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mm/sparse: add common helper to mark all memblocks present

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Presently the arches arm64, arm and sh have a function which loops
through each memblock and calls memory present.  riscv will require a
similar function.

Introduce a common memblocks_present() function that can be used by all
the arches.  Subsequent patches will cleanup the arches that make use of
this.

Link: http://lkml.kernel.org/r/20181107205433.3875-3-logang@deltatee.com
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Oscar Salvador <osalvador@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Logan Gunthorpe
2018-12-14 14:16:57 -08:00
committed by Linus Torvalds
parent d1402fc708
commit 9def36e0fa
2 changed files with 22 additions and 0 deletions
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6
include/linux/mmzone.h
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@@ -783,6 +783,12 @@ void memory_present(int nid, unsigned long start, unsigned long end);
static inline void memory_present(int nid, unsigned long start, unsigned long end) {}
#endif
#if defined(CONFIG_SPARSEMEM)
void memblocks_present(void);
#else
static inline void memblocks_present(void) {}
#endif
#ifdef CONFIG_HAVE_MEMORYLESS_NODES
int local_memory_node(int node_id);
#else