Merge branch 'upstream-fixes'

14 files changed, 127 insertions, 33 deletions

diff --git a/arch/x86_64/defconfig b/arch/x86_64/defconfig
index 56832929a543..b337136f28b6 100644
--- a/arch/x86_64/defconfig
+++ b/arch/x86_64/defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.16-rc1-git2
-# Thu Jan 19 10:05:21 2006
+# Linux kernel version: 2.6.16-rc3
+# Mon Feb 13 22:31:24 2006
 #
 CONFIG_X86_64=y
 CONFIG_64BIT=y
@@ -21,7 +21,6 @@ CONFIG_DMI=y
 # Code maturity level options
 #
 CONFIG_EXPERIMENTAL=y
-CONFIG_CLEAN_COMPILE=y
 CONFIG_LOCK_KERNEL=y
 CONFIG_INIT_ENV_ARG_LIMIT=32
 
@@ -267,6 +266,7 @@ CONFIG_NET=y
 #
 # Networking options
 #
+# CONFIG_NETDEBUG is not set
 CONFIG_PACKET=y
 # CONFIG_PACKET_MMAP is not set
 CONFIG_UNIX=y
@@ -446,7 +446,6 @@ CONFIG_BLK_DEV_PIIX=y
 # CONFIG_BLK_DEV_NS87415 is not set
 # CONFIG_BLK_DEV_PDC202XX_OLD is not set
 CONFIG_BLK_DEV_PDC202XX_NEW=y
-# CONFIG_PDC202XX_FORCE is not set
 # CONFIG_BLK_DEV_SVWKS is not set
 # CONFIG_BLK_DEV_SIIMAGE is not set
 # CONFIG_BLK_DEV_SIS5513 is not set
@@ -573,7 +572,33 @@ CONFIG_FUSION_MAX_SGE=128
 #
 # IEEE 1394 (FireWire) support
 #
-# CONFIG_IEEE1394 is not set
+CONFIG_IEEE1394=y
+
+#
+# Subsystem Options
+#
+# CONFIG_IEEE1394_VERBOSEDEBUG is not set
+# CONFIG_IEEE1394_OUI_DB is not set
+# CONFIG_IEEE1394_EXTRA_CONFIG_ROMS is not set
+# CONFIG_IEEE1394_EXPORT_FULL_API is not set
+
+#
+# Device Drivers
+#
+
+#
+# Texas Instruments PCILynx requires I2C
+#
+CONFIG_IEEE1394_OHCI1394=y
+
+#
+# Protocol Drivers
+#
+# CONFIG_IEEE1394_VIDEO1394 is not set
+# CONFIG_IEEE1394_SBP2 is not set
+# CONFIG_IEEE1394_ETH1394 is not set
+# CONFIG_IEEE1394_DV1394 is not set
+CONFIG_IEEE1394_RAWIO=y
 
 #
 # I2O device support
@@ -772,6 +797,7 @@ CONFIG_SERIAL_8250_RUNTIME_UARTS=4
 #
 CONFIG_SERIAL_CORE=y
 CONFIG_SERIAL_CORE_CONSOLE=y
+# CONFIG_SERIAL_JSM is not set
 CONFIG_UNIX98_PTYS=y
 CONFIG_LEGACY_PTYS=y
 CONFIG_LEGACY_PTY_COUNT=256
@@ -871,6 +897,7 @@ CONFIG_HPET_MMAP=y
 #
 CONFIG_HWMON=y
 # CONFIG_HWMON_VID is not set
+# CONFIG_SENSORS_F71805F is not set
 # CONFIG_SENSORS_HDAPS is not set
 # CONFIG_HWMON_DEBUG_CHIP is not set
 
@@ -1101,7 +1128,6 @@ CONFIG_USB_MON=y
 # EDAC - error detection and reporting (RAS)
 #
 # CONFIG_EDAC is not set
-# CONFIG_EDAC_POLL is not set
 
