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authorMuchun Song <songmuchun@bytedance.com>2022-03-22 14:45:12 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-03-22 15:57:08 -0700
commite54084173487804f5e2f23facf107fd9336e637e (patch)
treec2959d4d67e6e28f7f4ef48825887ef8e301ac51 /mm/sparse-vmemmap.c
parentb147c89cd429321a59147368378c8aba17c8480f (diff)
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/20211101031651.75851-6-songmuchun@bytedance.com Signed-off-by: Muchun Song <songmuchun@bytedance.com> Reviewed-by: Barry Song <song.bao.hua@hisilicon.com> Cc: Bodeddula Balasubramaniam <bodeddub@amazon.com> Cc: Chen Huang <chenhuang5@huawei.com> Cc: David Hildenbrand <david@redhat.com> Cc: Fam Zheng <fam.zheng@bytedance.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Oscar Salvador <osalvador@suse.de> Cc: Qi Zheng <zhengqi.arch@bytedance.com> Cc: Xiongchun Duan <duanxiongchun@bytedance.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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