Merge master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6

Conflicts:

	drivers/usb/input/Makefile
	drivers/usb/input/gtco.c

13 files changed, 278 insertions, 58 deletions

diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 9197d7b361b3..3549c94467b8 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -651,7 +651,7 @@ int __init acpi_boot_init(void)
 	 * information -- the successor to MPS tables.
 	 */
 
-	if (acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt) < 1) {
+	if (acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt)) {
 		printk(KERN_ERR PREFIX "Can't find MADT\n");
 		goto skip_madt;
 	}
@@ -702,7 +702,7 @@ int __init acpi_boot_init(void)
 	 * gets interrupts such as power and sleep buttons.  If it's not
 	 * on a Legacy interrupt, it needs to be setup.
 	 */
-	if (acpi_table_parse(ACPI_SIG_FADT, acpi_parse_fadt) < 1)
+	if (acpi_table_parse(ACPI_SIG_FADT, acpi_parse_fadt))
 		printk(KERN_ERR PREFIX "Can't find FADT\n");
 
 #ifdef CONFIG_SMP
diff --git a/arch/ia64/kernel/asm-offsets.c b/arch/ia64/kernel/asm-offsets.c
index 75a2a2c12258..2236fabbb3c6 100644
--- a/arch/ia64/kernel/asm-offsets.c
+++ b/arch/ia64/kernel/asm-offsets.c
@@ -35,6 +35,7 @@ void foo(void)
 	BLANK();
 
 	DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
+	DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
 	DEFINE(TI_PRE_COUNT, offsetof(struct thread_info, preempt_count));
 
 	BLANK();
diff --git a/arch/ia64/kernel/crash.c b/arch/ia64/kernel/crash.c
index 5cdd2f5fa064..80a94e707827 100644
--- a/arch/ia64/kernel/crash.c
+++ b/arch/ia64/kernel/crash.c
@@ -21,9 +21,9 @@
 #include <asm/mca.h>
 
 int kdump_status[NR_CPUS];
-atomic_t kdump_cpu_freezed;
+static atomic_t kdump_cpu_frozen;
 atomic_t kdump_in_progress;
-int kdump_on_init = 1;
+static int kdump_on_init = 1;
 
 static inline Elf64_Word
 *append_elf_note(Elf64_Word *buf, char *name, unsigned type, void *data,
@@ -86,7 +86,7 @@ kdump_wait_cpu_freeze(void)
 	int cpu_num = num_online_cpus() - 1;
 	int timeout = 1000;
 	while(timeout-- > 0) {
-		if (atomic_read(&kdump_cpu_freezed) == cpu_num)
+		if (atomic_read(&kdump_cpu_frozen) == cpu_num)
 			return 0;
 		udelay(1000);
 	}
@@ -108,8 +108,8 @@ machine_crash_shutdown(struct pt_regs *pt)
 	kexec_disable_iosapic();
 #ifdef CONFIG_SMP
 	kdump_smp_send_stop();
+	/* not all cpu response to IPI, send INIT to freeze them */
 	if (kdump_wait_cpu_freeze() && kdump_on_init) 	{
-		//not all cpu response to IPI, send INIT to freeze them
 		kdump_smp_send_init();
 	}
 #endif
@@ -136,7 +136,7 @@ kdump_cpu_freeze(struct unw_frame_info *info, void *arg)
 	cpuid = smp_processor_id();
 	crash_save_this_cpu();
 	current->thread.ksp = (__u64)info->sw - 16;
-	atomic_inc(&kdump_cpu_freezed);
+	atomic_inc(&kdump_cpu_frozen);
 	kdump_status[cpuid] = 1;
 	mb();
 #ifdef CONFIG_HOTPLUG_CPU
@@ -164,7 +164,7 @@ kdump_init_notifier(struct notifier_block *self, unsigned long val, void *data)
 
 	nd = (struct ia64_mca_notify_die *)args->err;
 	/* Reason code 1 means machine check rendezous*/
-	if ((val == DIE_INIT_MONARCH_ENTER || DIE_INIT_SLAVE_ENTER) &&
+	if ((val == DIE_INIT_MONARCH_ENTER || val == DIE_INIT_SLAVE_ENTER) &&
 		 nd->sos->rv_rc == 1)
 		return NOTIFY_DONE;
 
diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c
index 772ba6fe110f..f45f91d38cab 100644
--- a/arch/ia64/kernel/efi.c
+++ b/arch/ia64/kernel/efi.c
@@ -21,6 +21,7 @@
  *	Skip non-WB memory and ignore empty memory ranges.
  */
 #include <linux/module.h>
+#include <linux/bootmem.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/types.h>
@@ -970,6 +971,11 @@ efi_memmap_init(unsigned long *s, unsigned long *e)
 		if (!is_memory_available(md))
 			continue;
 
