Merge branch 'linus' into tracing/blktrace

Conflicts:
	block/blktrace.c

Semantic merge:
	kernel/trace/blktrace.c

Signed-off-by: Ingo Molnar <mingo@elte.hu>

CREDITS

@@ -2166,7 +2166,6 @@ D: Initial implementation of VC's, pty's and select()
 
 N: Pavel Machek
 E: pavel@ucw.cz
-E: pavel@suse.cz
 D: Softcursor for vga, hypertech cdrom support, vcsa bugfix, nbd
 D: sun4/330 port, capabilities for elf, speedup for rm on ext2, USB,
 D: work on suspend-to-ram/disk, killing duplicates from ioctl32

Documentation/ABI/testing/sysfs-firmware-memmap

@@ -1,6 +1,6 @@
 What:		/sys/firmware/memmap/
 Date:		June 2008
-Contact:	Bernhard Walle <bwalle@suse.de>
+Contact:	Bernhard Walle <bernhard.walle@gmx.de>
 Description:
 		On all platforms, the firmware provides a memory map which the
 		kernel reads. The resources from that memory map are registered

Documentation/PCI/PCIEBUS-HOWTO.txt

@@ -93,7 +93,7 @@ the PCI Express Port Bus driver from loading a service driver.
 
 int pcie_port_service_register(struct pcie_port_service_driver *new)
 
-This API replaces the Linux Driver Model's pci_module_init API. A
+This API replaces the Linux Driver Model's pci_register_driver API. A
 service driver should always calls pcie_port_service_register at
 module init. Note that after service driver being loaded, calls
 such as pci_enable_device(dev) and pci_set_master(dev) are no longer

Documentation/cgroups/cgroups.txt

@@ -252,10 +252,8 @@ cgroup file system directories.
 When a task is moved from one cgroup to another, it gets a new
 css_set pointer - if there's an already existing css_set with the
 desired collection of cgroups then that group is reused, else a new
-css_set is allocated. Note that the current implementation uses a
-linear search to locate an appropriate existing css_set, so isn't
-very efficient. A future version will use a hash table for better
-performance.
+css_set is allocated. The appropriate existing css_set is located by
+looking into a hash table.
 
 To allow access from a cgroup to the css_sets (and hence tasks)
 that comprise it, a set of cg_cgroup_link objects form a lattice;

Documentation/hwmon/hpfall.c

@@ -0,0 +1,101 @@
+/* Disk protection for HP machines.
+ *
+ * Copyright 2008 Eric Piel
+ * Copyright 2009 Pavel Machek <pavel@suse.cz>
+ *
+ * GPLv2.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <string.h>
+#include <stdint.h>
+#include <errno.h>
+#include <signal.h>
+
+void write_int(char *path, int i)
+{
+	char buf[1024];
+	int fd = open(path, O_RDWR);
+	if (fd < 0) {
+		perror("open");
+		exit(1);
+	}
+	sprintf(buf, "%d", i);
+	if (write(fd, buf, strlen(buf)) != strlen(buf)) {
+		perror("write");
+		exit(1);
+	}
+	close(fd);
+}
+
+void set_led(int on)
+{
+	write_int("/sys/class/leds/hp::hddprotect/brightness", on);
+}
+
+void protect(int seconds)
+{
+	write_int("/sys/block/sda/device/unload_heads", seconds*1000);
+}
+
+int on_ac(void)
+{
+//	/sys/class/power_supply/AC0/online
+}
+
+int lid_open(void)
+{
+//	/proc/acpi/button/lid/LID/state
+}
+
+void ignore_me(void)
+{
+	protect(0);
+	set_led(0);
+
+}
+
+int main(int argc, char* argv[])
+{
+       int fd, ret;
+
+       fd = open("/dev/freefall", O_RDONLY);
+       if (fd < 0) {
+               perror("open");
+               return EXIT_FAILURE;
+       }
+
+	signal(SIGALRM, ignore_me);
+
+       for (;;) {
+	       unsigned char count;
+
+               ret = read(fd, &count, sizeof(count));
+	       alarm(0);
+	       if ((ret == -1) && (errno == EINTR)) {
+		       /* Alarm expired, time to unpark the heads */
+		       continue;
+	       }
+
+               if (ret != sizeof(count)) {
+                       perror("read");
+                       break;
+               }
+
+	       protect(21);
+	       set_led(1);
+	       if (1 || on_ac() || lid_open()) {
+		       alarm(2);
+	       } else {
+		       alarm(20);
+	       }
+       }
+
+       close(fd);
+       return EXIT_SUCCESS;
+}

