Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Makefile

@@ -1,7 +1,7 @@
 VERSION = 3
 PATCHLEVEL = 4
 SUBLEVEL = 0
-EXTRAVERSION = -rc7
+EXTRAVERSION =
 NAME = Saber-toothed Squirrel
 
 # *DOCUMENTATION*
@@ -442,7 +442,7 @@ asm-generic:
 
 no-dot-config-targets := clean mrproper distclean \
 			 cscope gtags TAGS tags help %docs check% coccicheck \
-			 include/linux/version.h headers_% archheaders \
+			 include/linux/version.h headers_% archheaders archscripts \
 			 kernelversion %src-pkg
 
 config-targets := 0
@@ -979,7 +979,7 @@ prepare1: prepare2 include/linux/version.h include/generated/utsrelease.h \
                    include/config/auto.conf
 	$(cmd_crmodverdir)
 
-archprepare: archheaders prepare1 scripts_basic
+archprepare: archheaders archscripts prepare1 scripts_basic
 
 prepare0: archprepare FORCE
 	$(Q)$(MAKE) $(build)=.
@@ -1049,8 +1049,11 @@ hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm)
 PHONY += archheaders
 archheaders:
 
+PHONY += archscripts
+archscripts:
+
 PHONY += __headers
-__headers: include/linux/version.h scripts_basic asm-generic archheaders FORCE
+__headers: include/linux/version.h scripts_basic asm-generic archheaders archscripts FORCE
 	$(Q)$(MAKE) $(build)=scripts build_unifdef
 
 PHONY += headers_install_all

arch/arm/mach-prima2/irq.c

@@ -42,7 +42,8 @@ sirfsoc_alloc_gc(void __iomem *base, unsigned int irq_start, unsigned int num)
 static __init void sirfsoc_irq_init(void)
 {
 	sirfsoc_alloc_gc(sirfsoc_intc_base, 0, 32);
-	sirfsoc_alloc_gc(sirfsoc_intc_base + 4, 32, SIRFSOC_INTENAL_IRQ_END - 32);
+	sirfsoc_alloc_gc(sirfsoc_intc_base + 4, 32,
+			SIRFSOC_INTENAL_IRQ_END + 1 - 32);
 
 	writel_relaxed(0, sirfsoc_intc_base + SIRFSOC_INT_RISC_LEVEL0);
 	writel_relaxed(0, sirfsoc_intc_base + SIRFSOC_INT_RISC_LEVEL1);
@@ -68,7 +69,8 @@ void __init sirfsoc_of_irq_init(void)
 	if (!sirfsoc_intc_base)
 		panic("unable to map intc cpu registers\n");
 
-	irq_domain_add_legacy(np, 32, 0, 0, &irq_domain_simple_ops, NULL);
+	irq_domain_add_legacy(np, SIRFSOC_INTENAL_IRQ_END + 1, 0, 0,
+		&irq_domain_simple_ops, NULL);
 
 	of_node_put(np);
 

arch/arm/mach-tegra/flowctrl.c

@@ -53,10 +53,10 @@ static void flowctrl_update(u8 offset, u32 value)
 
 void flowctrl_write_cpu_csr(unsigned int cpuid, u32 value)
 {
-	return flowctrl_update(flowctrl_offset_halt_cpu[cpuid], value);
+	return flowctrl_update(flowctrl_offset_cpu_csr[cpuid], value);
 }
 
 void flowctrl_write_cpu_halt(unsigned int cpuid, u32 value)
 {
-	return flowctrl_update(flowctrl_offset_cpu_csr[cpuid], value);
+	return flowctrl_update(flowctrl_offset_halt_cpu[cpuid], value);
 }

arch/arm/mm/fault.c

@@ -247,7 +247,9 @@ good_area:
 	return handle_mm_fault(mm, vma, addr & PAGE_MASK, flags);
 
 check_stack:
-	if (vma->vm_flags & VM_GROWSDOWN && !expand_stack(vma, addr))
+	/* Don't allow expansion below FIRST_USER_ADDRESS */
+	if (vma->vm_flags & VM_GROWSDOWN &&
+	    addr >= FIRST_USER_ADDRESS && !expand_stack(vma, addr))
 		goto good_area;
 out:
 	return fault;

arch/arm/mm/mmu.c

@@ -489,6 +489,7 @@ static void __init build_mem_type_table(void)
 	 */
 	for (i = 0; i < ARRAY_SIZE(mem_types); i++) {
 		mem_types[i].prot_pte |= PTE_EXT_AF;
+		if (mem_types[i].prot_sect)
 			mem_types[i].prot_sect |= PMD_SECT_AF;
 	}
 	kern_pgprot |= PTE_EXT_AF;

arch/arm/vfp/vfpmodule.c

@@ -11,6 +11,7 @@
 #include <linux/types.h>
 #include <linux/cpu.h>
 #include <linux/cpu_pm.h>
+#include <linux/hardirq.h>
 #include <linux/kernel.h>
 #include <linux/notifier.h>
 #include <linux/signal.h>
@@ -432,7 +433,10 @@ void VFP_bounce(u32 trigger, u32 fpexc, struct pt_regs *regs)
 
 static void vfp_enable(void *unused)
 {
-	u32 access = get_copro_access();
+	u32 access;
+
+	BUG_ON(preemptible());
+	access = get_copro_access();
 
 	/*
 	 * Enable full access to VFP (cp10 and cp11)
@@ -573,12 +577,6 @@ int vfp_preserve_user_clear_hwstate(struct user_vfp __user *ufp,
 	 * entry.
 	 */
 	hwstate->fpscr &= ~(FPSCR_LENGTH_MASK | FPSCR_STRIDE_MASK);
-
-	/*
-	 * Disable VFP in the hwstate so that we can detect if it gets
-	 * used.
-	 */
-	hwstate->fpexc &= ~FPEXC_EN;
 	return 0;
 }
 
@@ -591,11 +589,7 @@ int vfp_restore_user_hwstate(struct user_vfp __user *ufp,
 	unsigned long fpexc;
 	int err = 0;
 
-	/*
+	/* Disable VFP to avoid corrupting the new thread state. */
-	 * If VFP has been used, then disable it to avoid corrupting
-	 * the new thread state.
-	 */
-	if (hwstate->fpexc & FPEXC_EN)
 	vfp_flush_hwstate(thread);
 
 	/*
@@ -657,7 +651,7 @@ static int __init vfp_init(void)
 	unsigned int cpu_arch = cpu_architecture();
 
 	if (cpu_arch >= CPU_ARCH_ARMv6)
-		vfp_enable(NULL);
+		on_each_cpu(vfp_enable, NULL, 1);
 
 	/*
 	 * First check that there is a VFP that we can use.
@@ -678,8 +672,6 @@ static int __init vfp_init(void)
 	} else {
 		hotcpu_notifier(vfp_hotplug, 0);
 
-		smp_call_function(vfp_enable, NULL, 1);
-
 		VFP_arch = (vfpsid & FPSID_ARCH_MASK) >> FPSID_ARCH_BIT;  /* Extract the architecture version */
 		printk("implementor %02x architecture %d part %02x variant %x rev %x\n",
 			(vfpsid & FPSID_IMPLEMENTER_MASK) >> FPSID_IMPLEMENTER_BIT,

arch/frv/include/asm/processor.h

@@ -135,10 +135,6 @@ unsigned long get_wchan(struct task_struct *p);
 #define	KSTK_EIP(tsk)	((tsk)->thread.frame0->pc)
 #define	KSTK_ESP(tsk)	((tsk)->thread.frame0->sp)
 
-/* Allocation and freeing of basic task resources. */
-extern struct task_struct *alloc_task_struct_node(int node);
-extern void free_task_struct(struct task_struct *p);
-
 #define cpu_relax()    barrier()
 
 /* data cache prefetch */

arch/parisc/include/asm/prefetch.h

@@ -21,7 +21,12 @@
 #define ARCH_HAS_PREFETCH
 static inline void prefetch(const void *addr)
 {
-	__asm__("ldw 0(%0), %%r0" : : "r" (addr));
+	__asm__(
+#ifndef CONFIG_PA20
+		/* Need to avoid prefetch of NULL on PA7300LC */
+		"	extrw,u,= %0,31,32,%%r0\n"
+#endif
+		"	ldw 0(%0), %%r0" : : "r" (addr));
 }
 
 /* LDD is a PA2.0 addition. */

arch/parisc/kernel/entry.S

@@ -581,7 +581,11 @@
 	 */
 	cmpiclr,=	0x01,\tmp,%r0
 	ldi		(_PAGE_DIRTY|_PAGE_READ|_PAGE_WRITE),\prot
+#ifdef CONFIG_64BIT
 	depd,z		\prot,8,7,\prot
+#else
+	depw,z		\prot,8,7,\prot
+#endif
 	/*
 	 * OK, it is in the temp alias region, check whether "from" or "to".
 	 * Check "subtle" note in pacache.S re: r23/r26.

