linux-kernel - [tip:smp/hotplug] mn10300: Use common threadinfo allocator

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Date:	Tue, 8 May 2012 05:42:54 -0700
From:	tip-bot for Thomas Gleixner <tglx@...utronix.de>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org,
	dhowells@...hat.com, tglx@...utronix.de
Subject: [tip:smp/hotplug] mn10300: Use common threadinfo allocator

Commit-ID:  c03a6a7ba6f456663e4b254cdde460b24c0852e1
Gitweb:     http://git.kernel.org/tip/c03a6a7ba6f456663e4b254cdde460b24c0852e1
Author:     Thomas Gleixner <tglx@...utronix.de>
AuthorDate: Sat, 5 May 2012 15:05:45 +0000
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Tue, 8 May 2012 14:08:45 +0200

mn10300: Use common threadinfo allocator

Let the core code allocate and handle the kgdb cleanup with the
arch_release_thread_info() function.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Cc: David Howells <dhowells@...hat.com>
Link: http://lkml.kernel.org/r/20120505150141.996582377@linutronix.de
---
 arch/mn10300/include/asm/thread_info.h |   17 +++--------------
 arch/mn10300/kernel/kgdb.c             |    3 +--
 2 files changed, 4 insertions(+), 16 deletions(-)

diff --git a/arch/mn10300/include/asm/thread_info.h b/arch/mn10300/include/asm/thread_info.h
index 28cf521..08251d6 100644
--- a/arch/mn10300/include/asm/thread_info.h
+++ b/arch/mn10300/include/asm/thread_info.h
@@ -20,8 +20,10 @@
 
 #ifdef CONFIG_4KSTACKS
 #define THREAD_SIZE		(4096)
+#define THREAD_SIZE_ORDER	(0)
 #else
 #define THREAD_SIZE		(8192)
+#define THREAD_SIZE_ORDER	(1)
 #endif
 
 #define STACK_WARN		(THREAD_SIZE / 8)
@@ -120,21 +122,8 @@ static inline unsigned long current_stack_pointer(void)
 	return sp;
 }
 
-#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
-
-/* thread information allocation */
-#ifdef CONFIG_DEBUG_STACK_USAGE
-#define alloc_thread_info_node(tsk, node)			\
-		kzalloc_node(THREAD_SIZE, GFP_KERNEL, node)
-#else
-#define alloc_thread_info_node(tsk, node)			\
-		kmalloc_node(THREAD_SIZE, GFP_KERNEL, node)
-#endif
-
 #ifndef CONFIG_KGDB
-#define free_thread_info(ti)	kfree((ti))
-#else
-extern void free_thread_info(struct thread_info *);
+void arch_release_thread_info(struct thread_info *ti)
 #endif
 #define get_thread_info(ti)	get_task_struct((ti)->task)
 #define put_thread_info(ti)	put_task_struct((ti)->task)
diff --git a/arch/mn10300/kernel/kgdb.c b/arch/mn10300/kernel/kgdb.c
index f6c981d..9977082 100644
--- a/arch/mn10300/kernel/kgdb.c
+++ b/arch/mn10300/kernel/kgdb.c
@@ -397,7 +397,7 @@ static bool kgdb_arch_undo_singlestep(struct pt_regs *regs)
  * single-step state is cleared.  At this point the breakpoints should have
  * been removed by __switch_to().
  */
-void free_thread_info(struct thread_info *ti)
+void arch_release_thread_info(struct thread_info *ti)
 {
 	if (kgdb_sstep_thread == ti) {
 		kgdb_sstep_thread = NULL;
@@ -407,7 +407,6 @@ void free_thread_info(struct thread_info *ti)
 		 * so force immediate reentry */
 		kgdb_breakpoint();
 	}
-	kfree(ti);
 }
 
 /*
--
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