+#ifdef CONFIG_CRASH_DUMP
+		/* saved_max_pfn should ignore max_addr= command line arg */
+		if (saved_max_pfn < (efi_md_end(md) >> PAGE_SHIFT))
+			saved_max_pfn = (efi_md_end(md) >> PAGE_SHIFT);
+#endif
 		/*
 		 * Round ends inward to granule boundaries
 		 * Give trimmings to uncached allocator
@@ -1136,7 +1142,7 @@ efi_initialize_iomem_resources(struct resource *code_resource,
 /* find a block of memory aligned to 64M exclude reserved regions
    rsvd_regions are sorted
  */
-unsigned long
+unsigned long __init
 kdump_find_rsvd_region (unsigned long size,
 		struct rsvd_region *r, int n)
 {
@@ -1177,3 +1183,33 @@ kdump_find_rsvd_region (unsigned long size,
   return ~0UL;
 }
 #endif
+
+#ifdef CONFIG_PROC_VMCORE
+/* locate the size find a the descriptor at a certain address */
+unsigned long
+vmcore_find_descriptor_size (unsigned long address)
+{
+	void *efi_map_start, *efi_map_end, *p;
+	efi_memory_desc_t *md;
+	u64 efi_desc_size;
+	unsigned long ret = 0;
+
+	efi_map_start = __va(ia64_boot_param->efi_memmap);
+	efi_map_end   = efi_map_start + ia64_boot_param->efi_memmap_size;
+	efi_desc_size = ia64_boot_param->efi_memdesc_size;
+
+	for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) {
+		md = p;
+		if (efi_wb(md) && md->type == EFI_LOADER_DATA
+		    && md->phys_addr == address) {
+			ret = efi_md_size(md);
+			break;
+		}
+	}
+
+	if (ret == 0)
+		printk(KERN_WARNING "Cannot locate EFI vmcore descriptor\n");
+
+	return ret;
+}
+#endif
diff --git a/arch/ia64/kernel/fsys.S b/arch/ia64/kernel/fsys.S
index 7a05b1cb2ad5..8589e84a27c6 100644
--- a/arch/ia64/kernel/fsys.S
+++ b/arch/ia64/kernel/fsys.S
@@ -10,6 +10,8 @@
  *			probably broke it along the way... ;-)
  * 13-Jul-04 clameter   Implement fsys_clock_gettime and revise fsys_gettimeofday to make
  *                      it capable of using memory based clocks without falling back to C code.
+ * 08-Feb-07 Fenghua Yu Implement fsys_getcpu.
+ *
  */
 
 #include <asm/asmmacro.h>
@@ -505,6 +507,59 @@ EX(.fail_efault, (p15) st8 [r34]=r3)
 #endif
 END(fsys_rt_sigprocmask)
 
