Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 update from Martin Schwidefsky:
 "The most prominent change in this patch set is the software dirty bit
  patch for s390.  It removes __HAVE_ARCH_PAGE_TEST_AND_CLEAR_DIRTY and
  the page_test_and_clear_dirty primitive which makes the common memory
  management code a bit less obscure.

  Heiko fixed most of the PCI related fallout, more often than not
  missing GENERIC_HARDIRQS dependencies.  Notable is one of the 3270
  patches which adds an export to tty_io to be able to resize a tty.

  The rest is the usual bunch of cleanups and bug fixes."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (42 commits)
  s390/module: Add missing R_390_NONE relocation type
  drivers/gpio: add missing GENERIC_HARDIRQ dependency
  drivers/input: add couple of missing GENERIC_HARDIRQS dependencies
  s390/cleanup: rename SPP to LPP
  s390/mm: implement software dirty bits
  s390/mm: Fix crst upgrade of mmap with MAP_FIXED
  s390/linker skript: discard exit.data at runtime
  drivers/media: add missing GENERIC_HARDIRQS dependency
  s390/bpf,jit: add vlan tag support
  drivers/net,AT91RM9200: add missing GENERIC_HARDIRQS dependency
  iucv: fix kernel panic at reboot
  s390/Kconfig: sort list of arch selected config options
  phylib: remove !S390 dependeny from Kconfig
  uio: remove !S390 dependency from Kconfig
  dasd: fix sysfs cleanup in dasd_generic_remove
  s390/pci: fix hotplug module init
  s390/pci: cleanup clp page allocation
  s390/pci: cleanup clp inline assembly
  s390/perf: cpum_cf: fallback to software sampling events
  s390/mm: provide PAGE_SHARED define
  ...

12 files changed, 144 insertions, 93 deletions

diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index 4e8215e0d4b6..09a94cd9debc 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -867,7 +867,7 @@ static inline void
 debug_finish_entry(debug_info_t * id, debug_entry_t* active, int level,
 			int exception)
 {
-	active->id.stck = get_clock();
+	active->id.stck = get_tod_clock();
 	active->id.fields.cpuid = smp_processor_id();
 	active->caller = __builtin_return_address(0);
 	active->id.fields.exception = exception;
diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c
index a7f9abd98cf2..c50665fe9435 100644
--- a/arch/s390/kernel/dis.c
+++ b/arch/s390/kernel/dis.c
@@ -840,7 +840,6 @@ static struct insn opcode_b2[] = {
 	{ "stcke", 0x78, INSTR_S_RD },
 	{ "sacf", 0x79, INSTR_S_RD },
 	{ "stsi", 0x7d, INSTR_S_RD },
-	{ "spp", 0x80, INSTR_S_RD },
 	{ "srnm", 0x99, INSTR_S_RD },
 	{ "stfpc", 0x9c, INSTR_S_RD },
 	{ "lfpc", 0x9d, INSTR_S_RD },
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 1f0eee9e7daa..bda011e2f8ae 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -47,10 +47,10 @@ static void __init reset_tod_clock(void)
 {
 	u64 time;
 
-	if (store_clock(&time) == 0)
+	if (store_tod_clock(&time) == 0)
 		return;
 	/* TOD clock not running. Set the clock to Unix Epoch. */
-	if (set_clock(TOD_UNIX_EPOCH) != 0 || store_clock(&time) != 0)
+	if (set_tod_clock(TOD_UNIX_EPOCH) != 0 || store_tod_clock(&time) != 0)
 		disabled_wait(0);
 
 	sched_clock_base_cc = TOD_UNIX_EPOCH;
@@ -173,7 +173,7 @@ static noinline __init void create_kernel_nss(void)
 	}
 