 #
 # Firmware Drivers
@@ -1291,14 +1317,12 @@ CONFIG_DETECT_SOFTLOCKUP=y
 # CONFIG_DEBUG_SPINLOCK is not set
 # CONFIG_DEBUG_SPINLOCK_SLEEP is not set
 # CONFIG_DEBUG_KOBJECT is not set
-# CONFIG_DEBUG_INFO is not set
+CONFIG_DEBUG_INFO=y
 CONFIG_DEBUG_FS=y
 # CONFIG_DEBUG_VM is not set
 # CONFIG_FRAME_POINTER is not set
 # CONFIG_FORCED_INLINING is not set
-# CONFIG_UNWIND_INFO is not set
 # CONFIG_RCU_TORTURE_TEST is not set
-CONFIG_INIT_DEBUG=y
 # CONFIG_DEBUG_RODATA is not set
 # CONFIG_IOMMU_DEBUG is not set
 
diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S
index ada4535d0161..00dee176c08e 100644
--- a/arch/x86_64/ia32/ia32entry.S
+++ b/arch/x86_64/ia32/ia32entry.S
@@ -677,7 +677,7 @@ ia32_sys_call_table:
 	.quad sys_mknodat
 	.quad sys_fchownat
 	.quad compat_sys_futimesat
-	.quad compat_sys_newfstatat	/* 300 */
+	.quad sys32_fstatat		/* 300 */
 	.quad sys_unlinkat
 	.quad sys_renameat
 	.quad sys_linkat
diff --git a/arch/x86_64/ia32/sys_ia32.c b/arch/x86_64/ia32/sys_ia32.c
index 54481af5344a..2bc55af95419 100644
--- a/arch/x86_64/ia32/sys_ia32.c
+++ b/arch/x86_64/ia32/sys_ia32.c
@@ -180,6 +180,28 @@ sys32_fstat64(unsigned int fd, struct stat64 __user *statbuf)
 	return ret;
 }
 
+asmlinkage long
+sys32_fstatat(unsigned int dfd, char __user *filename,
+	      struct stat64 __user* statbuf, int flag)
+{
+	struct kstat stat;
+	int error = -EINVAL;
+
+	if ((flag & ~AT_SYMLINK_NOFOLLOW) != 0)
+		goto out;
+
+	if (flag & AT_SYMLINK_NOFOLLOW)
+		error = vfs_lstat_fd(dfd, filename, &stat);
+	else
+		error = vfs_stat_fd(dfd, filename, &stat);
+
+	if (!error)
+		error = cp_stat64(statbuf, &stat);
+
+out:
+	return error;
+}
+
 /*
  * Linux/i386 didn't use to be able to handle more than
  * 4 system call parameters, so these system calls used a memory
diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c
index 6147770b4347..e5b14c57eaa0 100644
--- a/arch/x86_64/kernel/apic.c
+++ b/arch/x86_64/kernel/apic.c
@@ -708,7 +708,7 @@ static void setup_APIC_timer(unsigned int clocks)
 	local_irq_save(flags);
 
 	/* wait for irq slice */
- 	if (vxtime.hpet_address) {
+ 	if (vxtime.hpet_address && hpet_use_timer) {
  		int trigger = hpet_readl(HPET_T0_CMP);
  		while (hpet_readl(HPET_COUNTER) >= trigger)
  			/* do nothing */ ;
@@ -1152,6 +1152,7 @@ __setup("noapicmaintimer", setup_noapicmaintimer);
 static __init int setup_apicpmtimer(char *s)
 {
 	apic_calibrate_pmtmr = 1;
+	notsc_setup(NULL);
 	return setup_apicmaintimer(NULL);
 }
 __setup("apicpmtimer", setup_apicpmtimer);
diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S
index b150c87a08c6..7c10e9009d61 100644
--- a/arch/x86_64/kernel/entry.S
+++ b/arch/x86_64/kernel/entry.S
@@ -554,6 +554,7 @@ iret_label:
 	/* running with kernel gs */
 bad_iret:
 	movq $-9999,%rdi	/* better code? */
+	sti
 	jmp do_exit			
 	.previous	
 	
