Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6

* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6:
  [PATCH] x86-64: Revert timer routing behaviour back to 2.6.16 state
  [PATCH] x86-64: Overlapping program headers in physical addr space fix
  [PATCH] x86-64: Put more than one cpu in TARGET_CPUS
  [PATCH] x86: Revert new unwind kernel stack termination
  [PATCH] x86-64: Use irq_domain in ioapic_retrigger_irq
  [PATCH] i386: Disable nmi watchdog on all ThinkPads
  [PATCH] x86-64: Revert interrupt backlink changes
  [PATCH] x86-64: Fix ENOSYS in system call tracing
  [PATCH] i386: Fix fake return address
  [PATCH] x86-64: x86_64 add NX mask for PTE entry
  [PATCH] x86-64: Speed up dwarf2 unwinder
  [PATCH] x86: Use -maccumulate-outgoing-args
  [PATCH] x86-64: fix page align in e820 allocator
  [PATCH] x86-64: Fix for arch/x86_64/pci/Makefile CFLAGS
  [PATCH] i386: fix .cfi_signal_frame copy-n-paste error
  [PATCH] x86-64: typo in __assign_irq_vector when updating pos for vector and offset
  [PATCH] x86-64: x86_64 hot-add memory srat.c fix
  [PATCH] i386: Update defconfig
  [PATCH] x86-64: Update defconfig

15 files changed, 76 insertions, 73 deletions

diff --git a/arch/i386/Makefile b/arch/i386/Makefile
index 7cc0b189b82b..0677908dfa06 100644
--- a/arch/i386/Makefile
+++ b/arch/i386/Makefile
@@ -42,6 +42,10 @@ cflags-$(CONFIG_REGPARM) += -mregparm=3
 # temporary until string.h is fixed
 cflags-y += -ffreestanding
 
+# this works around some issues with generating unwind tables in older gccs
+# newer gccs do it by default
+cflags-y += -maccumulate-outgoing-args
+
 # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
 # a lot more stack due to the lack of sharing of stacklots:
 CFLAGS				+= $(shell if [ $(call cc-version) -lt 0400 ] ; then echo $(call cc-option,-fno-unit-at-a-time); fi ;)
@@ -51,8 +55,8 @@ cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
 AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
 
 # is .cfi_signal_frame supported too?
-cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
-AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
+cflags-y += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
+AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
 
 CFLAGS += $(cflags-y)
 
diff --git a/arch/i386/defconfig b/arch/i386/defconfig
index 60c0c02574f0..97aacd6bd7d8 100644
--- a/arch/i386/defconfig
+++ b/arch/i386/defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.19-rc1
-# Thu Oct  5 13:04:53 2006
+# Linux kernel version: 2.6.19-rc2-git4
+# Sat Oct 21 03:38:56 2006
 #
 CONFIG_X86_32=y
 CONFIG_GENERIC_TIME=y
@@ -380,8 +380,8 @@ CONFIG_INET6_XFRM_MODE_TRANSPORT=y
 CONFIG_INET6_XFRM_MODE_TUNNEL=y
 # CONFIG_INET6_XFRM_MODE_BEET is not set
 # CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
+CONFIG_IPV6_SIT=y
 # CONFIG_IPV6_TUNNEL is not set
-# CONFIG_IPV6_SUBTREES is not set
 # CONFIG_IPV6_MULTIPLE_TABLES is not set
 # CONFIG_NETWORK_SECMARK is not set
 # CONFIG_NETFILTER is not set
@@ -483,6 +483,13 @@ CONFIG_BLK_DEV_INITRD=y
 # CONFIG_ATA_OVER_ETH is not set
 
 #
+# Misc devices
+#
+# CONFIG_IBM_ASM is not set
+# CONFIG_SGI_IOC4 is not set
+# CONFIG_TIFM_CORE is not set
+
+#
 # ATA/ATAPI/MFM/RLL support
 #
 CONFIG_IDE=y
@@ -1024,6 +1031,7 @@ CONFIG_HANGCHECK_TIMER=y
 #
 # Dallas's 1-wire bus
 #
+# CONFIG_W1 is not set
 