+/*
+ * fsys_getcpu doesn't use the third parameter in this implementation. It reads
+ * current_thread_info()->cpu and corresponding node in cpu_to_node_map.
+ */
+ENTRY(fsys_getcpu)
+	.prologue
+	.altrp b6
+	.body
+	;;
+	add r2=TI_FLAGS+IA64_TASK_SIZE,r16
+	tnat.nz p6,p0 = r32			// guard against NaT argument
+	add r3=TI_CPU+IA64_TASK_SIZE,r16
+	;;
+	ld4 r3=[r3]				// M r3 = thread_info->cpu
+	ld4 r2=[r2]				// M r2 = thread_info->flags
+(p6)    br.cond.spnt.few .fail_einval		// B
+	;;
+	tnat.nz p7,p0 = r33			// I guard against NaT argument
+(p7)    br.cond.spnt.few .fail_einval		// B
+#ifdef CONFIG_NUMA
+	movl r17=cpu_to_node_map
+	;;
+EX(.fail_efault, probe.w.fault r32, 3)		// M This takes 5 cycles
+EX(.fail_efault, probe.w.fault r33, 3)		// M This takes 5 cycles
+	shladd r18=r3,1,r17
+	;;
+	ld2 r20=[r18]				// r20 = cpu_to_node_map[cpu]
+	and r2 = TIF_ALLWORK_MASK,r2
+	;;
+	cmp.ne p8,p0=0,r2
+(p8)	br.spnt.many fsys_fallback_syscall
+	;;
+	;;
+EX(.fail_efault, st4 [r32] = r3)
+EX(.fail_efault, st2 [r33] = r20)
+	mov r8=0
+	;;
+#else
+EX(.fail_efault, probe.w.fault r32, 3)		// M This takes 5 cycles
+EX(.fail_efault, probe.w.fault r33, 3)		// M This takes 5 cycles
+	and r2 = TIF_ALLWORK_MASK,r2
+	;;
+	cmp.ne p8,p0=0,r2
+(p8)	br.spnt.many fsys_fallback_syscall
+	;;
+EX(.fail_efault, st4 [r32] = r3)
+EX(.fail_efault, st2 [r33] = r0)
+	mov r8=0
+	;;
+#endif
+	FSYS_RETURN
+END(fsys_getcpu)
+
 ENTRY(fsys_fallback_syscall)
 	.prologue
 	.altrp b6
@@ -878,6 +933,56 @@ fsyscall_table:
 	data8 0				// timer_delete
 	data8 0				// clock_settime
 	data8 fsys_clock_gettime	// clock_gettime
+	data8 0				// clock_getres		// 1255
+	data8 0				// clock_nanosleep
+	data8 0				// fstatfs64
+	data8 0				// statfs64
+	data8 0				// mbind
+	data8 0				// get_mempolicy	// 1260
+	data8 0				// set_mempolicy
+	data8 0				// mq_open
+	data8 0				// mq_unlink
+	data8 0				// mq_timedsend
+	data8 0				// mq_timedreceive	// 1265
+	data8 0				// mq_notify
+	data8 0				// mq_getsetattr
+	data8 0				// kexec_load
+	data8 0				// vserver
+	data8 0				// waitid		// 1270
+	data8 0				// add_key
+	data8 0				// request_key
+	data8 0				// keyctl
+	data8 0				// ioprio_set
+	data8 0				// ioprio_get		// 1275
+	data8 0				// move_pages
+	data8 0				// inotify_init
+	data8 0				// inotify_add_watch
+	data8 0				// inotify_rm_watch
+	data8 0				// migrate_pages	// 1280
+	data8 0				// openat
+	data8 0				// mkdirat
+	data8 0				// mknodat
+	data8 0				// fchownat
+	data8 0				// futimesat		// 1285
+	data8 0				// newfstatat
+	data8 0				// unlinkat
+	data8 0				// renameat
+	data8 0				// linkat
+	data8 0				// symlinkat		// 1290
+	data8 0				// readlinkat
+	data8 0				// fchmodat
+	data8 0				// faccessat
+	data8 0
+	data8 0							// 1295
+	data8 0				// unshare
+	data8 0				// splice
+	data8 0				// set_robust_list
+	data8 0				// get_robust_list
+	data8 0				// sync_file_range	// 1300
+	data8 0				// tee
+	data8 0				// vmsplice
+	data8 0
+	data8 fsys_getcpu		// getcpu		// 1304
 
 	// fill in zeros for the remaining entries
 	.zero:
diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index d6aab40c6416..dcfbf3e7a9ef 100644
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -446,7 +446,7 @@ iosapic_end_level_irq (unsigned int irq)
 #define iosapic_disable_level_irq	mask_irq
 #define iosapic_ack_level_irq		nop
 
-struct hw_interrupt_type irq_type_iosapic_level = {
+struct irq_chip irq_type_iosapic_level = {
 	.name =		"IO-SAPIC-level",
 	.startup =	iosapic_startup_level_irq,
 	.shutdown =	iosapic_shutdown_level_irq,
@@ -454,6 +454,8 @@ struct hw_interrupt_type irq_type_iosapic_level = {
 	.disable =	iosapic_disable_level_irq,
 	.ack =		iosapic_ack_level_irq,
 	.end =		iosapic_end_level_irq,
+	.mask =		mask_irq,
+	.unmask =	unmask_irq,
 	.set_affinity =	iosapic_set_affinity
 };
 
