Merge branch 'linus' into sched/core

Conflicts:
	fs/proc/array.c

Merge reason: resolve conflict and queue up dependent patch.

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

19 files changed, 39 insertions, 93 deletions

diff --git a/arch/um/Makefile b/arch/um/Makefile
index 0728def3223..fc633dbacf8 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -96,11 +96,10 @@ CFLAGS_NO_HARDENING := $(call cc-option, -fno-PIC,) $(call cc-option, -fno-pic,)
 	$(call cc-option, -fno-stack-protector,) \
 	$(call cc-option, -fno-stack-protector-all,)
 
-CONFIG_KERNEL_STACK_ORDER ?= 2
-STACK_SIZE := $(shell echo $$[ 4096 * (1 << $(CONFIG_KERNEL_STACK_ORDER)) ] )
-
-CPPFLAGS_vmlinux.lds = -U$(SUBARCH) -DSTART=$(START) -DELF_ARCH=$(ELF_ARCH) \
-	-DELF_FORMAT="$(ELF_FORMAT)" -DKERNEL_STACK_SIZE=$(STACK_SIZE)
+# Options used by linker script
+export LDS_START      := $(START)
+export LDS_ELF_ARCH   := $(ELF_ARCH)
+export LDS_ELF_FORMAT := $(ELF_FORMAT)
 
 # The wrappers will select whether using "malloc" or the kernel allocator.
 LINK_WRAPS = -Wl,--wrap,malloc -Wl,--wrap,free -Wl,--wrap,calloc
diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c
index 14a102e877d..cf8a97f3451 100644
--- a/arch/um/drivers/line.c
+++ b/arch/um/drivers/line.c
@@ -5,6 +5,7 @@
 
 #include "linux/irqreturn.h"
 #include "linux/kd.h"
+#include "linux/sched.h"
 #include "chan_kern.h"
 #include "irq_kern.h"
 #include "irq_user.h"
diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c
index f114813ae25..a74245ae3a8 100644
--- a/arch/um/drivers/net_kern.c
+++ b/arch/um/drivers/net_kern.c
@@ -533,7 +533,7 @@ static int eth_parse(char *str, int *index_out, char **str_out,
 		     char **error_out)
 {
 	char *end;
-	int n, err = -EINVAL;;
+	int n, err = -EINVAL;
 
 	n = simple_strtoul(str, &end, 0);
 	if (end == str) {
diff --git a/arch/um/drivers/port_kern.c b/arch/um/drivers/port_kern.c
index 19930081d3d..4ebc8a34738 100644
--- a/arch/um/drivers/port_kern.c
+++ b/arch/um/drivers/port_kern.c
@@ -7,6 +7,7 @@
 #include "linux/interrupt.h"
 #include "linux/list.h"
 #include "linux/mutex.h"
+#include "linux/workqueue.h"
 #include "asm/atomic.h"
 #include "init.h"
 #include "irq_kern.h"
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index 8f05d4d9da1..635d16d90a8 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -106,7 +106,7 @@ static int ubd_getgeo(struct block_device *bdev, struct hd_geometry *geo);
 
 #define MAX_DEV (16)
 
-static struct block_device_operations ubd_blops = {
+static const struct block_device_operations ubd_blops = {
         .owner		= THIS_MODULE,
         .open		= ubd_open,
         .release	= ubd_release,
diff --git a/arch/um/include/asm/common.lds.S b/arch/um/include/asm/common.lds.S
index 37ecc5577a9..ac55b9efa1c 100644
--- a/arch/um/include/asm/common.lds.S
+++ b/arch/um/include/asm/common.lds.S
@@ -16,11 +16,7 @@
 
   . = ALIGN(4096);
   .note : { *(.note.*) }
-  __ex_table : {
-	__start___ex_table = .;
-	*(__ex_table)
-	__stop___ex_table = .;
-  }
+  EXCEPTION_TABLE(0)
 
   BUG_TABLE
 
@@ -43,28 +39,17 @@
   }
 	
   .init.setup : {
-	__setup_start = .;
-	*(.init.setup)
-	__setup_end = .;
+	INIT_SETUP(0)
   }
 
-  . = ALIGN(32);
-  .data.percpu : {
-	__per_cpu_start = . ;
-	*(.data.percpu)
-	__per_cpu_end = . ;
-  }
+  PERCPU(32)
 	
   .initcall.init : {
-	__initcall_start = .;
-	INITCALLS
-	__initcall_end = .;
+	INIT_CALLS
   }
 
   .con_initcall.init : {
-	__con_initcall_start = .;
-	*(.con_initcall.init)
-	__con_initcall_end = .;
+	CON_INITCALL
   }
 