 #
 # Hardware Monitoring support
@@ -1032,12 +1040,6 @@ CONFIG_HANGCHECK_TIMER=y
 # CONFIG_HWMON_VID is not set
 
 #
-# Misc devices
-#
-# CONFIG_IBM_ASM is not set
-# CONFIG_TIFM_CORE is not set
-
-#
 # Multimedia devices
 #
 # CONFIG_VIDEO_DEV is not set
@@ -1169,7 +1171,6 @@ CONFIG_USB_HIDINPUT=y
 # CONFIG_USB_ATI_REMOTE2 is not set
 # CONFIG_USB_KEYSPAN_REMOTE is not set
 # CONFIG_USB_APPLETOUCH is not set
-# CONFIG_USB_TRANCEVIBRATOR is not set
 
 #
 # USB Imaging devices
@@ -1215,6 +1216,7 @@ CONFIG_USB_MON=y
 # CONFIG_USB_APPLEDISPLAY is not set
 # CONFIG_USB_SISUSBVGA is not set
 # CONFIG_USB_LD is not set
+# CONFIG_USB_TRANCEVIBRATOR is not set
 # CONFIG_USB_TEST is not set
 
 #
@@ -1284,6 +1286,7 @@ CONFIG_EXT3_FS=y
 CONFIG_EXT3_FS_XATTR=y
 CONFIG_EXT3_FS_POSIX_ACL=y
 # CONFIG_EXT3_FS_SECURITY is not set
+# CONFIG_EXT4DEV_FS is not set
 CONFIG_JBD=y
 # CONFIG_JBD_DEBUG is not set
 CONFIG_FS_MBCACHE=y
@@ -1307,6 +1310,7 @@ CONFIG_DNOTIFY=y
 # CONFIG_AUTOFS_FS is not set
 CONFIG_AUTOFS4_FS=y
 # CONFIG_FUSE_FS is not set
+CONFIG_GENERIC_ACL=y
 
 #
 # CD-ROM/DVD Filesystems
@@ -1384,7 +1388,6 @@ CONFIG_SUNRPC=y
 # CONFIG_CODA_FS is not set
 # CONFIG_AFS_FS is not set
 # CONFIG_9P_FS is not set
-CONFIG_GENERIC_ACL=y
 
 #
 # Partition Types
@@ -1437,10 +1440,6 @@ CONFIG_NLS_ISO8859_15=y
 CONFIG_NLS_UTF8=y
 
 #
-# Distributed Lock Manager
-#
-
-#
 # Instrumentation Support
 #
 CONFIG_PROFILING=y
@@ -1480,6 +1479,7 @@ CONFIG_DEBUG_BUGVERBOSE=y
 CONFIG_UNWIND_INFO=y
 CONFIG_STACK_UNWIND=y
 # CONFIG_FORCED_INLINING is not set
+# CONFIG_HEADERS_CHECK is not set
 # CONFIG_RCU_TORTURE_TEST is not set
 # CONFIG_LKDTM is not set
 CONFIG_EARLY_PRINTK=y
diff --git a/arch/i386/kernel/head.S b/arch/i386/kernel/head.S
index be9d883c62ce..ca31f18d277c 100644
--- a/arch/i386/kernel/head.S
+++ b/arch/i386/kernel/head.S
@@ -317,7 +317,7 @@ is386:	movl $2,%ecx		# set MP
 	movl %eax,%gs
 	lldt %ax
 	cld			# gcc2 wants the direction flag cleared at all times
-	pushl %eax		# fake return address
+	pushl $0		# fake return address for unwinder
 #ifdef CONFIG_SMP
 	movb ready, %cl
 	movb $1, ready
diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c
index 3e8e3adb0489..eaafe233a5da 100644
--- a/arch/i386/kernel/nmi.c
+++ b/arch/i386/kernel/nmi.c
@@ -219,11 +219,11 @@ static int __init check_nmi_watchdog(void)
 	int cpu;
 
