[PATCHv2,21/59] mm/page_ext: Export lookup_page_ext() symbol
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Message ID 20190731150813.26289-22-kirill.shutemov@linux.intel.com
State New
Headers show
Series
  • Intel MKTME enabling
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Commit Message

Kirill A. Shutemov July 31, 2019, 3:07 p.m. UTC
page_keyid() is inline funcation that uses lookup_page_ext(). KVM is
going to use page_keyid() and since KVM can be built as a module
lookup_page_ext() has to be exported.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
---
 mm/page_ext.c | 2 ++
 1 file changed, 2 insertions(+)

Patch
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diff --git a/mm/page_ext.c b/mm/page_ext.c
index c52b77c13cd9..eeca218891e7 100644
--- a/mm/page_ext.c
+++ b/mm/page_ext.c
@@ -139,6 +139,7 @@  struct page_ext *lookup_page_ext(const struct page *page)
 					MAX_ORDER_NR_PAGES);
 	return get_entry(base, index);
 }
+EXPORT_SYMBOL_GPL(lookup_page_ext);
 
 static int __init alloc_node_page_ext(int nid)
 {
@@ -209,6 +210,7 @@  struct page_ext *lookup_page_ext(const struct page *page)
 		return NULL;
 	return get_entry(section->page_ext, pfn);
 }
+EXPORT_SYMBOL_GPL(lookup_page_ext);
 
 static void *__meminit alloc_page_ext(size_t size, int nid)
 {