 	/* re-initialize cputime accounting. */
-	sched_clock_base_cc = get_clock();
+	sched_clock_base_cc = get_tod_clock();
 	S390_lowcore.last_update_clock = sched_clock_base_cc;
 	S390_lowcore.last_update_timer = 0x7fffffffffffffffULL;
 	S390_lowcore.user_timer = 0;
@@ -381,7 +381,7 @@ static __init void detect_machine_facilities(void)
 	if (test_facility(27))
 		S390_lowcore.machine_flags |= MACHINE_FLAG_MVCOS;
 	if (test_facility(40))
-		S390_lowcore.machine_flags |= MACHINE_FLAG_SPP;
+		S390_lowcore.machine_flags |= MACHINE_FLAG_LPP;
 	if (test_facility(50) && test_facility(73))
 		S390_lowcore.machine_flags |= MACHINE_FLAG_TE;
 	if (test_facility(66))
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index 6d34e0c97a39..9c837c101297 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -72,9 +72,9 @@ _TIF_EXIT_SIE = (_TIF_SIGPENDING | _TIF_NEED_RESCHED | _TIF_MCCK_PENDING)
 #endif
 	.endm
 
-	.macro SPP newpp
+	.macro LPP newpp
 #if defined(CONFIG_KVM) || defined(CONFIG_KVM_MODULE)
-	tm	__LC_MACHINE_FLAGS+6,0x20	# MACHINE_FLAG_SPP
+	tm	__LC_MACHINE_FLAGS+6,0x20	# MACHINE_FLAG_LPP
 	jz	.+8
 	.insn	s,0xb2800000,\newpp
 #endif
@@ -96,7 +96,7 @@ _TIF_EXIT_SIE = (_TIF_SIGPENDING | _TIF_NEED_RESCHED | _TIF_MCCK_PENDING)
 	jhe	.+22
 	.endif
 	lg	%r9,BASED(.Lsie_loop)
-	SPP	BASED(.Lhost_id)	# set host id
+	LPP	BASED(.Lhost_id)	# set host id
 #endif
 	.endm
 
@@ -967,10 +967,10 @@ sie_loop:
 	lctlg	%c1,%c1,__GMAP_ASCE(%r14)	# load primary asce
 sie_gmap:
 	lg	%r14,__SF_EMPTY(%r15)		# get control block pointer
-	SPP	__SF_EMPTY(%r15)		# set guest id
+	LPP	__SF_EMPTY(%r15)		# set guest id
 	sie	0(%r14)
 sie_done:
-	SPP	__SF_EMPTY+16(%r15)		# set host id
+	LPP	__SF_EMPTY+16(%r15)		# set host id
 	lg	%r14,__LC_THREAD_INFO		# pointer thread_info struct
 sie_exit:
 	lctlg	%c1,%c1,__LC_USER_ASCE		# load primary asce
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 6ffcd3203215..d8a6a385d048 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -1414,6 +1414,16 @@ static struct kobj_attribute dump_type_attr =
 
 static struct kset *dump_kset;
 
+static void diag308_dump(void *dump_block)
+{
+	diag308(DIAG308_SET, dump_block);
+	while (1) {
+		if (diag308(DIAG308_DUMP, NULL) != 0x302)
+			break;
+		udelay_simple(USEC_PER_SEC);
+	}
+}
+
 static void __dump_run(void *unused)
 {
 	struct ccw_dev_id devid;
@@ -1432,12 +1442,10 @@ static void __dump_run(void *unused)
 		__cpcmd(buf, NULL, 0, NULL);
 		break;
 	case DUMP_METHOD_CCW_DIAG:
-		diag308(DIAG308_SET, dump_block_ccw);
-		diag308(DIAG308_DUMP, NULL);
+		diag308_dump(dump_block_ccw);
 		break;
 	case DUMP_METHOD_FCP_DIAG:
-		diag308(DIAG308_SET, dump_block_fcp);
-		diag308(DIAG308_DUMP, NULL);
+		diag308_dump(dump_block_fcp);
 		break;
 	default:
 		break;
diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
index 4610deafd953..f750bd7bd2c2 100644
--- a/arch/s390/kernel/module.c
+++ b/arch/s390/kernel/module.c
@@ -65,8 +65,7 @@ void module_free(struct module *mod, void *module_region)
 	vfree(module_region);
 }
 
-static void
-check_rela(Elf_Rela *rela, struct module *me)
+static void check_rela(Elf_Rela *rela, struct module *me)
 {
 	struct mod_arch_syminfo *info;
 
