diff options
| author | Muchun Song <songmuchun@bytedance.com> | 2026-09-10 14:32:50 +0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-10-06 17:38:51 -0700 |
| commit | 328649715319855cf16dd7b6aaecb8c44eef4240 (patch) | |
| tree | 84ea5b4d6d231fe5cb868a82db1201007da91610 /include/linux | |
| parent | b8abb1c0c40f1f82e8dbd7986a531d5229e62f01 (diff) | |
mm/sparse-vmemmap: remove SPARSEMEM_VMEMMAP_PREINIT support
SPARSEMEM_VMEMMAP_PREINIT existed only to support HugeTLB's early vmemmap
optimization setup.
Now that HugeTLB bootmem vmemmap optimization uses the common
section-based sparse-vmemmap path, the sparse initialization code no
longer needs a separate pre-initialization mechanism for vmemmap
population.
Remove the related Kconfig symbols, section flag, and empty early hook, so
present sections always go through the normal sparse setup path.
Link: https://lore.kernel.org/20260910063256.64386-12-songmuchun@bytedance.com
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Acked-by: Qi Zheng <qi.zheng@linux.dev>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Cc: David Laight <david.laight.linux@gmail.com>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mmzone.h | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 2c4f63e379da..f2d39a888eac 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -2096,9 +2096,6 @@ enum { #ifdef CONFIG_ZONE_DEVICE SECTION_TAINT_ZONE_DEVICE_BIT, #endif -#ifdef CONFIG_SPARSEMEM_VMEMMAP_PREINIT - SECTION_IS_VMEMMAP_PREINIT_BIT, -#endif SECTION_MAP_LAST_BIT, }; @@ -2109,9 +2106,6 @@ enum { #ifdef CONFIG_ZONE_DEVICE #define SECTION_TAINT_ZONE_DEVICE BIT(SECTION_TAINT_ZONE_DEVICE_BIT) #endif -#ifdef CONFIG_SPARSEMEM_VMEMMAP_PREINIT -#define SECTION_IS_VMEMMAP_PREINIT BIT(SECTION_IS_VMEMMAP_PREINIT_BIT) -#endif #define SECTION_MAP_MASK (~(BIT(SECTION_MAP_LAST_BIT) - 1)) #define SECTION_NID_SHIFT SECTION_MAP_LAST_BIT @@ -2166,24 +2160,6 @@ static inline int online_device_section(const struct mem_section *section) } #endif -#ifdef CONFIG_SPARSEMEM_VMEMMAP_PREINIT -static inline int preinited_vmemmap_section(const struct mem_section *section) -{ - return (section && - (section->section_mem_map & SECTION_IS_VMEMMAP_PREINIT)); -} - -void sparse_vmemmap_init_nid_early(int nid); -#else -static inline int preinited_vmemmap_section(const struct mem_section *section) -{ - return 0; -} -static inline void sparse_vmemmap_init_nid_early(int nid) -{ -} -#endif - static inline int online_section_nr(unsigned long nr) { return online_section(__nr_to_section(nr)); @@ -2385,7 +2361,6 @@ static inline unsigned long next_present_section_nr(unsigned long section_nr) #endif #else -#define sparse_vmemmap_init_nid_early(_nid) do {} while (0) #define pfn_in_present_section pfn_valid #endif /* CONFIG_SPARSEMEM */ |