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mm: NUMA aware alloc_thread_info_node()

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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>
This commit is contained in:
Eric Dumazet
2011-03-22 16:30:42 -07:00
committed by Linus Torvalds
parent 504f52b543
commit b6a84016bd
19 changed files with 70 additions and 64 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
arch/sparc/include/asm/thread_info_32.h
View File

@@ -82,8 +82,8 @@ register struct thread_info *current_thread_info_reg asm("g6");
#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
BTFIXUPDEF_CALL(struct thread_info *, alloc_thread_info, void)
#define alloc_thread_info(tsk) BTFIXUP_CALL(alloc_thread_info)()
BTFIXUPDEF_CALL(struct thread_info *, alloc_thread_info_node, int)
#define alloc_thread_info_node(tsk, node) BTFIXUP_CALL(alloc_thread_info_node)(node)
BTFIXUPDEF_CALL(void, free_thread_info, struct thread_info *)
#define free_thread_info(ti) BTFIXUP_CALL(free_thread_info)(ti)
@@ -92,7 +92,7 @@ BTFIXUPDEF_CALL(void, free_thread_info, struct thread_info *)
/*
* Size of kernel stack for each process.
* Observe the order of get_free_pages() in alloc_thread_info().
* Observe the order of get_free_pages() in alloc_thread_info_node().
* The sun4 has 8K stack too, because it's short on memory, and 16K is a waste.
*/
#define THREAD_SIZE 8192

24
arch/sparc/include/asm/thread_info_64.h
View File

@@ -146,21 +146,21 @@ register struct thread_info *current_thread_info_reg asm("g6");
#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
#ifdef CONFIG_DEBUG_STACK_USAGE
#define alloc_thread_info(tsk) \
({ \
struct thread_info *ret; \
\
ret = (struct thread_info *) \
__get_free_pages(GFP_KERNEL, __THREAD_INFO_ORDER); \
if (ret) \
memset(ret, 0, PAGE_SIZE<<__THREAD_INFO_ORDER); \
ret; \
})
#define THREAD_FLAGS (GFP_KERNEL | __GFP_ZERO)
#else
#define alloc_thread_info(tsk) \
((struct thread_info *)__get_free_pages(GFP_KERNEL, __THREAD_INFO_ORDER))
#define THREAD_FLAGS (GFP_KERNEL)
#endif
#define alloc_thread_info_node(tsk, node) \
({ \
struct page *page = alloc_pages_node(node, THREAD_FLAGS, \
__THREAD_INFO_ORDER); \
struct thread_info *ret; \
\
ret = page ? page_address(page) : NULL; \
ret; \
})
#define free_thread_info(ti) \
free_pages((unsigned long)(ti),__THREAD_INFO_ORDER)