@@ -115,9 +114,8 @@ check_rela(Elf_Rela *rela, struct module *me)
  * Account for GOT and PLT relocations. We can't add sections for
  * got and plt but we can increase the core module size.
  */
-int
-module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
-			  char *secstrings, struct module *me)
+int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
+			      char *secstrings, struct module *me)
 {
 	Elf_Shdr *symtab;
 	Elf_Sym *symbols;
@@ -179,13 +177,52 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
 	return 0;
 }
 
-static int
-apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab, 
-	   struct module *me)
+static int apply_rela_bits(Elf_Addr loc, Elf_Addr val,
+			   int sign, int bits, int shift)
+{
+	unsigned long umax;
+	long min, max;
+
+	if (val & ((1UL << shift) - 1))
+		return -ENOEXEC;
+	if (sign) {
+		val = (Elf_Addr)(((long) val) >> shift);
+		min = -(1L << (bits - 1));
+		max = (1L << (bits - 1)) - 1;
+		if ((long) val < min || (long) val > max)
+			return -ENOEXEC;
+	} else {
+		val >>= shift;
+		umax = ((1UL << (bits - 1)) << 1) - 1;
+		if ((unsigned long) val > umax)
+			return -ENOEXEC;
+	}
+
+	if (bits == 8)
+		*(unsigned char *) loc = val;
+	else if (bits == 12)
+		*(unsigned short *) loc = (val & 0xfff) |
+			(*(unsigned short *) loc & 0xf000);
+	else if (bits == 16)
+		*(unsigned short *) loc = val;
+	else if (bits == 20)
+		*(unsigned int *) loc = (val & 0xfff) << 16 |
+			(val & 0xff000) >> 4 |
+			(*(unsigned int *) loc & 0xf00000ff);
+	else if (bits == 32)
+		*(unsigned int *) loc = val;
+	else if (bits == 64)
+		*(unsigned long *) loc = val;
+	return 0;
+}
+
+static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
+		      const char *strtab, struct module *me)
 {
 	struct mod_arch_syminfo *info;
 	Elf_Addr loc, val;
 	int r_type, r_sym;
+	int rc;
 
 	/* This is where to make the change */
 	loc = base + rela->r_offset;
@@ -197,6 +234,9 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
 	val = symtab[r_sym].st_value;
 
