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hexagon: Use common threadinfo allocator
The core now has a threadinfo allocator which uses a kmemcache when THREAD_SIZE < PAGE_SIZE. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Richard Kuo <rkuo@codeaurora.org> Link: http://lkml.kernel.org/r/20120505150141.812612113@linutronix.de
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2 changed files with 0 additions and 45 deletions
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@ -31,15 +31,7 @@
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#define THREAD_SHIFT 12
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#define THREAD_SIZE (1<<THREAD_SHIFT)
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#if THREAD_SHIFT >= PAGE_SHIFT
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#define THREAD_SIZE_ORDER (THREAD_SHIFT - PAGE_SHIFT)
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#else /* don't use standard allocator */
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#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
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extern struct thread_info *alloc_thread_info_node(struct task_struct *tsk, int node);
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extern void free_thread_info(struct thread_info *ti);
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#endif
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#ifndef __ASSEMBLY__
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@ -233,43 +233,6 @@ unsigned long get_wchan(struct task_struct *p)
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return 0;
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}
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/*
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* Borrowed from PowerPC -- basically allow smaller kernel stacks if we
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* go crazy with the page sizes.
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*/
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#if THREAD_SHIFT < PAGE_SHIFT
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static struct kmem_cache *thread_info_cache;
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struct thread_info *alloc_thread_info_node(struct task_struct *tsk, int node)
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{
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struct thread_info *ti;
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ti = kmem_cache_alloc_node(thread_info_cache, GFP_KERNEL, node);
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if (unlikely(ti == NULL))
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return NULL;
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#ifdef CONFIG_DEBUG_STACK_USAGE
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memset(ti, 0, THREAD_SIZE);
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#endif
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return ti;
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}
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void free_thread_info(struct thread_info *ti)
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{
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kmem_cache_free(thread_info_cache, ti);
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}
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/* Weak symbol; called by init/main.c */
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void thread_info_cache_init(void)
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{
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thread_info_cache = kmem_cache_create("thread_info", THREAD_SIZE,
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THREAD_SIZE, 0, NULL);
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BUG_ON(thread_info_cache == NULL);
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}
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#endif /* THREAD_SHIFT < PAGE_SHIFT */
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/*
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* Required placeholder.
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*/
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