current->mm;
+	struct page **vdso_pagelist;
+	unsigned long vdso_pages;
+	unsigned long vdso_base;
+	int rc;
+
+	if (!vdso_enabled)
+		return 0;
+	/*
+	 * Only map the vdso for dynamically linked elf binaries.
+	 */
+	if (!uses_interp)
+		return 0;
+
+	vdso_base = mm->mmap_base;
+#ifdef CONFIG_64BIT
+	vdso_pagelist = vdso64_pagelist;
+	vdso_pages = vdso64_pages;
+#ifdef CONFIG_COMPAT
+	if (test_thread_flag(TIF_31BIT)) {
+		vdso_pagelist = vdso32_pagelist;
+		vdso_pages = vdso32_pages;
+	}
+#endif
+#else
+	vdso_pagelist = vdso32_pagelist;
+	vdso_pages = vdso32_pages;
+#endif
+
+	/*
+	 * vDSO has a problem and was disabled, just don't "enable" it for
+	 * the process
+	 */
+	if (vdso_pages == 0)
+		return 0;
+
+	current->mm->context.vdso_base = 0;
+
+	/*
+	 * pick a base address for the vDSO in process space. We try to put
+	 * it at vdso_base which is the "natural" base for it, but we might
+	 * fail and end up putting it elsewhere.
+	 */
+	down_write(&mm->mmap_sem);
+	vdso_base = get_unmapped_area(NULL, vdso_base,
+				      vdso_pages << PAGE_SHIFT, 0, 0);
+	if (IS_ERR_VALUE(vdso_base)) {
+		rc = vdso_base;
+		goto out_up;
+	}
+
+	/*
+	 * our vma flags don't have VM_WRITE so by default, the process
+	 * isn't allowed to write those pages.
+	 * gdb can break that with ptrace interface, and thus trigger COW
+	 * on those pages but it's then your responsibility to never do that
+	 * on the "data" page of the vDSO or you'll stop getting kernel
+	 * updates and your nice userland gettimeofday will be totally dead.
+	 * It's fine to use that for setting breakpoints in the vDSO code
+	 * pages though
+	 *
+	 * Make sure the vDSO gets into every core dump.
+	 * Dumping its contents makes post-mortem fully interpretable later
+	 * without matching up the same kernel and hardware config to see
+	 * what PC values meant.
+	 */
+	rc = install_special_mapping(mm, vdso_base, vdso_pages << PAGE_SHIFT,
+				     VM_READ|VM_EXEC|
+				     VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC|
+				     VM_ALWAYSDUMP,
+				     vdso_pagelist);
+	if (rc)
+		goto out_up;
+
+	/* Put vDSO base into mm struct */
+	current->mm->context.vdso_base = vdso_base;
+
+	up_write(&mm->mmap_sem);
+	return 0;
+
+out_up:
+	up_write(&mm->mmap_sem);
+	return rc;
+}
+
+const char *arch_vma_name(struct vm_area_struct *vma)
+{
+	if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso_base)
+		return "[vdso]";
+	return NULL;
+}
+
+static int __init vdso_init(void)
+{
+	int i;
+
+#if defined(CONFIG_32BIT) || defined(CONFIG_COMPAT)
+	/* Calculate the size of the 32 bit vDSO */
+	vdso32_pages = ((&vdso32_end - &vdso32_start
+			 + PAGE_SIZE - 1) >> PAGE_SHIFT) + 1;
+
+	/* Make sure pages are in the correct state */
+	vdso32_pagelist = kzalloc(sizeof(struct page *) * (vdso32_pages + 1),
+				  GFP_KERNEL);
+	BUG_ON(vdso32_pagelist == NULL);
+	for (i = 0; i < vdso32_pages - 1; i++) {
+		struct page *pg = virt_to_page(vdso32_kbase + i*PAGE_SIZE);
+		ClearPageReserved(pg);
+		get_page(pg);
+		vdso32_pagelist[i] = pg;
+	}
+	vdso32_pagelist[vdso32_pages - 1] = virt_to_page(vdso_data);
+	vdso32_pagelist[vdso32_pages] = NULL;
+#endif
+
+#ifdef CONFIG_64BIT
+	/* Calculate the size of the 64 bit vDSO */
+	vdso64_pages = ((&vdso64_end - &vdso64_start
+			 + PAGE_SIZE - 1) >> PAGE_SHIFT) + 1;
+
+	/* Make sure pages are in the correct state */
+	vdso64_pagelist = kzalloc(sizeof(struct page *) * (vdso64_pages + 1),
+				  GFP_KERNEL);
+	BUG_ON(vdso64_pagelist == NULL);
+	for (i = 0; i < vdso64_pages - 1; i++) {
+		struct page *pg = virt_to_page(vdso64_kbase + i*PAGE_SIZE);
+		ClearPageReserved(pg);
+		get_page(pg);
+		vdso64_pagelist[i] = pg;
+	}
+	vdso64_pagelist[vdso64_pages - 1] = virt_to_page(vdso_data);
+	vdso64_pagelist[vdso64_pages] = NULL;
+#endif /* CONFIG_64BIT */
+
+	get_page(virt_to_page(vdso_data));
+
+	smp_wmb();
+
+	return 0;
+}
+arch_initcall(vdso_init);
+
+int in_gate_area_no_task(unsigned long addr)
+{
+	return 0;
+}
+
+int in_gate_area(struct task_struct *task, unsigned long addr)
+{
+	return 0;
+}
+
+struct vm_area_struct *get_gate_vma(struct task_struct *tsk)
+{
+	return NULL;
+}
diff --git a/arch/s390/kernel/vdso32/Makefile b/arch/s390/kernel/vdso32/Makefile
new file mode 100644
index 000000000000..ca78ad60ba24
--- /dev/null
+++ b/arch/s390/kernel/vdso32/Makefile
@@ -0,0 +1,55 @@
+# List of files in the vdso, has to be asm only for now
+
+obj-vdso32 = gettimeofday.o clock_getres.o clock_gettime.o note.o
+
+# Build rules
+
+targets := $(obj-vdso32) vdso32.so vdso32.so.dbg
+obj-vdso32 := $(addprefix $(obj)/, $(obj-vdso32))
+
+KBUILD_AFLAGS_31 := $(filter-out -m64,$(KBUILD_AFLAGS))
+KBUILD_AFLAGS_31 += -m31 -s
+
+KBUILD_CFLAGS_31 := $(filter-out -m64,$(KBUILD_CFLAGS))
+KBUILD_CFLAGS_31 += -m31 -fPIC -shared -fno-common -fno-builtin
+KBUILD_CFLAGS_31 += -nostdlib -Wl,-soname=linux-vdso32.so.1 \
+			$(call ld-option, -Wl$(comma)--hash-style=sysv)
+
+$(targets:%=$(obj)/%.dbg): KBUILD_CFLAGS = $(KBUILD_CFLAGS_31)
+$(targets:%=$(obj)/%.dbg): KBUILD_AFLAGS = $(KBUILD_AFLAGS_31)
+
+obj-y += vdso32_wrapper.o
+extra-y += vdso32.lds
+CPPFLAGS_vdso32.lds += -P -C -U$(ARCH)
+
+# Force dependency (incbin is bad)
+$(obj)/vdso32_wrapper.o : $(obj)/vdso32.so
+
+# link rule for the .so file, .lds has to be first
+$(obj)/vdso32.so.dbg: $(src)/vdso32.lds $(obj-vdso32)
+	$(call if_changed,vdso32ld)
+
+# strip rule for the .so file
+$(obj)/%.so: OBJCOPYFLAGS := -S
+$(obj)/%.so: $(obj)/%.so.dbg FORCE
+	$(call if_changed,objcopy)
+
+# assembly rules for the .S files
+$(obj-vdso32): %.o: %.S
+	$(call if_changed_dep,vdso32as)
+
+# actual build commands
+quiet_cmd_vdso32ld = VDSO32L $@
+      cmd_vdso32ld = $(CC) $(c_flags) -Wl,-T $^ -o $@
+quiet_cmd_vdso32as = VDSO32A $@
+      cmd_vdso32as = $(CC) $(a_flags) -c -o $@ $<
+
+# install commands for the unstripped file
+quiet_cmd_vdso_install = INSTALL $@
+      cmd_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/vdso/$@
+
+vdso32.so: $(obj)/vdso32.so.dbg
+	@mkdir -p $(MODLIB)/vdso
+	$(call cmd,vdso_install)
+
+vdso_install: vdso32.so
diff --git a/arch/s390/kernel/vdso32/clock_getres.S b/arch/s390/kernel/vdso32/clock_getres.S
new file mode 100644
index 000000000000..9532c4e6a9d2
--- /dev/null
+++ b/arch/s390/kernel/vdso32/clock_getres.S
@@ -0,0 +1,39 @@
+/*
+ * Userland implementation of clock_getres() for 32 bits processes in a
+ * s390 kernel for use in the vDSO
+ *
+ *  Copyright IBM Corp. 2008
+ *  Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2 only)
+ * as published by the Free Software Foundation.