@@ -493,7 +495,7 @@ iosapic_ack_edge_irq (unsigned int irq)
 #define iosapic_disable_edge_irq	nop
 #define iosapic_end_edge_irq		nop
 
-struct hw_interrupt_type irq_type_iosapic_edge = {
+struct irq_chip irq_type_iosapic_edge = {
 	.name =		"IO-SAPIC-edge",
 	.startup =	iosapic_startup_edge_irq,
 	.shutdown =	iosapic_disable_edge_irq,
@@ -501,6 +503,8 @@ struct hw_interrupt_type irq_type_iosapic_edge = {
 	.disable =	iosapic_disable_edge_irq,
 	.ack =		iosapic_ack_edge_irq,
 	.end =		iosapic_end_edge_irq,
+	.mask =		mask_irq,
+	.unmask =	unmask_irq,
 	.set_affinity =	iosapic_set_affinity
 };
 
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index a76add3e76a2..491687f84fb5 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -1192,8 +1192,6 @@ void
 ia64_mca_handler(struct pt_regs *regs, struct switch_stack *sw,
 		 struct ia64_sal_os_state *sos)
 {
-	pal_processor_state_info_t *psp = (pal_processor_state_info_t *)
-		&sos->proc_state_param;
 	int recover, cpu = smp_processor_id();
 	struct task_struct *previous_current;
 	struct ia64_mca_notify_die nd =
@@ -1223,10 +1221,8 @@ ia64_mca_handler(struct pt_regs *regs, struct switch_stack *sw,
 	/* Get the MCA error record and log it */
 	ia64_mca_log_sal_error_record(SAL_INFO_TYPE_MCA);
 
-	/* TLB error is only exist in this SAL error record */
-	recover = (psp->tc && !(psp->cc || psp->bc || psp->rc || psp->uc))
-	/* other error recovery */
-	   || (ia64_mca_ucmc_extension
+	/* MCA error recovery */
+	recover = (ia64_mca_ucmc_extension
 		&& ia64_mca_ucmc_extension(
 			IA64_LOG_CURR_BUFFER(SAL_INFO_TYPE_MCA),
 			sos));
diff --git a/arch/ia64/kernel/mca_drv.c b/arch/ia64/kernel/mca_drv.c
index afc1403799c9..832cf1e647e8 100644
--- a/arch/ia64/kernel/mca_drv.c
+++ b/arch/ia64/kernel/mca_drv.c
@@ -602,11 +602,40 @@ recover_from_platform_error(slidx_table_t *slidx, peidx_table_t *peidx,
 		default:
 			break;
 		}
+	} else if (psp->cc && !psp->bc) {	/* Cache error */
+		status = recover_from_read_error(slidx, peidx, pbci, sos);
 	}
 
 	return status;
 }
 
+/*
+ * recover_from_tlb_check
+ * @peidx:	pointer of index of processor error section
+ *
+ * Return value:
+ *	1 on Success / 0 on Failure
+ */
+static int
+recover_from_tlb_check(peidx_table_t *peidx)
+{
+	sal_log_mod_error_info_t *smei;
+	pal_tlb_check_info_t *ptci;
+
+	smei = (sal_log_mod_error_info_t *)peidx_tlb_check(peidx, 0);
+	ptci = (pal_tlb_check_info_t *)&(smei->check_info);
+
+	/*
+	 * Look for signature of a duplicate TLB DTC entry, which is
+	 * a SW bug and always fatal.
+	 */
+	if (ptci->op == PAL_TLB_CHECK_OP_PURGE
+	    && !(ptci->itr || ptci->dtc || ptci->itc))
+		return fatal_mca("Duplicate TLB entry");
+
+	return mca_recovered("TLB check recovered");
+}
+
 /**
  * recover_from_processor_error
  * @platform:	whether there are some platform error section or not
@@ -618,13 +647,6 @@ recover_from_platform_error(slidx_table_t *slidx, peidx_table_t *peidx,
  * Return value:
  *	1 on Success / 0 on Failure
  */
-/*
- *  Later we try to recover when below all conditions are satisfied.
- *   1. Only one processor error section is exist.
- *   2. BUS_CHECK is exist and the others are not exist.(Except TLB_CHECK)
- *   3. The entry of BUS_CHECK_INFO is 1.
- *   4. "External bus error" flag is set and the others are not set.
- */
 
 static int
 recover_from_processor_error(int platform, slidx_table_t *slidx,
@@ -652,38 +674,39 @@ recover_from_processor_error(int platform, slidx_table_t *slidx,
 		return fatal_mca("error not contained");
 
