---

yaml
---
r: 276417
b: refs/heads/master
c: 11948b9
h: refs/heads/master
i:
  276415: 7d77c6e
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 45e713efe2fa574b6662e7fb63fae9497c5e03d4
+refs/heads/master: 11948b9335865dc0ba3a5ca2c9c255291a8d50fb

trunk/Documentation/kernel-parameters.txt

@@ -315,8 +315,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			CPU-intensive style benchmark, and it can vary highly in
 			a microbenchmark depending on workload and compiler.
 
-			32: only for 32-bit processes
-			64: only for 64-bit processes
+			1: only for 32-bit processes
+			2: only for 64-bit processes
 			on: enable for both 32- and 64-bit processes
 			off: disable for both 32- and 64-bit processes
 

trunk/arch/arm/kernel/perf_event.c

@@ -353,15 +353,15 @@ validate_group(struct perf_event *event)
 	fake_pmu.used_mask = fake_used_mask;
 
 	if (!validate_event(&fake_pmu, leader))
-		return -EINVAL;
+		return -ENOSPC;
 
 	list_for_each_entry(sibling, &leader->sibling_list, group_entry) {
 		if (!validate_event(&fake_pmu, sibling))
-			return -EINVAL;
+			return -ENOSPC;
 	}
 
 	if (!validate_event(&fake_pmu, event))
-		return -EINVAL;
+		return -ENOSPC;
 
 	return 0;
 }

trunk/arch/mips/kernel/perf_event_mipsxx.c

@@ -623,7 +623,7 @@ static int mipspmu_event_init(struct perf_event *event)
 	if (!atomic_inc_not_zero(&active_events)) {
 		if (atomic_read(&active_events) > MIPS_MAX_HWEVENTS) {
 			atomic_dec(&active_events);
-			return -EINVAL;
+			return -ENOSPC;
 		}
 
 		mutex_lock(&pmu_reserve_mutex);
@@ -732,15 +732,15 @@ static int validate_group(struct perf_event *event)
 	memset(&fake_cpuc, 0, sizeof(fake_cpuc));
 
 	if (!validate_event(&fake_cpuc, leader))
-		return -EINVAL;
+		return -ENOSPC;
 
 	list_for_each_entry(sibling, &leader->sibling_list, group_entry) {
 		if (!validate_event(&fake_cpuc, sibling))
-			return -EINVAL;
+			return -ENOSPC;
 	}
 
 	if (!validate_event(&fake_cpuc, event))
-		return -EINVAL;
+		return -ENOSPC;
 
 	return 0;
 }

trunk/arch/s390/include/asm/pgtable.h

@@ -599,10 +599,10 @@ static inline pgste_t pgste_update_all(pte_t *ptep, pgste_t pgste)
 	skey = page_get_storage_key(address);
 	bits = skey & (_PAGE_CHANGED | _PAGE_REFERENCED);
 	/* Clear page changed & referenced bit in the storage key */
-	if (bits & _PAGE_CHANGED)
-		page_set_storage_key(address, skey ^ bits, 1);
-	else if (bits)
-		page_reset_referenced(address);
+	if (bits) {
+		skey ^= bits;
+		page_set_storage_key(address, skey, 1);
+	}
 	/* Transfer page changed & referenced bit to guest bits in pgste */
 	pgste_val(pgste) |= bits << 48;		/* RCP_GR_BIT & RCP_GC_BIT */
 	/* Get host changed & referenced bits from pgste */

trunk/arch/s390/kernel/ptrace.c

@@ -296,6 +296,13 @@ static int __poke_user(struct task_struct *child, addr_t addr, addr_t data)
 		     ((data & PSW_MASK_EA) && !(data & PSW_MASK_BA))))
 			/* Invalid psw mask. */
 			return -EINVAL;
+		if (addr == (addr_t) &dummy->regs.psw.addr)
+			/*
+			 * The debugger changed the instruction address,
+			 * reset system call restart, see signal.c:do_signal
+			 */
+			task_thread_info(child)->system_call = 0;
+
 		*(addr_t *)((addr_t) &task_pt_regs(child)->psw + addr) = data;
 
