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| author | Aneesh Kumar K.V <[email protected]> | 2023-07-24 19:07:50 +0000 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2023-08-18 17:12:53 +0000 |
| commit | 40135fc7188cee4ae64777148fd462f4ea523181 (patch) | |
| tree | c5df0a510ec2b6a39fb99cbc423df6a0c955e3b5 /mm/sparse-vmemmap.c | |
| parent | mm/vmemmap: improve vmemmap_can_optimize and allow architectures to override (diff) | |
| download | kernel-40135fc7188cee4ae64777148fd462f4ea523181.tar.gz kernel-40135fc7188cee4ae64777148fd462f4ea523181.zip | |
mm/vmemmap: allow architectures to override how vmemmap optimization works
Architectures like powerpc will like to use different page table
allocators and mapping mechanisms to implement vmemmap optimization.
Similar to vmemmap_populate allow architectures to implement
vmemap_populate_compound_pages
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Aneesh Kumar K.V <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Christophe Leroy <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: Joao Martins <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Mike Kravetz <[email protected]>
Cc: Muchun Song <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Oscar Salvador <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'mm/sparse-vmemmap.c')
| -rw-r--r-- | mm/sparse-vmemmap.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c index a044a130405b..a2cbe44c48e1 100644 --- a/mm/sparse-vmemmap.c +++ b/mm/sparse-vmemmap.c @@ -358,6 +358,7 @@ int __meminit vmemmap_populate_hugepages(unsigned long start, unsigned long end, return 0; } +#ifndef vmemmap_populate_compound_pages /* * For compound pages bigger than section size (e.g. x86 1G compound * pages with 2M subsection size) fill the rest of sections as tail @@ -446,6 +447,8 @@ static int __meminit vmemmap_populate_compound_pages(unsigned long start_pfn, return 0; } +#endif + struct page * __meminit __populate_section_memmap(unsigned long pfn, unsigned long nr_pages, int nid, struct vmem_altmap *altmap, struct dev_pagemap *pgmap) |