+ */
+#include <asm/vdso.h>
+#include <asm/asm-offsets.h>
+#include <asm/unistd.h>
+
+	.text
+	.align 4
+	.globl __kernel_clock_getres
+	.type  __kernel_clock_getres,@function
+__kernel_clock_getres:
+	.cfi_startproc
+	chi	%r2,CLOCK_REALTIME
+	je	0f
+	chi	%r2,CLOCK_MONOTONIC
+	jne	3f
+0:	ltr	%r3,%r3
+	jz	2f				/* res == NULL */
+	basr	%r1,0
+1:	l	%r0,4f-1b(%r1)
+	xc	0(4,%r3),0(%r3)			/* set tp->tv_sec to zero */
+	st	%r0,4(%r3)			/* store tp->tv_usec */
+2:	lhi	%r2,0
+	br	%r14
+3:	lhi	%r1,__NR_clock_getres		/* fallback to svc */
+	svc	0
+	br	%r14
+4:	.long	CLOCK_REALTIME_RES
+	.cfi_endproc
+	.size	__kernel_clock_getres,.-__kernel_clock_getres
diff --git a/arch/s390/kernel/vdso32/clock_gettime.S b/arch/s390/kernel/vdso32/clock_gettime.S
new file mode 100644
index 000000000000..4a98909a8310
--- /dev/null
+++ b/arch/s390/kernel/vdso32/clock_gettime.S
@@ -0,0 +1,128 @@
+/*
+ * Userland implementation of clock_gettime() for 32 bits processes in a
+ * s390 kernel for use in the vDSO
+ *
+ *  Copyright IBM Corp. 2008
+ *  Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2 only)
+ * as published by the Free Software Foundation.
+ */
+#include <asm/vdso.h>
+#include <asm/asm-offsets.h>
+#include <asm/unistd.h>
+
+	.text
+	.align 4
+	.globl __kernel_clock_gettime
+	.type  __kernel_clock_gettime,@function
+__kernel_clock_gettime:
+	.cfi_startproc
+	basr	%r5,0
+0:	al	%r5,21f-0b(%r5)			/* get &_vdso_data */
+	chi	%r2,CLOCK_REALTIME
+	je	10f
+	chi	%r2,CLOCK_MONOTONIC
+	jne	19f
+
+	/* CLOCK_MONOTONIC */
+	ltr	%r3,%r3
+	jz	9f				/* tp == NULL */
+1:	l	%r4,__VDSO_UPD_COUNT+4(%r5)	/* load update counter */
+	tml	%r4,0x0001			/* pending update ? loop */
+	jnz	1b
+	stck	24(%r15)			/* Store TOD clock */
+	lm	%r0,%r1,24(%r15)
+	s	%r0,__VDSO_XTIME_STAMP(%r5)	/* TOD - cycle_last */
+	sl	%r1,__VDSO_XTIME_STAMP+4(%r5)
+	brc	3,2f
+	ahi	%r0,-1
+2:	mhi	%r0,1000			/* cyc2ns(clock,cycle_delta) */
+	lr	%r2,%r0
+	lhi	%r0,1000
+	ltr	%r1,%r1
+	mr	%r0,%r0
+	jnm	3f
+	ahi	%r0,1000
+3:	alr	%r0,%r2
+	srdl	%r0,12
+	al	%r0,__VDSO_XTIME_NSEC(%r5)	/*  + xtime */
+	al	%r1,__VDSO_XTIME_NSEC+4(%r5)
+	brc	12,4f
+	ahi	%r0,1
+4:	l	%r2,__VDSO_XTIME_SEC+4(%r5)
+	al	%r0,__VDSO_WTOM_NSEC(%r5)	/*  + wall_to_monotonic */
+	al	%r1,__VDSO_WTOM_NSEC+4(%r5)
+	brc	12,5f
+	ahi	%r0,1
+5:	al	%r2,__VDSO_WTOM_SEC+4(%r5)
+	cl	%r4,__VDSO_UPD_COUNT+4(%r5)	/* check update counter */
+	jne	1b
+	basr	%r5,0
+6:	ltr	%r0,%r0
+	jnz	7f
+	cl	%r1,20f-6b(%r5)
+	jl	8f
+7:	ahi	%r2,1
+	sl	%r1,20f-6b(%r5)
+	brc	3,6b
+	ahi	%r0,-1
+	j	6b
+8:	st	%r2,0(%r3)			/* store tp->tv_sec */
+	st	%r1,4(%r3)			/* store tp->tv_nsec */
+9:	lhi	%r2,0
+	br	%r14
+
+	/* CLOCK_REALTIME */
+10:	ltr	%r3,%r3				/* tp == NULL */
+	jz	18f
+11:	l	%r4,__VDSO_UPD_COUNT+4(%r5)	/* load update counter */
+	tml	%r4,0x0001			/* pending update ? loop */
+	jnz	11b
+	stck	24(%r15)			/* Store TOD clock */
+	lm	%r0,%r1,24(%r15)
+	s	%r0,__VDSO_XTIME_STAMP(%r5)	/* TOD - cycle_last */
+	sl	%r1,__VDSO_XTIME_STAMP+4(%r5)
+	brc	3,12f
+	ahi	%r0,-1
+12:	mhi	%r0,1000			/* cyc2ns(clock,cycle_delta) */
+	lr	%r2,%r0
+	lhi	%r0,1000
+	ltr	%r1,%r1
+	mr	%r0,%r0
+	jnm	13f
+	ahi	%r0,1000
+13:	alr	%r0,%r2
+	srdl	%r0,12
+	al	%r0,__VDSO_XTIME_NSEC(%r5)	/*  + xtime */
+	al	%r1,__VDSO_XTIME_NSEC+4(%r5)
+	brc	12,14f
+	ahi	%r0,1
+14:	l	%r2,__VDSO_XTIME_SEC+4(%r5)
+	cl	%r4,__VDSO_UPD_COUNT+4(%r5)	/* check update counter */
+	jne	11b
+	basr	%r5,0
+15:	ltr	%r0,%r0
+	jnz	16f
+	cl	%r1,20f-15b(%r5)
+	jl	17f
+16:	ahi	%r2,1
+	sl	%r1,20f-15b(%r5)
+	brc	3,15b
+	ahi	%r0,-1
+	j	15b
+17:	st	%r2,0(%r3)			/* store tp->tv_sec */
+	st	%r1,4(%r3)			/* store tp->tv_nsec */
+18:	lhi	%r2,0
+	br	%r14
+
+	/* Fallback to system call */
+19:	lhi	%r1,__NR_clock_gettime
+	svc	0
+	br	%r14
+
+20:	.long	1000000000
+21:	.long	_vdso_data - 0b
+	.cfi_endproc
+	.size	__kernel_clock_gettime,.-__kernel_clock_gettime
diff --git a/arch/s390/kernel/vdso32/gettimeofday.S b/arch/s390/kernel/vdso32/gettimeofday.S
new file mode 100644
index 000000000000..c32f29c3d70c
--- /dev/null
+++ b/arch/s390/kernel/vdso32/gettimeofday.S
@@ -0,0 +1,82 @@
+/*
+ * Userland implementation of gettimeofday() for 32 bits processes in a
+ * s390 kernel for use in the vDSO
+ *
+ *  Copyright IBM Corp. 2008
+ *  Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2 only)
+ * as published by the Free Software Foundation.