 	} else if (addr < (addr_t) (&dummy->regs.orig_gpr2)) {
@@ -607,6 +614,11 @@ static int __poke_user_compat(struct task_struct *child,
 			/* Transfer 31 bit amode bit to psw mask. */
 			regs->psw.mask = (regs->psw.mask & ~PSW_MASK_BA) |
 				(__u64)(tmp & PSW32_ADDR_AMODE);
+			/*
+			 * The debugger changed the instruction address,
+			 * reset system call restart, see signal.c:do_signal
+			 */
+			task_thread_info(child)->system_call = 0;
 		} else {
 			/* gpr 0-15 */
 			*(__u32*)((addr_t) &regs->psw + addr*2 + 4) = tmp;
@@ -893,14 +905,6 @@ static int s390_last_break_get(struct task_struct *target,
 	return 0;
 }
 
-static int s390_last_break_set(struct task_struct *target,
-			       const struct user_regset *regset,
-			       unsigned int pos, unsigned int count,
-			       const void *kbuf, const void __user *ubuf)
-{
-	return 0;
-}
-
 #endif
 
 static int s390_system_call_get(struct task_struct *target,
@@ -947,7 +951,6 @@ static const struct user_regset s390_regsets[] = {
 		.size = sizeof(long),
 		.align = sizeof(long),
 		.get = s390_last_break_get,
-		.set = s390_last_break_set,
 	},
 #endif
 	[REGSET_SYSTEM_CALL] = {
@@ -1113,14 +1116,6 @@ static int s390_compat_last_break_get(struct task_struct *target,
 	return 0;
 }
 
-static int s390_compat_last_break_set(struct task_struct *target,
-				      const struct user_regset *regset,
-				      unsigned int pos, unsigned int count,
-				      const void *kbuf, const void __user *ubuf)
-{
-	return 0;
-}
-
 static const struct user_regset s390_compat_regsets[] = {
 	[REGSET_GENERAL] = {
 		.core_note_type = NT_PRSTATUS,
@@ -1144,7 +1139,6 @@ static const struct user_regset s390_compat_regsets[] = {
 		.size = sizeof(long),
 		.align = sizeof(long),
 		.get = s390_compat_last_break_get,
-		.set = s390_compat_last_break_set,
 	},
 	[REGSET_SYSTEM_CALL] = {
 		.core_note_type = NT_S390_SYSTEM_CALL,

trunk/arch/s390/kernel/setup.c

@@ -579,7 +579,7 @@ static unsigned long __init find_crash_base(unsigned long crash_size,
 		*msg = "first memory chunk must be at least crashkernel size";
 		return 0;
 	}
-	if (OLDMEM_BASE && crash_size == OLDMEM_SIZE)
+	if (is_kdump_kernel() && (crash_size == OLDMEM_SIZE))
 		return OLDMEM_BASE;
 
 	for (i = MEMORY_CHUNKS - 1; i >= 0; i--) {

trunk/arch/s390/kernel/signal.c

@@ -460,9 +460,9 @@ void do_signal(struct pt_regs *regs)
 						     regs->svc_code >> 16);
 				break;
 			}
+			/* No longer in a system call */
+			clear_thread_flag(TIF_SYSCALL);
 		}
-		/* No longer in a system call */
-		clear_thread_flag(TIF_SYSCALL);
 
 		if ((is_compat_task() ?
 		     handle_signal32(signr, &ka, &info, oldset, regs) :
@@ -486,7 +486,6 @@ void do_signal(struct pt_regs *regs)
 	}
 
 	/* No handlers present - check for system call restart */
-	clear_thread_flag(TIF_SYSCALL);
 	if (current_thread_info()->system_call) {
 		regs->svc_code = current_thread_info()->system_call;
 		switch (regs->gprs[2]) {
@@ -501,6 +500,9 @@ void do_signal(struct pt_regs *regs)
 			regs->gprs[2] = regs->orig_gpr2;
 			set_thread_flag(TIF_SYSCALL);
 			break;
+		default:
+			clear_thread_flag(TIF_SYSCALL);
+			break;
 		}
 	}
 

