Merge branch 'akpm' (patches from Andrew)

Merge yet more updates from Andrew Morton:

 - a few MM remainders

 - misc things

 - autofs updates

 - signals

 - affs updates

 - ipc

 - nilfs2

 - spelling.txt updates

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (78 commits)
  mm, x86: fix HIGHMEM64 && PARAVIRT build config for native_pud_clear()
  mm: add arch-independent testcases for RODATA
  hfs: atomically read inode size
  mm: clarify mm_struct.mm_{users,count} documentation
  mm: use mmget_not_zero() helper
  mm: add new mmget() helper
  mm: add new mmgrab() helper
  checkpatch: warn when formats use %Z and suggest %z
  lib/vsprintf.c: remove %Z support
  scripts/spelling.txt: add some typo-words
  scripts/spelling.txt: add "followings" pattern and fix typo instances
  scripts/spelling.txt: add "therfore" pattern and fix typo instances
  scripts/spelling.txt: add "overwriten" pattern and fix typo instances
  scripts/spelling.txt: add "overwritting" pattern and fix typo instances
  scripts/spelling.txt: add "deintialize(d)" pattern and fix typo instances
  scripts/spelling.txt: add "disassocation" pattern and fix typo instances
  scripts/spelling.txt: add "omited" pattern and fix typo instances
  scripts/spelling.txt: add "explictely" pattern and fix typo instances
  scripts/spelling.txt: add "applys" pattern and fix typo instances
  scripts/spelling.txt: add "configuartion" pattern and fix typo instances
  ...

9 files changed, 16 insertions, 10 deletions

diff --git a/arch/sparc/include/asm/kprobes.h b/arch/sparc/include/asm/kprobes.h
index a145d798e112..49f8402035d7 100644
--- a/arch/sparc/include/asm/kprobes.h
+++ b/arch/sparc/include/asm/kprobes.h
@@ -1,13 +1,17 @@
 #ifndef _SPARC64_KPROBES_H
 #define _SPARC64_KPROBES_H
 
+#include <asm-generic/kprobes.h>
+
+#define BREAKPOINT_INSTRUCTION   0x91d02070 /* ta 0x70 */
+#define BREAKPOINT_INSTRUCTION_2 0x91d02071 /* ta 0x71 */
+
+#ifdef CONFIG_KPROBES
 #include <linux/types.h>
 #include <linux/percpu.h>
 
 typedef u32 kprobe_opcode_t;
 
-#define BREAKPOINT_INSTRUCTION   0x91d02070 /* ta 0x70 */
-#define BREAKPOINT_INSTRUCTION_2 0x91d02071 /* ta 0x71 */
 #define MAX_INSN_SIZE 2
 
 #define kretprobe_blacklist_size 0
@@ -48,4 +52,6 @@ int kprobe_exceptions_notify(struct notifier_block *self,
 int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
 asmlinkage void __kprobes kprobe_trap(unsigned long trap_level,
 				      struct pt_regs *regs);
+
+#endif /* CONFIG_KPROBES */
 #endif /* _SPARC64_KPROBES_H */
diff --git a/arch/sparc/include/asm/switch_to_32.h b/arch/sparc/include/asm/switch_to_32.h
index 16f10374feb3..475dd4158ae4 100644
--- a/arch/sparc/include/asm/switch_to_32.h
+++ b/arch/sparc/include/asm/switch_to_32.h
@@ -9,7 +9,7 @@ extern struct thread_info *current_set[NR_CPUS];
  * Flush windows so that the VM switch which follows
  * would not pull the stack from under us.
  *
- * SWITCH_ENTER and SWITH_DO_LAZY_FPU do not work yet (e.g. SMP does not work)
+ * SWITCH_ENTER and SWITCH_DO_LAZY_FPU do not work yet (e.g. SMP does not work)
  * XXX WTF is the above comment? Found in late teen 2.4.x.
  */
 #ifdef CONFIG_SMP
diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c
index 71e16f2241c2..b99d33797e1d 100644
--- a/arch/sparc/kernel/leon_smp.c
+++ b/arch/sparc/kernel/leon_smp.c
@@ -93,7 +93,7 @@ void leon_cpu_pre_online(void *arg)
 			     : "memory" /* paranoid */);
 
 	/* Attach to the address space of init_task. */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 
 	while (!cpumask_test_cpu(cpuid, &smp_commenced_mask))
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index 90a02cb64e20..8e3e13924594 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -122,7 +122,7 @@ void smp_callin(void)
 	current_thread_info()->new_child = 0;
 
 	/* Attach to the address space of init_task. */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 
 	/* inform the notifiers about the new cpu */
diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c
index 9d98e5002a09..7b55c50eabe5 100644
--- a/arch/sparc/kernel/sun4d_smp.c
+++ b/arch/sparc/kernel/sun4d_smp.c
@@ -93,7 +93,7 @@ void sun4d_cpu_pre_online(void *arg)
 	show_leds(cpuid);
 
 	/* Attach to the address space of init_task. */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 
 	local_ops->cache_all();
diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c
index 278c40abce82..633c4cf6fdb0 100644
--- a/arch/sparc/kernel/sun4m_smp.c
+++ b/arch/sparc/kernel/sun4m_smp.c
@@ -59,7 +59,7 @@ void sun4m_cpu_pre_online(void *arg)
 			     : "memory" /* paranoid */);
 
 	/* Attach to the address space of init_task. */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 
 	while (!cpumask_test_cpu(cpuid, &smp_commenced_mask))
diff --git a/arch/sparc/kernel/traps_32.c b/arch/sparc/kernel/traps_32.c
index 4f21df7d4f13..ecddac5a4c96 100644
--- a/arch/sparc/kernel/traps_32.c
+++ b/arch/sparc/kernel/traps_32.c
@@ -448,7 +448,7 @@ void trap_init(void)
 		thread_info_offsets_are_bolixed_pete();
 
 	/* Attach to the address space of init_task. */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 
 	/* NOTE: Other cpus have this done as they are started
diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
index dfc97a47c9a0..e022d7b00390 100644
--- a/arch/sparc/kernel/traps_64.c
+++ b/arch/sparc/kernel/traps_64.c
@@ -2837,6 +2837,6 @@ void __init trap_init(void)
 	/* Attach to the address space of init_task.  On SMP we
 	 * do this in smp.c:smp_callin for other cpus.
 	 */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 }
diff --git a/arch/sparc/kernel/visemul.c b/arch/sparc/kernel/visemul.c
index c4ac58e483a4..8f35eea2103a 100644
--- a/arch/sparc/kernel/visemul.c
+++ b/arch/sparc/kernel/visemul.c
@@ -30,7 +30,7 @@
 /* 001001011 - two 32-bit merges */
 #define FPMERGE_OPF	0x04b
 
-/* 000110001 - 8-by-16-bit partitoned product  */
+/* 000110001 - 8-by-16-bit partitioned product  */
 #define FMUL8x16_OPF	0x031
 
 /* 000110011 - 8-by-16-bit upper alpha partitioned product  */