+ */
+#include <asm/vdso.h>
+#include <asm/asm-offsets.h>
+#include <asm/unistd.h>
+
+#include <asm/vdso.h>
+#include <asm/asm-offsets.h>
+#include <asm/unistd.h>
+
+	.text
+	.align 4
+	.globl __kernel_gettimeofday
+	.type  __kernel_gettimeofday,@function
+__kernel_gettimeofday:
+	.cfi_startproc
+	basr	%r5,0
+0:	al	%r5,13f-0b(%r5)			/* get &_vdso_data */
+1:	ltr	%r3,%r3				/* check if tz is NULL */
+	je	2f
+	mvc	0(8,%r3),__VDSO_TIMEZONE(%r5)
+2:	ltr	%r2,%r2				/* check if tv is NULL */
+	je	10f
+	l	%r4,__VDSO_UPD_COUNT+4(%r5)	/* load update counter */
+	tml	%r4,0x0001			/* pending update ? loop */
+	jnz	1b
+	stck	24(%r15)			/* Store TOD clock */
+	lm	%r0,%r1,24(%r15)
+	s	%r0,__VDSO_XTIME_STAMP(%r5)	/* TOD - cycle_last */
+	sl	%r1,__VDSO_XTIME_STAMP+4(%r5)
+	brc	3,3f
+	ahi	%r0,-1
+3:	mhi	%r0,1000			/* cyc2ns(clock,cycle_delta) */
+	st	%r0,24(%r15)
+	lhi	%r0,1000
+	ltr	%r1,%r1
+	mr	%r0,%r0
+	jnm	4f
+	ahi	%r0,1000
+4:	al	%r0,24(%r15)
+	srdl	%r0,12
+	al	%r0,__VDSO_XTIME_NSEC(%r5)	/*  + xtime */
+	al	%r1,__VDSO_XTIME_NSEC+4(%r5)
+	brc	12,5f
+	ahi	%r0,1
+5:	mvc	24(4,%r15),__VDSO_XTIME_SEC+4(%r5)
+	cl	%r4,__VDSO_UPD_COUNT+4(%r5)	/* check update counter */
+	jne	1b
+	l	%r4,24(%r15)			/* get tv_sec from stack */
+	basr	%r5,0
+6:	ltr	%r0,%r0
+	jnz	7f
+	cl	%r1,11f-6b(%r5)
+	jl	8f
+7:	ahi	%r4,1
+	sl	%r1,11f-6b(%r5)
+	brc	3,6b
+	ahi	%r0,-1
+	j	6b
+8:	st	%r4,0(%r2)			/* store tv->tv_sec */
+	ltr	%r1,%r1
+	m	%r0,12f-6b(%r5)
+	jnm	9f
+	al	%r0,12f-6b(%r5)
+9:	srl	%r0,6
+	st	%r0,4(%r2)			/* store tv->tv_usec */
+10:	slr	%r2,%r2
+	br	%r14
+11:	.long	1000000000
+12:	.long	274877907
+13:	.long	_vdso_data - 0b
+	.cfi_endproc
+	.size	__kernel_gettimeofday,.-__kernel_gettimeofday
diff --git a/arch/s390/kernel/vdso32/note.S b/arch/s390/kernel/vdso32/note.S
new file mode 100644
index 000000000000..79a071e4357e
--- /dev/null
+++ b/arch/s390/kernel/vdso32/note.S
@@ -0,0 +1,12 @@
+/*
+ * This supplies .note.* sections to go into the PT_NOTE inside the vDSO text.
+ * Here we can supply some information useful to userland.
+ */
+
+#include <linux/uts.h>
+#include <linux/version.h>
+#include <linux/elfnote.h>
+
+ELFNOTE_START(Linux, 0, "a")
+	.long LINUX_VERSION_CODE
+ELFNOTE_END
diff --git a/arch/s390/kernel/vdso32/vdso32.lds.S b/arch/s390/kernel/vdso32/vdso32.lds.S
new file mode 100644
index 000000000000..a8c379fa1247
--- /dev/null
+++ b/arch/s390/kernel/vdso32/vdso32.lds.S
@@ -0,0 +1,138 @@
+/*
+ * This is the infamous ld script for the 32 bits vdso
+ * library
+ */
+#include <asm/vdso.h>
+
+OUTPUT_FORMAT("elf32-s390", "elf32-s390", "elf32-s390")
+OUTPUT_ARCH(s390:31-bit)
+ENTRY(_start)
+
+SECTIONS
+{
+	. = VDSO32_LBASE + SIZEOF_HEADERS;
+
+	.hash		: { *(.hash) }			:text
+	.gnu.hash	: { *(.gnu.hash) }
+	.dynsym		: { *(.dynsym) }
+	.dynstr		: { *(.dynstr) }
+	.gnu.version	: { *(.gnu.version) }
+	.gnu.version_d	: { *(.gnu.version_d) }
+	.gnu.version_r	: { *(.gnu.version_r) }
+
+	.note		: { *(.note.*) }		:text	:note
+
+	. = ALIGN(16);
+	.text		: {
+		*(.text .stub .text.* .gnu.linkonce.t.*)
+	} :text
+	PROVIDE(__etext = .);
+	PROVIDE(_etext = .);
+	PROVIDE(etext = .);
+
+	/*
+	 * Other stuff is appended to the text segment:
+	 */
+	.rodata		: { *(.rodata .rodata.* .gnu.linkonce.r.*) }
+	.rodata1	: { *(.rodata1) }
+
+	.dynamic	: { *(.dynamic) }		:text	:dynamic
+
+	.eh_frame_hdr	: { *(.eh_frame_hdr) }		:text	:eh_frame_hdr
+	.eh_frame	: { KEEP (*(.eh_frame)) }	:text
+	.gcc_except_table : { *(.gcc_except_table .gcc_except_table.*) }
+
+	.rela.dyn ALIGN(8) : { *(.rela.dyn) }
+	.got ALIGN(8)	: { *(.got .toc) }
+
+	_end = .;
+	PROVIDE(end = .);
+
+	/*
+	 * Stabs debugging sections are here too.