trunk/arch/x86/include/asm/intel_scu_ipc.h

@@ -3,15 +3,11 @@
 
 #include <linux/notifier.h>
 
-#define IPCMSG_WARM_RESET	0xF0
-#define IPCMSG_COLD_RESET	0xF1
-#define IPCMSG_SOFT_RESET	0xF2
-#define IPCMSG_COLD_BOOT	0xF3
-
-#define IPCMSG_VRTC		0xFA	 /* Set vRTC device */
-	/* Command id associated with message IPCMSG_VRTC */
-	#define IPC_CMD_VRTC_SETTIME      1 /* Set time */
-	#define IPC_CMD_VRTC_SETALARM     2 /* Set alarm */
+#define IPCMSG_VRTC	0xFA	 /* Set vRTC device */
+
+/* Command id associated with message IPCMSG_VRTC */
+#define IPC_CMD_VRTC_SETTIME      1 /* Set time */
+#define IPC_CMD_VRTC_SETALARM     2 /* Set alarm */
 
 /* Read single register */
 int intel_scu_ipc_ioread8(u16 addr, u8 *data);

trunk/arch/x86/include/asm/mrst.h

@@ -31,20 +31,11 @@ enum mrst_cpu_type {
 };
 
 extern enum mrst_cpu_type __mrst_cpu_chip;
-
-#ifdef CONFIG_X86_INTEL_MID
-
 static inline enum mrst_cpu_type mrst_identify_cpu(void)
 {
 	return __mrst_cpu_chip;
 }
 
-#else /* !CONFIG_X86_INTEL_MID */
-
-#define mrst_identify_cpu()    (0)
-
-#endif /* !CONFIG_X86_INTEL_MID */
-
 enum mrst_timer_options {
 	MRST_TIMER_DEFAULT,
 	MRST_TIMER_APBT_ONLY,

trunk/arch/x86/include/asm/msr.h

@@ -169,14 +169,7 @@ static inline int wrmsr_safe(unsigned msr, unsigned low, unsigned high)
 	return native_write_msr_safe(msr, low, high);
 }
 
-/*
- * rdmsr with exception handling.
- *
- * Please note that the exception handling works only after we've
- * switched to the "smart" #GP handler in trap_init() which knows about
- * exception tables - using this macro earlier than that causes machine
- * hangs on boxes which do not implement the @msr in the first argument.
- */
+/* rdmsr with exception handling */
 #define rdmsr_safe(msr, p1, p2)					\
 ({								\
 	int __err;						\

trunk/arch/x86/include/asm/timer.h

@@ -32,22 +32,6 @@ extern int no_timer_check;
  *  (mathieu.desnoyers@polymtl.ca)
  *
  *			-johnstul@us.ibm.com "math is hard, lets go shopping!"
- *
- * In:
- *
- * ns = cycles * cyc2ns_scale / SC
- *
- * Although we may still have enough bits to store the value of ns,
- * in some cases, we may not have enough bits to store cycles * cyc2ns_scale,
- * leading to an incorrect result.
- *
- * To avoid this, we can decompose 'cycles' into quotient and remainder
- * of division by SC.  Then,
- *
- * ns = (quot * SC + rem) * cyc2ns_scale / SC
- *    = quot * cyc2ns_scale + (rem * cyc2ns_scale) / SC
- *
- *			- sqazi@google.com
  */
 
 DECLARE_PER_CPU(unsigned long, cyc2ns);
@@ -57,14 +41,9 @@ DECLARE_PER_CPU(unsigned long long, cyc2ns_offset);
 
 static inline unsigned long long __cycles_2_ns(unsigned long long cyc)
 {
-	unsigned long long quot;
-	unsigned long long rem;
 	int cpu = smp_processor_id();
 	unsigned long long ns = per_cpu(cyc2ns_offset, cpu);
-	quot = (cyc >> CYC2NS_SCALE_FACTOR);
-	rem = cyc & ((1ULL << CYC2NS_SCALE_FACTOR) - 1);
-	ns += quot * per_cpu(cyc2ns, cpu) +
-		((rem * per_cpu(cyc2ns, cpu)) >> CYC2NS_SCALE_FACTOR);
+	ns += cyc * per_cpu(cyc2ns, cpu) >> CYC2NS_SCALE_FACTOR;
 	return ns;
 }
 

trunk/arch/x86/include/asm/uv/uv_mmrs.h

@@ -57,7 +57,6 @@
 
 #define UV1_HUB_PART_NUMBER	0x88a5
 #define UV2_HUB_PART_NUMBER	0x8eb8
-#define UV2_HUB_PART_NUMBER_X	0x1111
 