 	switch (r_type) {
+	case R_390_NONE:	/* No relocation.  */
+		rc = 0;
+		break;
 	case R_390_8:		/* Direct 8 bit.   */
 	case R_390_12:		/* Direct 12 bit.  */
 	case R_390_16:		/* Direct 16 bit.  */
@@ -205,20 +245,17 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
 	case R_390_64:		/* Direct 64 bit.  */
 		val += rela->r_addend;
 		if (r_type == R_390_8)
-			*(unsigned char *) loc = val;
+			rc = apply_rela_bits(loc, val, 0, 8, 0);
 		else if (r_type == R_390_12)
-			*(unsigned short *) loc = (val & 0xfff) |
-				(*(unsigned short *) loc & 0xf000);
+			rc = apply_rela_bits(loc, val, 0, 12, 0);
 		else if (r_type == R_390_16)
-			*(unsigned short *) loc = val;
+			rc = apply_rela_bits(loc, val, 0, 16, 0);
 		else if (r_type == R_390_20)
-			*(unsigned int *) loc =
-				(*(unsigned int *) loc & 0xf00000ff) |
-				(val & 0xfff) << 16 | (val & 0xff000) >> 4;
+			rc = apply_rela_bits(loc, val, 1, 20, 0);
 		else if (r_type == R_390_32)
-			*(unsigned int *) loc = val;
+			rc = apply_rela_bits(loc, val, 0, 32, 0);
 		else if (r_type == R_390_64)
-			*(unsigned long *) loc = val;
+			rc = apply_rela_bits(loc, val, 0, 64, 0);
 		break;
 	case R_390_PC16:	/* PC relative 16 bit.  */
 	case R_390_PC16DBL:	/* PC relative 16 bit shifted by 1.  */
@@ -227,15 +264,15 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
 	case R_390_PC64:	/* PC relative 64 bit.	*/
 		val += rela->r_addend - loc;
 		if (r_type == R_390_PC16)
-			*(unsigned short *) loc = val;
+			rc = apply_rela_bits(loc, val, 1, 16, 0);
 		else if (r_type == R_390_PC16DBL)
-			*(unsigned short *) loc = val >> 1;
+			rc = apply_rela_bits(loc, val, 1, 16, 1);
 		else if (r_type == R_390_PC32DBL)
-			*(unsigned int *) loc = val >> 1;
+			rc = apply_rela_bits(loc, val, 1, 32, 1);
 		else if (r_type == R_390_PC32)
-			*(unsigned int *) loc = val;
+			rc = apply_rela_bits(loc, val, 1, 32, 0);
 		else if (r_type == R_390_PC64)
-			*(unsigned long *) loc = val;
+			rc = apply_rela_bits(loc, val, 1, 64, 0);
 		break;
 	case R_390_GOT12:	/* 12 bit GOT offset.  */
 	case R_390_GOT16:	/* 16 bit GOT offset.  */
@@ -260,26 +297,24 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
 		val = info->got_offset + rela->r_addend;
 		if (r_type == R_390_GOT12 ||
 		    r_type == R_390_GOTPLT12)
-			*(unsigned short *) loc = (val & 0xfff) |
-				(*(unsigned short *) loc & 0xf000);
+			rc = apply_rela_bits(loc, val, 0, 12, 0);
 		else if (r_type == R_390_GOT16 ||
 			 r_type == R_390_GOTPLT16)
-			*(unsigned short *) loc = val;
+			rc = apply_rela_bits(loc, val, 0, 16, 0);
 		else if (r_type == R_390_GOT20 ||
 			 r_type == R_390_GOTPLT20)
-			*(unsigned int *) loc =
-				(*(unsigned int *) loc & 0xf00000ff) |
-				(val & 0xfff) << 16 | (val & 0xff000) >> 4;
+			rc = apply_rela_bits(loc, val, 1, 20, 0);
 		else if (r_type == R_390_GOT32 ||
 			 r_type == R_390_GOTPLT32)
-			*(unsigned int *) loc = val;
-		else if (r_type == R_390_GOTENT ||
-			 r_type == R_390_GOTPLTENT)
-			*(unsigned int *) loc =
-				(val + (Elf_Addr) me->module_core - loc) >> 1;
+			rc = apply_rela_bits(loc, val, 0, 32, 0);
 		else if (r_type == R_390_GOT64 ||
 			 r_type == R_390_GOTPLT64)
-			*(unsigned long *) loc = val;
+			rc = apply_rela_bits(loc, val, 0, 64, 0);
+		else if (r_type == R_390_GOTENT ||
+			 r_type == R_390_GOTPLTENT) {
+			val += (Elf_Addr) me->module_core - loc;
+			rc = apply_rela_bits(loc, val, 1, 32, 1);
+		}
 		break;
 	case R_390_PLT16DBL:	/* 16 bit PC rel. PLT shifted by 1.  */
 	case R_390_PLT32DBL:	/* 32 bit PC rel. PLT shifted by 1.  */
@@ -321,17 +356,17 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
 			val += rela->r_addend - loc;
 		}
 		if (r_type == R_390_PLT16DBL)
-			*(unsigned short *) loc = val >> 1;
+			rc = apply_rela_bits(loc, val, 1, 16, 1);
 		else if (r_type == R_390_PLTOFF16)
-			*(unsigned short *) loc = val;
+			rc = apply_rela_bits(loc, val, 0, 16, 0);
 		else if (r_type == R_390_PLT32DBL)
-			*(unsigned int *) loc = val >> 1;
+			rc = apply_rela_bits(loc, val, 1, 32, 1);
 		else if (r_type == R_390_PLT32 ||
 			 r_type == R_390_PLTOFF32)
-			*(unsigned int *) loc = val;
+			rc = apply_rela_bits(loc, val, 0, 32, 0);
 		else if (r_type == R_390_PLT64 ||
 			 r_type == R_390_PLTOFF64)
-			*(unsigned long *) loc = val;
+			rc = apply_rela_bits(loc, val, 0, 64, 0);
 		break;
 	case R_390_GOTOFF16:	/* 16 bit offset to GOT.  */
 	case R_390_GOTOFF32:	/* 32 bit offset to GOT.  */
@@ -339,20 +374,20 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
 		val = val + rela->r_addend -
 			((Elf_Addr) me->module_core + me->arch.got_offset);
 		if (r_type == R_390_GOTOFF16)
-			*(unsigned short *) loc = val;
+			rc = apply_rela_bits(loc, val, 0, 16, 0);
 		else if (r_type == R_390_GOTOFF32)
-			*(unsigned int *) loc = val;
+			rc = apply_rela_bits(loc, val, 0, 32, 0);
 		else if (r_type == R_390_GOTOFF64)
-			*(unsigned long *) loc = val;
+			rc = apply_rela_bits(loc, val, 0, 64, 0);
 		break;
 	case R_390_GOTPC:	/* 32 bit PC relative offset to GOT. */
 	case R_390_GOTPCDBL:	/* 32 bit PC rel. off. to GOT shifted by 1. */
 		val = (Elf_Addr) me->module_core + me->arch.got_offset +
 			rela->r_addend - loc;
 		if (r_type == R_390_GOTPC)
-			*(unsigned int *) loc = val;
+			rc = apply_rela_bits(loc, val, 1, 32, 0);
 		else if (r_type == R_390_GOTPCDBL)
-			*(unsigned int *) loc = val >> 1;
+			rc = apply_rela_bits(loc, val, 1, 32, 1);
 		break;
 	case R_390_COPY:
 	case R_390_GLOB_DAT:	/* Create GOT entry.  */
@@ -360,19 +395,25 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
 	case R_390_RELATIVE:	/* Adjust by program base.  */
 		/* Only needed if we want to support loading of 
 		   modules linked with -shared. */
-		break;
+		return -ENOEXEC;
 	default:
-		printk(KERN_ERR "module %s: Unknown relocation: %u\n",
+		printk(KERN_ERR "module %s: unknown relocation: %u\n",
 		       me->name, r_type);
 		return -ENOEXEC;
 	}
+	if (rc) {
+		printk(KERN_ERR "module %s: relocation error for symbol %s "
+		       "(r_type %i, value 0x%lx)\n",
+		       me->name, strtab + symtab[r_sym].st_name,
+		       r_type, (unsigned long) val);
+		return rc;
+	}
 	return 0;
 }
 
