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Commit 00ef2d2f authored by David Rientjes's avatar David Rientjes Committed by Linus Torvalds
Browse files

mm: use NUMA_NO_NODE 



Make a sweep through mm/ and convert code that uses -1 directly to using
the more appropriate NUMA_NO_NODE.

Signed-off-by: default avatarDavid Rientjes <rientjes@google.com>
Reviewed-by: default avatarYasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 751efd86

mm/huge_memory.c

+2 −2
Original line number Diff line number Diff line
@@ -2376,7 +2376,7 @@ static int khugepaged_scan_pmd(struct mm_struct *mm, 
	struct page *page;

	unsigned long _address;

	spinlock_t *ptl;

	int node = -1;

	int node = NUMA_NO_NODE;



	VM_BUG_ON(address & ~HPAGE_PMD_MASK);
@@ -2406,7 +2406,7 @@ static int khugepaged_scan_pmd(struct mm_struct *mm, 
		 * be more sophisticated and look at more pages,

		 * but isn't for now.

		 */

		if (node == -1)

		if (node == NUMA_NO_NODE)

			node = page_to_nid(page);

		VM_BUG_ON(PageCompound(page));

		if (!PageLRU(page) || PageLocked(page) || !PageAnon(page))

mm/mempolicy.c

+5 −5
Original line number Diff line number Diff line
@@ -26,7 +26,7 @@ 
 *                the allocation to memory nodes instead

 *

 * preferred       Try a specific node first before normal fallback.

 *                As a special case node -1 here means do the allocation

 *                As a special case NUMA_NO_NODE here means do the allocation

 *                on the local CPU. This is normally identical to default,

 *                but useful to set in a VMA when you have a non default

 *                process policy.
@@ -127,7 +127,7 @@ static struct mempolicy *get_task_policy(struct task_struct *p) 


	if (!pol) {

		node = numa_node_id();

		if (node != -1)

		if (node != NUMA_NO_NODE)

			pol = &preferred_node_policy[node];



		/* preferred_node_policy is not initialised early in boot */
@@ -258,7 +258,7 @@ static struct mempolicy *mpol_new(unsigned short mode, unsigned short flags, 
	struct mempolicy *policy;



	pr_debug("setting mode %d flags %d nodes[0] %lx\n",

		 mode, flags, nodes ? nodes_addr(*nodes)[0] : -1);

		 mode, flags, nodes ? nodes_addr(*nodes)[0] : NUMA_NO_NODE);



	if (mode == MPOL_DEFAULT) {

		if (nodes && !nodes_empty(*nodes))
@@ -1221,7 +1221,7 @@ static long do_mbind(unsigned long start, unsigned long len, 


	pr_debug("mbind %lx-%lx mode:%d flags:%d nodes:%lx\n",

		 start, start + len, mode, mode_flags,

		 nmask ? nodes_addr(*nmask)[0] : -1);

		 nmask ? nodes_addr(*nmask)[0] : NUMA_NO_NODE);



	if (flags & (MPOL_MF_MOVE | MPOL_MF_MOVE_ALL)) {
@@ -2488,7 +2488,7 @@ int mpol_set_shared_policy(struct shared_policy *info, 
		 vma->vm_pgoff,

		 sz, npol ? npol->mode : -1,

		 npol ? npol->flags : -1,

		 npol ? nodes_addr(npol->v.nodes)[0] : -1);

		 npol ? nodes_addr(npol->v.nodes)[0] : NUMA_NO_NODE);



	if (npol) {

		new = sp_alloc(vma->vm_pgoff, vma->vm_pgoff + sz, npol);

mm/page_alloc.c

+1 −1
Original line number Diff line number Diff line
@@ -3261,7 +3261,7 @@ static int find_next_best_node(int node, nodemask_t *used_node_mask) 
{

	int n, val;

	int min_val = INT_MAX;

	int best_node = -1;

	int best_node = NUMA_NO_NODE;

	const struct cpumask *tmp = cpumask_of_node(0);



	/* Use the local node if we haven't already */

mm/vmalloc.c

+18 −15
Original line number Diff line number Diff line
@@ -1376,8 +1376,8 @@ static struct vm_struct *__get_vm_area_node(unsigned long size, 
struct vm_struct *__get_vm_area(unsigned long size, unsigned long flags,

				unsigned long start, unsigned long end)

{

	return __get_vm_area_node(size, 1, flags, start, end, -1, GFP_KERNEL,

						__builtin_return_address(0));

	return __get_vm_area_node(size, 1, flags, start, end, NUMA_NO_NODE,

				  GFP_KERNEL, __builtin_return_address(0));

}

EXPORT_SYMBOL_GPL(__get_vm_area);
@@ -1385,8 +1385,8 @@ struct vm_struct *__get_vm_area_caller(unsigned long size, unsigned long flags, 
				       unsigned long start, unsigned long end,

				       const void *caller)