 /* Compat: if this #define is present, UV headers support UV2 */
 #define UV2_HUB_IS_SUPPORTED	1

trunk/arch/x86/kernel/apic/x2apic_uv_x.c

@@ -93,8 +93,6 @@ static int __init early_get_pnodeid(void)
 
 	if (node_id.s.part_number == UV2_HUB_PART_NUMBER)
 		uv_min_hub_revision_id += UV2_HUB_REVISION_BASE - 1;
-	if (node_id.s.part_number == UV2_HUB_PART_NUMBER_X)
-		uv_min_hub_revision_id += UV2_HUB_REVISION_BASE - 1;
 
 	uv_hub_info->hub_revision = uv_min_hub_revision_id;
 	pnode = (node_id.s.node_id >> 1) & ((1 << m_n_config.s.n_skt) - 1);

trunk/arch/x86/kernel/cpu/mtrr/generic.c

@@ -547,7 +547,6 @@ static void generic_get_mtrr(unsigned int reg, unsigned long *base,
 
 		if (tmp != mask_lo) {
 			printk(KERN_WARNING "mtrr: your BIOS has configured an incorrect mask, fixing it.\n");
-			add_taint(TAINT_FIRMWARE_WORKAROUND);
 			mask_lo = tmp;
 		}
 	}
@@ -694,7 +693,6 @@ static void prepare_set(void) __acquires(set_atomicity_lock)
 
 	/* Disable MTRRs, and set the default type to uncached */
 	mtrr_wrmsr(MSR_MTRRdefType, deftype_lo & ~0xcff, deftype_hi);
-	wbinvd();
 }
 
 static void post_set(void) __releases(set_atomicity_lock)

trunk/arch/x86/kernel/cpu/perf_event.c

@@ -312,8 +312,12 @@ int x86_setup_perfctr(struct perf_event *event)
 			return -EOPNOTSUPP;
 	}
 
+	/*
+	 * Do not allow config1 (extended registers) to propagate,
+	 * there's no sane user-space generalization yet:
+	 */
 	if (attr->type == PERF_TYPE_RAW)
-		return x86_pmu_extra_regs(event->attr.config, event);
+		return 0;
 
 	if (attr->type == PERF_TYPE_HW_CACHE)
 		return set_ext_hw_attr(hwc, event);
@@ -584,7 +588,7 @@ int x86_schedule_events(struct cpu_hw_events *cpuc, int n, int *assign)
 				x86_pmu.put_event_constraints(cpuc, cpuc->event_list[i]);
 		}
 	}
-	return num ? -EINVAL : 0;
+	return num ? -ENOSPC : 0;
 }
 
 /*
@@ -603,7 +607,7 @@ static int collect_events(struct cpu_hw_events *cpuc, struct perf_event *leader,
 
 	if (is_x86_event(leader)) {
 		if (n >= max_count)
-			return -EINVAL;
+			return -ENOSPC;
 		cpuc->event_list[n] = leader;
 		n++;
 	}
@@ -616,7 +620,7 @@ static int collect_events(struct cpu_hw_events *cpuc, struct perf_event *leader,
 			continue;
 
 		if (n >= max_count)
-			return -EINVAL;
+			return -ENOSPC;
 
 		cpuc->event_list[n] = event;
 		n++;
@@ -1312,7 +1316,7 @@ static int validate_event(struct perf_event *event)
 	c = x86_pmu.get_event_constraints(fake_cpuc, event);
 
 	if (!c || !c->weight)
-		ret = -EINVAL;
+		ret = -ENOSPC;
 
 	if (x86_pmu.put_event_constraints)
 		x86_pmu.put_event_constraints(fake_cpuc, event);
@@ -1337,7 +1341,7 @@ static int validate_group(struct perf_event *event)
 {
 	struct perf_event *leader = event->group_leader;
 	struct cpu_hw_events *fake_cpuc;
-	int ret = -EINVAL, n;
+	int ret = -ENOSPC, n;
 
 	fake_cpuc = allocate_fake_cpuc();
 	if (IS_ERR(fake_cpuc))