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| author | Thomas Gleixner <tglx@linutronix.de> | 2012-05-05 15:05:41 +0000 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2012-05-08 13:55:20 +0200 |
| commit | 41101809a865dd0be1b56eff46c83fad321870b2 (patch) | |
| tree | be62c4da213f9ab79ac3f874f1ed8c6af0ff5b0a /kernel/fork.c | |
| parent | 2889f60814e15dea644782597d897cdba943564f (diff) | |
| download | linux-rt-41101809a865dd0be1b56eff46c83fad321870b2.tar.gz | |
fork: Provide weak arch_release_[task_struct|thread_info] functions
These functions allow us to move most of the duplicated thread_info
allocators to the core code.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20120505150141.366461660@linutronix.de
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 5d22b9b8cf7b..2dfad0269674 100644 --- a/kernel/fork.c +++ b/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) { @@ -131,6 +143,7 @@ static struct thread_info *alloc_thread_info_node(struct task_struct *tsk, static inline void free_thread_info(struct thread_info *ti) { + arch_release_thread_info(ti); free_pages((unsigned long)ti, THREAD_SIZE_ORDER); } #endif |