+	 */
+	.stab	       0 : { *(.stab) }
+	.stabstr       0 : { *(.stabstr) }
+	.stab.excl     0 : { *(.stab.excl) }
+	.stab.exclstr  0 : { *(.stab.exclstr) }
+	.stab.index    0 : { *(.stab.index) }
+	.stab.indexstr 0 : { *(.stab.indexstr) }
+	.comment       0 : { *(.comment) }
+
+	/*
+	 * DWARF debug sections.
+	 * Symbols in the DWARF debugging sections are relative to the
+	 * beginning of the section so we begin them at 0.
+	 */
+	/* DWARF 1 */
+	.debug		0 : { *(.debug) }
+	.line		0 : { *(.line) }
+	/* GNU DWARF 1 extensions */
+	.debug_srcinfo	0 : { *(.debug_srcinfo) }
+	.debug_sfnames	0 : { *(.debug_sfnames) }
+	/* DWARF 1.1 and DWARF 2 */
+	.debug_aranges	0 : { *(.debug_aranges) }
+	.debug_pubnames 0 : { *(.debug_pubnames) }
+	/* DWARF 2 */
+	.debug_info	0 : { *(.debug_info .gnu.linkonce.wi.*) }
+	.debug_abbrev	0 : { *(.debug_abbrev) }
+	.debug_line	0 : { *(.debug_line) }
+	.debug_frame	0 : { *(.debug_frame) }
+	.debug_str	0 : { *(.debug_str) }
+	.debug_loc	0 : { *(.debug_loc) }
+	.debug_macinfo	0 : { *(.debug_macinfo) }
+	/* SGI/MIPS DWARF 2 extensions */
+	.debug_weaknames 0 : { *(.debug_weaknames) }
+	.debug_funcnames 0 : { *(.debug_funcnames) }
+	.debug_typenames 0 : { *(.debug_typenames) }
+	.debug_varnames  0 : { *(.debug_varnames) }
+	/* DWARF 3 */
+	.debug_pubtypes 0 : { *(.debug_pubtypes) }
+	.debug_ranges	0 : { *(.debug_ranges) }
+	.gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
+
+	. = ALIGN(4096);
+	PROVIDE(_vdso_data = .);
+
+	/DISCARD/	: {
+		*(.note.GNU-stack)
+		*(.branch_lt)
+		*(.data .data.* .gnu.linkonce.d.* .sdata*)
+		*(.bss .sbss .dynbss .dynsbss)
+	}
+}
+
+/*
+ * Very old versions of ld do not recognize this name token; use the constant.
+ */
+#define PT_GNU_EH_FRAME	0x6474e550
+
+/*
+ * We must supply the ELF program headers explicitly to get just one
+ * PT_LOAD segment, and set the flags explicitly to make segments read-only.
+ */
+PHDRS
+{
+	text		PT_LOAD FILEHDR PHDRS FLAGS(5);	/* PF_R|PF_X */
+	dynamic		PT_DYNAMIC FLAGS(4);		/* PF_R */
+	note		PT_NOTE FLAGS(4);		/* PF_R */
+	eh_frame_hdr	PT_GNU_EH_FRAME;
+}
+
+/*
+ * This controls what symbols we export from the DSO.
+ */
+VERSION
+{
+	VDSO_VERSION_STRING {
+	global:
+		/*
+		 * Has to be there for the kernel to find
+		 */
+		__kernel_gettimeofday;
+		__kernel_clock_gettime;
+		__kernel_clock_getres;
+
+	local: *;
+	};
+}
diff --git a/arch/s390/kernel/vdso32/vdso32_wrapper.S b/arch/s390/kernel/vdso32/vdso32_wrapper.S
new file mode 100644
index 000000000000..61639a89e70b
--- /dev/null
+++ b/arch/s390/kernel/vdso32/vdso32_wrapper.S
@@ -0,0 +1,13 @@
+#include <linux/init.h>
+#include <asm/page.h>
+
+	.section ".data.page_aligned"
+
+	.globl vdso32_start, vdso32_end
+	.balign PAGE_SIZE
+vdso32_start:
+	.incbin "arch/s390/kernel/vdso32/vdso32.so"
+	.balign PAGE_SIZE
+vdso32_end:
+
+	.previous
diff --git a/arch/s390/kernel/vdso64/Makefile b/arch/s390/kernel/vdso64/Makefile
new file mode 100644
index 000000000000..6fc8e829258c
--- /dev/null
+++ b/arch/s390/kernel/vdso64/Makefile
@@ -0,0 +1,55 @@
+# List of files in the vdso, has to be asm only for now
+
+obj-vdso64 = gettimeofday.o clock_getres.o clock_gettime.o note.o
+
+# Build rules
+
+targets := $(obj-vdso64) vdso64.so vdso64.so.dbg
+obj-vdso64 := $(addprefix $(obj)/, $(obj-vdso64))
+
+KBUILD_AFLAGS_64 := $(filter-out -m64,$(KBUILD_AFLAGS))
+KBUILD_AFLAGS_64 += -m64 -s
+
+KBUILD_CFLAGS_64 := $(filter-out -m64,$(KBUILD_CFLAGS))
+KBUILD_CFLAGS_64 += -m64 -fPIC -shared -fno-common -fno-builtin
+KBUILD_CFLAGS_64 += -nostdlib -Wl,-soname=linux-vdso64.so.1 \
+			$(call ld-option, -Wl$(comma)--hash-style=sysv)
+
+$(targets:%=$(obj)/%.dbg): KBUILD_CFLAGS = $(KBUILD_CFLAGS_64)
+$(targets:%=$(obj)/%.dbg): KBUILD_AFLAGS = $(KBUILD_AFLAGS_64)
+
+obj-y += vdso64_wrapper.o
+extra-y += vdso64.lds
+CPPFLAGS_vdso64.lds += -P -C -U$(ARCH)
+
+# Force dependency (incbin is bad)
+$(obj)/vdso64_wrapper.o : $(obj)/vdso64.so
+
+# link rule for the .so file, .lds has to be first
+$(obj)/vdso64.so.dbg: $(src)/vdso64.lds $(obj-vdso64)
+	$(call if_changed,vdso64ld)
+
+# strip rule for the .so file
+$(obj)/%.so: OBJCOPYFLAGS := -S
+$(obj)/%.so: $(obj)/%.so.dbg FORCE
+	$(call if_changed,objcopy)
+
+# assembly rules for the .S files
+$(obj-vdso64): %.o: %.S
+	$(call if_changed_dep,vdso64as)
+
+# actual build commands
+quiet_cmd_vdso64ld = VDSO64L $@
+      cmd_vdso64ld = $(CC) $(c_flags) -Wl,-T $^ -o $@
+quiet_cmd_vdso64as = VDSO64A $@
+      cmd_vdso64as = $(CC) $(a_flags) -c -o $@ $<
+
+# install commands for the unstripped file
+quiet_cmd_vdso_install = INSTALL $@
+      cmd_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/vdso/$@
+
+vdso64.so: $(obj)/vdso64.so.dbg
+	@mkdir -p $(MODLIB)/vdso
+	$(call cmd,vdso_install)
+
+vdso_install: vdso64.so
diff --git a/arch/s390/kernel/vdso64/clock_getres.S b/arch/s390/kernel/vdso64/clock_getres.S
new file mode 100644
index 000000000000..488e31a3c0e7
--- /dev/null
+++ b/arch/s390/kernel/vdso64/clock_getres.S
@@ -0,0 +1,39 @@
+/*
+ * Userland implementation of clock_getres() for 64 bits processes in a
+ * s390 kernel for use in the vDSO
+ *
+ *  Copyright IBM Corp. 2008
+ *  Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2 only)
+ * as published by the Free Software Foundation.