 	/*
+	 * Look for recoverable TLB check
+	 */
+	if (psp->tc && !(psp->cc || psp->bc || psp->rc || psp->uc))
+		return recover_from_tlb_check(peidx);
+
+	/*
 	 * The cache check and bus check bits have four possible states
 	 *   cc bc
-	 *    0  0	Weird record, not recovered
-	 *    1  0	Cache error, not recovered
-	 *    0  1	I/O error, attempt recovery
 	 *    1  1	Memory error, attempt recovery
+	 *    1  0	Cache error, attempt recovery
+	 *    0  1	I/O error, attempt recovery
+	 *    0  0	Other error type, not recovered
 	 */
-	if (psp->bc == 0 || pbci == NULL)
-		return fatal_mca("No bus check");
+	if (psp->cc == 0 && (psp->bc == 0 || pbci == NULL))
+		return fatal_mca("No cache or bus check");
 
 	/*
-	 * Sorry, we cannot handle so many.
+	 * Cannot handle more than one bus check.
 	 */
 	if (peidx_bus_check_num(peidx) > 1)
 		return fatal_mca("Too many bus checks");
-	/*
-	 * Well, here is only one bus error.
-	 */
+
 	if (pbci->ib)
 		return fatal_mca("Internal Bus error");
-	if (pbci->cc)
-		return fatal_mca("Cache-cache error");
 	if (pbci->eb && pbci->bsi > 0)
 		return fatal_mca("External bus check fatal status");
 
 	/*
-	 * This is a local MCA and estimated as recoverble external bus error.
-	 * (e.g. a load from poisoned memory)
-	 * This means "there are some platform errors".
+	 * This is a local MCA and estimated as a recoverble error.
 	 */
 	if (platform)
 		return recover_from_platform_error(slidx, peidx, pbci, sos);
+
 	/*
 	 * On account of strange SAL error record, we cannot recover.
 	 */
diff --git a/arch/ia64/kernel/msi_ia64.c b/arch/ia64/kernel/msi_ia64.c
index 0d05450c91c4..c81080df70df 100644
--- a/arch/ia64/kernel/msi_ia64.c
+++ b/arch/ia64/kernel/msi_ia64.c
@@ -60,7 +60,7 @@ static void ia64_set_msi_irq_affinity(unsigned int irq, cpumask_t cpu_mask)
 	msg.address_lo = addr;
 
 	write_msi_msg(irq, &msg);
-	set_native_irq_info(irq, cpu_mask);
+	irq_desc[irq].affinity = cpu_mask;
 }
 #endif /* CONFIG_SMP */
 
@@ -68,7 +68,7 @@ int ia64_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
 {
 	struct msi_msg	msg;
 	unsigned long	dest_phys_id;
-	unsigned int	irq, vector;
+	int	irq, vector;
 
 	irq = create_irq();
 	if (irq < 0)
@@ -76,7 +76,7 @@ int ia64_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
 
 	set_irq_msi(irq, desc);
 	dest_phys_id = cpu_physical_id(first_cpu(cpu_online_map));
-	vector = irq;
+	vector = irq_to_vector(irq);
 
 	msg.address_hi = 0;
 	msg.address_lo =
@@ -110,7 +110,7 @@ static void ia64_ack_msi_irq(unsigned int irq)
 
 static int ia64_msi_retrigger_irq(unsigned int irq)
 {
-	unsigned int vector = irq;
+	unsigned int vector = irq_to_vector(irq);
 	ia64_resend_irq(vector);
 