   .uml.initcall.init : {
@@ -118,8 +103,6 @@
 
    . = ALIGN(4096);
   .init.ramfs : {
-	__initramfs_start = .;
-	*(.init.ramfs)
-	__initramfs_end = .;
+	INIT_RAM_FS
   }
 
diff --git a/arch/um/include/asm/hardirq.h b/arch/um/include/asm/hardirq.h
index 313ebb8a256..fb3c05a0cbb 100644
--- a/arch/um/include/asm/hardirq.h
+++ b/arch/um/include/asm/hardirq.h
@@ -1,25 +1 @@
-/* (c) 2004 cw@f00f.org, GPLv2 blah blah */
-
-#ifndef __ASM_UM_HARDIRQ_H
-#define __ASM_UM_HARDIRQ_H
-
-#include <linux/threads.h>
-#include <linux/irq.h>
-
-/* NOTE: When SMP works again we might want to make this
- * ____cacheline_aligned or maybe use per_cpu state? --cw */
-typedef struct {
-	unsigned int __softirq_pending;
-} irq_cpustat_t;
-
-#include <linux/irq_cpustat.h>
-
-/* As this would be very strange for UML to get we BUG() after the
- * printk. */
-static inline void ack_bad_irq(unsigned int irq)
-{
-	printk(KERN_ERR "unexpected IRQ %02x\n", irq);
-	BUG();
-}
-
-#endif /* __ASM_UM_HARDIRQ_H */
+#include <asm-generic/hardirq.h>
diff --git a/arch/um/include/asm/mmu_context.h b/arch/um/include/asm/mmu_context.h
index 54f42e8b010..34d813011b7 100644
--- a/arch/um/include/asm/mmu_context.h
+++ b/arch/um/include/asm/mmu_context.h
@@ -35,8 +35,8 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
 	unsigned cpu = smp_processor_id();
 
 	if(prev != next){
-		cpu_clear(cpu, prev->cpu_vm_mask);
-		cpu_set(cpu, next->cpu_vm_mask);
+		cpumask_clear_cpu(cpu, mm_cpumask(prev));
+		cpumask_set_cpu(cpu, mm_cpumask(next));
 		if(next != &init_mm)
 			__switch_mm(&next->context.id);
 	}
diff --git a/arch/um/include/shared/ptrace_user.h b/arch/um/include/shared/ptrace_user.h
index 4bce6e01288..7fd8539bc19 100644
--- a/arch/um/include/shared/ptrace_user.h
+++ b/arch/um/include/shared/ptrace_user.h
@@ -29,7 +29,7 @@ extern int ptrace_setregs(long pid, unsigned long *regs_in);
  * recompilation. So, we use PTRACE_OLDSETOPTIONS in UML.
  * We also want to be able to build the kernel on 2.4, which doesn't
  * have PTRACE_OLDSETOPTIONS. So, if it is missing, we declare
- * PTRACE_OLDSETOPTIONS to to be the same as PTRACE_SETOPTIONS.
+ * PTRACE_OLDSETOPTIONS to be the same as PTRACE_SETOPTIONS.
  *
  * On architectures, that start to support PTRACE_O_TRACESYSGOOD on
  * linux 2.6, PTRACE_OLDSETOPTIONS never is defined, and also isn't
diff --git a/arch/um/kernel/Makefile b/arch/um/kernel/Makefile
index 388ec0a3ea9..1119233597a 100644
--- a/arch/um/kernel/Makefile
+++ b/arch/um/kernel/Makefile
@@ -3,6 +3,9 @@
 # Licensed under the GPL
 #
 
+CPPFLAGS_vmlinux.lds := -U$(SUBARCH) -DSTART=$(LDS_START) \
+                        -DELF_ARCH=$(LDS_ELF_ARCH)        \
+                        -DELF_FORMAT=$(LDS_ELF_FORMAT)
 extra-y := vmlinux.lds
 clean-files :=
 
diff --git a/arch/um/kernel/dyn.lds.S b/arch/um/kernel/dyn.lds.S
index 715a188c047..7fcad58e216 100644
--- a/arch/um/kernel/dyn.lds.S
+++ b/arch/um/kernel/dyn.lds.S
@@ -16,11 +16,7 @@ SECTIONS
   _text = .;
   _stext = .;
   __init_begin = .;
-  .init.text : {
-	_sinittext = .;
-	INIT_TEXT
-	_einittext = .;
-  }
+  INIT_TEXT_SECTION(PAGE_SIZE)
 
   . = ALIGN(PAGE_SIZE);
 
@@ -96,8 +92,7 @@ SECTIONS
   .init_array     : { *(.init_array) }
   .fini_array     : { *(.fini_array) }
   .data           : {
-    . = ALIGN(KERNEL_STACK_SIZE);		/* init_task */
-    *(.data.init_task)
+    INIT_TASK_DATA(KERNEL_STACK_SIZE)
     . = ALIGN(KERNEL_STACK_SIZE);
     *(.data.init_irqstack)
     DATA_DATA
diff --git a/arch/um/kernel/init_task.c b/arch/um/kernel/init_task.c
index b25121b537d..8aa77b61a5f 100644
--- a/arch/um/kernel/init_task.c
+++ b/arch/um/kernel/init_task.c
@@ -30,9 +30,8 @@ EXPORT_SYMBOL(init_task);
  * "init_task" linker map entry..
  */
 