+ */
+#include <asm/vdso.h>
+#include <asm/asm-offsets.h>
+#include <asm/unistd.h>
+
+	.text
+	.align 4
+	.globl __kernel_clock_getres
+	.type  __kernel_clock_getres,@function
+__kernel_clock_getres:
+	.cfi_startproc
+	cghi	%r2,CLOCK_REALTIME
+	je	0f
+	cghi	%r2,CLOCK_MONOTONIC
+	jne	2f
+0:	ltgr	%r3,%r3
+	jz	1f				/* res == NULL */
+	larl	%r1,3f
+	lg	%r0,0(%r1)
+	xc	0(8,%r3),0(%r3)			/* set tp->tv_sec to zero */
+	stg	%r0,8(%r3)			/* store tp->tv_usec */
+1:	lghi	%r2,0
+	br	%r14
+2:	lghi	%r1,__NR_clock_getres		/* fallback to svc */
+	svc	0
+	br	%r14
+3:	.quad	CLOCK_REALTIME_RES
+	.cfi_endproc
+	.size	__kernel_clock_getres,.-__kernel_clock_getres
diff --git a/arch/s390/kernel/vdso64/clock_gettime.S b/arch/s390/kernel/vdso64/clock_gettime.S
new file mode 100644
index 000000000000..738a410b7eb2
--- /dev/null
+++ b/arch/s390/kernel/vdso64/clock_gettime.S
@@ -0,0 +1,89 @@
+/*
+ * Userland implementation of clock_gettime() for 64 bits processes in a
+ * s390 kernel for use in the vDSO
+ *
+ *  Copyright IBM Corp. 2008
+ *  Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2 only)
+ * as published by the Free Software Foundation.
+ */
+#include <asm/vdso.h>
+#include <asm/asm-offsets.h>
+#include <asm/unistd.h>
+
+	.text
+	.align 4
+	.globl __kernel_clock_gettime
+	.type  __kernel_clock_gettime,@function
+__kernel_clock_gettime:
+	.cfi_startproc
+	larl	%r5,_vdso_data
+	cghi	%r2,CLOCK_REALTIME
+	je	4f
+	cghi	%r2,CLOCK_MONOTONIC
+	jne	9f
+
+	/* CLOCK_MONOTONIC */
+	ltgr	%r3,%r3
+	jz	3f				/* tp == NULL */
+0:	lg	%r4,__VDSO_UPD_COUNT(%r5)	/* load update counter */
+	tmll	%r4,0x0001			/* pending update ? loop */
+	jnz	0b
+	stck	48(%r15)			/* Store TOD clock */
+	lg	%r1,48(%r15)
+	sg	%r1,__VDSO_XTIME_STAMP(%r5)	/* TOD - cycle_last */
+	mghi	%r1,1000
+	srlg	%r1,%r1,12			/* cyc2ns(clock,cycle_delta) */
+	alg	%r1,__VDSO_XTIME_NSEC(%r5)	/*  + xtime */
+	lg	%r0,__VDSO_XTIME_SEC(%r5)
+	alg	%r1,__VDSO_WTOM_NSEC(%r5)	/*  + wall_to_monotonic */
+	alg	%r0,__VDSO_WTOM_SEC(%r5)
+	clg	%r4,__VDSO_UPD_COUNT(%r5)	/* check update counter */
+	jne	0b
+	larl	%r5,10f
+1:	clg	%r1,0(%r5)
+	jl	2f
+	slg	%r1,0(%r5)
+	aghi	%r0,1
+	j	1b
+2:	stg	%r0,0(%r3)			/* store tp->tv_sec */
+	stg	%r1,8(%r3)			/* store tp->tv_nsec */
+3:	lghi	%r2,0
+	br	%r14
+
+	/* CLOCK_REALTIME */
+4:	ltr	%r3,%r3				/* tp == NULL */
+	jz	8f
+5:	lg	%r4,__VDSO_UPD_COUNT(%r5)	/* load update counter */
+	tmll	%r4,0x0001			/* pending update ? loop */
+	jnz	5b
+	stck	48(%r15)			/* Store TOD clock */
+	lg	%r1,48(%r15)
+	sg	%r1,__VDSO_XTIME_STAMP(%r5)	/* TOD - cycle_last */
+	mghi	%r1,1000
+	srlg	%r1,%r1,12			/* cyc2ns(clock,cycle_delta) */
+	alg	%r1,__VDSO_XTIME_NSEC(%r5)	/*  + xtime */
+	lg	%r0,__VDSO_XTIME_SEC(%r5)
+	clg	%r4,__VDSO_UPD_COUNT(%r5)	/* check update counter */
+	jne	5b
+	larl	%r5,10f
+6:	clg	%r1,0(%r5)
+	jl	7f
+	slg	%r1,0(%r5)
+	aghi	%r0,1
+	j	6b
+7:	stg	%r0,0(%r3)			/* store tp->tv_sec */
+	stg	%r1,8(%r3)			/* store tp->tv_nsec */
+8:	lghi	%r2,0
+	br	%r14
+
+	/* Fallback to system call */
+9:	lghi	%r1,__NR_clock_gettime
+	svc	0
+	br	%r14
+
+10:	.quad	1000000000
+	.cfi_endproc
+	.size	__kernel_clock_gettime,.-__kernel_clock_gettime
diff --git a/arch/s390/kernel/vdso64/gettimeofday.S b/arch/s390/kernel/vdso64/gettimeofday.S
new file mode 100644
index 000000000000..f873e75634e1
--- /dev/null
+++ b/arch/s390/kernel/vdso64/gettimeofday.S
@@ -0,0 +1,56 @@
+/*
+ * Userland implementation of gettimeofday() for 64 bits processes in a
+ * s390 kernel for use in the vDSO
+ *
+ *  Copyright IBM Corp. 2008
+ *  Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2 only)
+ * as published by the Free Software Foundation.
