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mm/sparse: cleanup the code surrounding memory_present()

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After removal of CONFIG_HAVE_MEMBLOCK_NODE_MAP we have two equivalent
functions that call memory_present() for each region in memblock.memory:
sparse_memory_present_with_active_regions() and membocks_present().

Moreover, all architectures have a call to either of these functions
preceding the call to sparse_init() and in the most cases they are called
one after the other.

Mark the regions from memblock.memory as present during sparce_init() by
making sparse_init() call memblocks_present(), make memblocks_present()
and memory_present() functions static and remove redundant
sparse_memory_present_with_active_regions() function.

Also remove no longer required HAVE_MEMORY_PRESENT configuration option.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20200712083130.22919-1-rppt@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Mike Rapoport
2020-08-06 23:24:02 -07:00
committed by Linus Torvalds
parent 6cda72047e
commit c89ab04feb
23 changed files with 19 additions and 101 deletions
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4
include/linux/mm.h
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@@ -2382,9 +2382,6 @@ static inline unsigned long get_num_physpages(void)
* for_each_valid_physical_page_range()
* memblock_add_node(base, size, nid)
* free_area_init(max_zone_pfns);
*
* sparse_memory_present_with_active_regions() calls memory_present() for
* each range when SPARSEMEM is enabled.
*/
void free_area_init(unsigned long *max_zone_pfn);
unsigned long node_map_pfn_alignment(void);
@@ -2395,7 +2392,6 @@ extern unsigned long absent_pages_in_range(unsigned long start_pfn,
extern void get_pfn_range_for_nid(unsigned int nid,
unsigned long *start_pfn, unsigned long *end_pfn);
extern unsigned long find_min_pfn_with_active_regions(void);
extern void sparse_memory_present_with_active_regions(int nid);
#ifndef CONFIG_NEED_MULTIPLE_NODES
static inline int early_pfn_to_nid(unsigned long pfn)