Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull smp hotplug cleanups from Thomas Gleixner:
 "This series is merily a cleanup of code copied around in arch/* and
  not changing any of the real cpu hotplug horrors yet.  I wish I'd had
  something more substantial for 3.5, but I underestimated the lurking
  horror..."

Fix up trivial conflicts in arch/{arm,sparc,x86}/Kconfig and
arch/sparc/include/asm/thread_info_32.h

* 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (79 commits)
  um: Remove leftover declaration of alloc_task_struct_node()
  task_allocator: Use config switches instead of magic defines
  sparc: Use common threadinfo allocator
  score: Use common threadinfo allocator
  sh-use-common-threadinfo-allocator
  mn10300: Use common threadinfo allocator
  powerpc: Use common threadinfo allocator
  mips: Use common threadinfo allocator
  hexagon: Use common threadinfo allocator
  m32r: Use common threadinfo allocator
  frv: Use common threadinfo allocator
  cris: Use common threadinfo allocator
  x86: Use common threadinfo allocator
  c6x: Use common threadinfo allocator
  fork: Provide kmemcache based thread_info allocator
  tile: Use common threadinfo allocator
  fork: Provide weak arch_release_[task_struct|thread_info] functions
  fork: Move thread info gfp flags to header
  fork: Remove the weak insanity
  sh: Remove cpu_idle_wait()
  ...

3 files changed, 5 insertions, 27 deletions

diff --git a/arch/sparc/include/asm/leon.h b/arch/sparc/include/asm/leon.h
index 24f802beffb9..07659124c140 100644
--- a/arch/sparc/include/asm/leon.h
+++ b/arch/sparc/include/asm/leon.h
@@ -270,6 +270,7 @@ struct leon2_cacheregs {
 #include <linux/interrupt.h>
 
 struct device_node;
+struct task_struct;
 extern unsigned int leon_build_device_irq(unsigned int real_irq,
 					   irq_flow_handler_t flow_handler,
 					   const char *name, int do_ack);
@@ -289,7 +290,7 @@ extern int leon_smp_nrcpus(void);
 extern void leon_clear_profile_irq(int cpu);
 extern void leon_smp_done(void);
 extern void leon_boot_cpus(void);
-extern int leon_boot_one_cpu(int i);
+extern int leon_boot_one_cpu(int i, struct task_struct *);
 void leon_init_smp(void);
 extern void cpu_idle(void);
 extern void init_IRQ(void);
@@ -325,7 +326,7 @@ extern int leon_ipi_irq;
 #define init_leon() do {} while (0)
 #define leon_smp_done() do {} while (0)
 #define leon_boot_cpus() do {} while (0)
-#define leon_boot_one_cpu(i) 1
+#define leon_boot_one_cpu(i, t) 1
 #define leon_init_smp() do {} while (0)
 
 #endif /* !defined(CONFIG_SPARC_LEON) */
diff --git a/arch/sparc/include/asm/thread_info_32.h b/arch/sparc/include/asm/thread_info_32.h
index cd0b2dc8fab9..21a38946541d 100644
--- a/arch/sparc/include/asm/thread_info_32.h
+++ b/arch/sparc/include/asm/thread_info_32.h
@@ -79,8 +79,6 @@ register struct thread_info *current_thread_info_reg asm("g6");
  */
 #define THREAD_INFO_ORDER  1
 
-#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
-
 struct thread_info * alloc_thread_info_node(struct task_struct *tsk, int node);
 void free_thread_info(struct thread_info *);
 
diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h
index 01d057fe6a3f..7f0981b09451 100644
--- a/arch/sparc/include/asm/thread_info_64.h
+++ b/arch/sparc/include/asm/thread_info_64.h
@@ -138,32 +138,11 @@ register struct thread_info *current_thread_info_reg asm("g6");
 
 /* thread information allocation */
 #if PAGE_SHIFT == 13
-#define __THREAD_INFO_ORDER	1
+#define THREAD_SIZE_ORDER	1
 #else /* PAGE_SHIFT == 13 */
-#define __THREAD_INFO_ORDER	0
+#define THREAD_SIZE_ORDER	0
 #endif /* PAGE_SHIFT == 13 */
 
-#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
-
-#ifdef CONFIG_DEBUG_STACK_USAGE
-#define THREAD_FLAGS (GFP_KERNEL | __GFP_ZERO)
-#else
-#define THREAD_FLAGS (GFP_KERNEL)
-#endif
-
-#define alloc_thread_info_node(tsk, node)				\
-({									\
-	struct page *page = alloc_pages_node(node, THREAD_FLAGS,	\
-					     __THREAD_INFO_ORDER);	\
-	struct thread_info *ret;					\
-									\
-	ret = page ? page_address(page) : NULL;				\
-	ret;								\
-})
-
-#define free_thread_info(ti) \
-	free_pages((unsigned long)(ti),__THREAD_INFO_ORDER)
-
 #define __thread_flag_byte_ptr(ti)	\
 	((unsigned char *)(&((ti)->flags)))
 #define __cur_thread_flag_byte_ptr	__thread_flag_byte_ptr(current_thread_info())