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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2011-03-22 16:30:42 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-22 17:44:01 -0700 |
| commit | b6a84016bd2598e35ead635147fa53619982648d (patch) | |
| tree | a73dc0ef4e353723bf123898f0fc143e587c16d8 /arch/sh | |
| parent | 504f52b5439aaf26d3e2c1d45ec10fce38c8dd27 (diff) | |
| download | blackbird-op-linux-b6a84016bd2598e35ead635147fa53619982648d.tar.gz blackbird-op-linux-b6a84016bd2598e35ead635147fa53619982648d.zip | |
mm: NUMA aware alloc_thread_info_node()
Add a node parameter to alloc_thread_info(), and change its name to
alloc_thread_info_node()
This change is needed to allow NUMA aware kthread_create_on_cpu()
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Tejun Heo <tj@kernel.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: David Howells <dhowells@redhat.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/sh')
| -rw-r--r-- | arch/sh/include/asm/thread_info.h | 2 | ||||
| -rw-r--r-- | arch/sh/kernel/process.c | 16 |
2 files changed, 10 insertions, 8 deletions
diff --git a/arch/sh/include/asm/thread_info.h b/arch/sh/include/asm/thread_info.h index c228946926ed..ea2d5089de1e 100644 --- a/arch/sh/include/asm/thread_info.h +++ b/arch/sh/include/asm/thread_info.h @@ -95,7 +95,7 @@ static inline struct thread_info *current_thread_info(void) #endif -extern struct thread_info *alloc_thread_info(struct task_struct *tsk); +extern struct thread_info *alloc_thread_info_node(struct task_struct *tsk, int node); extern void free_thread_info(struct thread_info *ti); extern void arch_task_cache_init(void); #define arch_task_cache_init arch_task_cache_init diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c index dcb126dc76fd..f39ad57296b7 100644 --- a/arch/sh/kernel/process.c +++ b/arch/sh/kernel/process.c @@ -32,16 +32,16 @@ void free_thread_xstate(struct task_struct *tsk) #if THREAD_SHIFT < PAGE_SHIFT static struct kmem_cache *thread_info_cache; -struct thread_info *alloc_thread_info(struct task_struct *tsk) +struct thread_info *alloc_thread_info(struct task_struct *tsk, int node) { struct thread_info *ti; - - ti = kmem_cache_alloc(thread_info_cache, GFP_KERNEL); - if (unlikely(ti == NULL)) - return NULL; #ifdef CONFIG_DEBUG_STACK_USAGE - memset(ti, 0, THREAD_SIZE); + gfp_t mask = GFP_KERNEL | __GFP_ZERO; +#else + gfp_t mask = GFP_KERNEL; #endif + + ti = kmem_cache_alloc_node(thread_info_cache, mask, node); return ti; } @@ -64,7 +64,9 @@ struct thread_info *alloc_thread_info(struct task_struct *tsk) #else gfp_t mask = GFP_KERNEL; #endif - return (struct thread_info *)__get_free_pages(mask, THREAD_SIZE_ORDER); + struct page *page = alloc_pages_node(node, mask, THREAD_SIZE_ORDER); + + return page ? page_address(page) : NULL; } void free_thread_info(struct thread_info *ti) |