{

	return __get_vm_area_node(size, 1, flags, start, end, -1, GFP_KERNEL,

				  caller);

	return __get_vm_area_node(size, 1, flags, start, end, NUMA_NO_NODE,

				  GFP_KERNEL, caller);

}



/**
@@ -1401,14 +1401,15 @@ struct vm_struct *__get_vm_area_caller(unsigned long size, unsigned long flags, 
struct vm_struct *get_vm_area(unsigned long size, unsigned long flags)

{

	return __get_vm_area_node(size, 1, flags, VMALLOC_START, VMALLOC_END,

				-1, GFP_KERNEL, __builtin_return_address(0));

				  NUMA_NO_NODE, GFP_KERNEL,

				  __builtin_return_address(0));

}



struct vm_struct *get_vm_area_caller(unsigned long size, unsigned long flags,

				const void *caller)

{

	return __get_vm_area_node(size, 1, flags, VMALLOC_START, VMALLOC_END,

						-1, GFP_KERNEL, caller);

				  NUMA_NO_NODE, GFP_KERNEL, caller);

}



/**
@@ -1650,7 +1651,7 @@ static void *__vmalloc_area_node(struct vm_struct *area, gfp_t gfp_mask, 
 *	@end:		vm area range end

 *	@gfp_mask:	flags for the page level allocator

 *	@prot:		protection mask for the allocated pages

 *	@node:		node to use for allocation or -1

 *	@node:		node to use for allocation or NUMA_NO_NODE

 *	@caller:	caller's return address

 *

 *	Allocate enough pages to cover @size from the page level
@@ -1706,7 +1707,7 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align, 
 *	@align:		desired alignment

 *	@gfp_mask:	flags for the page level allocator

 *	@prot:		protection mask for the allocated pages

 *	@node:		node to use for allocation or -1

 *	@node:		node to use for allocation or NUMA_NO_NODE

 *	@caller:	caller's return address

 *

 *	Allocate enough pages to cover @size from the page level
@@ -1723,7 +1724,7 @@ static void *__vmalloc_node(unsigned long size, unsigned long align, 


void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot)

{

	return __vmalloc_node(size, 1, gfp_mask, prot, -1,

	return __vmalloc_node(size, 1, gfp_mask, prot, NUMA_NO_NODE,

				__builtin_return_address(0));

}

EXPORT_SYMBOL(__vmalloc);
@@ -1746,7 +1747,8 @@ static inline void *__vmalloc_node_flags(unsigned long size, 
 */

void *vmalloc(unsigned long size)

{

	return __vmalloc_node_flags(size, -1, GFP_KERNEL | __GFP_HIGHMEM);

	return __vmalloc_node_flags(size, NUMA_NO_NODE,

				    GFP_KERNEL | __GFP_HIGHMEM);

}

EXPORT_SYMBOL(vmalloc);
@@ -1762,7 +1764,7 @@ EXPORT_SYMBOL(vmalloc); 
 */

void *vzalloc(unsigned long size)

{

	return __vmalloc_node_flags(size, -1,

	return __vmalloc_node_flags(size, NUMA_NO_NODE,

				GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO);

}

EXPORT_SYMBOL(vzalloc);
@@ -1781,7 +1783,8 @@ void *vmalloc_user(unsigned long size) 


	ret = __vmalloc_node(size, SHMLBA,

			     GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO,

			     PAGE_KERNEL, -1, __builtin_return_address(0));

			     PAGE_KERNEL, NUMA_NO_NODE,

			     __builtin_return_address(0));

	if (ret) {

		area = find_vm_area(ret);

		area->flags |= VM_USERMAP;
@@ -1846,7 +1849,7 @@ EXPORT_SYMBOL(vzalloc_node); 
void *vmalloc_exec(unsigned long size)

{

	return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC,

			      -1, __builtin_return_address(0));

			      NUMA_NO_NODE, __builtin_return_address(0));

}



#if defined(CONFIG_64BIT) && defined(CONFIG_ZONE_DMA32)
@@ -1867,7 +1870,7 @@ void *vmalloc_exec(unsigned long size) 
void *vmalloc_32(unsigned long size)

{

	return __vmalloc_node(size, 1, GFP_VMALLOC32, PAGE_KERNEL,

			      -1, __builtin_return_address(0));

			      NUMA_NO_NODE, __builtin_return_address(0));

}

EXPORT_SYMBOL(vmalloc_32);
@@ -1884,7 +1887,7 @@ void *vmalloc_32_user(unsigned long size) 
	void *ret;



	ret = __vmalloc_node(size, 1, GFP_VMALLOC32 | __GFP_ZERO, PAGE_KERNEL,

			     -1, __builtin_return_address(0));

			     NUMA_NO_NODE, __builtin_return_address(0));

	if (ret) {

		area = find_vm_area(ret);

		area->flags |= VM_USERMAP;