arch/parisc/kernel/pacache.S

@@ -692,7 +692,7 @@ ENTRY(flush_icache_page_asm)
 
 	/* Purge any old translation */
 
-	pitlb		(%sr0,%r28)
+	pitlb		(%sr4,%r28)
 
 	ldil		L%icache_stride, %r1
 	ldw		R%icache_stride(%r1), %r1
@@ -706,27 +706,29 @@ ENTRY(flush_icache_page_asm)
 	sub		%r25, %r1, %r25
 
 
-1:      fic,m		%r1(%r28)
+	/* fic only has the type 26 form on PA1.1, requiring an
-	fic,m		%r1(%r28)
+	 * explicit space specification, so use %sr4 */
-	fic,m		%r1(%r28)
+1:      fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%r28)
+	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%r28)
+	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%r28)
+	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%r28)
+	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%r28)
+	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%r28)
+	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%r28)
+	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%r28)
+	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%r28)
+	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%r28)
+	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%r28)
+	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
 	cmpb,COND(<<)		%r28, %r25,1b
-	fic,m		%r1(%r28)
+	fic,m		%r1(%sr4,%r28)
 
 	sync
 	bv		%r0(%r2)
-	pitlb		(%sr0,%r25)
+	pitlb		(%sr4,%r25)
 	.exit
 
 	.procend

arch/tile/Kconfig

@@ -11,6 +11,7 @@ config TILE
 	select GENERIC_IRQ_PROBE
 	select GENERIC_PENDING_IRQ if SMP
 	select GENERIC_IRQ_SHOW
+	select HAVE_SYSCALL_WRAPPERS if TILEGX
 	select SYS_HYPERVISOR
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 

arch/x86/Makefile

@@ -134,6 +134,9 @@ KBUILD_CFLAGS += $(call cc-option,-mno-avx,)
 KBUILD_CFLAGS += $(mflags-y)
 KBUILD_AFLAGS += $(mflags-y)
 
+archscripts:
+	$(Q)$(MAKE) $(build)=arch/x86/tools relocs
+
 ###
 # Syscall table generation
 

arch/x86/boot/compressed/Makefile

@@ -40,13 +40,12 @@ OBJCOPYFLAGS_vmlinux.bin :=  -R .comment -S
 $(obj)/vmlinux.bin: vmlinux FORCE
 	$(call if_changed,objcopy)
 
+targets += vmlinux.bin.all vmlinux.relocs
 
-targets += vmlinux.bin.all vmlinux.relocs relocs
+CMD_RELOCS = arch/x86/tools/relocs
-hostprogs-$(CONFIG_X86_NEED_RELOCS) += relocs
-
 quiet_cmd_relocs = RELOCS  $@
-      cmd_relocs = $(obj)/relocs $< > $@;$(obj)/relocs --abs-relocs $<
+      cmd_relocs = $(CMD_RELOCS) $< > $@;$(CMD_RELOCS) --abs-relocs $<
-$(obj)/vmlinux.relocs: vmlinux $(obj)/relocs FORCE
+$(obj)/vmlinux.relocs: vmlinux FORCE
 	$(call if_changed,relocs)
 
 vmlinux.bin.all-y := $(obj)/vmlinux.bin

arch/x86/include/asm/kvm_para.h

@@ -170,6 +170,9 @@ static inline int kvm_para_available(void)
 	unsigned int eax, ebx, ecx, edx;
 	char signature[13];
 
+	if (boot_cpu_data.cpuid_level < 0)
+		return 0;	/* So we don't blow up on old processors */
+
 	cpuid(KVM_CPUID_SIGNATURE, &eax, &ebx, &ecx, &edx);
 	memcpy(signature + 0, &ebx, 4);
 	memcpy(signature + 4, &ecx, 4);

arch/x86/kernel/acpi/boot.c

@@ -593,7 +593,7 @@ void __init acpi_set_irq_model_ioapic(void)
 #ifdef CONFIG_ACPI_HOTPLUG_CPU
 #include <acpi/processor.h>
 
-static void __cpuinitdata acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
+static void __cpuinit acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
 {
 #ifdef CONFIG_ACPI_NUMA
 	int nid;

arch/x86/kernel/cpu/mcheck/mce.c

@@ -945,9 +945,10 @@ struct mce_info {
 	atomic_t		inuse;
 	struct task_struct	*t;
 	__u64			paddr;
+	int			restartable;
 } mce_info[MCE_INFO_MAX];
 
-static void mce_save_info(__u64 addr)
+static void mce_save_info(__u64 addr, int c)
 {
 	struct mce_info *mi;
 
@@ -955,6 +956,7 @@ static void mce_save_info(__u64 addr)
 		if (atomic_cmpxchg(&mi->inuse, 0, 1) == 0) {
 			mi->t = current;
 			mi->paddr = addr;
+			mi->restartable = c;
 			return;
 		}
 	}
@@ -1130,7 +1132,7 @@ void do_machine_check(struct pt_regs *regs, long error_code)
 			mce_panic("Fatal machine check on current CPU", &m, msg);
 		if (worst == MCE_AR_SEVERITY) {
 			/* schedule action before return to userland */
-			mce_save_info(m.addr);
+			mce_save_info(m.addr, m.mcgstatus & MCG_STATUS_RIPV);
 			set_thread_flag(TIF_MCE_NOTIFY);
 		} else if (kill_it) {
 			force_sig(SIGBUS, current);
@@ -1179,7 +1181,13 @@ void mce_notify_process(void)
 
 	pr_err("Uncorrected hardware memory error in user-access at %llx",
 		 mi->paddr);
-	if (memory_failure(pfn, MCE_VECTOR, MF_ACTION_REQUIRED) < 0) {
+	/*
+	 * We must call memory_failure() here even if the current process is
+	 * doomed. We still need to mark the page as poisoned and alert any
+	 * other users of the page.
+	 */
+	if (memory_failure(pfn, MCE_VECTOR, MF_ACTION_REQUIRED) < 0 ||
+			   mi->restartable == 0) {
 		pr_err("Memory error not recovered");
 		force_sig(SIGBUS, current);
 	}

arch/x86/kernel/microcode_intel.c

@@ -147,12 +147,6 @@ static int collect_cpu_info(int cpu_num, struct cpu_signature *csig)
 
 	memset(csig, 0, sizeof(*csig));
 
-	if (c->x86_vendor != X86_VENDOR_INTEL || c->x86 < 6 ||
-	    cpu_has(c, X86_FEATURE_IA64)) {
-		pr_err("CPU%d not a capable Intel processor\n", cpu_num);
-		return -1;
-	}
-
 	csig->sig = cpuid_eax(0x00000001);
 
 	if ((c->x86_model >= 5) || (c->x86 > 6)) {
@@ -463,6 +457,14 @@ static struct microcode_ops microcode_intel_ops = {
 
 struct microcode_ops * __init init_intel_microcode(void)
 {
+	struct cpuinfo_x86 *c = &cpu_data(0);
+
+	if (c->x86_vendor != X86_VENDOR_INTEL || c->x86 < 6 ||
+	    cpu_has(c, X86_FEATURE_IA64)) {
+		pr_err("Intel CPU family 0x%x not supported\n", c->x86);
+		return NULL;
+	}
+
 	return &microcode_intel_ops;
 }
 

arch/x86/tools/.gitignore

@@ -0,0 +1 @@
+relocs

arch/x86/tools/Makefile

@@ -36,3 +36,7 @@ HOSTCFLAGS_insn_sanity.o := -Wall -I$(objtree)/arch/x86/lib/ -I$(srctree)/arch/x
 $(obj)/test_get_len.o: $(srctree)/arch/x86/lib/insn.c $(srctree)/arch/x86/lib/inat.c $(srctree)/arch/x86/include/asm/inat_types.h $(srctree)/arch/x86/include/asm/inat.h $(srctree)/arch/x86/include/asm/insn.h $(objtree)/arch/x86/lib/inat-tables.c
 
 $(obj)/insn_sanity.o: $(srctree)/arch/x86/lib/insn.c $(srctree)/arch/x86/lib/inat.c $(srctree)/arch/x86/include/asm/inat_types.h $(srctree)/arch/x86/include/asm/inat.h $(srctree)/arch/x86/include/asm/insn.h $(objtree)/arch/x86/lib/inat-tables.c
+
+HOST_EXTRACFLAGS += -I$(srctree)/tools/include
+hostprogs-y	+= relocs
+relocs: $(obj)/relocs

arch/x86/tools/relocs.c

@@ -18,6 +18,8 @@ static void die(char *fmt, ...);
 static Elf32_Ehdr ehdr;
 static unsigned long reloc_count, reloc_idx;
 static unsigned long *relocs;
+static unsigned long reloc16_count, reloc16_idx;
+static unsigned long *relocs16;
 
 struct section {
 	Elf32_Shdr     shdr;
@@ -28,52 +30,86 @@ struct section {
 };
 static struct section *secs;
 
