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authorDavid Hildenbrand (Arm) <david@kernel.org>2026-03-20 23:13:43 +0100
committerAndrew Morton <akpm@linux-foundation.org>2026-04-05 13:53:32 -0700
commitfead6dcff83b02f8d6dc3c1ebbe4e09c05c54ee5 (patch)
tree409cb85876a62325507aa4cb9ad69bb51c07e675 /include/linux
parentdac89b150bdb32fd276a3a22fa66c481dab47dea (diff)
mm: prepare to move subsection_map_init() to mm/sparse-vmemmap.c
We want to move subsection_map_init() to mm/sparse-vmemmap.c. To prepare for getting rid of subsection_map_init() in mm/sparse.c completely, use a static inline function for !CONFIG_SPARSEMEM_VMEMMAP. While at it, move the declaration to internal.h and rename it to "sparse_init_subsection_map()". Link: https://lkml.kernel.org/r/20260320-sparsemem_cleanups-v2-11-096addc8800d@kernel.org Signed-off-by: David Hildenbrand (Arm) <david@kernel.org> Reviewed-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org> Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org> Cc: Axel Rasmussen <axelrasmussen@google.com> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Oscar Salvador <osalvador@suse.de> Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Vlastimil Babka <vbabka@kernel.org> Cc: Wei Xu <weixugc@google.com> Cc: Yuanchu Xie <yuanchu@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/mmzone.h3
1 files changed, 0 insertions, 3 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 3f651baf7e2b..7cf4a194aea2 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -1982,8 +1982,6 @@ struct mem_section_usage {
unsigned long pageblock_flags[0];
};
-void subsection_map_init(unsigned long pfn, unsigned long nr_pages);
-
struct page;
struct page_ext;
struct mem_section {
@@ -2376,7 +2374,6 @@ static inline unsigned long next_present_section_nr(unsigned long section_nr)
#define sparse_vmemmap_init_nid_early(_nid) do {} while (0)
#define sparse_vmemmap_init_nid_late(_nid) do {} while (0)
#define pfn_in_present_section pfn_valid
-#define subsection_map_init(_pfn, _nr_pages) do {} while (0)
#endif /* CONFIG_SPARSEMEM */
/*