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mm: pass the vmem_altmap to vmemmap_populate

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

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Christoph Hellwig 2017-12-29 08:53:54 +01:00 • committed by Dan Williams
parent 24e6d5a59a
commit 7b73d978a5
11 changed files with 39 additions and 29 deletions
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3
include/linux/memory_hotplug.h
View file

@ -327,7 +327,8 @@ extern void move_pfn_range_to_zone(struct zone *zone, unsigned long start_pfn,
extern int offline_pages(unsigned long start_pfn, unsigned long nr_pages);
extern bool is_memblock_offlined(struct memory_block *mem);
extern void remove_memory(int nid, u64 start, u64 size);
extern int sparse_add_one_section(struct pglist_data *pgdat, unsigned long start_pfn);
extern int sparse_add_one_section(struct pglist_data *pgdat,
unsigned long start_pfn, struct vmem_altmap *altmap);
extern void sparse_remove_one_section(struct zone *zone, struct mem_section *ms,
unsigned long map_offset);
extern struct page *sparse_decode_mem_map(unsigned long coded_mem_map,

6
include/linux/mm.h
View file

@ -2538,7 +2538,8 @@ void sparse_mem_maps_populate_node(struct page **map_map,
unsigned long map_count,
int nodeid);
struct page *sparse_mem_map_populate(unsigned long pnum, int nid);
struct page *sparse_mem_map_populate(unsigned long pnum, int nid,
struct vmem_altmap *altmap);
pgd_t *vmemmap_pgd_populate(unsigned long addr, int node);
p4d_t *vmemmap_p4d_populate(pgd_t *pgd, unsigned long addr, int node);
pud_t *vmemmap_pud_populate(p4d_t *p4d, unsigned long addr, int node);
@ -2556,7 +2557,8 @@ static inline void *vmemmap_alloc_block_buf(unsigned long size, int node)
void vmemmap_verify(pte_t *, int, unsigned long, unsigned long);
int vmemmap_populate_basepages(unsigned long start, unsigned long end,
int node);
int vmemmap_populate(unsigned long start, unsigned long end, int node);
int vmemmap_populate(unsigned long start, unsigned long end, int node,
struct vmem_altmap *altmap);
void vmemmap_populate_print_last(void);
#ifdef CONFIG_MEMORY_HOTPLUG
void vmemmap_free(unsigned long start, unsigned long end);