+enum symtype {
+	S_ABS,
+	S_REL,
+	S_SEG,
+	S_LIN,
+	S_NSYMTYPES
+};
+
+static const char * const sym_regex_kernel[S_NSYMTYPES] = {
 /*
  * Following symbols have been audited. There values are constant and do
  * not change if bzImage is loaded at a different physical address than
  * the address for which it has been compiled. Don't warn user about
  * absolute relocations present w.r.t these symbols.
  */
-static const char abs_sym_regex[] =
+	[S_ABS] =
 	"^(xen_irq_disable_direct_reloc$|"
 	"xen_save_fl_direct_reloc$|"
 	"VDSO|"
-	"__crc_)";
+	"__crc_)",
-static regex_t abs_sym_regex_c;
-static int is_abs_reloc(const char *sym_name)
-{
-	return !regexec(&abs_sym_regex_c, sym_name, 0, NULL, 0);
-}
 
 /*
  * These symbols are known to be relative, even if the linker marks them
  * as absolute (typically defined outside any section in the linker script.)
  */
-static const char rel_sym_regex[] =
+	[S_REL] =
-	"^_end$";
+	"^(__init_(begin|end)|"
-static regex_t rel_sym_regex_c;
+	"__x86_cpu_dev_(start|end)|"
-static int is_rel_reloc(const char *sym_name)
+	"(__parainstructions|__alt_instructions)(|_end)|"
+	"(__iommu_table|__apicdrivers|__smp_locks)(|_end)|"
+	"_end)$"
+};
+
+
+static const char * const sym_regex_realmode[S_NSYMTYPES] = {
+/*
+ * These are 16-bit segment symbols when compiling 16-bit code.
+ */
+	[S_SEG] =
+	"^real_mode_seg$",
+
+/*
+ * These are offsets belonging to segments, as opposed to linear addresses,
+ * when compiling 16-bit code.
+ */
+	[S_LIN] =
+	"^pa_",
+};
+
+static const char * const *sym_regex;
+
+static regex_t sym_regex_c[S_NSYMTYPES];
+static int is_reloc(enum symtype type, const char *sym_name)
 {
-	return !regexec(&rel_sym_regex_c, sym_name, 0, NULL, 0);
+	return sym_regex[type] &&
+		!regexec(&sym_regex_c[type], sym_name, 0, NULL, 0);
 }
 
-static void regex_init(void)
+static void regex_init(int use_real_mode)
 {
         char errbuf[128];
         int err;
+	int i;
 
-        err = regcomp(&abs_sym_regex_c, abs_sym_regex,
+	if (use_real_mode)
+		sym_regex = sym_regex_realmode;
+	else
+		sym_regex = sym_regex_kernel;
+
+	for (i = 0; i < S_NSYMTYPES; i++) {
+		if (!sym_regex[i])
+			continue;
+
+		err = regcomp(&sym_regex_c[i], sym_regex[i],
 			      REG_EXTENDED|REG_NOSUB);
+
 		if (err) {
-                regerror(err, &abs_sym_regex_c, errbuf, sizeof errbuf);
+			regerror(err, &sym_regex_c[i], errbuf, sizeof errbuf);
 			die("%s", errbuf);
 		}
-
-        err = regcomp(&rel_sym_regex_c, rel_sym_regex,
-                      REG_EXTENDED|REG_NOSUB);
-        if (err) {
-                regerror(err, &rel_sym_regex_c, errbuf, sizeof errbuf);
-                die("%s", errbuf);
         }
 }
 
@@ -154,6 +190,10 @@ static const char *rel_type(unsigned type)
 		REL_TYPE(R_386_RELATIVE),
 		REL_TYPE(R_386_GOTOFF),
 		REL_TYPE(R_386_GOTPC),
+		REL_TYPE(R_386_8),
+		REL_TYPE(R_386_PC8),
+		REL_TYPE(R_386_16),
+		REL_TYPE(R_386_PC16),
 #undef REL_TYPE
 	};
 	const char *name = "unknown type rel type name";
@@ -189,7 +229,7 @@ static const char *sym_name(const char *sym_strtab, Elf32_Sym *sym)
 		name = sym_strtab + sym->st_name;
 	}
 	else {
-		name = sec_name(secs[sym->st_shndx].shdr.sh_name);
+		name = sec_name(sym->st_shndx);
 	}
 	return name;
 }
@@ -472,7 +512,7 @@ static void print_absolute_relocs(void)
 			 * Before warning check if this absolute symbol
 			 * relocation is harmless.
 			 */
-			if (is_abs_reloc(name) || is_rel_reloc(name))
+			if (is_reloc(S_ABS, name) || is_reloc(S_REL, name))
 				continue;
 
 			if (!printed) {
@@ -496,7 +536,8 @@ static void print_absolute_relocs(void)
 		printf("\n");
 }
 
-static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym))
+static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym),
+			int use_real_mode)
 {
 	int i;
 	/* Walk through the relocations */
@@ -521,30 +562,67 @@ static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym))
 			Elf32_Rel *rel;
 			Elf32_Sym *sym;
 			unsigned r_type;
+			const char *symname;
+			int shn_abs;
+
 			rel = &sec->reltab[j];
 			sym = &sh_symtab[ELF32_R_SYM(rel->r_info)];
 			r_type = ELF32_R_TYPE(rel->r_info);
-			/* Don't visit relocations to absolute symbols */
+
-			if (sym->st_shndx == SHN_ABS &&
+			shn_abs = sym->st_shndx == SHN_ABS;
-			    !is_rel_reloc(sym_name(sym_strtab, sym))) {
+
-				continue;
-			}
 			switch (r_type) {
 			case R_386_NONE:
 			case R_386_PC32:
+			case R_386_PC16:
+			case R_386_PC8:
 				/*
 				 * NONE can be ignored and and PC relative
 				 * relocations don't need to be adjusted.
 				 */
 				break;
+
+			case R_386_16:
+				symname = sym_name(sym_strtab, sym);
+				if (!use_real_mode)
+					goto bad;
+				if (shn_abs) {
+					if (is_reloc(S_ABS, symname))
+						break;
+					else if (!is_reloc(S_SEG, symname))
+						goto bad;
+				} else {
+					if (is_reloc(S_LIN, symname))
+						goto bad;
+					else
+						break;
+				}
+				visit(rel, sym);
+				break;
+
 			case R_386_32:
-				/* Visit relocations that need to be adjusted */
+				symname = sym_name(sym_strtab, sym);
+				if (shn_abs) {
+					if (is_reloc(S_ABS, symname))
+						break;
+					else if (!is_reloc(S_REL, symname))
+						goto bad;
+				} else {
+					if (use_real_mode &&
+					    !is_reloc(S_LIN, symname))
+						break;
+				}
 				visit(rel, sym);
 				break;
 			default:
 				die("Unsupported relocation type: %s (%d)\n",
 				    rel_type(r_type), r_type);
 				break;
+			bad:
+				symname = sym_name(sym_strtab, sym);
+				die("Invalid %s %s relocation: %s\n",
+				    shn_abs ? "absolute" : "relative",
+				    rel_type(r_type), symname);
 			}
 		}
 	}
@@ -552,12 +630,18 @@ static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym))
 
 static void count_reloc(Elf32_Rel *rel, Elf32_Sym *sym)
 {
-	reloc_count += 1;
+	if (ELF32_R_TYPE(rel->r_info) == R_386_16)
+		reloc16_count++;
+	else
+		reloc_count++;
 }
 
 static void collect_reloc(Elf32_Rel *rel, Elf32_Sym *sym)
 {
 	/* Remember the address that needs to be adjusted. */
+	if (ELF32_R_TYPE(rel->r_info) == R_386_16)
+		relocs16[reloc16_idx++] = rel->r_offset;
+	else
 		relocs[reloc_idx++] = rel->r_offset;
 }
 
@@ -568,23 +652,41 @@ static int cmp_relocs(const void *va, const void *vb)
 	return (*a == *b)? 0 : (*a > *b)? 1 : -1;
 }
 