-int
-apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
-		   unsigned int symindex, unsigned int relsec,
-		   struct module *me)
+int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
+		       unsigned int symindex, unsigned int relsec,
+		       struct module *me)
 {
 	Elf_Addr base;
 	Elf_Sym *symtab;
@@ -388,7 +429,7 @@ apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
 	n = sechdrs[relsec].sh_size / sizeof(Elf_Rela);
 
 	for (i = 0; i < n; i++, rela++) {
-		rc = apply_rela(rela, base, symtab, me);
+		rc = apply_rela(rela, base, symtab, strtab, me);
 		if (rc)
 			return rc;
 	}
diff --git a/arch/s390/kernel/nmi.c b/arch/s390/kernel/nmi.c
index 7918fbea36bb..504175ebf8b0 100644
--- a/arch/s390/kernel/nmi.c
+++ b/arch/s390/kernel/nmi.c
@@ -293,7 +293,7 @@ void notrace s390_do_machine_check(struct pt_regs *regs)
 			 * retry this instruction.
 			 */
 			spin_lock(&ipd_lock);
-			tmp = get_clock();
+			tmp = get_tod_clock();
 			if (((tmp - last_ipd) >> 12) < MAX_IPD_TIME)
 				ipd_count++;
 			else
diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c
index 86ec7447e1f5..390d9ae57bb2 100644
--- a/arch/s390/kernel/perf_cpum_cf.c
+++ b/arch/s390/kernel/perf_cpum_cf.c
@@ -367,13 +367,6 @@ static int __hw_perf_event_init(struct perf_event *event)
 	if (ev >= PERF_CPUM_CF_MAX_CTR)
 		return -EINVAL;
 