 	/* Enable NMI watchdog for newer systems.
-           Actually it should be safe for most systems before 2004 too except
-	   for some IBM systems that corrupt registers when NMI happens
-	   during SMM. Unfortunately we don't have more exact information
- 	   on these and use this coarse check. */
-	if (nmi_watchdog == NMI_DEFAULT && dmi_get_year(DMI_BIOS_DATE) >= 2004)
+	   Probably safe on most older systems too, but let's be careful.
+	   IBM ThinkPads use INT10 inside SMM and that allows early NMI inside SMM
+	   which hangs the system. Disable watchdog for all thinkpads */
+	if (nmi_watchdog == NMI_DEFAULT && dmi_get_year(DMI_BIOS_DATE) >= 2004 &&
+		!dmi_name_in_vendors("ThinkPad"))
 		nmi_watchdog = NMI_LOCAL_APIC;
 
 	if ((nmi_watchdog == NMI_NONE) || (nmi_watchdog == NMI_DEFAULT))
diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c
index 57d375900afb..1e1fa3e391a3 100644
--- a/arch/i386/kernel/process.c
+++ b/arch/i386/kernel/process.c
@@ -336,7 +336,6 @@ extern void kernel_thread_helper(void);
 int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
 {
 	struct pt_regs regs;
-	int err;
 
 	memset(&regs, 0, sizeof(regs));
 
@@ -351,10 +350,7 @@ int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
 	regs.eflags = X86_EFLAGS_IF | X86_EFLAGS_SF | X86_EFLAGS_PF | 0x2;
 
 	/* Ok, create the new process.. */
-	err = do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, &regs, 0, NULL, NULL);
-	if (err == 0) /* terminate kernel stack */
-		task_pt_regs(current)->eip = 0;
-	return err;
+	return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, &regs, 0, NULL, NULL);
 }
 EXPORT_SYMBOL(kernel_thread);
 
diff --git a/arch/x86_64/Makefile b/arch/x86_64/Makefile
index 1c0f18d4f887..13972148058d 100644
--- a/arch/x86_64/Makefile
+++ b/arch/x86_64/Makefile
@@ -54,6 +54,10 @@ endif
 cflags-y += $(call cc-option,-funit-at-a-time)
 # prevent gcc from generating any FP code by mistake
 cflags-y += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,)
+# this works around some issues with generating unwind tables in older gccs
+# newer gccs do it by default
+cflags-y += -maccumulate-outgoing-args
+
 # do binutils support CFI?
 cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
 AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
diff --git a/arch/x86_64/defconfig b/arch/x86_64/defconfig
index 47bfba6e9dc4..0f5d44e86be5 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: 2.6.19-rc1
-# Thu Oct  5 13:04:43 2006
+# Linux kernel version: 2.6.19-rc2-git4
+# Sat Oct 21 03:38:52 2006
 #
 CONFIG_X86_64=y
 CONFIG_64BIT=y
@@ -335,8 +335,8 @@ CONFIG_IPV6=y
 # CONFIG_INET6_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET6_XFRM_MODE_BEET is not set
 # CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
+CONFIG_IPV6_SIT=y
 # CONFIG_IPV6_TUNNEL is not set
-# CONFIG_IPV6_SUBTREES is not set
 # CONFIG_IPV6_MULTIPLE_TABLES is not set
 # CONFIG_NETWORK_SECMARK is not set
 # CONFIG_NETFILTER is not set
@@ -438,6 +438,13 @@ CONFIG_BLK_DEV_INITRD=y
 # CONFIG_ATA_OVER_ETH is not set
 
 #
+# Misc devices
+#
+# CONFIG_IBM_ASM is not set
+# CONFIG_SGI_IOC4 is not set
+# CONFIG_TIFM_CORE is not set
+
+#
 # ATA/ATAPI/MFM/RLL support
 #
 CONFIG_IDE=y
@@ -1008,6 +1015,7 @@ CONFIG_I2C_ISA=m
 #
 # Dallas's 1-wire bus
 #
+# CONFIG_W1 is not set
 
 #
 # Hardware Monitoring support
@@ -1059,12 +1067,6 @@ CONFIG_SENSORS_SMSC47B397=m
 # CONFIG_HWMON_DEBUG_CHIP is not set
 
 #
-# Misc devices
-#
-# CONFIG_IBM_ASM is not set
-# CONFIG_TIFM_CORE is not set
-
-#
 # Multimedia devices
 #
 # CONFIG_VIDEO_DEV is not set
@@ -1196,7 +1198,6 @@ CONFIG_USB_HIDINPUT=y
 # CONFIG_USB_ATI_REMOTE2 is not set
 # CONFIG_USB_KEYSPAN_REMOTE is not set
 # CONFIG_USB_APPLETOUCH is not set
-# CONFIG_USB_TRANCEVIBRATOR is not set
 