-static void emit_relocs(int as_text)
+static int write32(unsigned int v, FILE *f)
+{
+	unsigned char buf[4];
+
+	put_unaligned_le32(v, buf);
+	return fwrite(buf, 1, 4, f) == 4 ? 0 : -1;
+}
+
+static void emit_relocs(int as_text, int use_real_mode)
 {
 	int i;
 	/* Count how many relocations I have and allocate space for them. */
 	reloc_count = 0;
-	walk_relocs(count_reloc);
+	walk_relocs(count_reloc, use_real_mode);
 	relocs = malloc(reloc_count * sizeof(relocs[0]));
 	if (!relocs) {
 		die("malloc of %d entries for relocs failed\n",
 			reloc_count);
 	}
+
+	relocs16 = malloc(reloc16_count * sizeof(relocs[0]));
+	if (!relocs16) {
+		die("malloc of %d entries for relocs16 failed\n",
+			reloc16_count);
+	}
 	/* Collect up the relocations */
 	reloc_idx = 0;
-	walk_relocs(collect_reloc);
+	walk_relocs(collect_reloc, use_real_mode);
+
+	if (reloc16_count && !use_real_mode)
+		die("Segment relocations found but --realmode not specified\n");
 
 	/* Order the relocations for more efficient processing */
 	qsort(relocs, reloc_count, sizeof(relocs[0]), cmp_relocs);
+	qsort(relocs16, reloc16_count, sizeof(relocs16[0]), cmp_relocs);
 
 	/* Print the relocations */
 	if (as_text) {
@@ -593,58 +695,83 @@ static void emit_relocs(int as_text)
 		 */
 		printf(".section \".data.reloc\",\"a\"\n");
 		printf(".balign 4\n");
+		if (use_real_mode) {
+			printf("\t.long %lu\n", reloc16_count);
+			for (i = 0; i < reloc16_count; i++)
+				printf("\t.long 0x%08lx\n", relocs16[i]);
+			printf("\t.long %lu\n", reloc_count);
 			for (i = 0; i < reloc_count; i++) {
 				printf("\t.long 0x%08lx\n", relocs[i]);
 			}
+		} else {
+			/* Print a stop */
+			printf("\t.long 0x%08lx\n", (unsigned long)0);
+			for (i = 0; i < reloc_count; i++) {
+				printf("\t.long 0x%08lx\n", relocs[i]);
+			}
+		}
+
 		printf("\n");
 	}
 	else {
-		unsigned char buf[4];
+		if (use_real_mode) {
+			write32(reloc16_count, stdout);
+			for (i = 0; i < reloc16_count; i++)
+				write32(relocs16[i], stdout);
+			write32(reloc_count, stdout);
+
+			/* Now print each relocation */
+			for (i = 0; i < reloc_count; i++)
+				write32(relocs[i], stdout);
+		} else {
 			/* Print a stop */
-		fwrite("\0\0\0\0", 4, 1, stdout);
+			write32(0, stdout);
+
 			/* Now print each relocation */
 			for (i = 0; i < reloc_count; i++) {
-			put_unaligned_le32(relocs[i], buf);
+				write32(relocs[i], stdout);
-			fwrite(buf, 4, 1, stdout);
+			}
 		}
 	}
 }
 
 static void usage(void)
 {
-	die("relocs [--abs-syms |--abs-relocs | --text] vmlinux\n");
+	die("relocs [--abs-syms|--abs-relocs|--text|--realmode] vmlinux\n");
 }
 
 int main(int argc, char **argv)
 {
 	int show_absolute_syms, show_absolute_relocs;
-	int as_text;
+	int as_text, use_real_mode;
 	const char *fname;
 	FILE *fp;
 	int i;
 
-	regex_init();
-
 	show_absolute_syms = 0;
 	show_absolute_relocs = 0;
 	as_text = 0;
+	use_real_mode = 0;
 	fname = NULL;
 	for (i = 1; i < argc; i++) {
 		char *arg = argv[i];
 		if (*arg == '-') {
-			if (strcmp(argv[1], "--abs-syms") == 0) {
+			if (strcmp(arg, "--abs-syms") == 0) {
 				show_absolute_syms = 1;
 				continue;
 			}
-
+			if (strcmp(arg, "--abs-relocs") == 0) {
-			if (strcmp(argv[1], "--abs-relocs") == 0) {
 				show_absolute_relocs = 1;
 				continue;
 			}
-			else if (strcmp(argv[1], "--text") == 0) {
+			if (strcmp(arg, "--text") == 0) {
 				as_text = 1;
 				continue;
 			}
+			if (strcmp(arg, "--realmode") == 0) {
+				use_real_mode = 1;
+				continue;
+			}
 		}
 		else if (!fname) {
 			fname = arg;
@@ -655,6 +782,7 @@ int main(int argc, char **argv)
 	if (!fname) {
 		usage();
 	}
+	regex_init(use_real_mode);
 	fp = fopen(fname, "r");
 	if (!fp) {
 		die("Cannot open %s: %s\n",
@@ -673,6 +801,6 @@ int main(int argc, char **argv)
 		print_absolute_relocs();
 		return 0;
 	}
-	emit_relocs(as_text);
+	emit_relocs(as_text, use_real_mode);
 	return 0;
 }

block/genhd.c

@@ -743,7 +743,7 @@ void __init printk_all_partitions(void)
 		struct hd_struct *part;
 		char name_buf[BDEVNAME_SIZE];
 		char devt_buf[BDEVT_SIZE];
-		u8 uuid[PARTITION_META_INFO_UUIDLTH * 2 + 1];
+		char uuid_buf[PARTITION_META_INFO_UUIDLTH * 2 + 5];
 
 		/*
 		 * Don't show empty devices or things that have been
@@ -762,14 +762,16 @@ void __init printk_all_partitions(void)
 		while ((part = disk_part_iter_next(&piter))) {
 			bool is_part0 = part == &disk->part0;
 
-			uuid[0] = 0;
+			uuid_buf[0] = '\0';
 			if (part->info)
-				part_unpack_uuid(part->info->uuid, uuid);
+				snprintf(uuid_buf, sizeof(uuid_buf), "%pU",
+					 part->info->uuid);
 
 			printk("%s%s %10llu %s %s", is_part0 ? "" : "  ",
 			       bdevt_str(part_devt(part), devt_buf),
 			       (unsigned long long)part->nr_sects >> 1,
-			       disk_name(disk, part->partno, name_buf), uuid);
+			       disk_name(disk, part->partno, name_buf),
+			       uuid_buf);
 			if (is_part0) {
 				if (disk->driverfs_dev != NULL &&
 				    disk->driverfs_dev->driver != NULL)

drivers/acpi/bus.c

@@ -250,6 +250,10 @@ static int __acpi_bus_set_power(struct acpi_device *device, int state)
 		return -ENODEV;
 	}
 
+	/* For D3cold we should execute _PS3, not _PS4. */
+	if (state == ACPI_STATE_D3_COLD)
+		object_name[3] = '3';
+
 	/*
 	 * Transition Power
 	 * ----------------

drivers/acpi/power.c

@@ -660,7 +660,7 @@ int acpi_power_on_resources(struct acpi_device *device, int state)
 
 int acpi_power_transition(struct acpi_device *device, int state)
 {
-	int result;
+	int result = 0;
 
 	if (!device || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3_COLD))
 		return -EINVAL;
@@ -679,8 +679,11 @@ int acpi_power_transition(struct acpi_device *device, int state)
 	 * (e.g. so the device doesn't lose power while transitioning).  Then,
 	 * we dereference all power resources used in the current list.
 	 */
-	result = acpi_power_on_list(&device->power.states[state].resources);
+	if (state < ACPI_STATE_D3_COLD)
-	if (!result)
+		result = acpi_power_on_list(
+			&device->power.states[state].resources);
+
+	if (!result && device->power.state < ACPI_STATE_D3_COLD)
 		acpi_power_off_list(
 			&device->power.states[device->power.state].resources);
 

drivers/acpi/scan.c

@@ -908,6 +908,10 @@ static int acpi_bus_get_power_flags(struct acpi_device *device)
 	device->power.states[ACPI_STATE_D3].flags.valid = 1;
 	device->power.states[ACPI_STATE_D3].power = 0;
 
+	/* Set D3cold's explicit_set flag if _PS3 exists. */
+	if (device->power.states[ACPI_STATE_D3_HOT].flags.explicit_set)
+		device->power.states[ACPI_STATE_D3_COLD].flags.explicit_set = 1;
+
 	acpi_bus_init_power(device);
 
 	return 0;

drivers/block/DAC960.c

@@ -6580,14 +6580,11 @@ static const struct file_operations dac960_user_command_proc_fops = {
 
 static void DAC960_CreateProcEntries(DAC960_Controller_T *Controller)
 {
-	struct proc_dir_entry *StatusProcEntry;
 	struct proc_dir_entry *ControllerProcEntry;
-	struct proc_dir_entry *UserCommandProcEntry;
 
 	if (DAC960_ProcDirectoryEntry == NULL) {
 		DAC960_ProcDirectoryEntry = proc_mkdir("rd", NULL);
-  		StatusProcEntry = proc_create("status", 0,
+		proc_create("status", 0, DAC960_ProcDirectoryEntry,
-					   DAC960_ProcDirectoryEntry,
 			    &dac960_proc_fops);
 	}
 