+ */
+#include <asm/vdso.h>
+#include <asm/asm-offsets.h>
+#include <asm/unistd.h>
+
+	.text
+	.align 4
+	.globl __kernel_gettimeofday
+	.type  __kernel_gettimeofday,@function
+__kernel_gettimeofday:
+	.cfi_startproc
+	larl	%r5,_vdso_data
+0:	ltgr	%r3,%r3				/* check if tz is NULL */
+	je	1f
+	mvc	0(8,%r3),__VDSO_TIMEZONE(%r5)
+1:	ltgr	%r2,%r2				/* check if tv is NULL */
+	je	4f
+	lg	%r4,__VDSO_UPD_COUNT(%r5)	/* load update counter */
+	tmll	%r4,0x0001			/* pending update ? loop */
+	jnz	0b
+	stck	48(%r15)			/* Store TOD clock */
+	lg	%r1,48(%r15)
+	sg	%r1,__VDSO_XTIME_STAMP(%r5)	/* TOD - cycle_last */
+	mghi	%r1,1000
+	srlg	%r1,%r1,12			/* cyc2ns(clock,cycle_delta) */
+	alg	%r1,__VDSO_XTIME_NSEC(%r5)	/*  + xtime.tv_nsec */
+	lg	%r0,__VDSO_XTIME_SEC(%r5)	/* xtime.tv_sec */
+	clg	%r4,__VDSO_UPD_COUNT(%r5)	/* check update counter */
+	jne	0b
+	larl	%r5,5f
+2:	clg	%r1,0(%r5)
+	jl	3f
+	slg	%r1,0(%r5)
+	aghi	%r0,1
+	j	2b
+3:	stg	%r0,0(%r2)			/* store tv->tv_sec */
+	slgr	%r0,%r0				/* tv_nsec -> tv_usec */
+	ml	%r0,8(%r5)
+	srlg	%r0,%r0,6
+	stg	%r0,8(%r2)			/* store tv->tv_usec */
+4:	lghi	%r2,0
+	br	%r14
+5:	.quad	1000000000
+	.long	274877907
+	.cfi_endproc
+	.size	__kernel_gettimeofday,.-__kernel_gettimeofday
diff --git a/arch/s390/kernel/vdso64/note.S b/arch/s390/kernel/vdso64/note.S
new file mode 100644
index 000000000000..79a071e4357e
--- /dev/null
+++ b/arch/s390/kernel/vdso64/note.S
@@ -0,0 +1,12 @@
+/*
+ * This supplies .note.* sections to go into the PT_NOTE inside the vDSO text.
+ * Here we can supply some information useful to userland.
+ */
+
+#include <linux/uts.h>
+#include <linux/version.h>
+#include <linux/elfnote.h>
+
+ELFNOTE_START(Linux, 0, "a")
+	.long LINUX_VERSION_CODE
+ELFNOTE_END
diff --git a/arch/s390/kernel/vdso64/vdso64.lds.S b/arch/s390/kernel/vdso64/vdso64.lds.S
new file mode 100644
index 000000000000..9f5979d102a9
--- /dev/null
+++ b/arch/s390/kernel/vdso64/vdso64.lds.S
@@ -0,0 +1,138 @@
+/*
+ * This is the infamous ld script for the 64 bits vdso
+ * library
+ */
+#include <asm/vdso.h>
+
+OUTPUT_FORMAT("elf64-s390", "elf64-s390", "elf64-s390")
+OUTPUT_ARCH(s390:64-bit)
+ENTRY(_start)
+
+SECTIONS
+{
+	. = VDSO64_LBASE + SIZEOF_HEADERS;
+
+	.hash		: { *(.hash) }			:text
+	.gnu.hash	: { *(.gnu.hash) }
+	.dynsym		: { *(.dynsym) }
+	.dynstr		: { *(.dynstr) }
+	.gnu.version	: { *(.gnu.version) }
+	.gnu.version_d	: { *(.gnu.version_d) }
+	.gnu.version_r	: { *(.gnu.version_r) }
+
+	.note		: { *(.note.*) }		:text	:note
+
+	. = ALIGN(16);
+	.text		: {
+		*(.text .stub .text.* .gnu.linkonce.t.*)
+	} :text
+	PROVIDE(__etext = .);
+	PROVIDE(_etext = .);
+	PROVIDE(etext = .);
+
+	/*
+	 * Other stuff is appended to the text segment:
+	 */
+	.rodata		: { *(.rodata .rodata.* .gnu.linkonce.r.*) }
+	.rodata1	: { *(.rodata1) }
+
+	.dynamic	: { *(.dynamic) }		:text	:dynamic
+
+	.eh_frame_hdr	: { *(.eh_frame_hdr) }		:text	:eh_frame_hdr
+	.eh_frame	: { KEEP (*(.eh_frame)) }	:text
+	.gcc_except_table : { *(.gcc_except_table .gcc_except_table.*) }
+
+	.rela.dyn ALIGN(8) : { *(.rela.dyn) }
+	.got ALIGN(8)	: { *(.got .toc) }
+
+	_end = .;
+	PROVIDE(end = .);
+
+	/*
+	 * Stabs debugging sections are here too.
+	 */
+	.stab	       0 : { *(.stab) }
+	.stabstr       0 : { *(.stabstr) }
+	.stab.excl     0 : { *(.stab.excl) }
+	.stab.exclstr  0 : { *(.stab.exclstr) }
+	.stab.index    0 : { *(.stab.index) }
+	.stab.indexstr 0 : { *(.stab.indexstr) }
+	.comment       0 : { *(.comment) }
+
+	/*
+	 * DWARF debug sections.
+	 * Symbols in the DWARF debugging sections are relative to the
+	 * beginning of the section so we begin them at 0.
+	 */
+	/* DWARF 1 */
+	.debug		0 : { *(.debug) }
+	.line		0 : { *(.line) }
+	/* GNU DWARF 1 extensions */
+	.debug_srcinfo	0 : { *(.debug_srcinfo) }
+	.debug_sfnames	0 : { *(.debug_sfnames) }
+	/* DWARF 1.1 and DWARF 2 */
+	.debug_aranges	0 : { *(.debug_aranges) }
+	.debug_pubnames 0 : { *(.debug_pubnames) }
+	/* DWARF 2 */
+	.debug_info	0 : { *(.debug_info .gnu.linkonce.wi.*) }
+	.debug_abbrev	0 : { *(.debug_abbrev) }
+	.debug_line	0 : { *(.debug_line) }
+	.debug_frame	0 : { *(.debug_frame) }
+	.debug_str	0 : { *(.debug_str) }
+	.debug_loc	0 : { *(.debug_loc) }
+	.debug_macinfo	0 : { *(.debug_macinfo) }
+	/* SGI/MIPS DWARF 2 extensions */
+	.debug_weaknames 0 : { *(.debug_weaknames) }
+	.debug_funcnames 0 : { *(.debug_funcnames) }
+	.debug_typenames 0 : { *(.debug_typenames) }
+	.debug_varnames  0 : { *(.debug_varnames) }
+	/* DWARF 3 */
+	.debug_pubtypes 0 : { *(.debug_pubtypes) }
+	.debug_ranges	0 : { *(.debug_ranges) }
+	.gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
+
+	. = ALIGN(4096);
+	PROVIDE(_vdso_data = .);
+
+	/DISCARD/	: {
+		*(.note.GNU-stack)
+		*(.branch_lt)
+		*(.data .data.* .gnu.linkonce.d.* .sdata*)
+		*(.bss .sbss .dynbss .dynsbss)
+	}
+}
+
+/*
+ * Very old versions of ld do not recognize this name token; use the constant.
