Commit da024512 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Dan Williams
Browse files

mm: pass the vmem_altmap to arch_remove_memory and __remove_pages 



We can just pass this on instead of having to do a radix tree lookup
without proper locking 2 levels into the callchain.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent 7b73d978

arch/ia64/mm/init.c

+2 −2
Original line number Diff line number Diff line
@@ -663,7 +663,7 @@ int arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap, 
}



#ifdef CONFIG_MEMORY_HOTREMOVE

int arch_remove_memory(u64 start, u64 size)

int arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap)

{

	unsigned long start_pfn = start >> PAGE_SHIFT;

	unsigned long nr_pages = size >> PAGE_SHIFT;
@@ -671,7 +671,7 @@ int arch_remove_memory(u64 start, u64 size) 
	int ret;



	zone = page_zone(pfn_to_page(start_pfn));

	ret = __remove_pages(zone, start_pfn, nr_pages);

	ret = __remove_pages(zone, start_pfn, nr_pages, altmap);

	if (ret)

		pr_warn("%s: Problem encountered in __remove_pages() as"

			" ret=%d\n", __func__,  ret);

arch/powerpc/mm/mem.c

+2 −4
Original line number Diff line number Diff line
@@ -149,11 +149,10 @@ int arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap, 
}



#ifdef CONFIG_MEMORY_HOTREMOVE

int arch_remove_memory(u64 start, u64 size)

int arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap)

{

	unsigned long start_pfn = start >> PAGE_SHIFT;

	unsigned long nr_pages = size >> PAGE_SHIFT;

	struct vmem_altmap *altmap;

	struct page *page;

	int ret;
@@ -162,11 +161,10 @@ int arch_remove_memory(u64 start, u64 size) 
	 * when querying the zone.

	 */

	page = pfn_to_page(start_pfn);

	altmap = to_vmem_altmap((unsigned long) page);

	if (altmap)

		page += vmem_altmap_offset(altmap);



	ret = __remove_pages(page_zone(page), start_pfn, nr_pages);

	ret = __remove_pages(page_zone(page), start_pfn, nr_pages, altmap);

	if (ret)

		return ret;

arch/s390/mm/init.c

+1 −1
Original line number Diff line number Diff line
@@ -240,7 +240,7 @@ int arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap, 
}



#ifdef CONFIG_MEMORY_HOTREMOVE

int arch_remove_memory(u64 start, u64 size)

int arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap)

{

	/*

	 * There is no hardware or firmware interface which could trigger a

arch/sh/mm/init.c

+2 −2
Original line number Diff line number Diff line
@@ -510,7 +510,7 @@ EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid); 
#endif



#ifdef CONFIG_MEMORY_HOTREMOVE

int arch_remove_memory(u64 start, u64 size)

int arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap)

{

	unsigned long start_pfn = PFN_DOWN(start);

	unsigned long nr_pages = size >> PAGE_SHIFT;
@@ -518,7 +518,7 @@ int arch_remove_memory(u64 start, u64 size) 
	int ret;



	zone = page_zone(pfn_to_page(start_pfn));

	ret = __remove_pages(zone, start_pfn, nr_pages);

	ret = __remove_pages(zone, start_pfn, nr_pages, altmap);

	if (unlikely(ret))

		pr_warn("%s: Failed, __remove_pages() == %d\n", __func__,

			ret);

arch/x86/mm/init_32.c

+2 −2
Original line number Diff line number Diff line
@@ -839,14 +839,14 @@ int arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap, 
}



#ifdef CONFIG_MEMORY_HOTREMOVE

int arch_remove_memory(u64 start, u64 size)

int arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap)

{

	unsigned long start_pfn = start >> PAGE_SHIFT;

	unsigned long nr_pages = size >> PAGE_SHIFT;

	struct zone *zone;



	zone = page_zone(pfn_to_page(start_pfn));

	return __remove_pages(zone, start_pfn, nr_pages);

	return __remove_pages(zone, start_pfn, nr_pages, altmap);

}

#endif

#endif

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