diff --git a/arch/x86_64/kernel/head.S b/arch/x86_64/kernel/head.S
index 692c737feddb..02fc7fa0ea28 100644
--- a/arch/x86_64/kernel/head.S
+++ b/arch/x86_64/kernel/head.S
@@ -213,6 +213,11 @@ ENTRY(early_idt_handler)
 	cmpl $2,early_recursion_flag(%rip)
 	jz  1f
 	call dump_stack
+#ifdef CONFIG_KALLSYMS	
+	leaq early_idt_ripmsg(%rip),%rdi
+	movq 8(%rsp),%rsi	# get rip again
+	call __print_symbol
+#endif
 1:	hlt
 	jmp 1b
 early_recursion_flag:
@@ -220,6 +225,8 @@ early_recursion_flag:
 
 early_idt_msg:
 	.asciz "PANIC: early exception rip %lx error %lx cr2 %lx\n"
+early_idt_ripmsg:
+	.asciz "RIP %s\n"
 
 .code32
 ENTRY(no_long_mode)
diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c
index 4282d72b2a26..2585c1d92b26 100644
--- a/arch/x86_64/kernel/io_apic.c
+++ b/arch/x86_64/kernel/io_apic.c
@@ -30,6 +30,9 @@
 #include <linux/mc146818rtc.h>
 #include <linux/acpi.h>
 #include <linux/sysdev.h>
+#ifdef CONFIG_ACPI
+#include <acpi/acpi_bus.h>
+#endif
 
 #include <asm/io.h>
 #include <asm/smp.h>
@@ -260,6 +263,8 @@ __setup("apic", enable_ioapic_setup);
 
    And another hack to disable the IOMMU on VIA chipsets.
 
+   ... and others. Really should move this somewhere else.
+
    Kludge-O-Rama. */
 void __init check_ioapic(void) 
 { 
@@ -307,6 +312,17 @@ void __init check_ioapic(void)
 				case PCI_VENDOR_ID_ATI:
 					if (apic_runs_main_timer != 0)
 						break;
+#ifdef CONFIG_ACPI
+					/* Don't do this for laptops right
+					   right now because their timer
+					   doesn't necessarily tick in C2/3 */
+					if (acpi_fadt.revision >= 3 &&
+			(acpi_fadt.plvl2_lat + acpi_fadt.plvl3_lat) < 1100) {
+						printk(KERN_INFO
+"ATI board detected, but seems to be a laptop. Timer might be shakey, sorry\n");
+						break;
+					}
+#endif					
 					printk(KERN_INFO
 	     "ATI board detected. Using APIC/PM timer.\n");
 					apic_runs_main_timer = 1;
diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c
index 8be407a1f62d..5bf17e41cd2d 100644
--- a/arch/x86_64/kernel/nmi.c
+++ b/arch/x86_64/kernel/nmi.c
@@ -236,6 +236,7 @@ static void enable_lapic_nmi_watchdog(void)
 {
 	if (nmi_active < 0) {
 		nmi_watchdog = NMI_LOCAL_APIC;
+		touch_nmi_watchdog();
 		setup_apic_nmi_watchdog();
 	}
 }
@@ -456,15 +457,17 @@ static DEFINE_PER_CPU(int, nmi_touch);
 
 void touch_nmi_watchdog (void)
 {
-	int i;
+	if (nmi_watchdog > 0) {
+		unsigned cpu;
 
-	/*
- 	 * Tell other CPUs to reset their alert counters. We cannot
-	 * do it ourselves because the alert count increase is not
-	 * atomic.
-	 */
-	for (i = 0; i < NR_CPUS; i++)
-		per_cpu(nmi_touch, i) = 1;
+		/*
+ 		 * Tell other CPUs to reset their alert counters. We cannot
+		 * do it ourselves because the alert count increase is not
+		 * atomic.
+		 */
+		for_each_present_cpu (cpu)
+			per_cpu(nmi_touch, cpu) = 1;
+	}
 
  	touch_softlockup_watchdog();
 }
diff --git a/arch/x86_64/kernel/pci-gart.c b/arch/x86_64/kernel/pci-gart.c
index 2fe23a6c361b..dd0718dc178b 100644
--- a/arch/x86_64/kernel/pci-gart.c
+++ b/arch/x86_64/kernel/pci-gart.c
@@ -310,7 +310,7 @@ void gart_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, int di
 
 	for (i = 0; i < nents; i++) {
 		struct scatterlist *s = &sg[i];
-		if (!s->dma_length || !s->length)
+		if (!s->dma_length)
 			break;
 		dma_unmap_single(dev, s->dma_address, s->dma_length, dir);
 	}
@@ -364,7 +364,6 @@ static int __dma_map_cont(struct scatterlist *sg, int start, int stopat,
 		