 #
 # USB Imaging devices
@@ -1242,6 +1243,7 @@ CONFIG_USB_MON=y
 # CONFIG_USB_APPLEDISPLAY is not set
 # CONFIG_USB_SISUSBVGA is not set
 # CONFIG_USB_LD is not set
+# CONFIG_USB_TRANCEVIBRATOR is not set
 # CONFIG_USB_TEST is not set
 
 #
@@ -1318,6 +1320,7 @@ CONFIG_EXT3_FS=y
 CONFIG_EXT3_FS_XATTR=y
 CONFIG_EXT3_FS_POSIX_ACL=y
 # CONFIG_EXT3_FS_SECURITY is not set
+# CONFIG_EXT4DEV_FS is not set
 CONFIG_JBD=y
 # CONFIG_JBD_DEBUG is not set
 CONFIG_FS_MBCACHE=y
@@ -1341,6 +1344,7 @@ CONFIG_DNOTIFY=y
 # CONFIG_AUTOFS_FS is not set
 CONFIG_AUTOFS4_FS=y
 # CONFIG_FUSE_FS is not set
+CONFIG_GENERIC_ACL=y
 
 #
 # CD-ROM/DVD Filesystems
@@ -1418,7 +1422,6 @@ CONFIG_SUNRPC=y
 # CONFIG_CODA_FS is not set
 # CONFIG_AFS_FS is not set
 # CONFIG_9P_FS is not set
-CONFIG_GENERIC_ACL=y
 
 #
 # Partition Types
@@ -1471,10 +1474,6 @@ CONFIG_NLS_ISO8859_15=y
 CONFIG_NLS_UTF8=y
 
 #
-# Distributed Lock Manager
-#
-
-#
 # Instrumentation Support
 #
 CONFIG_PROFILING=y
@@ -1512,6 +1511,7 @@ CONFIG_DEBUG_FS=y
 CONFIG_UNWIND_INFO=y
 CONFIG_STACK_UNWIND=y
 # CONFIG_FORCED_INLINING is not set
+# CONFIG_HEADERS_CHECK is not set
 # CONFIG_RCU_TORTURE_TEST is not set
 # CONFIG_LKDTM is not set
 # CONFIG_DEBUG_RODATA is not set
diff --git a/arch/x86_64/kernel/e820.c b/arch/x86_64/kernel/e820.c
index b3f0908668ec..a75c829c2b02 100644
--- a/arch/x86_64/kernel/e820.c
+++ b/arch/x86_64/kernel/e820.c
@@ -54,13 +54,13 @@ static inline int bad_addr(unsigned long *addrp, unsigned long size)
 
 	/* various gunk below that needed for SMP startup */
 	if (addr < 0x8000) { 
-		*addrp = 0x8000;
+		*addrp = PAGE_ALIGN(0x8000);
 		return 1; 
 	}
 
 	/* direct mapping tables of the kernel */
 	if (last >= table_start<<PAGE_SHIFT && addr < table_end<<PAGE_SHIFT) { 
-		*addrp = table_end << PAGE_SHIFT; 
+		*addrp = PAGE_ALIGN(table_end << PAGE_SHIFT);
 		return 1;
 	} 
 
@@ -68,18 +68,18 @@ static inline int bad_addr(unsigned long *addrp, unsigned long size)
 #ifdef CONFIG_BLK_DEV_INITRD
 	if (LOADER_TYPE && INITRD_START && last >= INITRD_START && 
 	    addr < INITRD_START+INITRD_SIZE) { 
-		*addrp = INITRD_START + INITRD_SIZE; 
+		*addrp = PAGE_ALIGN(INITRD_START + INITRD_SIZE);
 		return 1;
 	} 
 #endif
 	/* kernel code */
-	if (last >= __pa_symbol(&_text) && last < __pa_symbol(&_end)) {
-		*addrp = __pa_symbol(&_end);
+	if (last >= __pa_symbol(&_text) && addr < __pa_symbol(&_end)) {
+		*addrp = PAGE_ALIGN(__pa_symbol(&_end));
 		return 1;
 	}
 
 	if (last >= ebda_addr && addr < ebda_addr + ebda_size) {
-		*addrp = ebda_addr + ebda_size;
+		*addrp = PAGE_ALIGN(ebda_addr + ebda_size);
 		return 1;
 	}
 