Documentation/hwmon/lis3lv02d

@@ -33,6 +33,14 @@ rate - reports the sampling rate of the accelerometer device in HZ
 This driver also provides an absolute input class device, allowing
 the laptop to act as a pinball machine-esque joystick.
 
+Another feature of the driver is misc device called "freefall" that
+acts similar to /dev/rtc and reacts on free-fall interrupts received
+from the device. It supports blocking operations, poll/select and
+fasync operation modes. You must read 1 bytes from the device.  The
+result is number of free-fall interrupts since the last successful
+read (or 255 if number of interrupts would not fit).
+
+
 Axes orientation
 ----------------
 

MAINTAINERS

@@ -1905,10 +1905,10 @@ W:	http://gigaset307x.sourceforge.net/
 S:	Maintained
 
 HARD DRIVE ACTIVE PROTECTION SYSTEM (HDAPS) DRIVER
-P:	Robert Love
-M:	rlove@rlove.org
-M:	linux-kernel@vger.kernel.org
-W:	http://www.kernel.org/pub/linux/kernel/people/rml/hdaps/
+P:	Frank Seidel
+M:	frank@f-seidel.de
+L:	lm-sensors@lm-sensors.org
+W:	http://www.kernel.org/pub/linux/kernel/people/fseidel/hdaps/
 S:	Maintained
 
 GSPCA FINEPIX SUBDRIVER
@@ -2001,7 +2001,7 @@ S:	Maintained
 
 HIBERNATION (aka Software Suspend, aka swsusp)
 P:	Pavel Machek
-M:	pavel@suse.cz
+M:	pavel@ucw.cz
 P:	Rafael J. Wysocki
 M:	rjw@sisk.pl
 L:	linux-pm@lists.linux-foundation.org
@@ -4178,7 +4178,7 @@ SUSPEND TO RAM
 P:	Len Brown
 M:	len.brown@intel.com
 P:	Pavel Machek
-M:	pavel@suse.cz
+M:	pavel@ucw.cz
 P:	Rafael J. Wysocki
 M:	rjw@sisk.pl
 L:	linux-pm@lists.linux-foundation.org
@@ -4930,11 +4930,11 @@ L:	zd1211-devs@lists.sourceforge.net (subscribers-only)
 S:	Maintained
 
 ZR36067 VIDEO FOR LINUX DRIVER
-P:	Ronald Bultje
-M:	rbultje@ronald.bitfreak.net
 L:	mjpeg-users@lists.sourceforge.net
+L:	linux-media@vger.kernel.org
 W:	http://mjpeg.sourceforge.net/driver-zoran/
-S:	Maintained
+T:	Mercurial http://linuxtv.org/hg/v4l-dvb
+S:	Odd Fixes
 
 ZS DECSTATION Z85C30 SERIAL DRIVER
 P:	Maciej W. Rozycki

Makefile

@@ -389,6 +389,7 @@ PHONY += outputmakefile
 # output directory.
 outputmakefile:
 ifneq ($(KBUILD_SRC),)
+	$(Q)ln -fsn $(srctree) source
 	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
 	    $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
 endif
@@ -946,7 +947,6 @@ ifneq ($(KBUILD_SRC),)
 	    mkdir -p include2;                                          \
 	    ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm;     \
 	fi
-	ln -fsn $(srctree) source
 endif
 
