From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756173Ab2EEPKg (ORCPT ); Sat, 5 May 2012 11:10:36 -0400 Received: from www.linutronix.de ([62.245.132.108]:33119 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755898Ab2EEPFm (ORCPT ); Sat, 5 May 2012 11:05:42 -0400 Message-Id: <20120505150141.366461660@linutronix.de> User-Agent: quilt/0.48-1 Date: Sat, 05 May 2012 15:05:41 -0000 From: Thomas Gleixner To: LKML Subject: [patch 02/18] fork: Provide weak arch_release_[task_struct|thread_info] functions References: <20120505150007.543515803@linutronix.de> Content-Disposition: inline; filename=fork-provide-arch-release-task-struct.patch X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org These functions allow us to move most of the duplicated thread_info allocators to the core code. Signed-off-by: Thomas Gleixner --- kernel/fork.c | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) Index: tip/kernel/fork.c =================================================================== --- tip.orig/kernel/fork.c +++ tip/kernel/fork.c @@ -112,14 +112,26 @@ int nr_processes(void) } #ifndef __HAVE_ARCH_TASK_STRUCT_ALLOCATOR -# define alloc_task_struct_node(node) \ - kmem_cache_alloc_node(task_struct_cachep, GFP_KERNEL, node) -# define free_task_struct(tsk) \ - kmem_cache_free(task_struct_cachep, (tsk)) static struct kmem_cache *task_struct_cachep; + +static inline struct task_struct *alloc_task_struct_node(int node) +{ + return kmem_cache_alloc_node(task_struct_cachep, GFP_KERNEL, node); +} + +void __weak arch_release_task_struct(struct task_struct *tsk) { } + +static inline void free_task_struct(struct task_struct *tsk) +{ + arch_release_task_struct(tsk); + kmem_cache_free(task_struct_cachep, tsk); +} #endif #ifndef __HAVE_ARCH_THREAD_INFO_ALLOCATOR + +void __weak arch_release_thread_info(struct thread_info *ti) { } + static struct thread_info *alloc_thread_info_node(struct task_struct *tsk, int node) { @@ -135,6 +147,7 @@ static struct thread_info *alloc_thread_ static inline void free_thread_info(struct thread_info *ti) { + arch_release_thread_info(ti); free_pages((unsigned long)ti, THREAD_SIZE_ORDER); } #endif