@@ -6596,7 +6593,7 @@ static void DAC960_CreateProcEntries(DAC960_Controller_T *Controller)
 					 DAC960_ProcDirectoryEntry);
 	proc_create_data("initial_status", 0, ControllerProcEntry, &dac960_initial_status_proc_fops, Controller);
 	proc_create_data("current_status", 0, ControllerProcEntry, &dac960_current_status_proc_fops, Controller);
-      UserCommandProcEntry = proc_create_data("user_command", S_IWUSR | S_IRUSR, ControllerProcEntry, &dac960_user_command_proc_fops, Controller);
+	proc_create_data("user_command", S_IWUSR | S_IRUSR, ControllerProcEntry, &dac960_user_command_proc_fops, Controller);
 	Controller->ControllerProcEntry = ControllerProcEntry;
 }
 

drivers/block/mtip32xx/mtip32xx.c

@@ -2510,8 +2510,10 @@ static struct scatterlist *mtip_hw_get_scatterlist(struct driver_data *dd,
 		up(&dd->port->cmd_slot);
 		return NULL;
 	}
-	if (unlikely(*tag < 0))
+	if (unlikely(*tag < 0)) {
+		up(&dd->port->cmd_slot);
 		return NULL;
+	}
 
 	return dd->port->commands[*tag].sg;
 }

drivers/char/virtio_console.c

@@ -1895,6 +1895,13 @@ static int virtcons_restore(struct virtio_device *vdev)
 
 		/* Get port open/close status on the host */
 		send_control_msg(port, VIRTIO_CONSOLE_PORT_READY, 1);
+
+		/*
+		 * If a port was open at the time of suspending, we
+		 * have to let the host know that it's still open.
+		 */
+		if (port->guest_connected)
+			send_control_msg(port, VIRTIO_CONSOLE_PORT_OPEN, 1);
 	}
 	return 0;
 }

drivers/crypto/Kconfig

@@ -164,6 +164,7 @@ config CRYPTO_DEV_MV_CESA
 	select CRYPTO_ALGAPI
 	select CRYPTO_AES
 	select CRYPTO_BLKCIPHER2
+	select CRYPTO_HASH
 	help
 	  This driver allows you to utilize the Cryptographic Engines and
 	  Security Accelerator (CESA) which can be found on the Marvell Orion

drivers/dma/at_hdmac.c

@@ -245,6 +245,8 @@ atc_chain_complete(struct at_dma_chan *atchan, struct at_desc *desc)
 	dev_vdbg(chan2dev(&atchan->chan_common),
 		"descriptor %u complete\n", txd->cookie);
 
+	/* mark the descriptor as complete for non cyclic cases only */
+	if (!atc_chan_is_cyclic(atchan))
 		dma_cookie_complete(txd);
 
 	/* move children to free_list */

drivers/dma/ep93xx_dma.c

@@ -703,6 +703,8 @@ static void ep93xx_dma_tasklet(unsigned long data)
 	desc = ep93xx_dma_get_active(edmac);
 	if (desc) {
 		if (desc->complete) {
+			/* mark descriptor complete for non cyclic case only */
+			if (!test_bit(EP93XX_DMA_IS_CYCLIC, &edmac->flags))
 				dma_cookie_complete(&desc->txd);
 			list_splice_init(&edmac->active, &list);
 		}

drivers/dma/pl330.c

@@ -2322,6 +2322,7 @@ static void pl330_tasklet(unsigned long data)
 	/* Pick up ripe tomatoes */
 	list_for_each_entry_safe(desc, _dt, &pch->work_list, node)
 		if (desc->status == DONE) {
+			if (pch->cyclic)
 				dma_cookie_complete(&desc->txd);
 			list_move_tail(&desc->node, &list);
 		}

drivers/md/dm-thin.c

@@ -1632,6 +1632,21 @@ static int bind_control_target(struct pool *pool, struct dm_target *ti)
 	pool->low_water_blocks = pt->low_water_blocks;
 	pool->pf = pt->pf;
 
+	/*
+	 * If discard_passdown was enabled verify that the data device
+	 * supports discards.  Disable discard_passdown if not; otherwise
+	 * -EOPNOTSUPP will be returned.
+	 */
+	if (pt->pf.discard_passdown) {
+		struct request_queue *q = bdev_get_queue(pt->data_dev->bdev);
+		if (!q || !blk_queue_discard(q)) {
+			char buf[BDEVNAME_SIZE];
+			DMWARN("Discard unsupported by data device (%s): Disabling discard passdown.",
+			       bdevname(pt->data_dev->bdev, buf));
+			pool->pf.discard_passdown = 0;
+		}
+	}
+
 	return 0;
 }
 
@@ -1988,19 +2003,6 @@ static int pool_ctr(struct dm_target *ti, unsigned argc, char **argv)
 		goto out_flags_changed;
 	}
 
-	/*
-	 * If discard_passdown was enabled verify that the data device
-	 * supports discards.  Disable discard_passdown if not; otherwise
-	 * -EOPNOTSUPP will be returned.
-	 */
-	if (pf.discard_passdown) {
-		struct request_queue *q = bdev_get_queue(data_dev->bdev);
-		if (!q || !blk_queue_discard(q)) {
-			DMWARN("Discard unsupported by data device: Disabling discard passdown.");
-			pf.discard_passdown = 0;
-		}
-	}
-
 	pt->pool = pool;
 	pt->ti = ti;
 	pt->metadata_dev = metadata_dev;
@@ -2385,7 +2387,7 @@ static int pool_status(struct dm_target *ti, status_type_t type,
 		       (unsigned long long)pt->low_water_blocks);
 
 		count = !pool->pf.zero_new_blocks + !pool->pf.discard_enabled +
-			!pool->pf.discard_passdown;
+			!pt->pf.discard_passdown;
 		DMEMIT("%u ", count);
 
 		if (!pool->pf.zero_new_blocks)
@@ -2394,7 +2396,7 @@ static int pool_status(struct dm_target *ti, status_type_t type,
 		if (!pool->pf.discard_enabled)
 			DMEMIT("ignore_discard ");
 
-		if (!pool->pf.discard_passdown)
+		if (!pt->pf.discard_passdown)
 			DMEMIT("no_discard_passdown ");
 
 		break;

drivers/md/md.c

@@ -391,6 +391,8 @@ void mddev_suspend(struct mddev *mddev)
 	synchronize_rcu();
 	wait_event(mddev->sb_wait, atomic_read(&mddev->active_io) == 0);
 	mddev->pers->quiesce(mddev, 1);
+
+	del_timer_sync(&mddev->safemode_timer);
 }
 EXPORT_SYMBOL_GPL(mddev_suspend);
 

drivers/md/raid10.c

@@ -3164,12 +3164,40 @@ raid10_size(struct mddev *mddev, sector_t sectors, int raid_disks)
 	return size << conf->chunk_shift;
 }
 
+static void calc_sectors(struct r10conf *conf, sector_t size)
+{
+	/* Calculate the number of sectors-per-device that will
+	 * actually be used, and set conf->dev_sectors and
+	 * conf->stride
+	 */
+
+	size = size >> conf->chunk_shift;
+	sector_div(size, conf->far_copies);
+	size = size * conf->raid_disks;
+	sector_div(size, conf->near_copies);
+	/* 'size' is now the number of chunks in the array */
+	/* calculate "used chunks per device" */
+	size = size * conf->copies;
+
+	/* We need to round up when dividing by raid_disks to
+	 * get the stride size.
+	 */
+	size = DIV_ROUND_UP_SECTOR_T(size, conf->raid_disks);
+
+	conf->dev_sectors = size << conf->chunk_shift;
+
+	if (conf->far_offset)
+		conf->stride = 1 << conf->chunk_shift;
+	else {
+		sector_div(size, conf->far_copies);
+		conf->stride = size << conf->chunk_shift;
+	}
+}
 
 static struct r10conf *setup_conf(struct mddev *mddev)
 {
 	struct r10conf *conf = NULL;
 	int nc, fc, fo;
-	sector_t stride, size;
 	int err = -EINVAL;
 
 	if (mddev->new_chunk_sectors < (PAGE_SIZE >> 9) ||
@@ -3219,28 +3247,7 @@ static struct r10conf *setup_conf(struct mddev *mddev)
 	if (!conf->r10bio_pool)
 		goto out;
 
