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authorMuchun Song <[email protected]>2022-03-22 21:45:12 +0000
committerLinus Torvalds <[email protected]>2022-03-22 22:57:08 +0000
commite54084173487804f5e2f23facf107fd9336e637e (patch)
treec2959d4d67e6e28f7f4ef48825887ef8e301ac51 /mm/sparse-vmemmap.c
parentselftests: vm: add a hugetlb test case (diff)
downloadkernel-e54084173487804f5e2f23facf107fd9336e637e.tar.gz
kernel-e54084173487804f5e2f23facf107fd9336e637e.zip
mm: sparsemem: move vmemmap related to HugeTLB to CONFIG_HUGETLB_PAGE_FREE_VMEMMAP
The vmemmap_remap_free/alloc are relevant to HugeTLB, so move those functiongs to the scope of CONFIG_HUGETLB_PAGE_FREE_VMEMMAP. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Muchun Song <[email protected]> Reviewed-by: Barry Song <[email protected]> Cc: Bodeddula Balasubramaniam <[email protected]> Cc: Chen Huang <[email protected]> Cc: David Hildenbrand <[email protected]> Cc: Fam Zheng <[email protected]> Cc: Jonathan Corbet <[email protected]> Cc: Matthew Wilcox <[email protected]> Cc: Michal Hocko <[email protected]> Cc: Mike Kravetz <[email protected]> Cc: Oscar Salvador <[email protected]> Cc: Qi Zheng <[email protected]> Cc: Xiongchun Duan <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'mm/sparse-vmemmap.c')
-rw-r--r--mm/sparse-vmemmap.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
index c64d1aa3c4b5..8aecd6b3896c 100644
--- a/mm/sparse-vmemmap.c
+++ b/mm/sparse-vmemmap.c
@@ -34,6 +34,7 @@
#include <asm/pgalloc.h>
#include <asm/tlbflush.h>
+#ifdef CONFIG_HUGETLB_PAGE_FREE_VMEMMAP
/**
* struct vmemmap_remap_walk - walk vmemmap page table
*
@@ -419,6 +420,7 @@ int vmemmap_remap_alloc(unsigned long start, unsigned long end,
return 0;
}
+#endif /* CONFIG_HUGETLB_PAGE_FREE_VMEMMAP */
/*
* Allocate a block of memory to be used to back the virtual memory map