-	/* The CPU measurement counter facility does not have any interrupts
-	 * to do sampling.  Sampling must be provided by external means,
-	 * for example, by timers.
-	 */
-	if (hwc->sample_period)
-		return -EINVAL;
-
 	/* Use the hardware perf event structure to store the counter number
 	 * in 'config' member and the counter set to which the counter belongs
 	 * in the 'config_base'.  The counter set (config_base) is then used
@@ -418,6 +411,12 @@ static int cpumf_pmu_event_init(struct perf_event *event)
 	case PERF_TYPE_HARDWARE:
 	case PERF_TYPE_HW_CACHE:
 	case PERF_TYPE_RAW:
+		/* The CPU measurement counter facility does not have overflow
+		 * interrupts to do sampling.  Sampling must be provided by
+		 * external means, for example, by timers.
+		 */
+		if (is_sampling_event(event))
+			return -ENOENT;
 		err = __hw_perf_event_init(event);
 		break;
 	default:
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 7433a2f9e5cc..549c9d173c0f 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -365,16 +365,16 @@ void smp_emergency_stop(cpumask_t *cpumask)
 	u64 end;
 	int cpu;
 
-	end = get_clock() + (1000000UL << 12);
+	end = get_tod_clock() + (1000000UL << 12);
 	for_each_cpu(cpu, cpumask) {
 		struct pcpu *pcpu = pcpu_devices + cpu;
 		set_bit(ec_stop_cpu, &pcpu->ec_mask);
 		while (__pcpu_sigp(pcpu->address, SIGP_EMERGENCY_SIGNAL,
 				   0, NULL) == SIGP_CC_BUSY &&
-		       get_clock() < end)
+		       get_tod_clock() < end)
 			cpu_relax();
 	}
-	while (get_clock() < end) {
+	while (get_tod_clock() < end) {
 		for_each_cpu(cpu, cpumask)
 			if (pcpu_stopped(pcpu_devices + cpu))
 				cpumask_clear_cpu(cpu, cpumask);
@@ -694,7 +694,7 @@ static void __init smp_detect_cpus(void)
  */
 static void __cpuinit smp_start_secondary(void *cpuvoid)
 {
-	S390_lowcore.last_update_clock = get_clock();
+	S390_lowcore.last_update_clock = get_tod_clock();
 	S390_lowcore.restart_stack = (unsigned long) restart_stack;
 	S390_lowcore.restart_fn = (unsigned long) do_restart;
 	S390_lowcore.restart_data = 0;
@@ -947,7 +947,7 @@ static ssize_t show_idle_time(struct device *dev,
 	unsigned int sequence;
 
 	do {
-		now = get_clock();
+		now = get_tod_clock();
 		sequence = ACCESS_ONCE(idle->sequence);
 		idle_time = ACCESS_ONCE(idle->idle_time);
 		idle_enter = ACCESS_ONCE(idle->clock_idle_enter);
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 0aa98db8a80d..876546b9cfa1 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -63,7 +63,7 @@ static DEFINE_PER_CPU(struct clock_event_device, comparators);
  */
 unsigned long long notrace __kprobes sched_clock(void)
 {
-	return tod_to_ns(get_clock_monotonic());
+	return tod_to_ns(get_tod_clock_monotonic());
 }
 
 /*
@@ -194,7 +194,7 @@ static void stp_reset(void);
 
 void read_persistent_clock(struct timespec *ts)
 {
-	tod_to_timeval(get_clock() - TOD_UNIX_EPOCH, ts);
+	tod_to_timeval(get_tod_clock() - TOD_UNIX_EPOCH, ts);
 }
 
 void read_boot_clock(struct timespec *ts)
@@ -204,7 +204,7 @@ void read_boot_clock(struct timespec *ts)
 
 static cycle_t read_tod_clock(struct clocksource *cs)
 {
-	return get_clock();
+	return get_tod_clock();
 }
 
 static struct clocksource clocksource_tod = {
@@ -342,7 +342,7 @@ int get_sync_clock(unsigned long long *clock)
 