+ */
+#define PT_GNU_EH_FRAME	0x6474e550
+
+/*
+ * We must supply the ELF program headers explicitly to get just one
+ * PT_LOAD segment, and set the flags explicitly to make segments read-only.
+ */
+PHDRS
+{
+	text		PT_LOAD FILEHDR PHDRS FLAGS(5);	/* PF_R|PF_X */
+	dynamic		PT_DYNAMIC FLAGS(4);		/* PF_R */
+	note		PT_NOTE FLAGS(4);		/* PF_R */
+	eh_frame_hdr	PT_GNU_EH_FRAME;
+}
+
+/*
+ * This controls what symbols we export from the DSO.
+ */
+VERSION
+{
+	VDSO_VERSION_STRING {
+	global:
+		/*
+		 * Has to be there for the kernel to find
+		 */
+		__kernel_gettimeofday;
+		__kernel_clock_gettime;
+		__kernel_clock_getres;
+
+	local: *;
+	};
+}
diff --git a/arch/s390/kernel/vdso64/vdso64_wrapper.S b/arch/s390/kernel/vdso64/vdso64_wrapper.S
new file mode 100644
index 000000000000..d8e2ac14d564
--- /dev/null
+++ b/arch/s390/kernel/vdso64/vdso64_wrapper.S
@@ -0,0 +1,13 @@
+#include <linux/init.h>
+#include <asm/page.h>
+
+	.section ".data.page_aligned"
+
+	.globl vdso64_start, vdso64_end
+	.balign PAGE_SIZE
+vdso64_start:
+	.incbin "arch/s390/kernel/vdso64/vdso64.so"
+	.balign PAGE_SIZE
+vdso64_end:
+
+	.previous
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index 0fa5dc5d68e1..75a6e62ea973 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -27,7 +27,6 @@
 static ext_int_info_t ext_int_info_timer;
 static DEFINE_PER_CPU(struct vtimer_queue, virt_cpu_timer);
 
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
 /*
  * Update process times based on virtual cpu times stored by entry.S
  * to the lowcore fields user_timer, system_timer & steal_clock.
@@ -125,16 +124,6 @@ static inline void set_vtimer(__u64 expires)
 	/* store expire time for this CPU timer */
 	__get_cpu_var(virt_cpu_timer).to_expire = expires;
 }
-#else
-static inline void set_vtimer(__u64 expires)
-{
-	S390_lowcore.last_update_timer = expires;
-	asm volatile ("SPT %0" : : "m" (S390_lowcore.last_update_timer));
-
-	/* store expire time for this CPU timer */
-	__get_cpu_var(virt_cpu_timer).to_expire = expires;
-}
-#endif
 
 void vtime_start_cpu_timer(void)
 {
diff --git a/arch/s390/mm/extmem.c b/arch/s390/mm/extmem.c
index 580fc64cc735..5c8457129603 100644
--- a/arch/s390/mm/extmem.c
+++ b/arch/s390/mm/extmem.c
@@ -7,6 +7,9 @@
  * (C) IBM Corporation 2002-2004
  */
 
+#define KMSG_COMPONENT "extmem"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/spinlock.h>
@@ -24,19 +27,6 @@
 #include <asm/cpcmd.h>
 #include <asm/setup.h>
 
-#define DCSS_DEBUG	/* Debug messages on/off */
-
-#define DCSS_NAME "extmem"
-#ifdef DCSS_DEBUG
-#define PRINT_DEBUG(x...)	printk(KERN_DEBUG DCSS_NAME " debug:" x)
-#else
-#define PRINT_DEBUG(x...)   do {} while (0)
-#endif
-#define PRINT_INFO(x...)	printk(KERN_INFO DCSS_NAME " info:" x)
-#define PRINT_WARN(x...)	printk(KERN_WARNING DCSS_NAME " warning:" x)
-#define PRINT_ERR(x...)		printk(KERN_ERR DCSS_NAME " error:" x)
-
-
 #define DCSS_LOADSHR    0x00
 #define DCSS_LOADNSR    0x04
 #define DCSS_PURGESEG   0x08
@@ -286,7 +276,7 @@ query_segment_type (struct dcss_segment *seg)
 		goto out_free;
 	}
 	if (diag_cc > 1) {
-		PRINT_WARN ("segment_type: diag returned error %ld\n", vmrc);
+		pr_warning("Querying a DCSS type failed with rc=%ld\n", vmrc);
 		rc = dcss_diag_translate_rc (vmrc);
 		goto out_free;
 	}
@@ -368,7 +358,6 @@ query_segment_type (struct dcss_segment *seg)
  * -EIO     : could not perform query diagnose
  * -ENOENT  : no such segment
  * -ENOTSUPP: multi-part segment cannot be used with linux
- * -ENOSPC  : segment cannot be used (overlaps with storage)
  * -ENOMEM  : out of memory
  * 0 .. 6   : type of segment as defined in include/asm-s390/extmem.h
  */
@@ -480,9 +469,8 @@ __segment_load (char *name, int do_nonshared, unsigned long *addr, unsigned long
 		goto out_resource;
 	}
 	if (diag_cc > 1) {
-		PRINT_WARN ("segment_load: could not load segment %s - "
-				"diag returned error (%ld)\n",
-				name, end_addr);
+		pr_warning("Loading DCSS %s failed with rc=%ld\n", name,
+			   end_addr);
 		rc = dcss_diag_translate_rc(end_addr);
 		dcss_diag(&purgeseg_scode, seg->dcss_name,
 				&dummy, &dummy);
@@ -496,15 +484,13 @@ __segment_load (char *name, int do_nonshared, unsigned long *addr, unsigned long
 	*addr = seg->start_addr;
 	*end  = seg->end;
 	if (do_nonshared)
-		PRINT_INFO ("segment_load: loaded segment %s range %p .. %p "
-				"type %s in non-shared mode\n", name,
-				(void*)seg->start_addr, (void*)seg->end,
-				segtype_string[seg->vm_segtype]);
+		pr_info("DCSS %s of range %p to %p and type %s loaded as "
+			"exclusive-writable\n", name, (void*) seg->start_addr,
+			(void*) seg->end, segtype_string[seg->vm_segtype]);
 	else {
-		PRINT_INFO ("segment_load: loaded segment %s range %p .. %p "
-				"type %s in shared mode\n", name,
-				(void*)seg->start_addr, (void*)seg->end,
-				segtype_string[seg->vm_segtype]);
+		pr_info("DCSS %s of range %p to %p and type %s loaded in "
+			"shared access mode\n", name, (void*) seg->start_addr,
+			(void*) seg->end, segtype_string[seg->vm_segtype]);
 	}
 	goto out;
  out_resource:
@@ -593,14 +579,14 @@ segment_modify_shared (char *name, int do_nonshared)
 		goto out_unlock;
 	}
 	if (do_nonshared == seg->do_nonshared) {
-		PRINT_INFO ("segment_modify_shared: not reloading segment %s"
-				" - already in requested mode\n",name);
+		pr_info("DCSS %s is already in the requested access "
+			"mode\n", name);
 		rc = 0;
 		goto out_unlock;
 	}
 	if (atomic_read (&seg->ref_count) != 1) {
-		PRINT_WARN ("segment_modify_shared: not reloading segment %s - "