-	size = mddev->dev_sectors >> conf->chunk_shift;
+	calc_sectors(conf, mddev->dev_sectors);
-	sector_div(size, fc);
-	size = size * conf->raid_disks;
-	sector_div(size, nc);
-	/* 'size' is now the number of chunks in the array */
-	/* calculate "used chunks per device" in 'stride' */
-	stride = size * conf->copies;
-
-	/* We need to round up when dividing by raid_disks to
-	 * get the stride size.
-	 */
-	stride += conf->raid_disks - 1;
-	sector_div(stride, conf->raid_disks);
-
-	conf->dev_sectors = stride << conf->chunk_shift;
-
-	if (fo)
-		stride = 1;
-	else
-		sector_div(stride, fc);
-	conf->stride = stride << conf->chunk_shift;
-
 
 	spin_lock_init(&conf->device_lock);
 	INIT_LIST_HEAD(&conf->retry_list);
@@ -3468,7 +3475,8 @@ static int raid10_resize(struct mddev *mddev, sector_t sectors)
 		mddev->recovery_cp = oldsize;
 		set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
 	}
-	mddev->dev_sectors = sectors;
+	calc_sectors(conf, sectors);
+	mddev->dev_sectors = conf->dev_sectors;
 	mddev->resync_max_sectors = size;
 	return 0;
 }

drivers/net/ethernet/intel/e1000/e1000_main.c

@@ -493,7 +493,11 @@ out:
 static void e1000_down_and_stop(struct e1000_adapter *adapter)
 {
 	set_bit(__E1000_DOWN, &adapter->flags);
+
+	/* Only kill reset task if adapter is not resetting */
+	if (!test_bit(__E1000_RESETTING, &adapter->flags))
 		cancel_work_sync(&adapter->reset_task);
+
 	cancel_delayed_work_sync(&adapter->watchdog_task);
 	cancel_delayed_work_sync(&adapter->phy_info_task);
 	cancel_delayed_work_sync(&adapter->fifo_stall_task);

drivers/net/virtio_net.c

@@ -501,7 +501,9 @@ static void virtnet_napi_enable(struct virtnet_info *vi)
 	 * We synchronize against interrupts via NAPI_STATE_SCHED */
 	if (napi_schedule_prep(&vi->napi)) {
 		virtqueue_disable_cb(vi->rvq);
+		local_bh_disable();
 		__napi_schedule(&vi->napi);
+		local_bh_enable();
 	}
 }
 

drivers/pci/pci-acpi.c

@@ -223,7 +223,7 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
 		[PCI_D0] = ACPI_STATE_D0,
 		[PCI_D1] = ACPI_STATE_D1,
 		[PCI_D2] = ACPI_STATE_D2,
-		[PCI_D3hot] = ACPI_STATE_D3_HOT,
+		[PCI_D3hot] = ACPI_STATE_D3,
 		[PCI_D3cold] = ACPI_STATE_D3
 	};
 	int error = -EINVAL;

drivers/rtc/rtc-pl031.c

@@ -312,6 +312,7 @@ static int pl031_probe(struct amba_device *adev, const struct amba_id *id)
 	int ret;
 	struct pl031_local *ldata;
 	struct rtc_class_ops *ops = id->data;
+	unsigned long time;
 
 	ret = amba_request_regions(adev, NULL);
 	if (ret)
@@ -343,6 +344,23 @@ static int pl031_probe(struct amba_device *adev, const struct amba_id *id)
 		writel(readl(ldata->base + RTC_CR) | RTC_CR_CWEN,
 		       ldata->base + RTC_CR);
 
+	/*
+	 * On ST PL031 variants, the RTC reset value does not provide correct
+	 * weekday for 2000-01-01. Correct the erroneous sunday to saturday.
+	 */
+	if (ldata->hw_designer == AMBA_VENDOR_ST) {
+		if (readl(ldata->base + RTC_YDR) == 0x2000) {
+			time = readl(ldata->base + RTC_DR);
+			if ((time &
+			     (RTC_MON_MASK | RTC_MDAY_MASK | RTC_WDAY_MASK))
+			    == 0x02120000) {
+				time = time | (0x7 << RTC_WDAY_SHIFT);
+				writel(0x2000, ldata->base + RTC_YLR);
+				writel(time, ldata->base + RTC_LR);
+			}
+		}
+	}
+
 	ldata->rtc = rtc_device_register("pl031", &adev->dev, ops,
 					THIS_MODULE);
 	if (IS_ERR(ldata->rtc)) {

drivers/target/target_core_file.c

@@ -169,6 +169,7 @@ static struct se_device *fd_create_virtdevice(
 	inode = file->f_mapping->host;
 	if (S_ISBLK(inode->i_mode)) {
 		struct request_queue *q;
+		unsigned long long dev_size;
 		/*
 		 * Setup the local scope queue_limits from struct request_queue->limits
 		 * to pass into transport_add_device_to_core_hba() as struct se_dev_limits.
@@ -183,13 +184,12 @@ static struct se_device *fd_create_virtdevice(
 		 * one (1) logical sector from underlying struct block_device
 		 */
 		fd_dev->fd_block_size = bdev_logical_block_size(inode->i_bdev);
-		fd_dev->fd_dev_size = (i_size_read(file->f_mapping->host) -
+		dev_size = (i_size_read(file->f_mapping->host) -
 				       fd_dev->fd_block_size);
 
 		pr_debug("FILEIO: Using size: %llu bytes from struct"
 			" block_device blocks: %llu logical_block_size: %d\n",
-			fd_dev->fd_dev_size,
+			dev_size, div_u64(dev_size, fd_dev->fd_block_size),
-			div_u64(fd_dev->fd_dev_size, fd_dev->fd_block_size),
 			fd_dev->fd_block_size);
 	} else {
 		if (!(fd_dev->fbd_flags & FBDF_HAS_SIZE)) {
@@ -605,10 +605,20 @@ static u32 fd_get_device_type(struct se_device *dev)
 static sector_t fd_get_blocks(struct se_device *dev)
 {
 	struct fd_dev *fd_dev = dev->dev_ptr;
-	unsigned long long blocks_long = div_u64(fd_dev->fd_dev_size,
+	struct file *f = fd_dev->fd_file;
-			dev->se_sub_dev->se_dev_attrib.block_size);
+	struct inode *i = f->f_mapping->host;
+	unsigned long long dev_size;
+	/*
+	 * When using a file that references an underlying struct block_device,
+	 * ensure dev_size is always based on the current inode size in order
+	 * to handle underlying block_device resize operations.
+	 */
+	if (S_ISBLK(i->i_mode))
+		dev_size = (i_size_read(i) - fd_dev->fd_block_size);
+	else
+		dev_size = fd_dev->fd_dev_size;
 
-	return blocks_long;
+	return div_u64(dev_size, dev->se_sub_dev->se_dev_attrib.block_size);
 }
 
 static struct se_subsystem_api fileio_template = {

drivers/target/target_core_pr.c

@@ -220,6 +220,9 @@ int target_scsi2_reservation_release(struct se_task *task)
 	if (dev->dev_reserved_node_acl != sess->se_node_acl)
 		goto out_unlock;
 
+	if (dev->dev_res_bin_isid != sess->sess_bin_isid)
+		goto out_unlock;
+
 	dev->dev_reserved_node_acl = NULL;
 	dev->dev_flags &= ~DF_SPC2_RESERVATIONS;
 	if (dev->dev_flags & DF_SPC2_RESERVATIONS_WITH_ISID) {

drivers/virtio/virtio_balloon.c

@@ -390,6 +390,7 @@ static void __devexit virtballoon_remove(struct virtio_device *vdev)
 	/* There might be pages left in the balloon: free them. */
 	while (vb->num_pages)
 		leak_balloon(vb, vb->num_pages);
+	update_balloon_size(vb);
 
 	/* Now we reset the device so we can clean up the queues. */
 	vdev->config->reset(vdev);

fs/bio.c

@@ -505,9 +505,14 @@ EXPORT_SYMBOL(bio_clone);
 int bio_get_nr_vecs(struct block_device *bdev)
 {
 	struct request_queue *q = bdev_get_queue(bdev);
-	return min_t(unsigned,
+	int nr_pages;
+
+	nr_pages = min_t(unsigned,
 		     queue_max_segments(q),
 		     queue_max_sectors(q) / (PAGE_SIZE >> 9) + 1);
+
+	return min_t(unsigned, nr_pages, BIO_MAX_PAGES);
+
 }
 EXPORT_SYMBOL(bio_get_nr_vecs);
 

fs/block_dev.c

@@ -70,7 +70,7 @@ static void bdev_inode_switch_bdi(struct inode *inode,
 	spin_unlock(&dst->wb.list_lock);
 }
 
-static sector_t max_block(struct block_device *bdev)
+sector_t blkdev_max_block(struct block_device *bdev)
 {
 	sector_t retval = ~((sector_t)0);
 	loff_t sz = i_size_read(bdev->bd_inode);
@@ -163,7 +163,7 @@ static int
 blkdev_get_block(struct inode *inode, sector_t iblock,
 		struct buffer_head *bh, int create)
 {
-	if (iblock >= max_block(I_BDEV(inode))) {
+	if (iblock >= blkdev_max_block(I_BDEV(inode))) {
 		if (create)
 			return -EIO;
 