-union thread_union init_thread_union
-	__attribute__((__section__(".data.init_task"))) =
-		{ INIT_THREAD_INFO(init_task) };
+union thread_union init_thread_union __init_task_data =
+	{ INIT_THREAD_INFO(init_task) };
 
 union thread_union cpu0_irqstack
 	__attribute__((__section__(".data.init_irqstack"))) =
diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c
index 454cdb43e35..039270b9b73 100644
--- a/arch/um/kernel/irq.c
+++ b/arch/um/kernel/irq.c
@@ -10,6 +10,7 @@
 #include "linux/interrupt.h"
 #include "linux/kernel_stat.h"
 #include "linux/module.h"
+#include "linux/sched.h"
 #include "linux/seq_file.h"
 #include "as-layout.h"
 #include "kern_util.h"
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index 61d7e6138ff..a5d5e70cf6f 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -77,7 +77,7 @@ void __init mem_init(void)
 	num_physpages = totalram_pages;
 	max_pfn = totalram_pages;
 	printk(KERN_INFO "Memory: %luk available\n",
-	       (unsigned long) nr_free_pages() << (PAGE_SHIFT-10));
+	       nr_free_pages() << (PAGE_SHIFT-10));
 	kmalloc_ok = 1;
 
 #ifdef CONFIG_HIGHMEM
diff --git a/arch/um/kernel/skas/mmu.c b/arch/um/kernel/skas/mmu.c
index 0cd9a7a05e7..8bfd1e90581 100644
--- a/arch/um/kernel/skas/mmu.c
+++ b/arch/um/kernel/skas/mmu.c
@@ -38,10 +38,10 @@ static int init_stub_pte(struct mm_struct *mm, unsigned long proc,
 	*pte = pte_mkread(*pte);
 	return 0;
 
- out_pmd:
-	pud_free(mm, pud);
  out_pte:
 	pmd_free(mm, pmd);
+ out_pmd:
+	pud_free(mm, pud);
  out:
 	return -ENOMEM;
 }
diff --git a/arch/um/kernel/smp.c b/arch/um/kernel/smp.c
index 98351c78bc8..106bf27e2a9 100644
--- a/arch/um/kernel/smp.c
+++ b/arch/um/kernel/smp.c
@@ -111,7 +111,7 @@ void smp_prepare_cpus(unsigned int maxcpus)
 	int i;
 
 	for (i = 0; i < ncpus; ++i)
-		cpu_set(i, cpu_possible_map);
+		set_cpu_possible(i, true);
 
 	cpu_clear(me, cpu_online_map);
 	cpu_set(me, cpu_online_map);
diff --git a/arch/um/kernel/uml.lds.S b/arch/um/kernel/uml.lds.S
index 2ebd39765db..e7a6cca667a 100644
--- a/arch/um/kernel/uml.lds.S
+++ b/arch/um/kernel/uml.lds.S
@@ -22,11 +22,7 @@ SECTIONS
   _text = .;
   _stext = .;
   __init_begin = .;
-  .init.text : {
-	_sinittext = .;
-	INIT_TEXT
-	_einittext = .;
-  }
+  INIT_TEXT_SECTION(PAGE_SIZE)
   . = ALIGN(PAGE_SIZE);
 
   .text      :
@@ -52,8 +48,7 @@ SECTIONS
   init.data : { INIT_DATA }
   .data    :
   {
-    . = ALIGN(KERNEL_STACK_SIZE);		/* init_task */
-    *(.data.init_task)
+    INIT_TASK_DATA(KERNEL_STACK_SIZE)
     . = ALIGN(KERNEL_STACK_SIZE);
     *(.data.init_irqstack)
     DATA_DATA
@@ -81,19 +76,10 @@ SECTIONS
   _edata  =  .;
   PROVIDE (edata = .);
   . = ALIGN(PAGE_SIZE);
-  .sbss      :
-  {
-   __bss_start = .;
-   PROVIDE(_bss_start = .);
-   *(.sbss)
-   *(.scommon)
-  }
-  .bss       :
-  {
-   *(.dynbss)
-   *(.bss)
-   *(COMMON)
-  }
+  __bss_start = .;
+  PROVIDE(_bss_start = .);
+  SBSS(0)
+  BSS(0)
   _end = .;
   PROVIDE (end = .);
 
diff --git a/arch/um/kernel/vmlinux.lds.S b/arch/um/kernel/vmlinux.lds.S
index f8aeb448aab..16e49bfa2b4 100644
--- a/arch/um/kernel/vmlinux.lds.S
+++ b/arch/um/kernel/vmlinux.lds.S
@@ -1,3 +1,6 @@
+
+KERNEL_STACK_SIZE = 4096 * (1 << CONFIG_KERNEL_STACK_ORDER);
+
 #ifdef CONFIG_LD_SCRIPT_STATIC
 #include "uml.lds.S"
 #else
diff --git a/arch/um/os-Linux/helper.c b/arch/um/os-Linux/helper.c
index 30860b89ec5..b6b1096152a 100644
--- a/arch/um/os-Linux/helper.c
+++ b/arch/um/os-Linux/helper.c
@@ -15,7 +15,6 @@
 #include "os.h"
 #include "um_malloc.h"
 #include "user.h"
-#include <linux/limits.h>
 
 struct helper_data {
 	void (*pre_exec)(void*);