-				"segment is in use by other driver(s)\n",name);
+		pr_warning("DCSS %s is in use and cannot be reloaded\n",
+			   name);
 		rc = -EAGAIN;
 		goto out_unlock;
 	}
@@ -613,8 +599,8 @@ segment_modify_shared (char *name, int do_nonshared)
 			seg->res->flags |= IORESOURCE_READONLY;
 
 	if (request_resource(&iomem_resource, seg->res)) {
-		PRINT_WARN("segment_modify_shared: could not reload segment %s"
-			   " - overlapping resources\n", name);
+		pr_warning("DCSS %s overlaps with used memory resources "
+			   "and cannot be reloaded\n", name);
 		rc = -EBUSY;
 		kfree(seg->res);
 		goto out_del_mem;
@@ -632,9 +618,8 @@ segment_modify_shared (char *name, int do_nonshared)
 		goto out_del_res;
 	}
 	if (diag_cc > 1) {
-		PRINT_WARN ("segment_modify_shared: could not reload segment %s"
-				" - diag returned error (%ld)\n",
-				name, end_addr);
+		pr_warning("Reloading DCSS %s failed with rc=%ld\n", name,
+			   end_addr);
 		rc = dcss_diag_translate_rc(end_addr);
 		goto out_del_res;
 	}
@@ -673,8 +658,7 @@ segment_unload(char *name)
 	mutex_lock(&dcss_lock);
 	seg = segment_by_name (name);
 	if (seg == NULL) {
-		PRINT_ERR ("could not find segment %s in segment_unload, "
-				"please report to linux390@de.ibm.com\n",name);
+		pr_err("Unloading unknown DCSS %s failed\n", name);
 		goto out_unlock;
 	}
 	if (atomic_dec_return(&seg->ref_count) != 0)
@@ -709,8 +693,7 @@ segment_save(char *name)
 	seg = segment_by_name (name);
 
 	if (seg == NULL) {
-		PRINT_ERR("could not find segment %s in segment_save, please "
-			  "report to linux390@de.ibm.com\n", name);
+		pr_err("Saving unknown DCSS %s failed\n", name);
 		goto out;
 	}
 
@@ -727,14 +710,14 @@ segment_save(char *name)
 	response = 0;
 	cpcmd(cmd1, NULL, 0, &response);
 	if (response) {
-		PRINT_ERR("segment_save: DEFSEG failed with response code %i\n",
-			  response);
+		pr_err("Saving a DCSS failed with DEFSEG response code "
+		       "%i\n", response);
 		goto out;
 	}
 	cpcmd(cmd2, NULL, 0, &response);
 	if (response) {
-		PRINT_ERR("segment_save: SAVESEG failed with response code %i\n",
-			  response);
+		pr_err("Saving a DCSS failed with SAVESEG response code "
+		       "%i\n", response);
 		goto out;
 	}
 out:
@@ -749,44 +732,41 @@ void segment_warning(int rc, char *seg_name)
 {
 	switch (rc) {
 	case -ENOENT:
-		PRINT_WARN("cannot load/query segment %s, "
-			   "does not exist\n", seg_name);
+		pr_err("DCSS %s cannot be loaded or queried\n", seg_name);
 		break;
 	case -ENOSYS:
-		PRINT_WARN("cannot load/query segment %s, "
-			   "not running on VM\n", seg_name);
+		pr_err("DCSS %s cannot be loaded or queried without "
+		       "z/VM\n", seg_name);
 		break;
 	case -EIO:
-		PRINT_WARN("cannot load/query segment %s, "
-			   "hardware error\n", seg_name);
+		pr_err("Loading or querying DCSS %s resulted in a "
+		       "hardware error\n", seg_name);
 		break;
 	case -ENOTSUPP:
-		PRINT_WARN("cannot load/query segment %s, "
-			   "is a multi-part segment\n", seg_name);
+		pr_err("DCSS %s has multiple page ranges and cannot be "
+		       "loaded or queried\n", seg_name);
 		break;
 	case -ENOSPC:
-		PRINT_WARN("cannot load/query segment %s, "
-			   "overlaps with storage\n", seg_name);
+		pr_err("DCSS %s overlaps with used storage and cannot "
+		       "be loaded\n", seg_name);
 		break;
 	case -EBUSY:
-		PRINT_WARN("cannot load/query segment %s, "
-			   "overlaps with already loaded dcss\n", seg_name);
+		pr_err("%s needs used memory resources and cannot be "
+		       "loaded or queried\n", seg_name);
 		break;
 	case -EPERM:
-		PRINT_WARN("cannot load/query segment %s, "
-			   "already loaded in incompatible mode\n", seg_name);
+		pr_err("DCSS %s is already loaded in a different access "
+		       "mode\n", seg_name);
 		break;
 	case -ENOMEM:
-		PRINT_WARN("cannot load/query segment %s, "
-			   "out of memory\n", seg_name);
+		pr_err("There is not enough memory to load or query "
+		       "DCSS %s\n", seg_name);
 		break;
 	case -ERANGE:
-		PRINT_WARN("cannot load/query segment %s, "
-			   "exceeds kernel mapping range\n", seg_name);
+		pr_err("DCSS %s exceeds the kernel mapping range (%lu) "
+		       "and cannot be loaded\n", seg_name, VMEM_MAX_PHYS);
 		break;
 	default:
-		PRINT_WARN("cannot load/query segment %s, "
-			   "return value %i\n", seg_name, rc);
 		break;
 	}
 }
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index ef3635b52fc0..0767827540b1 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -263,7 +263,7 @@ int s390_enable_sie(void)
 	/* lets check if we are allowed to replace the mm */
 	task_lock(tsk);
 	if (!tsk->mm || atomic_read(&tsk->mm->mm_users) > 1 ||
-	    tsk->mm != tsk->active_mm || tsk->mm->ioctx_list) {
+	    tsk->mm != tsk->active_mm || !hlist_empty(&tsk->mm->ioctx_list)) {
 		task_unlock(tsk);
 		return -EINVAL;
 	}
@@ -279,7 +279,7 @@ int s390_enable_sie(void)
 	/* Now lets check again if something happened */
 	task_lock(tsk);
 	if (!tsk->mm || atomic_read(&tsk->mm->mm_users) > 1 ||
-	    tsk->mm != tsk->active_mm || tsk->mm->ioctx_list) {
+	    tsk->mm != tsk->active_mm || !hlist_empty(&tsk->mm->ioctx_list)) {
 		mmput(mm);
 		task_unlock(tsk);
 		return -EINVAL;
author	Mike Travis <travis@sgi.com>	2008-12-31 17:34:16 -0800
committer	Ingo Molnar <mingo@elte.hu>	2009-01-03 18:53:31 +0100
commit	7eb19553369c46cc1fa64caf120cbcab1b597f7c (patch)
tree	ef1a3beae706b9497c845d0a2557ceb4d2754998 /arch/s390
parent	6092848a2a23b660150a38bc06f59d75838d70c8 (diff)
parent	8c384cdee3e04d6194a2c2b192b624754f990835 (diff)