@@ -152,7 +152,7 @@ unsigned long __init find_e820_area(unsigned long start, unsigned long end, unsi
 			continue; 
 		while (bad_addr(&addr, size) && addr+size <= ei->addr+ei->size)
 			;
-		last = addr + size;
+		last = PAGE_ALIGN(addr) + size;
 		if (last > ei->addr + ei->size)
 			continue;
 		if (last > end) 
diff --git a/arch/x86_64/kernel/early-quirks.c b/arch/x86_64/kernel/early-quirks.c
index 208e38a372c1..2b1245d86258 100644
--- a/arch/x86_64/kernel/early-quirks.c
+++ b/arch/x86_64/kernel/early-quirks.c
@@ -61,10 +61,11 @@ static void nvidia_bugs(void)
 
 static void ati_bugs(void)
 {
-#if 1 /* for testing */
-	printk("ATI board detected\n");
-#endif
-	/* No bugs right now */
+	if (timer_over_8254 == 1) {
+		timer_over_8254 = 0;
+		printk(KERN_INFO
+	 	"ATI board detected. Disabling timer routing over 8254.\n");
+	}
 }
 
 struct chipset {
diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S
index 38a7b2d528e2..7d401b00d822 100644
--- a/arch/x86_64/kernel/entry.S
+++ b/arch/x86_64/kernel/entry.S
@@ -315,6 +315,8 @@ tracesys:
 	LOAD_ARGS ARGOFFSET  /* reload args from stack in case ptrace changed it */
 	RESTORE_REST
 	cmpq $__NR_syscall_max,%rax
+	movq $-ENOSYS,%rcx
+	cmova %rcx,%rax
 	ja  1f
 	movq %r10,%rcx	/* fixup for C */
 	call *sys_call_table(,%rax,8)
@@ -535,8 +537,6 @@ END(stub_rt_sigreturn)
 1:	incl	%gs:pda_irqcount
 	cmoveq %gs:pda_irqstackptr,%rsp
 	push    %rbp			# backlink for old unwinder
-	CFI_ADJUST_CFA_OFFSET 8
-	CFI_REL_OFFSET rbp,0
 	/*
 	 * We entered an interrupt context - irqs are off:
 	 */
@@ -980,11 +980,6 @@ ENTRY(kernel_thread)
 	call do_fork
 	movq %rax,RAX(%rsp)
 	xorl %edi,%edi
-	test %rax,%rax
-	jnz  1f
-	/* terminate stack in child */
-	movq %rdi,RIP(%rsp)
-1:
 
 	/*
 	 * It isn't worth to check for reschedule here,
@@ -1176,7 +1171,6 @@ ENTRY(call_softirq)
 	incl %gs:pda_irqcount
 	cmove %gs:pda_irqstackptr,%rsp
 	push  %rbp			# backlink for old unwinder
-	CFI_ADJUST_CFA_OFFSET    8
 	call __do_softirq
 	leaveq
 	CFI_DEF_CFA_REGISTER	rsp
diff --git a/arch/x86_64/kernel/genapic_flat.c b/arch/x86_64/kernel/genapic_flat.c
index 0dfc223c1839..7c01db8fa9d1 100644
--- a/arch/x86_64/kernel/genapic_flat.c
+++ b/arch/x86_64/kernel/genapic_flat.c
@@ -153,7 +153,7 @@ struct genapic apic_flat =  {
 
 static cpumask_t physflat_target_cpus(void)
 {
-	return cpumask_of_cpu(0);
+	return cpu_online_map;
 }
 
 static cpumask_t physflat_vector_allocation_domain(int cpu)
diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c
index 49e94f7994c5..b000017e4b5d 100644
--- a/arch/x86_64/kernel/io_apic.c
+++ b/arch/x86_64/kernel/io_apic.c
@@ -57,7 +57,7 @@ static int no_timer_check;
 
 static int disable_timer_pin_1 __initdata;
 
-int timer_over_8254 __initdata = 0;
+int timer_over_8254 __initdata = 1;
 