@@ -185,7 +185,7 @@ static int
 blkdev_get_blocks(struct inode *inode, sector_t iblock,
 		struct buffer_head *bh, int create)
 {
-	sector_t end_block = max_block(I_BDEV(inode));
+	sector_t end_block = blkdev_max_block(I_BDEV(inode));
 	unsigned long max_blocks = bh->b_size >> inode->i_blkbits;
 
 	if ((iblock + max_blocks) > end_block) {

fs/buffer.c

@@ -921,6 +921,7 @@ init_page_buffers(struct page *page, struct block_device *bdev,
 	struct buffer_head *head = page_buffers(page);
 	struct buffer_head *bh = head;
 	int uptodate = PageUptodate(page);
+	sector_t end_block = blkdev_max_block(I_BDEV(bdev->bd_inode));
 
 	do {
 		if (!buffer_mapped(bh)) {
@@ -929,6 +930,7 @@ init_page_buffers(struct page *page, struct block_device *bdev,
 			bh->b_blocknr = block;
 			if (uptodate)
 				set_buffer_uptodate(bh);
+			if (block < end_block)
 				set_buffer_mapped(bh);
 		}
 		block++;

fs/proc/base.c

@@ -1799,10 +1799,15 @@ static int tid_fd_revalidate(struct dentry *dentry, struct nameidata *nd)
 	if (task) {
 		files = get_files_struct(task);
 		if (files) {
+			struct file *file;
 			rcu_read_lock();
-			if (fcheck_files(files, fd)) {
+			file = fcheck_files(files, fd);
+			if (file) {
+				unsigned i_mode, f_mode = file->f_mode;
+
 				rcu_read_unlock();
 				put_files_struct(files);
+
 				if (task_dumpable(task)) {
 					rcu_read_lock();
 					cred = __task_cred(task);
@@ -1813,7 +1818,14 @@ static int tid_fd_revalidate(struct dentry *dentry, struct nameidata *nd)
 					inode->i_uid = 0;
 					inode->i_gid = 0;
 				}
-				inode->i_mode &= ~(S_ISUID | S_ISGID);
+
+				i_mode = S_IFLNK;
+				if (f_mode & FMODE_READ)
+					i_mode |= S_IRUSR | S_IXUSR;
+				if (f_mode & FMODE_WRITE)
+					i_mode |= S_IWUSR | S_IXUSR;
+				inode->i_mode = i_mode;
+
 				security_task_to_inode(task, inode);
 				put_task_struct(task);
 				return 1;
@@ -1837,8 +1849,6 @@ static struct dentry *proc_fd_instantiate(struct inode *dir,
 	struct dentry *dentry, struct task_struct *task, const void *ptr)
 {
 	unsigned fd = *(const unsigned *)ptr;
-	struct file *file;
-	struct files_struct *files;
  	struct inode *inode;
  	struct proc_inode *ei;
 	struct dentry *error = ERR_PTR(-ENOENT);
@@ -1848,25 +1858,6 @@ static struct dentry *proc_fd_instantiate(struct inode *dir,
 		goto out;
 	ei = PROC_I(inode);
 	ei->fd = fd;
-	files = get_files_struct(task);
-	if (!files)
-		goto out_iput;
-	inode->i_mode = S_IFLNK;
-
-	/*
-	 * We are not taking a ref to the file structure, so we must
-	 * hold ->file_lock.
-	 */
-	spin_lock(&files->file_lock);
-	file = fcheck_files(files, fd);
-	if (!file)
-		goto out_unlock;
-	if (file->f_mode & FMODE_READ)
-		inode->i_mode |= S_IRUSR | S_IXUSR;
-	if (file->f_mode & FMODE_WRITE)
-		inode->i_mode |= S_IWUSR | S_IXUSR;
-	spin_unlock(&files->file_lock);
-	put_files_struct(files);
 
 	inode->i_op = &proc_pid_link_inode_operations;
 	inode->i_size = 64;
@@ -1879,12 +1870,6 @@ static struct dentry *proc_fd_instantiate(struct inode *dir,
 
  out:
 	return error;
-out_unlock:
-	spin_unlock(&files->file_lock);
-	put_files_struct(files);
-out_iput:
-	iput(inode);
-	goto out;
 }
 
 static struct dentry *proc_lookupfd_common(struct inode *dir,
@@ -2177,16 +2162,16 @@ static struct dentry *proc_map_files_lookup(struct inode *dir,
 		goto out;
 
 	result = ERR_PTR(-EACCES);
-	if (lock_trace(task))
+	if (!ptrace_may_access(task, PTRACE_MODE_READ))
 		goto out_put_task;
 
 	result = ERR_PTR(-ENOENT);
 	if (dname_to_vma_addr(dentry, &vm_start, &vm_end))
-		goto out_unlock;
+		goto out_put_task;
 
 	mm = get_task_mm(task);
 	if (!mm)
-		goto out_unlock;
+		goto out_put_task;
 
 	down_read(&mm->mmap_sem);
 	vma = find_exact_vma(mm, vm_start, vm_end);
@@ -2198,8 +2183,6 @@ static struct dentry *proc_map_files_lookup(struct inode *dir,
 out_no_vma:
 	up_read(&mm->mmap_sem);
 	mmput(mm);
-out_unlock:
-	unlock_trace(task);
 out_put_task:
 	put_task_struct(task);
 out:
@@ -2233,7 +2216,7 @@ proc_map_files_readdir(struct file *filp, void *dirent, filldir_t filldir)
 		goto out;
 
 	ret = -EACCES;
-	if (lock_trace(task))
+	if (!ptrace_may_access(task, PTRACE_MODE_READ))
 		goto out_put_task;
 
 	ret = 0;
@@ -2241,12 +2224,12 @@ proc_map_files_readdir(struct file *filp, void *dirent, filldir_t filldir)
 	case 0:
 		ino = inode->i_ino;
 		if (filldir(dirent, ".", 1, 0, ino, DT_DIR) < 0)
-			goto out_unlock;
+			goto out_put_task;
 		filp->f_pos++;
 	case 1:
 		ino = parent_ino(dentry);
 		if (filldir(dirent, "..", 2, 1, ino, DT_DIR) < 0)
-			goto out_unlock;
+			goto out_put_task;
 		filp->f_pos++;
 	default:
 	{
@@ -2257,7 +2240,7 @@ proc_map_files_readdir(struct file *filp, void *dirent, filldir_t filldir)
 
 		mm = get_task_mm(task);
 		if (!mm)
-			goto out_unlock;
+			goto out_put_task;
 		down_read(&mm->mmap_sem);
 
 		nr_files = 0;
@@ -2287,7 +2270,7 @@ proc_map_files_readdir(struct file *filp, void *dirent, filldir_t filldir)
 					flex_array_free(fa);
 				up_read(&mm->mmap_sem);
 				mmput(mm);
-				goto out_unlock;
+				goto out_put_task;
 			}
 			for (i = 0, vma = mm->mmap, pos = 2; vma;
 					vma = vma->vm_next) {
@@ -2332,8 +2315,6 @@ proc_map_files_readdir(struct file *filp, void *dirent, filldir_t filldir)
 	}
 	}
 
-out_unlock:
-	unlock_trace(task);
 out_put_task:
 	put_task_struct(task);
 out:

include/linux/blkdev.h

@@ -1,9 +1,10 @@
 #ifndef _LINUX_BLKDEV_H
 #define _LINUX_BLKDEV_H
 
+#include <linux/sched.h>
+
 #ifdef CONFIG_BLOCK
 
-#include <linux/sched.h>
 #include <linux/major.h>
 #include <linux/genhd.h>
 #include <linux/list.h>

include/linux/fs.h

@@ -2051,6 +2051,7 @@ extern void unregister_blkdev(unsigned int, const char *);
 extern struct block_device *bdget(dev_t);
 extern struct block_device *bdgrab(struct block_device *bdev);
 extern void bd_set_size(struct block_device *, loff_t size);
+extern sector_t blkdev_max_block(struct block_device *bdev);
 extern void bd_forget(struct inode *inode);
 extern void bdput(struct block_device *);
 extern void invalidate_bdev(struct block_device *);

include/linux/ftrace_event.h

@@ -179,6 +179,7 @@ enum {
 	TRACE_EVENT_FL_RECORDED_CMD_BIT,
 	TRACE_EVENT_FL_CAP_ANY_BIT,
 	TRACE_EVENT_FL_NO_SET_FILTER_BIT,
+	TRACE_EVENT_FL_IGNORE_ENABLE_BIT,
 };
 
 enum {
@@ -187,6 +188,7 @@ enum {
 	TRACE_EVENT_FL_RECORDED_CMD	= (1 << TRACE_EVENT_FL_RECORDED_CMD_BIT),
 	TRACE_EVENT_FL_CAP_ANY		= (1 << TRACE_EVENT_FL_CAP_ANY_BIT),
 	TRACE_EVENT_FL_NO_SET_FILTER	= (1 << TRACE_EVENT_FL_NO_SET_FILTER_BIT),
+	TRACE_EVENT_FL_IGNORE_ENABLE	= (1 << TRACE_EVENT_FL_IGNORE_ENABLE_BIT),
 };
 
 struct ftrace_event_call {

include/linux/genhd.h

@@ -222,12 +222,6 @@ static inline void part_pack_uuid(const u8 *uuid_str, u8 *to)
 	}
 }
 