 	return 1;
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 2ecb20b551e1..abc7ad035886 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -147,7 +147,7 @@
  * in UP:
  * 	- we need to protect against PMU overflow interrupts (local_irq_disable)
  *
- * spin_lock_irqsave()/spin_lock_irqrestore():
+ * spin_lock_irqsave()/spin_unlock_irqrestore():
  * 	in SMP: local_irq_disable + spin_lock
  * 	in UP : local_irq_disable
  *
@@ -2299,7 +2299,7 @@ pfm_remap_buffer(struct vm_area_struct *vma, unsigned long buf, unsigned long ad
  * allocate a sampling buffer and remaps it into the user address space of the task
  */
 static int
-pfm_smpl_buffer_alloc(struct task_struct *task, pfm_context_t *ctx, unsigned long rsize, void **user_vaddr)
+pfm_smpl_buffer_alloc(struct task_struct *task, struct file *filp, pfm_context_t *ctx, unsigned long rsize, void **user_vaddr)
 {
 	struct mm_struct *mm = task->mm;
 	struct vm_area_struct *vma = NULL;
@@ -2349,6 +2349,7 @@ pfm_smpl_buffer_alloc(struct task_struct *task, pfm_context_t *ctx, unsigned lon
 	 * partially initialize the vma for the sampling buffer
 	 */
 	vma->vm_mm	     = mm;
+	vma->vm_file	     = filp;
 	vma->vm_flags	     = VM_READ| VM_MAYREAD |VM_RESERVED;
 	vma->vm_page_prot    = PAGE_READONLY; /* XXX may need to change */
 
@@ -2387,6 +2388,8 @@ pfm_smpl_buffer_alloc(struct task_struct *task, pfm_context_t *ctx, unsigned lon
 		goto error;
 	}
 
+	get_file(filp);
+
 	/*
 	 * now insert the vma in the vm list for the process, must be
 	 * done with mmap lock held
@@ -2464,7 +2467,7 @@ pfarg_is_sane(struct task_struct *task, pfarg_context_t *pfx)
 }
 
 static int
-pfm_setup_buffer_fmt(struct task_struct *task, pfm_context_t *ctx, unsigned int ctx_flags,
+pfm_setup_buffer_fmt(struct task_struct *task, struct file *filp, pfm_context_t *ctx, unsigned int ctx_flags,
 		     unsigned int cpu, pfarg_context_t *arg)
 {
 	pfm_buffer_fmt_t *fmt = NULL;
@@ -2505,7 +2508,7 @@ pfm_setup_buffer_fmt(struct task_struct *task, pfm_context_t *ctx, unsigned int
 		/*
 		 * buffer is always remapped into the caller's address space
 		 */
-		ret = pfm_smpl_buffer_alloc(current, ctx, size, &uaddr);
+		ret = pfm_smpl_buffer_alloc(current, filp, ctx, size, &uaddr);
 		if (ret) goto error;
 
 		/* keep track of user address of buffer */
@@ -2716,7 +2719,7 @@ pfm_context_create(pfm_context_t *ctx, void *arg, int count, struct pt_regs *reg
 	 * does the user want to sample?
 	 */
 	if (pfm_uuid_cmp(req->ctx_smpl_buf_id, pfm_null_uuid)) {
-		ret = pfm_setup_buffer_fmt(current, ctx, ctx_flags, 0, req);
+		ret = pfm_setup_buffer_fmt(current, filp, ctx, ctx_flags, 0, req);
 		if (ret) goto buffer_error;
 	}
 
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c
index 3f8918782e0c..00f803246948 100644
--- a/arch/ia64/kernel/ptrace.c
+++ b/arch/ia64/kernel/ptrace.c
@@ -1573,6 +1573,7 @@ sys_ptrace (long request, pid_t pid, unsigned long addr, unsigned long data)
 
 	      case PTRACE_DETACH:
 		/* detach a process that was attached. */
+		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
 		ret = ptrace_detach(child, data);
 		goto out_tsk;
 
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 5fa09d141ab7..dc7dd7648ec5 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -91,8 +91,6 @@ static struct resource code_resource = {
 	.name	= "Kernel code",
 	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM
 };
-extern void efi_initialize_iomem_resources(struct resource *,
-		struct resource *);
 extern char _text[], _end[], _etext[];
 
 unsigned long ia64_max_cacheline_size;
@@ -251,6 +249,12 @@ reserve_memory (void)
 	}
 #endif
 
+#ifdef CONFIG_PROC_VMCORE
+	if (reserve_elfcorehdr(&rsvd_region[n].start,
+			       &rsvd_region[n].end) == 0)
+		n++;
+#endif
+
 	efi_memmap_init(&rsvd_region[n].start, &rsvd_region[n].end);
 	n++;
 