 		BUG_ON(i > start && s->offset);
 		if (i == start) {
-			*sout = *s; 
 			sout->dma_address = iommu_bus_base;
 			sout->dma_address += iommu_page*PAGE_SIZE + s->offset;
 			sout->dma_length = s->length;
@@ -379,7 +378,7 @@ static int __dma_map_cont(struct scatterlist *sg, int start, int stopat,
 			SET_LEAK(iommu_page);
 			addr += PAGE_SIZE;
 			iommu_page++;
-	} 
+		}
 	} 
 	BUG_ON(iommu_page - iommu_start != pages);	
 	return 0;
@@ -391,7 +390,6 @@ static inline int dma_map_cont(struct scatterlist *sg, int start, int stopat,
 {
 	if (!need) { 
 		BUG_ON(stopat - start != 1);
-		*sout = sg[start]; 
 		sout->dma_length = sg[start].length; 
 		return 0;
 	} 
diff --git a/arch/x86_64/kernel/time.c b/arch/x86_64/kernel/time.c
index dba7237be5c1..67841d11ed1f 100644
--- a/arch/x86_64/kernel/time.c
+++ b/arch/x86_64/kernel/time.c
@@ -59,7 +59,7 @@ static int notsc __initdata = 0;
 unsigned int cpu_khz;					/* TSC clocks / usec, not used here */
 static unsigned long hpet_period;			/* fsecs / HPET clock */
 unsigned long hpet_tick;				/* HPET clocks / interrupt */
-static int hpet_use_timer;				/* Use counter of hpet for time keeping, otherwise PIT */
+int hpet_use_timer;				/* Use counter of hpet for time keeping, otherwise PIT */
 unsigned long vxtime_hz = PIT_TICK_RATE;
 int report_lost_ticks;				/* command line option */
 unsigned long long monotonic_base;
@@ -326,7 +326,10 @@ static noinline void handle_lost_ticks(int lost, struct pt_regs *regs)
 	    print_symbol("rip %s\n", regs->rip);
 	    if (vxtime.mode == VXTIME_TSC && vxtime.hpet_address) {
 		    printk(KERN_WARNING "Falling back to HPET\n");
-		    vxtime.last = hpet_readl(HPET_T0_CMP) - hpet_tick;
+		    if (hpet_use_timer)
+		    	vxtime.last = hpet_readl(HPET_T0_CMP) - hpet_tick;
+		    else
+		    	vxtime.last = hpet_readl(HPET_COUNTER);
 		    vxtime.mode = VXTIME_HPET;
 		    do_gettimeoffset = do_gettimeoffset_hpet;
 	    }
@@ -988,7 +991,10 @@ void __init time_init_gtod(void)
 		notsc = 1;
 	if (vxtime.hpet_address && notsc) {
 		timetype = hpet_use_timer ? "HPET" : "PIT/HPET";
-		vxtime.last = hpet_readl(HPET_T0_CMP) - hpet_tick;
+		if (hpet_use_timer)
+			vxtime.last = hpet_readl(HPET_T0_CMP) - hpet_tick;
+		else
+			vxtime.last = hpet_readl(HPET_COUNTER);
 		vxtime.mode = VXTIME_HPET;
 		do_gettimeoffset = do_gettimeoffset_hpet;
 #ifdef CONFIG_X86_PM_TIMER
@@ -1321,8 +1327,7 @@ static int __init nohpet_setup(char *s)
 
 __setup("nohpet", nohpet_setup);
 
-
-static int __init notsc_setup(char *s)
+int __init notsc_setup(char *s)
 {
 	notsc = 1;
 	return 0;
diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c
index ee1b2da9e5e7..28d50dc540e8 100644
--- a/arch/x86_64/kernel/traps.c
+++ b/arch/x86_64/kernel/traps.c
@@ -90,6 +90,20 @@ static inline void conditional_sti(struct pt_regs *regs)
 		local_irq_enable();
 }
 