 # prepare2 creates a makefile if using a separate output directory

arch/alpha/kernel/process.c

@@ -93,8 +93,8 @@ common_shutdown_1(void *generic_ptr)
 	if (cpuid != boot_cpuid) {
 		flags |= 0x00040000UL; /* "remain halted" */
 		*pflags = flags;
-		cpu_clear(cpuid, cpu_present_map);
-		cpu_clear(cpuid, cpu_possible_map);
+		set_cpu_present(cpuid, false);
+		set_cpu_possible(cpuid, false);
 		halt();
 	}
 #endif
@@ -120,8 +120,8 @@ common_shutdown_1(void *generic_ptr)
 
 #ifdef CONFIG_SMP
 	/* Wait for the secondaries to halt. */
-	cpu_clear(boot_cpuid, cpu_present_map);
-	cpu_clear(boot_cpuid, cpu_possible_map);
+	set_cpu_present(boot_cpuid, false);
+	set_cpu_possible(boot_cpuid, false);
 	while (cpus_weight(cpu_present_map))
 		barrier();
 #endif

arch/alpha/kernel/smp.c

@@ -120,12 +120,12 @@ void __cpuinit
 smp_callin(void)
 {
 	int cpuid = hard_smp_processor_id();
-	cpumask_t mask = cpu_online_map;
 
-	if (cpu_test_and_set(cpuid, mask)) {
+	if (cpu_online(cpuid)) {
 		printk("??, cpu 0x%x already present??\n", cpuid);
 		BUG();
 	}
+	set_cpu_online(cpuid, true);
 
 	/* Turn on machine checks.  */
 	wrmces(7);
@@ -436,8 +436,8 @@ setup_smp(void)
 				((char *)cpubase + i*hwrpb->processor_size);
 			if ((cpu->flags & 0x1cc) == 0x1cc) {
 				smp_num_probed++;
-				cpu_set(i, cpu_possible_map);
-				cpu_set(i, cpu_present_map);
+				set_cpu_possible(i, true);
+				set_cpu_present(i, true);
 				cpu->pal_revision = boot_cpu_palrev;
 			}
 
@@ -470,8 +470,8 @@ smp_prepare_cpus(unsigned int max_cpus)
 
 	/* Nothing to do on a UP box, or when told not to.  */
 	if (smp_num_probed == 1 || max_cpus == 0) {
-		cpu_possible_map = cpumask_of_cpu(boot_cpuid);
-		cpu_present_map = cpumask_of_cpu(boot_cpuid);
+		init_cpu_possible(cpumask_of(boot_cpuid));
+		init_cpu_present(cpumask_of(boot_cpuid));
 		printk(KERN_INFO "SMP mode deactivated.\n");
 		return;
 	}

arch/ia64/include/asm/kvm.h

@@ -25,6 +25,10 @@
 
 #include <linux/ioctl.h>
 
+/* Select x86 specific features in <linux/kvm.h> */
+#define __KVM_HAVE_IOAPIC
+#define __KVM_HAVE_DEVICE_ASSIGNMENT
+
 /* Architectural interrupt line count. */
 #define KVM_NR_INTERRUPTS 256
 

arch/ia64/include/asm/mmzone.h

@@ -31,10 +31,6 @@ static inline int pfn_to_nid(unsigned long pfn)
 #endif
 }
 
-#ifdef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID
-extern int early_pfn_to_nid(unsigned long pfn);
-#endif
-
 #ifdef CONFIG_IA64_DIG /* DIG systems are small */
 # define MAX_PHYSNODE_ID	8
 # define NR_NODE_MEMBLKS	(MAX_NUMNODES * 8)

arch/ia64/kvm/kvm-ia64.c

@@ -1337,6 +1337,10 @@ static void kvm_release_vm_pages(struct kvm *kvm)
 	}
 }
 
+void kvm_arch_sync_events(struct kvm *kvm)
+{
+}
+
 void kvm_arch_destroy_vm(struct kvm *kvm)
 {
 	kvm_iommu_unmap_guest(kvm);

arch/ia64/kvm/process.c

@@ -455,13 +455,18 @@ fpswa_ret_t vmm_fp_emulate(int fp_fault, void *bundle, unsigned long *ipsr,
 	if (!vmm_fpswa_interface)
 		return (fpswa_ret_t) {-1, 0, 0, 0};
 