 /* Where if anywhere is the i8259 connect in external int mode */
 static struct { int pin, apic; } ioapic_i8259 = { -1, -1 };
@@ -651,12 +651,12 @@ next:
 		if (vector == IA32_SYSCALL_VECTOR)
 			goto next;
 		for_each_cpu_mask(new_cpu, domain)
-			if (per_cpu(vector_irq, cpu)[vector] != -1)
+			if (per_cpu(vector_irq, new_cpu)[vector] != -1)
 				goto next;
 		/* Found one! */
 		for_each_cpu_mask(new_cpu, domain) {
-			pos[cpu].vector = vector;
-			pos[cpu].offset = offset;
+			pos[new_cpu].vector = vector;
+			pos[new_cpu].offset = offset;
 		}
 		if (old_vector >= 0) {
 			int old_cpu;
@@ -1255,12 +1255,15 @@ static int ioapic_retrigger_irq(unsigned int irq)
 {
 	cpumask_t mask;
 	unsigned vector;
+	unsigned long flags;
 
+	spin_lock_irqsave(&vector_lock, flags);
 	vector = irq_vector[irq];
 	cpus_clear(mask);
-	cpu_set(vector >> 8, mask);
+	cpu_set(first_cpu(irq_domain[irq]), mask);
 
-	send_IPI_mask(mask, vector & 0xff);
+	send_IPI_mask(mask, vector);
+	spin_unlock_irqrestore(&vector_lock, flags);
 
 	return 1;
 }
diff --git a/arch/x86_64/kernel/vmlinux.lds.S b/arch/x86_64/kernel/vmlinux.lds.S
index b9df2ab6529f..1283614c9b24 100644
--- a/arch/x86_64/kernel/vmlinux.lds.S
+++ b/arch/x86_64/kernel/vmlinux.lds.S
@@ -17,6 +17,7 @@ PHDRS {
 	text PT_LOAD FLAGS(5);	/* R_E */
 	data PT_LOAD FLAGS(7);	/* RWE */
 	user PT_LOAD FLAGS(7);	/* RWE */
+	data.init PT_LOAD FLAGS(7);	/* RWE */
 	note PT_NOTE FLAGS(4);	/* R__ */
 }
 SECTIONS
@@ -131,7 +132,7 @@ SECTIONS
   . = ALIGN(8192);		/* init_task */
   .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) {
 	*(.data.init_task)
-  } :data
+  }:data.init
 
   . = ALIGN(4096);
   .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
diff --git a/arch/x86_64/mm/srat.c b/arch/x86_64/mm/srat.c
index 3cc0544e25f5..1087e150a218 100644
--- a/arch/x86_64/mm/srat.c
+++ b/arch/x86_64/mm/srat.c
@@ -207,7 +207,7 @@ static inline int save_add_info(void)
 	return hotadd_percent > 0;
 }
 #else
-int update_end_of_memory(unsigned long end) {return 0;}
+int update_end_of_memory(unsigned long end) {return -1;}
 static int hotadd_enough_memory(struct bootnode *nd) {return 1;}
 #ifdef CONFIG_MEMORY_HOTPLUG_SPARSE
 static inline int save_add_info(void) {return 1;}
@@ -337,7 +337,7 @@ acpi_numa_memory_affinity_init(struct acpi_table_memory_affinity *ma)
 	push_node_boundaries(node, nd->start >> PAGE_SHIFT,
 						nd->end >> PAGE_SHIFT);
 
- 	if (ma->flags.hot_pluggable && !reserve_hotadd(node, start, end) < 0) {
+ 	if (ma->flags.hot_pluggable && (reserve_hotadd(node, start, end) < 0)) {
 		/* Ignore hotadd region. Undo damage */
 		printk(KERN_NOTICE "SRAT: Hotplug region ignored\n");
 		*nd = oldnode;
diff --git a/arch/x86_64/pci/Makefile b/arch/x86_64/pci/Makefile
index 1eb18f421edf..149aba05a5b8 100644
--- a/arch/x86_64/pci/Makefile
+++ b/arch/x86_64/pci/Makefile
@@ -3,7 +3,7 @@
 #
 # Reuse the i386 PCI subsystem
 #
-CFLAGS += -Iarch/i386/pci
+EXTRA_CFLAGS += -Iarch/i386/pci
 
 obj-y		:= i386.o
 obj-$(CONFIG_PCI_DIRECT)+= direct.o