-static inline char *part_unpack_uuid(const u8 *uuid, char *out)
-{
-	sprintf(out, "%pU", uuid);
-	return out;
-}
-
 static inline int disk_max_parts(struct gendisk *disk)
 {
 	if (disk->flags & GENHD_FL_EXT_DEVT)

kernel/sched/core.c

@@ -6382,6 +6382,8 @@ static int __sdt_alloc(const struct cpumask *cpu_map)
 			if (!sg)
 				return -ENOMEM;
 
+			sg->next = sg;
+
 			*per_cpu_ptr(sdd->sg, j) = sg;
 
 			sgp = kzalloc_node(sizeof(struct sched_group_power),

kernel/trace/trace_events.c

@@ -294,6 +294,9 @@ static int __ftrace_set_clr_event(const char *match, const char *sub,
 		if (!call->name || !call->class || !call->class->reg)
 			continue;
 
+		if (call->flags & TRACE_EVENT_FL_IGNORE_ENABLE)
+			continue;
+
 		if (match &&
 		    strcmp(match, call->name) != 0 &&
 		    strcmp(match, call->class->system) != 0)
@@ -1164,7 +1167,7 @@ event_create_dir(struct ftrace_event_call *call, struct dentry *d_events,
 		return -1;
 	}
 
-	if (call->class->reg)
+	if (call->class->reg && !(call->flags & TRACE_EVENT_FL_IGNORE_ENABLE))
 		trace_create_file("enable", 0644, call->dir, call,
 				  enable);
 

kernel/trace/trace_export.c

@@ -180,6 +180,7 @@ struct ftrace_event_call __used event_##call = {			\
 	.event.type		= etype,				\
 	.class			= &event_class_ftrace_##call,		\
 	.print_fmt		= print,				\
+	.flags			= TRACE_EVENT_FL_IGNORE_ENABLE,		\
 };									\
 struct ftrace_event_call __used						\
 __attribute__((section("_ftrace_events"))) *__event_##call = &event_##call;

mm/memcontrol.c

@@ -5481,7 +5481,7 @@ static int mem_cgroup_move_charge_pte_range(pmd_t *pmd,
 	 *    part of thp split is not executed yet.
 	 */
 	if (pmd_trans_huge_lock(pmd, vma) == 1) {
-		if (!mc.precharge) {
+		if (mc.precharge < HPAGE_PMD_NR) {
 			spin_unlock(&vma->vm_mm->page_table_lock);
 			return 0;
 		}

mm/slub.c

@@ -2040,7 +2040,7 @@ static bool has_cpu_slab(int cpu, void *info)
 	struct kmem_cache *s = info;
 	struct kmem_cache_cpu *c = per_cpu_ptr(s->cpu_slab, cpu);
 
-	return !!(c->page);
+	return c->page || c->partial;
 }
 
 static void flush_all(struct kmem_cache *s)

net/core/pktgen.c

@@ -3749,13 +3749,13 @@ static void __exit pg_cleanup(void)
 {
 	struct pktgen_thread *t;
 	struct list_head *q, *n;
-	struct list_head list;
+	LIST_HEAD(list);
 
 	/* Stop all interfaces & threads */
 	pktgen_exiting = true;
 
 	mutex_lock(&pktgen_thread_lock);
-	list_splice(&list, &pktgen_threads);
+	list_splice_init(&pktgen_threads, &list);
 	mutex_unlock(&pktgen_thread_lock);
 
 	list_for_each_safe(q, n, &list) {

net/ipv4/tcp.c

@@ -917,7 +917,6 @@ new_segment:
 wait_for_sndbuf:
 		set_bit(SOCK_NOSPACE, &sk->sk_socket->flags);
 wait_for_memory:
-		if (copied)
 		tcp_push(sk, flags & ~MSG_MORE, mss_now, TCP_NAGLE_PUSH);
 
 		if ((err = sk_stream_wait_memory(sk, &timeo)) != 0)

scripts/Makefile

@@ -8,6 +8,8 @@
 # conmakehash:	 Create arrays for initializing the kernel console tables
 # docproc:       Used in Documentation/DocBook
 
+HOST_EXTRACFLAGS += -I$(srctree)/tools/include
+
 hostprogs-$(CONFIG_KALLSYMS)     += kallsyms
 hostprogs-$(CONFIG_LOGO)         += pnmtologo
 hostprogs-$(CONFIG_VT)           += conmakehash

tools/perf/Makefile

@@ -774,10 +774,10 @@ $(OUTPUT)perf.o perf.spec \
 # over the general rule for .o
 
 $(OUTPUT)util/%-flex.o: $(OUTPUT)util/%-flex.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -Iutil/ -Wno-redundant-decls -Wno-switch-default -Wno-unused-function $<
+	$(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -Iutil/ -w $<
 
 $(OUTPUT)util/%-bison.o: $(OUTPUT)util/%-bison.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -DYYENABLE_NLS=0 -DYYLTYPE_IS_TRIVIAL=0 -Iutil/ -Wno-redundant-decls -Wno-switch-default -Wno-unused-function $<
+	$(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -DYYENABLE_NLS=0 -DYYLTYPE_IS_TRIVIAL=0 -Iutil/ -w $<
 
 $(OUTPUT)%.o: %.c $(OUTPUT)PERF-CFLAGS
 	$(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) $<

tools/perf/builtin-stat.c

@@ -283,6 +283,8 @@ static int create_perf_stat_counter(struct perf_evsel *evsel,
 {
 	struct perf_event_attr *attr = &evsel->attr;
 	struct xyarray *group_fd = NULL;
+	bool exclude_guest_missing = false;
+	int ret;
 
 	if (group && evsel != first)
 		group_fd = first->fd;
@@ -293,16 +295,39 @@ static int create_perf_stat_counter(struct perf_evsel *evsel,
 
 	attr->inherit = !no_inherit;
 
-	if (system_wide)
+retry:
-		return perf_evsel__open_per_cpu(evsel, evsel_list->cpus,
+	if (exclude_guest_missing)
+		evsel->attr.exclude_guest = evsel->attr.exclude_host = 0;
+
+	if (system_wide) {
+		ret = perf_evsel__open_per_cpu(evsel, evsel_list->cpus,
 						group, group_fd);
+		if (ret)
+			goto check_ret;
+		return 0;
+	}
+
 	if (!target_pid && !target_tid && (!group || evsel == first)) {
 		attr->disabled = 1;
 		attr->enable_on_exec = 1;
 	}
 
-	return perf_evsel__open_per_thread(evsel, evsel_list->threads,
+	ret = perf_evsel__open_per_thread(evsel, evsel_list->threads,
 					  group, group_fd);
+	if (!ret)
+		return 0;
+	/* fall through */
+check_ret:
+	if (ret && errno == EINVAL) {
+		if (!exclude_guest_missing &&
+		    (evsel->attr.exclude_guest || evsel->attr.exclude_host)) {
+			pr_debug("Old kernel, cannot exclude "
+				 "guest or host samples.\n");
+			exclude_guest_missing = true;
+			goto retry;
+		}
+	}
+	return ret;
 }
 
 /*
@@ -463,8 +488,13 @@ static int run_perf_stat(int argc __used, const char **argv)
 
 	list_for_each_entry(counter, &evsel_list->entries, node) {
 		if (create_perf_stat_counter(counter, first) < 0) {
+			/*
+			 * PPC returns ENXIO for HW counters until 2.6.37
+			 * (behavior changed with commit b0a873e).
+			 */
 			if (errno == EINVAL || errno == ENOSYS ||
-			    errno == ENOENT || errno == EOPNOTSUPP) {
+			    errno == ENOENT || errno == EOPNOTSUPP ||
+			    errno == ENXIO) {
 				if (verbose)
 					ui__warning("%s event is not supported by the kernel.\n",
 						    event_name(counter));

tools/perf/util/header.c

@@ -296,7 +296,7 @@ int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
 	if (mkdir_p(filename, 0755))
 		goto out_free;
 
-	snprintf(filename + len, sizeof(filename) - len, "/%s", sbuild_id);
+	snprintf(filename + len, size - len, "/%s", sbuild_id);
 
 	if (access(filename, F_OK)) {
 		if (is_kallsyms) {