-	/*
-	 * Just let fpswa driver to use hardware fp registers.
-	 * No fp register is valid in memory.
-	 */
 	memset(&fp_state, 0, sizeof(fp_state_t));
 
 	/*
+	 * compute fp_state.  only FP registers f6 - f11 are used by the
+	 * vmm, so set those bits in the mask and set the low volatile
+	 * pointer to point to these registers.
+	 */
+	fp_state.bitmask_low64 = 0xfc0;  /* bit6..bit11 */
+
+	fp_state.fp_state_low_volatile = (fp_state_low_volatile_t *) &regs->f6;
+
+   /*
 	 * unsigned long (*EFI_FPSWA) (
 	 *      unsigned long    trap_type,
 	 *      void             *Bundle,
@@ -545,10 +550,6 @@ void reflect_interruption(u64 ifa, u64 isr, u64 iim,
 		status = vmm_handle_fpu_swa(0, regs, isr);
 		if (!status)
 			return ;
-		else if (-EAGAIN == status) {
-			vcpu_decrement_iip(vcpu);
-			return ;
-		}
 		break;
 	}
 

arch/ia64/mm/numa.c

@@ -58,7 +58,7 @@ paddr_to_nid(unsigned long paddr)
  * SPARSEMEM to allocate the SPARSEMEM sectionmap on the NUMA node where
  * the section resides.
  */
-int early_pfn_to_nid(unsigned long pfn)
+int __meminit __early_pfn_to_nid(unsigned long pfn)
 {
 	int i, section = pfn >> PFN_SECTION_SHIFT, ssec, esec;
 
@@ -70,7 +70,7 @@ int early_pfn_to_nid(unsigned long pfn)
 			return node_memblk[i].nid;
 	}
 
-	return 0;
+	return -1;
 }
 
 #ifdef CONFIG_MEMORY_HOTPLUG

arch/powerpc/include/asm/pgtable-4k.h

@@ -60,7 +60,7 @@
 /* It should be preserving the high 48 bits and then specifically */
 /* preserving _PAGE_SECONDARY | _PAGE_GROUP_IX */
 #define _PAGE_CHG_MASK	(PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY | \
-                         _PAGE_HPTEFLAGS)
+                         _PAGE_HPTEFLAGS | _PAGE_SPECIAL)
 
 /* Bits to mask out from a PMD to get to the PTE page */
 #define PMD_MASKED_BITS		0

arch/powerpc/include/asm/pgtable-64k.h

@@ -114,7 +114,7 @@ static inline struct subpage_prot_table *pgd_subpage_prot(pgd_t *pgd)
  * pgprot changes
  */
 #define _PAGE_CHG_MASK	(PTE_RPN_MASK | _PAGE_HPTEFLAGS | _PAGE_DIRTY | \
-                         _PAGE_ACCESSED)
+                         _PAGE_ACCESSED | _PAGE_SPECIAL)
 
 /* Bits to mask out from a PMD to get to the PTE page */
 #define PMD_MASKED_BITS		0x1ff

arch/powerpc/include/asm/pgtable-ppc32.h

@@ -429,7 +429,8 @@ extern int icache_44x_need_flush;
 #define PMD_PAGE_SIZE(pmd)	bad_call_to_PMD_PAGE_SIZE()
 #endif
 
-#define _PAGE_CHG_MASK	(PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
+#define _PAGE_CHG_MASK	(PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY | \
+			 _PAGE_SPECIAL)
 
 
 #define PAGE_PROT_BITS	(_PAGE_GUARDED | _PAGE_COHERENT | _PAGE_NO_CACHE | \