 	sw_ptr = &get_cpu_var(clock_sync_word);
 	sw0 = atomic_read(sw_ptr);
-	*clock = get_clock();
+	*clock = get_tod_clock();
 	sw1 = atomic_read(sw_ptr);
 	put_cpu_var(clock_sync_word);
 	if (sw0 == sw1 && (sw0 & 0x80000000U))
@@ -486,7 +486,7 @@ static void etr_reset(void)
 		.p0 = 0, .p1 = 0, ._pad1 = 0, .ea = 0,
 		.es = 0, .sl = 0 };
 	if (etr_setr(&etr_eacr) == 0) {
-		etr_tolec = get_clock();
+		etr_tolec = get_tod_clock();
 		set_bit(CLOCK_SYNC_HAS_ETR, &clock_sync_flags);
 		if (etr_port0_online && etr_port1_online)
 			set_bit(CLOCK_SYNC_ETR, &clock_sync_flags);
@@ -768,8 +768,8 @@ static int etr_sync_clock(void *data)
 	__ctl_set_bit(14, 21);
 	__ctl_set_bit(0, 29);
 	clock = ((unsigned long long) (aib->edf2.etv + 1)) << 32;
-	old_clock = get_clock();
-	if (set_clock(clock) == 0) {
+	old_clock = get_tod_clock();
+	if (set_tod_clock(clock) == 0) {
 		__udelay(1);	/* Wait for the clock to start. */
 		__ctl_clear_bit(0, 29);
 		__ctl_clear_bit(14, 21);
@@ -845,7 +845,7 @@ static struct etr_eacr etr_handle_events(struct etr_eacr eacr)
 			 * assume that this can have caused an stepping
 			 * port switch.
 			 */
-			etr_tolec = get_clock();
+			etr_tolec = get_tod_clock();
 		eacr.p0 = etr_port0_online;
 		if (!eacr.p0)
 			eacr.e0 = 0;
@@ -858,7 +858,7 @@ static struct etr_eacr etr_handle_events(struct etr_eacr eacr)
 			 * assume that this can have caused an stepping
 			 * port switch.
 			 */
-			etr_tolec = get_clock();
+			etr_tolec = get_tod_clock();
 		eacr.p1 = etr_port1_online;
 		if (!eacr.p1)
 			eacr.e1 = 0;
@@ -974,7 +974,7 @@ static void etr_update_eacr(struct etr_eacr eacr)
 	etr_eacr = eacr;
 	etr_setr(&etr_eacr);
 	if (dp_changed)
-		etr_tolec = get_clock();
+		etr_tolec = get_tod_clock();
 }
 
 /*
@@ -1012,7 +1012,7 @@ static void etr_work_fn(struct work_struct *work)
 	/* Store aib to get the current ETR status word. */
 	BUG_ON(etr_stetr(&aib) != 0);
 	etr_port0.esw = etr_port1.esw = aib.esw;	/* Copy status word. */
-	now = get_clock();
+	now = get_tod_clock();
 
 	/*
 	 * Update the port information if the last stepping port change
@@ -1537,10 +1537,10 @@ static int stp_sync_clock(void *data)
 	if (stp_info.todoff[0] || stp_info.todoff[1] ||
 	    stp_info.todoff[2] || stp_info.todoff[3] ||
 	    stp_info.tmd != 2) {
-		old_clock = get_clock();
+		old_clock = get_tod_clock();
 		rc = chsc_sstpc(stp_page, STP_OP_SYNC, 0);
 		if (rc == 0) {
-			delta = adjust_time(old_clock, get_clock(), 0);
+			delta = adjust_time(old_clock, get_tod_clock(), 0);
 			fixup_clock_comparator(delta);
 			rc = chsc_sstpi(stp_page, &stp_info,
 					sizeof(struct stp_sstpi));
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
index 79cb51adc741..35b13ed0af5f 100644
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -75,6 +75,10 @@ SECTIONS
 		EXIT_TEXT
 	}
 
+	.exit.data : {
+		EXIT_DATA
+	}
+
 	/* early.c uses stsi, which requires page aligned data. */
 	. = ALIGN(PAGE_SIZE);
 	INIT_DATA_SECTION(0x100)
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index ce9cc5aa2033..a0042acbd989 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -191,7 +191,7 @@ cputime64_t s390_get_idle_time(int cpu)
 	unsigned int sequence;
 
 	do {
-		now = get_clock();
+		now = get_tod_clock();
 		sequence = ACCESS_ONCE(idle->sequence);
 		idle_enter = ACCESS_ONCE(idle->clock_idle_enter);
 		idle_exit = ACCESS_ONCE(idle->clock_idle_exit);