+static inline void preempt_conditional_sti(struct pt_regs *regs)
+{
+	preempt_disable();
+	if (regs->eflags & X86_EFLAGS_IF)
+		local_irq_enable();
+}
+
+static inline void preempt_conditional_cli(struct pt_regs *regs)
+{
+	if (regs->eflags & X86_EFLAGS_IF)
+		local_irq_disable();
+	preempt_enable_no_resched();
+}
+
 static int kstack_depth_to_print = 10;
 
 #ifdef CONFIG_KALLSYMS
@@ -693,7 +707,7 @@ asmlinkage void __kprobes do_debug(struct pt_regs * regs,
 						SIGTRAP) == NOTIFY_STOP)
 		return;
 
-	conditional_sti(regs);
+	preempt_conditional_sti(regs);
 
 	/* Mask out spurious debug traps due to lazy DR7 setting */
 	if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3)) {
@@ -738,11 +752,13 @@ asmlinkage void __kprobes do_debug(struct pt_regs * regs,
 
 clear_dr7:
 	set_debugreg(0UL, 7);
+	preempt_conditional_cli(regs);
 	return;
 
 clear_TF_reenable:
 	set_tsk_thread_flag(tsk, TIF_SINGLESTEP);
 	regs->eflags &= ~TF_MASK;
+	preempt_conditional_cli(regs);
 }
 
 static int kernel_math_error(struct pt_regs *regs, const char *str, int trapnr)
diff --git a/arch/x86_64/mm/k8topology.c b/arch/x86_64/mm/k8topology.c
index a5663e0bb01c..dd60e71fdba6 100644
--- a/arch/x86_64/mm/k8topology.c
+++ b/arch/x86_64/mm/k8topology.c
@@ -155,7 +155,7 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end)
 	if (!found)
 		return -1; 
 
-	memnode_shift = compute_hash_shift(nodes, numnodes);
+	memnode_shift = compute_hash_shift(nodes, 8);
 	if (memnode_shift < 0) { 
 		printk(KERN_ERR "No NUMA node hash function found. Contact maintainer\n"); 
 		return -1; 
diff --git a/arch/x86_64/mm/numa.c b/arch/x86_64/mm/numa.c
index 6ef9f9a76235..22e51beee8d3 100644
--- a/arch/x86_64/mm/numa.c
+++ b/arch/x86_64/mm/numa.c
@@ -351,7 +351,7 @@ void __init init_cpu_to_node(void)
 			continue;
 		if (apicid_to_node[apicid] == NUMA_NO_NODE)
 			continue;
- 		cpu_to_node[i] = apicid_to_node[apicid];
+		numa_set_node(i,apicid_to_node[apicid]);
 	}
 }
 
diff --git a/arch/x86_64/mm/srat.c b/arch/x86_64/mm/srat.c
index cd25300726fc..482c25767369 100644
--- a/arch/x86_64/mm/srat.c
+++ b/arch/x86_64/mm/srat.c
@@ -228,7 +228,8 @@ static int nodes_cover_memory(void)
 	}
 
 	e820ram = end_pfn - e820_hole_size(0, end_pfn);
-	if (pxmram < e820ram) {
+	/* We seem to lose 3 pages somewhere. Allow a bit of slack. */
+	if ((long)(e820ram - pxmram) >= 1*1024*1024) {
 		printk(KERN_ERR
 	"SRAT: PXMs only cover %luMB of your %luMB e820 RAM. Not used.\n",
 			(pxmram << PAGE_SHIFT) >> 20,
@@ -270,7 +271,7 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
 		return -1;
 	}
 
-	memnode_shift = compute_hash_shift(nodes, nodes_weight(nodes_parsed));
+	memnode_shift = compute_hash_shift(nodes, MAX_NUMNODES);
 	if (memnode_shift < 0) {
 		printk(KERN_ERR
 		     "SRAT: No NUMA node hash function found. Contact maintainer\n");