@@ -453,6 +457,30 @@ static int __init parse_elfcorehdr(char *arg)
 	return 0;
 }
 early_param("elfcorehdr", parse_elfcorehdr);
+
+int __init reserve_elfcorehdr(unsigned long *start, unsigned long *end)
+{
+	unsigned long length;
+
+	/* We get the address using the kernel command line,
+	 * but the size is extracted from the EFI tables.
+	 * Both address and size are required for reservation
+	 * to work properly.
+	 */
+
+	if (elfcorehdr_addr >= ELFCORE_ADDR_MAX)
+		return -EINVAL;
+
+	if ((length = vmcore_find_descriptor_size(elfcorehdr_addr)) == 0) {
+		elfcorehdr_addr = ELFCORE_ADDR_MAX;
+		return -EINVAL;
+	}
+
+	*start = (unsigned long)__va(elfcorehdr_addr);
+	*end = *start + length;
+	return 0;
+}
+
 #endif /* CONFIG_PROC_VMCORE */
 
 void __init
@@ -612,7 +640,7 @@ show_cpuinfo (struct seq_file *m, void *v)
 		   "features   : %s\n"
 		   "cpu number : %lu\n"
 		   "cpu regs   : %u\n"
-		   "cpu MHz    : %lu.%06lu\n"
+		   "cpu MHz    : %lu.%03lu\n"
 		   "itc MHz    : %lu.%06lu\n"
 		   "BogoMIPS   : %lu.%02lu\n",
 		   cpunum, c->vendor, c->family, c->model,
@@ -664,12 +692,15 @@ struct seq_operations cpuinfo_op = {
 	.show =		show_cpuinfo
 };
 
-static char brandname[128];
+#define MAX_BRANDS	8
+static char brandname[MAX_BRANDS][128];
 
 static char * __cpuinit
 get_model_name(__u8 family, __u8 model)
 {
+	static int overflow;
 	char brand[128];
+	int i;
 
 	memcpy(brand, "Unknown", 8);
 	if (ia64_pal_get_brand_info(brand)) {
@@ -681,12 +712,17 @@ get_model_name(__u8 family, __u8 model)
 			case 2: memcpy(brand, "Madison up to 9M cache", 23); break;
 		}
 	}
-	if (brandname[0] == '\0')
-		return strcpy(brandname, brand);
-	else if (strcmp(brandname, brand) == 0)
-		return brandname;
-	else
-		return kstrdup(brand, GFP_KERNEL);
+	for (i = 0; i < MAX_BRANDS; i++)
+		if (strcmp(brandname[i], brand) == 0)
+			return brandname[i];
+	for (i = 0; i < MAX_BRANDS; i++)
+		if (brandname[i][0] == '\0')
+			return strcpy(brandname[i], brand);
+	if (overflow++ == 0)
+		printk(KERN_ERR
+		       "%s: Table overflow. Some processor model information will be missing\n",
+		       __FUNCTION__);
+	return "Unknown";
 }
 
 static void __cpuinit
diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c
index b21ddecea943..ff7df439da6d 100644
--- a/arch/ia64/kernel/smpboot.c
+++ b/arch/ia64/kernel/smpboot.c
@@ -375,6 +375,7 @@ static void __devinit
 smp_callin (void)
 {
 	int cpuid, phys_id, itc_master;
+	struct cpuinfo_ia64 *last_cpuinfo, *this_cpuinfo;
 	extern void ia64_init_itm(void);
 	extern volatile int time_keeper_id;
 
@@ -424,7 +425,21 @@ smp_callin (void)
 	 * Get our bogomips.
 	 */
 	ia64_init_itm();
-	calibrate_delay();
+
+	/*
+	 * Delay calibration can be skipped if new processor is identical to the
+	 * previous processor.
+	 */
+	last_cpuinfo = cpu_data(cpuid - 1);
+	this_cpuinfo = local_cpu_data;
+	if (last_cpuinfo->itc_freq != this_cpuinfo->itc_freq ||
+	    last_cpuinfo->proc_freq != this_cpuinfo->proc_freq ||
+	    last_cpuinfo->features != this_cpuinfo->features ||
+	    last_cpuinfo->revision != this_cpuinfo->revision ||
+	    last_cpuinfo->family != this_cpuinfo->family ||
+	    last_cpuinfo->archrev != this_cpuinfo->archrev ||
+	    last_cpuinfo->model != this_cpuinfo->model)
+		calibrate_delay();
 	local_cpu_data->loops_per_jiffy = loops_per_jiffy;
 
 #ifdef CONFIG_IA32_SUPPORT